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Agrochemicals are commonly used in agriculture to protect crops and ensure yields. Several of them are mobile within the plant and, being perceived as xenobiotics regardless of their protective/curative roles, they induce a reprogramming of secondary metabolism linked to the detoxification processes even in the absence of phenotype symptoms. Moreover, it is well documented that plants are able to shape the microbial population at the rhizosphere and to significantly affect the processes occurring therein thanks to the root exudation of different metabolites. Here we show that plant metabolic response to foliarly-applied pesticides is much broader than what previously thought and includes diverse and compound-specific hidden processes. Among others, stress-related metabolism and phytohormones profile underwent a considerable reorganization. Moreover, a distinctive microbial rearrangement of the rhizosphere was recorded following foliar application of pesticides. Such effects have unavoidably energetic and metabolic costs for the plant paving the way to both positive and negative aspects. The understanding of these effects is crucial for an increasingly sustainable use of pesticides in agriculture.
Stefano Cesco; Luigi Lucini; Begona Miras-Moreno; Luigimaria Borruso; Tanja Mimmo; Youry Pii; Edoardo Puglisi; Giulia Spini; Eren Taskin; Raphael Tiziani; Maria Simona Zangrillo; Marco Trevisan. The hidden effects of agrochemicals on plant metabolism and root-associated microorganisms. Plant Science 2021, 311, 111012 .
AMA StyleStefano Cesco, Luigi Lucini, Begona Miras-Moreno, Luigimaria Borruso, Tanja Mimmo, Youry Pii, Edoardo Puglisi, Giulia Spini, Eren Taskin, Raphael Tiziani, Maria Simona Zangrillo, Marco Trevisan. The hidden effects of agrochemicals on plant metabolism and root-associated microorganisms. Plant Science. 2021; 311 ():111012.
Chicago/Turabian StyleStefano Cesco; Luigi Lucini; Begona Miras-Moreno; Luigimaria Borruso; Tanja Mimmo; Youry Pii; Edoardo Puglisi; Giulia Spini; Eren Taskin; Raphael Tiziani; Maria Simona Zangrillo; Marco Trevisan. 2021. "The hidden effects of agrochemicals on plant metabolism and root-associated microorganisms." Plant Science 311, no. : 111012.
Protein hydrolysates (PHs) are employed in agriculture to increase the sustainability of farming systems, with positive results on crop productivity and response against environmental stressors. Nevertheless, the molecular mechanism(s) triggered by their specific activity is not clearly understood. In this work, five PHs obtained by enzymatic hydrolysis of different vegetal protein sources were tested for their root-promoting activity on tomato cuttings. All the treatments improved both root length and number when compared to negative controls. Distinctive metabolomic signatures were highlighted in response to treatments, indicating the triggering of different molecular processes in leaf tissues of tomato cuttings. PHs differentially modulated the biosynthesis of plant stress-protectants, such as alkaloids and phenylpropanoids. Moreover, metabolites involved in phytohormone biosynthesis were significantly impacted. In this context, a clear modulation of several compounds related to auxin homeostasis was observed. In addition, the differential modulation of SlIAA2 and SlIAA9 genes, which are involved in the IAA signalling pathway, might further suggest the auxin-like activity elicited by the PHs tested. Here we provide evidence that PHs can impact plant molecular level, positively affecting root development, most likely by affecting the signalling cascades activated in leaf tissues. The biostimulant activity was sustained by PH-specific response at the molecular level, likely ascribable to their heterogeneous botanical origins. In fact, our findings did not point out a clear universal response to PHs, and specific effects are to be investigated.
Valentina Buffagni; Angela Ceccarelli; Youry Pii; Begoña Miras-Moreno; Youssef Rouphael; Mariateresa Cardarelli; Giuseppe Colla; Luigi Lucini. The Modulation of Auxin-Responsive Genes, Phytohormone Profile, and Metabolomic Signature in Leaves of Tomato Cuttings Is Specifically Modulated by Different Protein Hydrolysates. Agronomy 2021, 11, 1524 .
AMA StyleValentina Buffagni, Angela Ceccarelli, Youry Pii, Begoña Miras-Moreno, Youssef Rouphael, Mariateresa Cardarelli, Giuseppe Colla, Luigi Lucini. The Modulation of Auxin-Responsive Genes, Phytohormone Profile, and Metabolomic Signature in Leaves of Tomato Cuttings Is Specifically Modulated by Different Protein Hydrolysates. Agronomy. 2021; 11 (8):1524.
Chicago/Turabian StyleValentina Buffagni; Angela Ceccarelli; Youry Pii; Begoña Miras-Moreno; Youssef Rouphael; Mariateresa Cardarelli; Giuseppe Colla; Luigi Lucini. 2021. "The Modulation of Auxin-Responsive Genes, Phytohormone Profile, and Metabolomic Signature in Leaves of Tomato Cuttings Is Specifically Modulated by Different Protein Hydrolysates." Agronomy 11, no. 8: 1524.
In recent years, the application of nanotechnology for the development of new “smart fertilizers” is regarded as one of the most promising solutions for boosting a more sustainable and modern grapevine cultivation. Despite showing interesting potential benefits over conventional fertilization practices, the use of nanofertilizers in viticulture is still underexplored. In this work, we investigated the effectiveness of non-toxic calcium phosphate nanoparticles (Ca3(PO4)2∙nH2O) doped with urea (U-ACP) as a nitrogen source for grapevine fertilization. Plant tests were performed for two years (2019–2020) on potted adult Pinot gris cv. vines grown under semi-controlled conditions. Four fertilization treatments were compared: N1: commercial granular fertilization (45 kg N ha−1); N2: U-ACP applied in fertigation (36 kg N ha−1); N3: foliar application of U-ACP (36 kg N ha−1); C: control, receiving no N fertilization. Plant nitrogen status (SPAD), yield parameters as well as those of berry quality were analyzed. Results here presented clearly show the capability of vine plants to recognize and use the nitrogen supplied with U-ACP nanoparticles either when applied foliarly or to the soil. Moreover, all of the quali–quantitative parameters measured in vine plants fed with nanoparticles were perfectly comparable to those of plants grown in conventional condition, despite the restrained dosage of nitrogen applied with the nanoparticles. Therefore, these results provide both clear evidence of the efficacy of U-ACP nanoparticles as a nitrogen source and the basis for the development of alternative nitrogen fertilization strategies, optimizing the dosage/benefit ratio and being particularly interesting in a context of a more sustainable and modern viticulture.
