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https://physiologiaplantarum.org/2021/02/19/winners-of-the-reviewer-reward-2020/
Physiologia Plantarum
Department of Science & Technology (DST), Govt. of India
Nickel (Ni) is a potentially toxic element that contaminates soil and water, threatens food and water security, and hinders sustainable development globally. Biochar has emerged as a promising novel material for remediating Ni-contaminated environments. However, the potential for pristine and functionalized biochars to immobilize/adsorb Ni in soil and water, and the mechanisms involved have not been systematically reviewed. Here, we critically review the different dimensions of Ni contamination and remediation in soil and water, including its occurrence and biogeochemical behavior under different environmental conditions and ecotoxicological hazards, and its remediation using biochar. Biochar is effective in immobilizing Ni in soil and water via ion exchange, electrostatic attraction, surface complexation, (co)precipitation, physical adsorption, and reduction due to the biogeochemistry of Ni and the interaction of Ni with surface functional groups and organic/inorganic compounds contained in biochar. The efficiency for Ni removal is consistently greater with functionalized than pristine biochars. Physical (e.g., ball milling) and chemical (e.g., alkali/acidic treatment) activation achieve higher surface area, porosity, and active surface groups on biochar that enhance Ni immobilization. This review highlights possible risks and challenges of biochar application in Ni remediation, suggests future research directions, and discusses implications for environmental agencies and decision-makers.
Ali El-Naggar; Naveed Ahmed; Ahmed Mosa; Nabeel Khan Niazi; Balal Yousaf; Anket Sharma; Binoy Sarkar; Yanjiang Cai; Scott X. Chang. Nickel in soil and water: Sources, biogeochemistry, and remediation using biochar. Journal of Hazardous Materials 2021, 419, 126421 .
AMA StyleAli El-Naggar, Naveed Ahmed, Ahmed Mosa, Nabeel Khan Niazi, Balal Yousaf, Anket Sharma, Binoy Sarkar, Yanjiang Cai, Scott X. Chang. Nickel in soil and water: Sources, biogeochemistry, and remediation using biochar. Journal of Hazardous Materials. 2021; 419 ():126421.
Chicago/Turabian StyleAli El-Naggar; Naveed Ahmed; Ahmed Mosa; Nabeel Khan Niazi; Balal Yousaf; Anket Sharma; Binoy Sarkar; Yanjiang Cai; Scott X. Chang. 2021. "Nickel in soil and water: Sources, biogeochemistry, and remediation using biochar." Journal of Hazardous Materials 419, no. : 126421.
Pervasive use of chlorpyrifos (CP), an organophosphorus pesticide, has been proven to be fatal for plant growth, especially at higher concentrations. CP poisoning leads to growth inhibition, chlorosis, browning of roots and lipid and protein degradation, along with membrane dysfunction and nuclear damage. Plants form a linking bridge between the underground and above-ground communities to escape from the unfavourable conditions. Association with beneficial rhizobacteria promotes the growth and development of the plants. Plant hormones are crucial regulators of basically every aspect of plant development. The growing significance of plant hormones in mediating plant–microbe interactions in stress recovery in plants has been extensively highlighted. Hence, the goal of the current study was to investigate the effect of 24-epibrassinolide (EBL) and PGPRs (Pseudomonas aeruginosa (Ma), Burkholderia gladioli (Mb)) on growth and the antioxidative defence system of CP-stressed Brassica juncea L. seedlings. CP toxicity reduced the germination potential, hypocotyl and radicle development and vigour index, which was maximally recuperated after priming with EBL and Mb. CP-exposed seedlings showed higher levels of superoxide anion (O2−), hydrogen peroxide (H2O2), lipid peroxidation and electrolyte leakage (EL) and a lower level of nitric oxide (NO). In-vivo visualisation of CP-stressed seedlings using a light and fluorescent microscope also revealed the increase in O2−, H2O2 and lipid peroxidation, and decreased NO levels. The combination of EBL and PGPRs reduced the reactive oxygen species (ROS) and malondialdehyde (MDA) contents and improved the NO level. In CP-stressed seedlings, increased gene expression of defence enzymes such as superoxide dismutase (SOD), ascorbate peroxidase (APOX), glutathione peroxidase (GPOX), dehydroascorbate reductase (DHAR) and glutathione reductase (GPOX) was seen, with the exception of catalase (CAT) on supplementation with EBL and PGPRs. The activity of nitrate reductase (NR) was likewise shown to increase after treatment with EBL and PGPRs. The results obtained from the present study substantiate sufficient evidence regarding the positive association of EBL and PGPRs in amelioration of CP-induced oxidative stress in Brassica juncea seedlings by strengthening the antioxidative defence machinery.