Federica Gaiotti; Marco Lucchetta; Giacomo Rodegher; Daniel Lorenzoni; Edoardo Longo; Emanuele Boselli; Stefano Cesco; Nicola Belfiore; Lorenzo Lovat; José Delgado-López; Francisco Carmona; Antonietta Guagliardi; Norberto Masciocchi; Youry Pii. Urea-Doped Calcium Phosphate Nanoparticles as Sustainable Nitrogen Nanofertilizers for Viticulture: Implications on Yield and Quality of Pinot Gris Grapevines. Agronomy 2021, 11, 1026 .
AMA StyleFederica Gaiotti, Marco Lucchetta, Giacomo Rodegher, Daniel Lorenzoni, Edoardo Longo, Emanuele Boselli, Stefano Cesco, Nicola Belfiore, Lorenzo Lovat, José Delgado-López, Francisco Carmona, Antonietta Guagliardi, Norberto Masciocchi, Youry Pii. Urea-Doped Calcium Phosphate Nanoparticles as Sustainable Nitrogen Nanofertilizers for Viticulture: Implications on Yield and Quality of Pinot Gris Grapevines. Agronomy. 2021; 11 (6):1026.
Chicago/Turabian StyleFederica Gaiotti; Marco Lucchetta; Giacomo Rodegher; Daniel Lorenzoni; Edoardo Longo; Emanuele Boselli; Stefano Cesco; Nicola Belfiore; Lorenzo Lovat; José Delgado-López; Francisco Carmona; Antonietta Guagliardi; Norberto Masciocchi; Youry Pii. 2021. "Urea-Doped Calcium Phosphate Nanoparticles as Sustainable Nitrogen Nanofertilizers for Viticulture: Implications on Yield and Quality of Pinot Gris Grapevines." Agronomy 11, no. 6: 1026.
Agrochemicals are commonly used in agriculture to protect crops and ensure yields. Several of them are mobile within the plant and, being perceived as xenobiotics regardless of their protective/curative roles, they induce a reprogramming of secondary metabolism linked to the detoxification processes even in the absence of phenotype symptoms. Moreover, it is well documented that plants, thanks to the root exudation of different metabolites, are able to shape the microbial population at the rhizosphere and to significantly affect the processes occurring therein. Here we show that plant metabolic response to foliarly-applied pesticides is much broader than what previously thought and includes diverse and compound-specific hidden processes. Among others, stress-related metabolism and phytohormones profile underwent a considerable reorganization. Moreover, a distinctive microbial rearrangement of the rhizosphere was recorded following foliar application of pesticides. Such effects have unavoidably energetic and metabolic costs for the plant paving the way to both positive and negative aspects. The understanding of these effects is crucial for an increasingly sustainable use of pesticides in agriculture. Highlight The foliar application of pesticides induces a broad metabolic reprogramming in plant and shapes the microbial population of the rhizosphere.
S. Cesco; L. Lucini; B. Miras-Moreno; L. Borruso; T. Mimmo; Y. Pii; E. Puglisi; G. Spini; E. Taskin; R. Tiziani; M. S. Zangrillo; M. Trevisan. The hidden effects of agrochemicals on plant metabolism and root-associated microorganisms. 2021, 1 .
AMA StyleS. Cesco, L. Lucini, B. Miras-Moreno, L. Borruso, T. Mimmo, Y. Pii, E. Puglisi, G. Spini, E. Taskin, R. Tiziani, M. S. Zangrillo, M. Trevisan. The hidden effects of agrochemicals on plant metabolism and root-associated microorganisms. . 2021; ():1.
Chicago/Turabian StyleS. Cesco; L. Lucini; B. Miras-Moreno; L. Borruso; T. Mimmo; Y. Pii; E. Puglisi; G. Spini; E. Taskin; R. Tiziani; M. S. Zangrillo; M. Trevisan. 2021. "The hidden effects of agrochemicals on plant metabolism and root-associated microorganisms." , no. : 1.
Nanosized fertilizers are the new frontier of nanotechnology towards a sustainable agriculture. Here, an efficient N-nanofertilizer is obtained by post-synthetic modification (PSM) of nitrate-doped amorphous calcium phosphate (ACP) nanoparticles (NPs) with urea. The unwasteful PSM protocol leads to N-payloads as large as 8.1 w/w%, is well replicated by using inexpensive technical-grade reagents for cost-effective up-scaling and moderately favours urea release slowdown. Using the PSM approach, the N amount is ca. 3 times larger than that obtained in an equivalent one-pot synthesis where urea and nitrate are jointly added during the NPs preparation. In vivo tests on cucumber plants in hydroponic conditions show that N-doped ACP NPs, with half absolute N-content than in conventional urea treatment, promote the formation of an equivalent amount of root and shoot biomass, without nitrogen depletion. The high nitrogen use efficiency (up to 69%) and a cost-effective preparation method support the sustainable real usage of N-doped ACP as a nanofertilizer.
Francisco J. Carmona; Gregorio Dal Sasso; Gloria B. Ramírez-Rodríguez; Youry Pii; José Manuel Delgado-López; Antonietta Guagliardi; Norberto Masciocchi. Urea-functionalized amorphous calcium phosphate nanofertilizers: optimizing the synthetic strategy towards environmental sustainability and manufacturing costs. Scientific Reports 2021, 11, 1 -14.
AMA StyleFrancisco J. Carmona, Gregorio Dal Sasso, Gloria B. Ramírez-Rodríguez, Youry Pii, José Manuel Delgado-López, Antonietta Guagliardi, Norberto Masciocchi. Urea-functionalized amorphous calcium phosphate nanofertilizers: optimizing the synthetic strategy towards environmental sustainability and manufacturing costs. Scientific Reports. 2021; 11 (1):1-14.
Chicago/Turabian StyleFrancisco J. Carmona; Gregorio Dal Sasso; Gloria B. Ramírez-Rodríguez; Youry Pii; José Manuel Delgado-López; Antonietta Guagliardi; Norberto Masciocchi. 2021. "Urea-functionalized amorphous calcium phosphate nanofertilizers: optimizing the synthetic strategy towards environmental sustainability and manufacturing costs." Scientific Reports 11, no. 1: 1-14.
Despite the scientific evidence supporting their biostimulant activity, the molecular mechanism(s) underlying the activity of protein hydrolysates (PHs) and the specificity among different products are still poorly explored. This work tested five different protein hydrolysates, produced from different plant sources using the same enzymatic approach, for their ability to promote rooting in tomato cuttings following quick dipping. Provided that all the different PHs increased root length (45–93%) and some of them increased root number (37–56%), untargeted metabolomics followed by multivariate statistics and pathway analysis were used to unravel the molecular processes at the basis of the biostimulant activity. Distinct metabolomic signatures could be found in roots following the PHs treatments. In general, PHs shaped the phytohormone profile, modulating the complex interaction between cytokinins and auxins, an interplay playing a pivotal role in root development, and triggered a down accumulation of brassinosteroids. Concerning secondary metabolism, PHs induced the accumulation of aliphatic glucosinolates, alkaloids, and phenylpropanoids, potentially eliciting crop resilience to stress conditions. Here, we confirm that PHs may have a hormone-like activity, and that their application can modulate plant growth, likely interfering with signaling processes. Noteworthy, the heterogenicity of the botanical origin supported the distinctive and peculiar metabolomic responses we observed across the products tested. While supporting their biostimulant activity, these findings suggest that a generalized crop response to PHs cannot be defined and that specific effects are rather to be investigated.
Angela Ceccarelli; Begoña Miras-Moreno; Valentina Buffagni; Biancamaria Senizza; Youry Pii; Mariateresa Cardarelli; Youssef Rouphael; Giuseppe Colla; Luigi Lucini. Foliar Application of Different Vegetal-Derived Protein Hydrolysates Distinctively Modulates Tomato Root Development and Metabolism. Plants 2021, 10, 326 .
AMA StyleAngela Ceccarelli, Begoña Miras-Moreno, Valentina Buffagni, Biancamaria Senizza, Youry Pii, Mariateresa Cardarelli, Youssef Rouphael, Giuseppe Colla, Luigi Lucini. Foliar Application of Different Vegetal-Derived Protein Hydrolysates Distinctively Modulates Tomato Root Development and Metabolism. Plants. 2021; 10 (2):326.
Chicago/Turabian StyleAngela Ceccarelli; Begoña Miras-Moreno; Valentina Buffagni; Biancamaria Senizza; Youry Pii; Mariateresa Cardarelli; Youssef Rouphael; Giuseppe Colla; Luigi Lucini. 2021. "Foliar Application of Different Vegetal-Derived Protein Hydrolysates Distinctively Modulates Tomato Root Development and Metabolism." Plants 10, no. 2: 326.
In recent decades, agriculture has faced the fundamental challenge of needing to increase food production and quality in order to meet the requirements of a growing global population. Similarly, viticulture has also been undergoing change. Several countries are reducing their vineyard areas, and several others are increasing them. In addition, viticulture is moving towards higher altitudes and latitudes due to climate change. Furthermore, global warming is also exacerbating the incidence of fungal diseases in vineyards, forcing farmers to apply agrochemicals to preserve production yields and quality. The repeated application of copper (Cu)-based fungicides in conventional and organic farming has caused a stepwise accumulation of Cu in vineyard soils, posing environmental and toxicological threats. High Cu concentrations in soils can have multiple impacts on agricultural systems. In fact, it can (i) alter the chemical-physical properties of soils, thus compromising their fertility; (ii) induce toxicity phenomena in plants, producing detrimental effects on growth and productivity; and (iii) affect the microbial biodiversity of soils, thereby influencing some microbial-driven soil processes. However, several indirect (e.g., management of rhizosphere processes through intercropping and/or fertilization strategies) and direct (e.g., exploitation of vine resistant genotypes) strategies have been proposed to restrain Cu accumulation in soils. Furthermore, the application of precision and smart viticulture paradigms and their related technologies could allow a timely, localized and balanced distribution of agrochemicals to achieve the required goals. The present review highlights the necessity of applying multidisciplinary approaches to meet the requisites of sustainability demanded of modern viticulture.
Stefano Cesco; Youry Pii; Luigimaria Borruso; Guido Orzes; Paolo Lugli; Fabrizio Mazzetto; Giulio Genova; Marco Signorini; Gustavo Brunetto; Roberto Terzano; Gianpiero Vigani; Tanja Mimmo. A Smart and Sustainable Future for Viticulture Is Rooted in Soil: How to Face Cu Toxicity. Applied Sciences 2021, 11, 907 .
AMA StyleStefano Cesco, Youry Pii, Luigimaria Borruso, Guido Orzes, Paolo Lugli, Fabrizio Mazzetto, Giulio Genova, Marco Signorini, Gustavo Brunetto, Roberto Terzano, Gianpiero Vigani, Tanja Mimmo. A Smart and Sustainable Future for Viticulture Is Rooted in Soil: How to Face Cu Toxicity. Applied Sciences. 2021; 11 (3):907.
Chicago/Turabian StyleStefano Cesco; Youry Pii; Luigimaria Borruso; Guido Orzes; Paolo Lugli; Fabrizio Mazzetto; Giulio Genova; Marco Signorini; Gustavo Brunetto; Roberto Terzano; Gianpiero Vigani; Tanja Mimmo. 2021. "A Smart and Sustainable Future for Viticulture Is Rooted in Soil: How to Face Cu Toxicity." Applied Sciences 11, no. 3: 907.
Plant Growth Promoting Rhizobacteria (PGPR) represent a heterogeneous group of bacteria, which have been characterized for their ability to influence the growth and the fitness of agricultural plants. In the quest of more sustainable practices, PGPR have been suggested as a valid complement for the agronomical practices, since they can influence several biochemical and molecular mechanisms related to the mineral nutrients uptake, the plant pathogens suppression, and the phytohormones production. Within the present work, three bacterial strains, namely Enterobacter asburiae BFD160, Pseudomonas koreensis TFD26, and Pseudomonas lini BFS112, previously characterized on the basis of distinctive PGPR traits, were tested to evaluate: (i) their persistence in soil microcosms; (ii) their effects on seeds germination; (iii) their possible influence on biochemical and physiological parameters related to plant growth, fruit quality, and plant nutrient acquisition and allocation. To these aims, two microcosms experiments featuring different complexities, i.e., namely a growth chamber and a tunnel, were used to compare the effects of the microbial inoculum to those of chemical fertilization on Cucumis sativus L. plants. In the growth experiment, the Pseudomonas spp. induced positive effects on both growth and physiological parameters; TFD26, in particular, induced an enhanced accumulation of mineral nutrients (Fe, Ca, Mn, Ni, Zn) in plant tissues. In the tunnel experiment, only P. koreensis TFD26 was selected as inoculum for cucumber plants used in combination or in alternative to a chemical fertilizer. Interestingly, the inoculation with TFD26 alone or in combination with half-strength chemical fertilizer could induce similar (e.g., Ca accumulation) or enhanced (e.g., micronutrients concentration in plant tissues and fruits) effects as compared to plants treated with full-strength chemical fertilizers. Overall, the results hereby presented show that the use of PGPR can lead to comparable, and in some cases improved, effects on biochemical and physiological parameters of cucumber plants and fruits. Although these data are referred to experiments carried out in controlled condition, though different from an open filed cultivation, our observations suggest that the application of PGPR and fertilizers mixtures might help shrinking the use of chemical fertilization and potentially leading to a more sustainable agricultural practice.