Palak Bakshi; Rekha Chouhan; Pooja Sharma; Bilal Mir; Sumit Gandhi; Marco Landi; Bingsong Zheng; Anket Sharma; Renu Bhardwaj. Amelioration of Chlorpyrifos-Induced Toxicity in Brassica juncea L. by Combination of 24-Epibrassinolide and Plant-Growth-Promoting Rhizobacteria. Biomolecules 2021, 11, 877 .
AMA StylePalak Bakshi, Rekha Chouhan, Pooja Sharma, Bilal Mir, Sumit Gandhi, Marco Landi, Bingsong Zheng, Anket Sharma, Renu Bhardwaj. Amelioration of Chlorpyrifos-Induced Toxicity in Brassica juncea L. by Combination of 24-Epibrassinolide and Plant-Growth-Promoting Rhizobacteria. Biomolecules. 2021; 11 (6):877.
Chicago/Turabian StylePalak Bakshi; Rekha Chouhan; Pooja Sharma; Bilal Mir; Sumit Gandhi; Marco Landi; Bingsong Zheng; Anket Sharma; Renu Bhardwaj. 2021. "Amelioration of Chlorpyrifos-Induced Toxicity in Brassica juncea L. by Combination of 24-Epibrassinolide and Plant-Growth-Promoting Rhizobacteria." Biomolecules 11, no. 6: 877.
Several measures of ecological diversity have been defined at alpha, beta, and gamma levels and less attention has been paid to characterise their ecological dominance. In this paper, we extend the concept of negative entropy (negentropy) for the measurement of ecological dominance and diversity at the three hierarchical levels of community characterization. Negentropy is a measure of energy, and gives a convex curve for binary negentropy function, whereas Shannon’s entropy gives a typical concave curve. Similarly, we have defined indices for Simpson’s and Brillouin’s dominance functions at alpha, beta and gamma levels. The results of diversity indices followed a trend for different sites as: Harike > Beas > Goindwal Sahib, while trend obtained for dominance is Goindwal Sahib > Beas > Harike. The pooled results of both indicated that Harike showed maximum ecological information by the application of Shannon’s diversity and Simpson’s inverse diversity, while results of Simpson’s diversity remain same for all sites.
Vinod Kumar; Ashwani Kumar Thukral; Anket Sharma; Renu Bhardwaj. Extending the concept of entropy-negentropy for the assessment of ecological dominance and diversity at alpha, beta and gamma levels. Geology, Ecology, and Landscapes 2021, 1 -13.
AMA StyleVinod Kumar, Ashwani Kumar Thukral, Anket Sharma, Renu Bhardwaj. Extending the concept of entropy-negentropy for the assessment of ecological dominance and diversity at alpha, beta and gamma levels. Geology, Ecology, and Landscapes. 2021; ():1-13.
Chicago/Turabian StyleVinod Kumar; Ashwani Kumar Thukral; Anket Sharma; Renu Bhardwaj. 2021. "Extending the concept of entropy-negentropy for the assessment of ecological dominance and diversity at alpha, beta and gamma levels." Geology, Ecology, and Landscapes , no. : 1-13.
Guar is an economically important legume crop that is used for gum production. The clean and sustainable production of guar, especially in newly reclaimed lands, requires biofertilizers that can reduce the use of mineral fertilizers, which have harmful effects on human health and the environment. The present study was conducted to investigate the effects of biofertilizers produced from Bradyrhizobium sp., Bacillus subtilis, and arbuscular mycorrhizal fungi (AMF), individually or in combinations, on microbial activity, and nutrients of the soils and the guar growth and seed quality and yield. The application of biofertilizers improved shoot length, root length, number of branches, plant dry weight, leaf area index (LAI), chlorophyll content, and nutrient uptake of guar plants compared with the control plants. Moreover, the application with biofertilizers resulted in an obvious increase in seed yield and has improved the total proteins, carbohydrates, fats, starch, and guaran contents in the seeds. Additionally, biofertilizer treatments have improved the soil microbial activity by increasing dehydrogenase, phosphatase, protease, and invertase enzymes. Soil inoculation with the optimized doses of biofertilizers saved about 25% of the chemical fertilizers required for the entire guar growth stages. Our results could serve as a practical strategy for further research into integrated plant-microbe interaction in agriculture.