Marina Scagliola; Fabio Valentinuzzi; Tanja Mimmo; Stefano Cesco; Carmine Crecchio; Youry Pii. Bioinoculants as Promising Complement of Chemical Fertilizers for a More Sustainable Agricultural Practice. Frontiers in Sustainable Food Systems 2021, 4, 1 .
AMA StyleMarina Scagliola, Fabio Valentinuzzi, Tanja Mimmo, Stefano Cesco, Carmine Crecchio, Youry Pii. Bioinoculants as Promising Complement of Chemical Fertilizers for a More Sustainable Agricultural Practice. Frontiers in Sustainable Food Systems. 2021; 4 ():1.
Chicago/Turabian StyleMarina Scagliola; Fabio Valentinuzzi; Tanja Mimmo; Stefano Cesco; Carmine Crecchio; Youry Pii. 2021. "Bioinoculants as Promising Complement of Chemical Fertilizers for a More Sustainable Agricultural Practice." Frontiers in Sustainable Food Systems 4, no. : 1.
Tree responses to fertilizer management are complex and are influenced by the interactions between the environment, other organisms, and the combined genetics of composite trees. Increased consumer awareness of the environmental impact of agriculture has stimulated research toward increasing nutrient-use efficiency, improving environmental sustainability, and maximizing quality. Here, we highlight recent advancements and identify knowledge gaps in nutrient dynamics across the soil–rhizosphere–tree continuum for fruit crops. Beneficial soil management practices can enhance nutrient uptake and there has been significant progress in the understanding of how roots, microorganisms, and soil interact to enhance nutrient acquisition in the rhizosphere. Characterizing root architecture, in situ, still remains one of the greatest research challenges in perennial fruit research. However, the last decade has advanced the characterization of root nutrient uptake and transport in plants but studies in tree fruit crops have been limited. Calcium, and its balance relative to other macronutrients, has been a primary focus for mineral nutrient research because of its important contributions to the development of physiological disorders. However, annual elemental redistribution makes these interactions complex. The development of new approaches for measuring nutrient movement in soil and plant systems will be critical for achieving sustainable production of high-quality fruit in the future.
Lee Kalcsits; Elmi Lotze; Massimo Tagliavini; Kirsten Hannam; Tanja Mimmo; Denise Neilsen; Gerry Neilsen; David Atkinson; Erica Casagrande Biasuz; Luigimaria Borruso; Stefano Cesco; Esmaeil Fallahi; Youry Pii; Nadia Valverdi. Recent Achievements and New Research Opportunities for Optimizing Macronutrient Availability, Acquisition, and Distribution for Perennial Fruit Crops. Agronomy 2020, 10, 1738 .
AMA StyleLee Kalcsits, Elmi Lotze, Massimo Tagliavini, Kirsten Hannam, Tanja Mimmo, Denise Neilsen, Gerry Neilsen, David Atkinson, Erica Casagrande Biasuz, Luigimaria Borruso, Stefano Cesco, Esmaeil Fallahi, Youry Pii, Nadia Valverdi. Recent Achievements and New Research Opportunities for Optimizing Macronutrient Availability, Acquisition, and Distribution for Perennial Fruit Crops. Agronomy. 2020; 10 (11):1738.
Chicago/Turabian StyleLee Kalcsits; Elmi Lotze; Massimo Tagliavini; Kirsten Hannam; Tanja Mimmo; Denise Neilsen; Gerry Neilsen; David Atkinson; Erica Casagrande Biasuz; Luigimaria Borruso; Stefano Cesco; Esmaeil Fallahi; Youry Pii; Nadia Valverdi. 2020. "Recent Achievements and New Research Opportunities for Optimizing Macronutrient Availability, Acquisition, and Distribution for Perennial Fruit Crops." Agronomy 10, no. 11: 1738.
Sweet basil (Ocimum basilicum L.) is one of the most produced aromatic herbs in the world, exploiting hydroponic systems. It has been widely assessed that macronutrients, like nitrogen (N) and sulfur (S), can strongly affect the organoleptic qualities of agricultural products, thus influencing their nutraceutical value. In addition, plant-growth-promoting rhizobacteria (PGPR) have been shown to affect plant growth and quality. Azospirillum brasilense is a PGPR able to colonize the root system of different crops, promoting their growth and development and influencing the acquisition of mineral nutrients. On the bases of these observations, we aimed at investigating the impact of both mineral nutrients supply and rhizobacteria inoculation on the nutraceutical value on two different sweet basil varieties, i.e., Genovese and Red Rubin. To these objectives, basil plants have been grown in hydroponics, with nutrient solutions fortified for the concentration of either S or N, supplied as SO42– or NO3–, respectively. In addition, plants were either non-inoculated or inoculated with A. brasilense. At harvest, basil plants were assessed for the yield and the nutraceutical properties of the edible parts. The cultivation of basil plants in the fortified nutrient solutions showed a general increasing trend in the accumulation of the fresh biomass, albeit the inoculation with A. brasilense did not further promote the growth. The metabolomic analyses disclosed a strong effect of treatments on the differential accumulation of metabolites in basil leaves, producing the modulation of more than 400 compounds belonging to the secondary metabolism, as phenylpropanoids, isoprenoids, alkaloids, several flavonoids, and terpenoids. The primary metabolism that resulted was also influenced by the treatments showing changes in the fatty acid, carbohydrates, and amino acids metabolism. The amino acid analysis revealed that the treatments induced an increase in arginine (Arg) content in the leaves, which has been shown to have beneficial effects on human health. In conclusion, between the two cultivars studied, Red Rubin displayed the most positive effect in terms of nutritional value, which was further enhanced following A. brasilense inoculation.
Simun Kolega; Begona Miras-Moreno; Valentina Buffagni; Luigi Lucini; Fabio Valentinuzzi; Mauro Maver; Tanja Mimmo; Marco Trevisan; Youry Pii; Stefano Cesco. Nutraceutical Profiles of Two Hydroponically Grown Sweet Basil Cultivars as Affected by the Composition of the Nutrient Solution and the Inoculation With Azospirillum brasilense. Frontiers in Plant Science 2020, 11, 1 .