Ahmed El-Sawah; Ali El-Keblawy; Dina Ali; Heba Ibrahim; Mohamed El-Sheikh; Anket Sharma; Yousef Alhaj Hamoud; Hiba Shaghaleh; Marian Brestic; Milan Skalicky; You-Cai Xiong; Mohamed Sheteiwy. Arbuscular Mycorrhizal Fungi and Plant Growth-Promoting Rhizobacteria Enhance Soil Key Enzymes, Plant Growth, Seed Yield, and Qualitative Attributes of Guar. Agriculture 2021, 11, 194 .
AMA StyleAhmed El-Sawah, Ali El-Keblawy, Dina Ali, Heba Ibrahim, Mohamed El-Sheikh, Anket Sharma, Yousef Alhaj Hamoud, Hiba Shaghaleh, Marian Brestic, Milan Skalicky, You-Cai Xiong, Mohamed Sheteiwy. Arbuscular Mycorrhizal Fungi and Plant Growth-Promoting Rhizobacteria Enhance Soil Key Enzymes, Plant Growth, Seed Yield, and Qualitative Attributes of Guar. Agriculture. 2021; 11 (3):194.
Chicago/Turabian StyleAhmed El-Sawah; Ali El-Keblawy; Dina Ali; Heba Ibrahim; Mohamed El-Sheikh; Anket Sharma; Yousef Alhaj Hamoud; Hiba Shaghaleh; Marian Brestic; Milan Skalicky; You-Cai Xiong; Mohamed Sheteiwy. 2021. "Arbuscular Mycorrhizal Fungi and Plant Growth-Promoting Rhizobacteria Enhance Soil Key Enzymes, Plant Growth, Seed Yield, and Qualitative Attributes of Guar." Agriculture 11, no. 3: 194.
Dhriti Kapoor; Kapani Kavani; Amandeep Rattan; Marco Landi; Anket Sharma. Ameliorative Role of Pre-Sowing Proline Treatment in Coriandrum sativum L. Seedlings under Mercury Toxicity. Phyton 2021, 90, 489 -501.
AMA StyleDhriti Kapoor, Kapani Kavani, Amandeep Rattan, Marco Landi, Anket Sharma. Ameliorative Role of Pre-Sowing Proline Treatment in Coriandrum sativum L. Seedlings under Mercury Toxicity. Phyton. 2021; 90 (2):489-501.
Chicago/Turabian StyleDhriti Kapoor; Kapani Kavani; Amandeep Rattan; Marco Landi; Anket Sharma. 2021. "Ameliorative Role of Pre-Sowing Proline Treatment in Coriandrum sativum L. Seedlings under Mercury Toxicity." Phyton 90, no. 2: 489-501.
Heavy metal pollution seriously impairs crop production and poses serious concerns for human health. Exogenous application of biomolecules has been efficiently tested for enhancing plant resistance to metal toxicity. Current study evaluates the possible effect of 5-aminolevulinic acid (ALA) in Brassica juncea L. seedlings subjected to lead (Pb) stress. Our results showed that shoot length, root length and chlorophyll contents were significantly recovered in Pb stressed seedlings after ALA application, accompanied by reduction in the Pb accumulation. Significant reduction in the contents of reactive oxygen species (ROS) like superoxide anion, hydrogen peroxide and malondialdehyde were also observed in ALA treated seedlings under Pb stress. Furthermore, we also noticed enhancement in the activities of antioxidative enzymes like superoxide dismutase (SOD), catalase (CAT), guaiacol peroxidase (POD), glutathione reductase (GR), glutathione-S-transferase (GST) and dehydroascorbate reductase (DHAR). We further noticed that ALA upregulated the expression of SOD (7.30 folds), POD (6.11 folds), CAT (3.52 folds), DHAR (6.42 folds), GR (6.04 folds), and GST (5.58 folds) under the Pb stress. However, RBOH1 (gene involved in ROS generation) and CHLASE (chlorophyllase) expressions were reduced in ALA treated seedlings grown under Pb stress (RBOH1 expression decreased to 3.44 from 6.50 fold and CHLASE expression decreased to 2.97 from 5.58 fold). Phenolic contents were increased in the presence of ALA and expression of genes like CHS (chalcone synthase; 7.50 fold) and PAL (phenylalanine ammonia lyase; 4.77 fold) was also stimulated by ALA under Pb stress. Furthermore, contents of the Krebs cycle metabolites (fumarate, succinate, malate and citrate) were also enhanced accompanied by upregulated expression of genes like CS (citrate Synthase; 8.13 fold), SUCLG1 (succinyl CoA ligase 1; 7.40 fold), SDH (succinate dehydrogenase; 5.10 fold) and FH (fumarate hydratase; 5.65 fold). In conclusion, current investigation revealed that ALA attenuated Pb toxicity by modulating the transcription patterns of key enzymes involved in plant defense system.