AMA StyleSimun Kolega, Begona Miras-Moreno, Valentina Buffagni, Luigi Lucini, Fabio Valentinuzzi, Mauro Maver, Tanja Mimmo, Marco Trevisan, Youry Pii, Stefano Cesco. Nutraceutical Profiles of Two Hydroponically Grown Sweet Basil Cultivars as Affected by the Composition of the Nutrient Solution and the Inoculation With Azospirillum brasilense. Frontiers in Plant Science. 2020; 11 ():1.
Chicago/Turabian StyleSimun Kolega; Begona Miras-Moreno; Valentina Buffagni; Luigi Lucini; Fabio Valentinuzzi; Mauro Maver; Tanja Mimmo; Marco Trevisan; Youry Pii; Stefano Cesco. 2020. "Nutraceutical Profiles of Two Hydroponically Grown Sweet Basil Cultivars as Affected by the Composition of the Nutrient Solution and the Inoculation With Azospirillum brasilense." Frontiers in Plant Science 11, no. : 1.
Plasmopara viticola is one of the most important pathogens infecting Vitis vinifera plants. The interactions among P. viticola and both susceptible and resistant grapevine plants have been extensively characterised, at transcriptomic, proteomic and metabolomic levels. However, the involvement of plants ionome in the response against the pathogen has been completely neglected so far. Therefore, this study was aimed at investigating the possible role of leaf ionomic modulation during compatible and incompatible interactions between P. viticola and grapevine plants. In susceptible cultivars, a dramatic redistribution of mineral elements has been observed, thus uncovering a possible role for mineral nutrients in the response against pathogens. On the contrary, the resistant cultivars did not present substantial rearrangement of mineral elements at leaf level, except for manganese (Mn) and iron (Fe). This might demonstrate that, resistant cultivars, albeit expressing the resistance gene, still exploit a pathogen response mechanism based on the local increase in the concentration of microelements, which are involved in the synthesis of secondary metabolites and reactive oxygen species. Moreover, these data also highlight the link between the mineral nutrition and plants’ response to pathogens, further stressing that appropriate fertilization strategies can be fundamental for the expression of response mechanisms against pathogens.
Stefano Cesco; Anna Tolotti; Stefano Nadalini; Stefano Rizzi; Fabio Valentinuzzi; Tanja Mimmo; Carlo Porfido; Ignazio Allegretta; Oscar Giovannini; Michele Perazzolli; Guido Cipriani; Roberto Terzano; Ilaria Pertot; Youry Pii. Plasmopara viticola infection affects mineral elements allocation and distribution in Vitis vinifera leaves. Scientific Reports 2020, 10, 1 -18.
AMA StyleStefano Cesco, Anna Tolotti, Stefano Nadalini, Stefano Rizzi, Fabio Valentinuzzi, Tanja Mimmo, Carlo Porfido, Ignazio Allegretta, Oscar Giovannini, Michele Perazzolli, Guido Cipriani, Roberto Terzano, Ilaria Pertot, Youry Pii. Plasmopara viticola infection affects mineral elements allocation and distribution in Vitis vinifera leaves. Scientific Reports. 2020; 10 (1):1-18.
Chicago/Turabian StyleStefano Cesco; Anna Tolotti; Stefano Nadalini; Stefano Rizzi; Fabio Valentinuzzi; Tanja Mimmo; Carlo Porfido; Ignazio Allegretta; Oscar Giovannini; Michele Perazzolli; Guido Cipriani; Roberto Terzano; Ilaria Pertot; Youry Pii. 2020. "Plasmopara viticola infection affects mineral elements allocation and distribution in Vitis vinifera leaves." Scientific Reports 10, no. 1: 1-18.
Due to the deliberate use of cupric fungicides in the last century for crop-defence programs, copper (Cu) has considerably accumulated in the soil. The concentrations of Cu often exceed the safety limits of risk assessment for Cu in soil and this may cause toxicity in plants. Copper toxicity induces nutritional imbalances in plants and constraints to plants growth. These aspects might be of paramount importance in the case of phosphorus (P), which is an essential plant macronutrient. In this work, hydroponically grown cucumber plants were used to investigate the influence of the exposure to different Cu concentrations (0.2, 5, 25 and 50 μM) on i) the phenotypic traits of plants, particularly at root level, ii) the nutrient content in both roots and shoots, and iii) the P uptake mechanisms, considering both the biochemical and molecular aspects. At high Cu concentrations (i.e. above 25 μM), the shoot and root growth resulted stunted and the P influx rate diminished. Furthermore, two P transporter genes (i.e. CsPT1.4 and CsPT1.9) were upregulated at the highest Cu concentration, albeit with different induction kinetics. Overall, these results confirm that high Cu concentrations can limit the root acquisition of P, most likely via a direct action on the uptake mechanisms (e.g. transporters). However, the alteration of root plasma membrane permeability induced by Cu toxicity might also play a pivotal role in the observed phenomenon.
Sebastian B. Feil; Youry Pii; Fabio Valentinuzzi; Raphael Tiziani; Tanja Mimmo; Stefano Cesco. Copper toxicity affects phosphorus uptake mechanisms at molecular and physiological levels in Cucumis sativus plants. Plant Physiology and Biochemistry 2020, 157, 138 -147.
AMA StyleSebastian B. Feil, Youry Pii, Fabio Valentinuzzi, Raphael Tiziani, Tanja Mimmo, Stefano Cesco. Copper toxicity affects phosphorus uptake mechanisms at molecular and physiological levels in Cucumis sativus plants. Plant Physiology and Biochemistry. 2020; 157 ():138-147.
Chicago/Turabian StyleSebastian B. Feil; Youry Pii; Fabio Valentinuzzi; Raphael Tiziani; Tanja Mimmo; Stefano Cesco. 2020. "Copper toxicity affects phosphorus uptake mechanisms at molecular and physiological levels in Cucumis sativus plants." Plant Physiology and Biochemistry 157, no. : 138-147.
Iron (Fe) bioavailability in soils is often limited and can be further exacerbated by a non- homogeneous distribution in the soil profile, which has been demonstrated to vary both in space and time. Consequently, plants respond with morphological and physiological modifications at the root level involving a complex local and systemic signaling machinery. The present work unravels the role of two phytohormones (i.e., ethylene and auxin) and their integrated signaling in plant response to Fe deficiency. Inhibitors of auxin polar transport and of ethylene biosynthesis (N-1-naphthylphthalamic acid - NPA and aminoethoxyvinylglycine - AVG, respectively) were applied on tomato (Solanum lycopersicum L.) plants grown by the split-root technique, which allows to simulate condition of Fe heterogeneous distribution. Results showed that plants, exposed to an uneven Fe supply, triggered a complex auxin-ethylene signaling. A systemic action of auxin on FERRIC REDUCTASE OXIDASE 1 (SlFRO1) expression was revealed, while ethylene signaling was effective both locally and systemically. In addition, the investigation of Fe concentration in tissues showed that when leaves overcame Fe deficiency a Fe “steady state” was maintained. Therefore, physiological adaptation to this heterogeneous Fe supply could be mediated by the integration of the complex signaling pathways prompted by both auxin and ethylene activities.