Ravinder Singh; Anup Kumar Kesavan; Marco Landi; Satwinderjeet Kaur; Sharad Thakur; Bingsong Zheng; Renu Bhardwaj; Anket Sharma. 5-aminolevulinic acid regulates Krebs cycle, antioxidative system and gene expression in Brassica juncea L. to confer tolerance against lead toxicity. Journal of Biotechnology 2020, 323, 283 -292.
AMA StyleRavinder Singh, Anup Kumar Kesavan, Marco Landi, Satwinderjeet Kaur, Sharad Thakur, Bingsong Zheng, Renu Bhardwaj, Anket Sharma. 5-aminolevulinic acid regulates Krebs cycle, antioxidative system and gene expression in Brassica juncea L. to confer tolerance against lead toxicity. Journal of Biotechnology. 2020; 323 ():283-292.
Chicago/Turabian StyleRavinder Singh; Anup Kumar Kesavan; Marco Landi; Satwinderjeet Kaur; Sharad Thakur; Bingsong Zheng; Renu Bhardwaj; Anket Sharma. 2020. "5-aminolevulinic acid regulates Krebs cycle, antioxidative system and gene expression in Brassica juncea L. to confer tolerance against lead toxicity." Journal of Biotechnology 323, no. : 283-292.
Plants are often exposed to unfavorable environmental conditions, for instance abiotic stresses, which dramatically alter distribution of plant species among ecological niches and limit the yields of crop species. Among these, drought stress is one of the most impacting factors which alter seriously the plant physiology, finally leading to the decline of the crop productivity. Drought stress causes in plants a set of morpho-anatomical, physiological and biochemical changes, mainly addressed to limit the loss of water by transpiration with the attempt to increase the plant water use efficiency. The stomata closure, one of the first consistent reactions observed under drought, results in a series of consequent physiological/biochemical adjustments aimed at balancing the photosynthetic process as well as at enhancing the plant defense barriers against drought-promoted stress (e.g., stimulation of antioxidant systems, accumulation of osmolytes and stimulation of aquaporin synthesis), all representing an attempt by the plant to overcome the unfavorable period of limited water availability. In view of the severe changes in water availability imposed by climate change factors and considering the increasing human population, it is therefore of outmost importance to highlight: (i) how plants react to drought; (ii) the mechanisms of tolerance exhibited by some species/cultivars; and (iii) the techniques aimed at increasing the tolerance of crop species against limited water availability. All these aspects are necessary to respond to the continuously increasing demand for food, which unfortunately parallels the loss of arable land due to changes in rainfall dynamics and prolonged period of drought provoked by climate change factors. This review summarizes the most updated findings on the impact of drought stress on plant morphological, biochemical and physiological features and highlights plant mechanisms of tolerance which could be exploited to increase the plant capability to survive under limited water availability. In addition, possible applicative strategies to help the plant in counteracting unfavorable drought periods are also discussed.
Dhriti Kapoor; Savita Bhardwaj; Marco Landi; Arti Sharma; Muthusamy Ramakrishnan; Anket Sharma. The Impact of Drought in Plant Metabolism: How to Exploit Tolerance Mechanisms to Increase Crop Production. Applied Sciences 2020, 10, 5692 .