Silvia Celletti; Youry Pii; Fabio Valentinuzzi; Raphael Tiziani; Maria Chiara Fontanella; Gian Maria Beone; Tanja Mimmo; Stefano Cesco; Stefania Astolfi. Physiological Responses to Fe Deficiency in Split-Root Tomato Plants: Possible Roles of Auxin and Ethylene? Agronomy 2020, 10, 1000 .
AMA StyleSilvia Celletti, Youry Pii, Fabio Valentinuzzi, Raphael Tiziani, Maria Chiara Fontanella, Gian Maria Beone, Tanja Mimmo, Stefano Cesco, Stefania Astolfi. Physiological Responses to Fe Deficiency in Split-Root Tomato Plants: Possible Roles of Auxin and Ethylene? Agronomy. 2020; 10 (7):1000.
Chicago/Turabian StyleSilvia Celletti; Youry Pii; Fabio Valentinuzzi; Raphael Tiziani; Maria Chiara Fontanella; Gian Maria Beone; Tanja Mimmo; Stefano Cesco; Stefania Astolfi. 2020. "Physiological Responses to Fe Deficiency in Split-Root Tomato Plants: Possible Roles of Auxin and Ethylene?" Agronomy 10, no. 7: 1000.
Fe chlorosis is considered as one of the major constraints on crop growth and yield worldwide, being particularly worse when associated with S shortage, due to the tight link between Fe and S. Plant adaptation to inadequate nutrient availabilities often relies on the release of root exudates that enhance nutrients, mobilization from soil colloids and favour their uptake by roots. This work aims at characterizing the exudomic profile of hydroponically grown tomato plants subjected to either single or combined Fe and S deficiency, as well as at shedding light on the regulation mechanisms underlying Fe and S acquisition processes by plants. Root exudates have been analysed by untargeted metabolomics, through liquid chromatography–mass spectrometry as well as gas chromatography–mass spectrometry following derivatization. More than 200 metabolites could be putatively annotated. Venn diagrams show that 23%, 10% and 21% of differential metabolites are distinctively modulated by single Fe deficiency, single S deficiency or combined Fe–S deficiency, respectively. Interestingly, for the first time, a mugineic acid derivative is detected in dicot plants root exudates. The results seem to support the hypothesis of the co-existence of the two Fe acquisition strategies in tomato plants.
Stefania Astolfi; Youry Pii; Tanja Mimmo; Luigi Lucini; Maria B. Miras-Moreno; Eleonora Coppa; Simona Violino; Silvia Celletti; Stefano Cesco. Single and Combined Fe and S Deficiency Differentially Modulate Root Exudate Composition in Tomato: A Double Strategy for Fe Acquisition? International Journal of Molecular Sciences 2020, 21, 4038 .
AMA StyleStefania Astolfi, Youry Pii, Tanja Mimmo, Luigi Lucini, Maria B. Miras-Moreno, Eleonora Coppa, Simona Violino, Silvia Celletti, Stefano Cesco. Single and Combined Fe and S Deficiency Differentially Modulate Root Exudate Composition in Tomato: A Double Strategy for Fe Acquisition? International Journal of Molecular Sciences. 2020; 21 (11):4038.
Chicago/Turabian StyleStefania Astolfi; Youry Pii; Tanja Mimmo; Luigi Lucini; Maria B. Miras-Moreno; Eleonora Coppa; Simona Violino; Silvia Celletti; Stefano Cesco. 2020. "Single and Combined Fe and S Deficiency Differentially Modulate Root Exudate Composition in Tomato: A Double Strategy for Fe Acquisition?" International Journal of Molecular Sciences 21, no. 11: 4038.
Spreading of manure on agricultural soils is a main source of ammonia emissions and/or nitrate leaching. It has been addressed by the European Union with the Directives 2001/81/EC and 91/676/EEC to protect the environment and the human health. The disposal of manure has therefore become an economic and environmental challenge for farmers. Thus, the conversion of manure via anaerobic digestion in a biogas plant could be a sustainable solution, having the byproducts (solid and liquid digestates) the potential to be used as fertilizers for crops. This work aimed at characterizing and assessing the effect of digestates obtained from a local biogas plant (Biogas Wipptal, Gmbh), either in the form of liquid fraction or as a solid pellet on: (i) the fertility of the soils during an incubation experiment; (ii) the plant growth and nutritional status of different species (maize and cucumber). Moreover, an extensive characterization of the pellet was performed via X-ray microanalytical techniques. The data obtained showed that both digestates exhibit a fertilizing potential for crops, depending on the plant species and the fertilizer dose: the liquid fraction increases the shoot fresh weight at low dose in cucumber, conversely, the solid pellet increases the shoot fresh weight at high dose in maize. The liquid digestate may have the advantage to release nutrients (i.e. nitrogen) more rapidly to plants, but its storage represents the main constraint (i.e. ammonia volatilization). Indeed, pelleting the digestates could improve the storability of the fertilizer besides enhancing plant nutrient availability (i.e. phosphate and potassium), plant biomass and soil biochemical quality (i.e. microbial biomass and activity). The physical structure and chemical composition of pellet digestates allow nutrients to be easily mobilized over time, representing a possible source of mineral nutrients also in long-term applications.
Fabio Valentinuzzi; Luciano Cavani; Carlo Porfido; Roberto Terzano; Youry Pii; Stefano Cesco; Claudio Marzadori; Tanja Mimmo. The fertilising potential of manure-based biogas fermentation residues: pelleted vs. liquid digestate. Heliyon 2020, 6, e03325 .
AMA StyleFabio Valentinuzzi, Luciano Cavani, Carlo Porfido, Roberto Terzano, Youry Pii, Stefano Cesco, Claudio Marzadori, Tanja Mimmo. The fertilising potential of manure-based biogas fermentation residues: pelleted vs. liquid digestate. Heliyon. 2020; 6 (2):e03325.
Chicago/Turabian StyleFabio Valentinuzzi; Luciano Cavani; Carlo Porfido; Roberto Terzano; Youry Pii; Stefano Cesco; Claudio Marzadori; Tanja Mimmo. 2020. "The fertilising potential of manure-based biogas fermentation residues: pelleted vs. liquid digestate." Heliyon 6, no. 2: e03325.