AMA StyleDhriti Kapoor, Savita Bhardwaj, Marco Landi, Arti Sharma, Muthusamy Ramakrishnan, Anket Sharma. The Impact of Drought in Plant Metabolism: How to Exploit Tolerance Mechanisms to Increase Crop Production. Applied Sciences. 2020; 10 (16):5692.
Chicago/Turabian StyleDhriti Kapoor; Savita Bhardwaj; Marco Landi; Arti Sharma; Muthusamy Ramakrishnan; Anket Sharma. 2020. "The Impact of Drought in Plant Metabolism: How to Exploit Tolerance Mechanisms to Increase Crop Production." Applied Sciences 10, no. 16: 5692.
For years, ethylene has been known to humankind as the plant hormone responsible for fruit ripening. However, the multitasking aspect of ethylene is still being investigated as ever. It is one of the most diversified signaling molecules which acclimatize plant under adverse conditions. It promotes adventitious root formation, stem and petiole elongation, opening and closing of stomatal aperture, reduces salinity and metal stress, etc. Presence of ethylene checks the production and scavenging of reactive oxygen species by strengthening the antioxidant machinery. Meanwhile, it interacts with other signaling molecules and initiates a cascade of adaptive responses. In the present mini review, the biosynthesis and sources of ethylene production, interaction with other signaling molecules, and its exogenous application under different abiotic stresses have been discussed.
Tajammul Husain; Abreeq Fatima; Mohammad Suhel; Samiksha Singh; Anket Sharma; Sheo Mohan Prasad; Vijay Pratap Singh. A brief appraisal of ethylene signaling under abiotic stress in plants. Plant Signaling & Behavior 2020, 15, 1 .
AMA StyleTajammul Husain, Abreeq Fatima, Mohammad Suhel, Samiksha Singh, Anket Sharma, Sheo Mohan Prasad, Vijay Pratap Singh. A brief appraisal of ethylene signaling under abiotic stress in plants. Plant Signaling & Behavior. 2020; 15 (9):1.
Chicago/Turabian StyleTajammul Husain; Abreeq Fatima; Mohammad Suhel; Samiksha Singh; Anket Sharma; Sheo Mohan Prasad; Vijay Pratap Singh. 2020. "A brief appraisal of ethylene signaling under abiotic stress in plants." Plant Signaling & Behavior 15, no. 9: 1.
The plant-Trichoderma-pathogen triangle is a complicated web of numerous processes. Trichoderma spp. are avirulent opportunistic plant symbionts. In addition to being successful plant symbiotic organisms, Trichoderma spp. also behave as a low cost, effective and ecofriendly biocontrol agent. They can set themselves up in various patho-systems, have minimal impact on the soil equilibrium and do not impair useful organisms that contribute to the control of pathogens. This symbiotic association in plants leads to the acquisition of plant resistance to pathogens, improves developmental processes and yields and promotes absorption of nutrient and fertilizer use efficiency. Among other biocontrol mechanisms, antibiosis, competition and mycoparasitism are among the main features through which microorganisms, including Thrichoderma, react to the presence of other competitive pathogenic organisms, thereby preventing or obstructing their development. Stimulation of every process involves the biosynthesis of targeted metabolites like plant growth regulators, enzymes, siderophores, antibiotics, etc. This review summarizes the biological control activity exerted by Trichoderma spp. and sheds light on the recent progress in pinpointing the ecological significance of Trichoderma at the biochemical and molecular level in the rhizosphere as well as the benefits of symbiosis to the plant host in terms of physiological and biochemical mechanisms. From an applicative point of view, the evidence provided herein strongly supports the possibility to use Trichoderma as a safe, ecofriendly and effective biocontrol agent for different crop species.
Monika Sood; Dhriti Kapoor; Vipul Kumar; Mohamed S. Sheteiwy; Muthusamy Ramakrishnan; Marco Landi; Fabrizio Araniti; Anket Sharma. Trichoderma: The “Secrets” of a Multitalented Biocontrol Agent. Plants 2020, 9, 762 .
AMA StyleMonika Sood, Dhriti Kapoor, Vipul Kumar, Mohamed S. Sheteiwy, Muthusamy Ramakrishnan, Marco Landi, Fabrizio Araniti, Anket Sharma. Trichoderma: The “Secrets” of a Multitalented Biocontrol Agent. Plants. 2020; 9 (6):762.