Iron (Fe) is an essential micronutrient for plant life and development. However, in soil, Fe bioavailability is often limited and variable in space and time, thus different regions of the same root system might be exposed to different nutrient provisions. Few studies showed that the response to variable Fe provision is controlled at local and systemic levels, albeit the identity of the signals involved is still elusive. Iron itself was suggested as local mediator, whilst hormones were proposed for the long-distance signalling pathway. Therefore, the aim of this work was to assess whether Fe, when localized in a restricted area of the root system, might be involved in both local and systemic signaling. The combination of resupply experiments in a split-root system, the use of 57Fe isotope and chemical imaging techniques allowed tracing Fe movement within cucumber plants. Soon after the resupply, Fe is distributed to the whole plant, likely to overcome a minimum Fe concentration threshold aimed at repressing the deficiency response. Iron was then preferentially translocated to leaves and, only afterwards, the root system was completely resupplied. Collectively, these observations might thus highlight a root-to-shoot-to-root Fe translocation route in cucumber plants grown on a patchy nutrient substrate.
Fabio Valentinuzzi; Youry Pii; Porfido Carlo; Terzano Roberto; Maria Chiara Fontanella; Gian Maria Beone; Stefania Astolfi; Tanja Mimmo; Stefano Cesco. Root-shoot-root Fe translocation in cucumber plants grown in a heterogeneous Fe provision. Plant Science 2020, 293, 110431 .
AMA StyleFabio Valentinuzzi, Youry Pii, Porfido Carlo, Terzano Roberto, Maria Chiara Fontanella, Gian Maria Beone, Stefania Astolfi, Tanja Mimmo, Stefano Cesco. Root-shoot-root Fe translocation in cucumber plants grown in a heterogeneous Fe provision. Plant Science. 2020; 293 ():110431.
Chicago/Turabian StyleFabio Valentinuzzi; Youry Pii; Porfido Carlo; Terzano Roberto; Maria Chiara Fontanella; Gian Maria Beone; Stefania Astolfi; Tanja Mimmo; Stefano Cesco. 2020. "Root-shoot-root Fe translocation in cucumber plants grown in a heterogeneous Fe provision." Plant Science 293, no. : 110431.
Ryegrass (Lolium perenne L.) is a plant species that can express mechanisms of tolerance to copper (Cu) toxicity. Therefore, the agronomical approach of intercropping system with ryegrass may represent a promising tool to limit the onset of Cu toxicity symptoms in the other intercropped plants species, particularly when an inadequate nutrient availability like iron (Fe) shortage is also concurrently present. This study aimed at assessing the mechanisms involved in the mitigation of Cu phytotoxicity and the stress effects on plant growth, root morphology and nutrition of ryegrass fertilized with two different Fe sources. To this purpose, seedlings of ryegrass were hydroponically grown for 14 days in controlled conditions with 4 different levels of Cu (0.2, 5.0, 25 and 50 μM) and with either 100 μM Fe-EDDHA or Fe-EDTA. Results show that high levels of Cu availability enhanced the root content of organic anions as well as the root exudation. Different Fe fertilizations at the condition of 50 μM Cu induced changes in root phenolic compounds, citrate and fumarate contents and the exudation pattern of phenolic compounds. Differences in plant growth were not observed between the two Fe sources, although Cu concentration in plant tissue fed with Fe-EDTA was lower in the condition of 50 μM Cu. The enhanced root exudation of Cu-complexing organic compounds (including phenolics) in ryegrass plants when exposed to excessive Cu availability could be at the basis of the ameliorated edaphic rhizosphere conditions (lower Cu availability). For this reason, from the agronomical point of view ryegrass plants used in intercropping systems with crops like vine plants could represent a promising strategy to control Cu toxicity in vineyard soils. Further studies under the field conditions must be taken to support present findings.
Lessandro De Conti; Stefano Cesco; Tanja Mimmo; Youry Pii; Fabio Valentinuzzi; George W. B Melo; Carlos A. Ceretta; Edicarla Trentin; Anderson C.R. Marques; Gustavo Brunetto. Iron fertilization to enhance tolerance mechanisms to copper toxicity of ryegrass plants used as cover crop in vineyards. Chemosphere 2019, 243, 125298 .
AMA StyleLessandro De Conti, Stefano Cesco, Tanja Mimmo, Youry Pii, Fabio Valentinuzzi, George W. B Melo, Carlos A. Ceretta, Edicarla Trentin, Anderson C.R. Marques, Gustavo Brunetto. Iron fertilization to enhance tolerance mechanisms to copper toxicity of ryegrass plants used as cover crop in vineyards. Chemosphere. 2019; 243 ():125298.
Chicago/Turabian StyleLessandro De Conti; Stefano Cesco; Tanja Mimmo; Youry Pii; Fabio Valentinuzzi; George W. B Melo; Carlos A. Ceretta; Edicarla Trentin; Anderson C.R. Marques; Gustavo Brunetto. 2019. "Iron fertilization to enhance tolerance mechanisms to copper toxicity of ryegrass plants used as cover crop in vineyards." Chemosphere 243, no. : 125298.
The high copper (Cu) concentration in vineyard soils causes the increase of Cu toxicity symptoms in young grapevines. Recently, intercropping of grapevine and oat was shown to reduce Cu toxicity effects, modulating the root ionome. On these bases, the focus of the work was to investigate the impact of Cu toxicity of either monocropped or oat-intercropped grapevine rootstocks plants (196.17 and Fercal), at both phenotypic (i.e., root architecture), and molecular (i.e., expression of transporters) levels. The results showed a different response in terms of root morphology that are both rootstock- and cropping system dependent. Moreover, the expression pattern of transporter genes (i.e., VvCTr, VvNRAMP, and VvIRT1) in monocropped grapevine might resemble a Mn deficiency response induced by the excess of Cu, especially in Fercal plants. The gene expression in intercropped grapevines suggested rootstock-specific response mechanisms, depending on Cu levels. In fact, at low Cu concentrations, Fercal enhanced both root system growth and transporter genes expression; contrarily, 196.17 increased apoplast divalent cations accumulation and transporters expression. At high Cu concentrations, Fercal increased the expression of all bivalent cation transporters and, as previously observed, enhanced the release of root exudates, whereas the 196.17 only modulated transporters. In conclusion, our results might suggest that the different adaptation strategies of the two rootstocks to Cu toxicity could be mainly ascribable to a fine-tuning of bivalent cations transporters expression at root level.
Laura Marastoni; Michele Sandri; Youry Pii; Fabio Valentinuzzi; Stefano Cesco; Tanja Mimmo. Morphological Root Responses and Molecular Regulation of Cation Transporters Are Differently Affected by Copper Toxicity and Cropping System Depending on the Grapevine Rootstock Genotype. Frontiers in Plant Science 2019, 10, 946 .
AMA StyleLaura Marastoni, Michele Sandri, Youry Pii, Fabio Valentinuzzi, Stefano Cesco, Tanja Mimmo. Morphological Root Responses and Molecular Regulation of Cation Transporters Are Differently Affected by Copper Toxicity and Cropping System Depending on the Grapevine Rootstock Genotype. Frontiers in Plant Science. 2019; 10 ():946.
Chicago/Turabian StyleLaura Marastoni; Michele Sandri; Youry Pii; Fabio Valentinuzzi; Stefano Cesco; Tanja Mimmo. 2019. "Morphological Root Responses and Molecular Regulation of Cation Transporters Are Differently Affected by Copper Toxicity and Cropping System Depending on the Grapevine Rootstock Genotype." Frontiers in Plant Science 10, no. : 946.
Azospirillum brasilense was reported to up-regulate iron (Fe) uptake mechanisms, such as Fe reduction and rhizosphere acidification, in both Fe sufficient and deficient cucumber plants (Cucumis sativus L.). Strategy I plants take up both Fe and copper (Cu) after their reduction mediated by the ferric-chelate reductase oxidase (FRO) enzyme. Interestingly, in cucumber genome only one FRO gene is reported. Thus, in the present study we applied a bioinformatics approach to identify the member of cucumber FRO gene family and allowed the identification of at least three CsFRO genes, one of which was the already identified, i.e. CsFRO1. The expression patterns of the newly identified transcripts were investigated in hydroponically grown cucumber plants treated with different Fe and Cu nutritional regimes. Gene expression was then correlated with morphological (i.e. root architecture) and physiological (Fe(III) reducing activity) parameters to shed light on: i) the CsFRO homologue responsible of the increased reduction activity in Fe-sufficient plants inoculated with A. brasilense cucumber plants, and ii) the possible effect of A. brasilense in ameliorating the symptoms of Cu toxicity in cucumber plants. The data obtained showed that all the CsFRO genes were expressed in the root tissues of cucumber plants and responded to Cu starvation, combined Cu/Fe deficiency and Cu toxicity. Only CsFRO3 was modulated by the A. brasilense in Fe-sufficient plants suggesting for the first time a different specificity of action of the three isoenzymes depending not only on the nutritional regime (either deficiency or toxicity) but also on the presence of the PGPR. Furthermore, results suggest that the PGPR could even ameliorate the stress symptoms caused by both the double (i.e. Cu and Fe) and Cu deficiency as well as Cu toxicity modulating, on one hand, the growth of the root system and, on the other hand, the root nutrient uptake.
Laura Marastoni; Youry Pii; Mauro Maver; Fabio Valentinuzzi; Stefano Cesco; Tanja Mimmo. Role of Azospirillum brasilense in triggering different Fe chelate reductase enzymes in cucumber plants subjected to both nutrient deficiency and toxicity. Plant Physiology and Biochemistry 2019, 136, 118 -126.
AMA StyleLaura Marastoni, Youry Pii, Mauro Maver, Fabio Valentinuzzi, Stefano Cesco, Tanja Mimmo. Role of Azospirillum brasilense in triggering different Fe chelate reductase enzymes in cucumber plants subjected to both nutrient deficiency and toxicity. Plant Physiology and Biochemistry. 2019; 136 ():118-126.
Chicago/Turabian StyleLaura Marastoni; Youry Pii; Mauro Maver; Fabio Valentinuzzi; Stefano Cesco; Tanja Mimmo. 2019. "Role of Azospirillum brasilense in triggering different Fe chelate reductase enzymes in cucumber plants subjected to both nutrient deficiency and toxicity." Plant Physiology and Biochemistry 136, no. : 118-126.
The increasing industrialization has led to a high accumulation of xenobiotic contaminants in the natural environments. Most frequently, such pollutants include petroleum hydrocarbons (PHCs), polycyclic aromatic hydrocarbons (PAHs), halogenated hydrocarbons, agrochemicals, solvents, heavy metals and salts; among all of them, PAHs are particularly hazardous for their toxicity, mutagenic and carcinogenic potential, since they also feature a very high potential of accumulation in several food chains. Although several remediation techniques based on physical and chemical processes have been developed, the biological approach seems to be the most promising, since it very often allows the complete removal of the xenobiotics from the environment. In this work, the cultivable microbial community has been isolated from PAHs polluted soils and each individual strain has been tested for its ability to grow on both naphthalene and phenanthrene. Out of forty-seven isolates, two bacterial strains able of growing on the xenobiotics were found (T1 and W1) and the 16S rDNA was sequenced. The potential ability of both T1 and W1 to alleviate phytotoxicity symptoms was assessed by running an ecotoxicity test, using Lepidium sativum as indicator plant. Interestingly, both T1 and W1 alleviated the naphthalene-induced phytotoxicity in cress plants, whilst their contributions were not effective when plants were exposed to the highest concentrations of phenanthrene. In conclusion, our data highlighted that both the plants sensitivity to PAHs and the microbial ability to degrade xenobiotics are strongly dependent on either plant or bacterial species and on the xenobiotic molecule. In addition, considering the plant growth promotion traits displayed by T1 and W1, the isolated bacterial strains might represent a promising tool to possibly enhance the plant fitness, even in xenobiotic contaminated soils.
Youry Pii; Laura Marastoni; Elisa Gemassmer; Fabio Valentinuzzi; Fabrizio Mazzetto; Tanja Mimmo; Stefano Cesco. Phytotoxicity alleviation by bacterial species isolated from polycyclic aromatic hydrocarbons (PAHs) contaminated sites. Environmental Technology & Innovation 2018, 13, 104 -112.
AMA StyleYoury Pii, Laura Marastoni, Elisa Gemassmer, Fabio Valentinuzzi, Fabrizio Mazzetto, Tanja Mimmo, Stefano Cesco. Phytotoxicity alleviation by bacterial species isolated from polycyclic aromatic hydrocarbons (PAHs) contaminated sites. Environmental Technology & Innovation. 2018; 13 ():104-112.
Chicago/Turabian StyleYoury Pii; Laura Marastoni; Elisa Gemassmer; Fabio Valentinuzzi; Fabrizio Mazzetto; Tanja Mimmo; Stefano Cesco. 2018. "Phytotoxicity alleviation by bacterial species isolated from polycyclic aromatic hydrocarbons (PAHs) contaminated sites." Environmental Technology & Innovation 13, no. : 104-112.