Chicago/Turabian StyleMonika Sood; Dhriti Kapoor; Vipul Kumar; Mohamed S. Sheteiwy; Muthusamy Ramakrishnan; Marco Landi; Fabrizio Araniti; Anket Sharma. 2020. "Trichoderma: The “Secrets” of a Multitalented Biocontrol Agent." Plants 9, no. 6: 762.
Steroids are a pivotal class of hormones with a key role in growth modulation and signal transduction in multicellular organisms. Synthetic steroids are widely used to cure large array of viral, fungal, bacterial, and cancerous infections. Brassinosteroids (BRs) are a natural collection of phytosterols, which have structural similarity with animal steroids. BRs are dispersed universally throughout the plant kingdom. These plant steroids are well known to modulate a plethora of physiological responses in plants leading to improvement in quality as well as yield of food crops. Moreover, they have been found to play imperative role in stress-fortification against various stresses in plants. Over a decade, BRs have conquered worldwide interest due to their diverse biological activities in animal systems. Recent studies have indicated anticancerous, antiangiogenic, antiviral, antigenotoxic, antifungal, and antibacterial bioactivities of BRs in the animal test systems. BRs inhibit replication of viruses and induce cytotoxic effects on cancerous cell lines. Keeping in view the biological activities of BRs, this review is an attempt to update the information about prospects of BRs in biomedical and clinical application.
Sukhmeen Kaur Kohli; Abhay Bhardwaj; Vinay Bhardwaj; Anket Sharma; Namarta Kalia; Marco Landi; Renu Bhardwaj. Therapeutic Potential of Brassinosteroids in Biomedical and Clinical Research. Biomolecules 2020, 10, 572 .
AMA StyleSukhmeen Kaur Kohli, Abhay Bhardwaj, Vinay Bhardwaj, Anket Sharma, Namarta Kalia, Marco Landi, Renu Bhardwaj. Therapeutic Potential of Brassinosteroids in Biomedical and Clinical Research. Biomolecules. 2020; 10 (4):572.
Chicago/Turabian StyleSukhmeen Kaur Kohli; Abhay Bhardwaj; Vinay Bhardwaj; Anket Sharma; Namarta Kalia; Marco Landi; Renu Bhardwaj. 2020. "Therapeutic Potential of Brassinosteroids in Biomedical and Clinical Research." Biomolecules 10, no. 4: 572.
The purpose of current investigation was to explore the role of brassinosteroids (BRs) in Zea mays L. var. DKC 9106 seedlings subjected to salt stress. The seedlings were raised under controlled laboratory conditions and subjected to different concentrations of NaCl (0, 40, 60, 80, 100 mM) for 10 days. The impact of pre-sowing treatment of both 28-homobrassionolide (HBL) and 24-epibrassinolide (EBL) on defense system of Z. mays L. under salt stress was studied by analyzing Na+ and K+ ions, malondialdehyde content (MDA), antioxidative enzymes activities (peroxidase, POD; catalase, CAT; dehydroascorbate reductase, DHAR; monodehydroascorbate reductase, MDHAR), osmoprotectants (proline, glycine betaine, mannitol, and total osmolytes content), total phenolic content, total flavonoid content, and 1,1-diphenylpicrylhydrazyl (DPPH) free radical scavenging activity. The results of our finding showed that treatment of both HBL and EBL under high salt stress balanced the ionic status by decreasing the Na+ ions content by 21.23% and 38.94%, respectively, and enhancing the K+ ions content by 51.94% and 26.66%, respectively. Treatment of both BRs also overcome the oxidative damage induced due to salinity stress by reducing the MDA accumulation 19.50% and 45.0%, respectively, and enhancing the activities of antioxidative enzymes. The osmoprotectants: proline (50.08% and 17.03%), glycine betaine (35.57% and 28.16%), and mannitol content (2.80% and 20.98%) were markedly increased by the treatment of both HBL and EBL, respectively. Further, treatment of both HBL and EBL also increased the total phenolic content by 11.68% and 5.80%, total flavonoid content by 31.56 and 31.09% and DPPH free radical scavenging activity by 37.99% and 77.41%, respectively. Overall the treatment of BRs before seed sowing considerably conquer the salinity-induced damage by stimulating functional components of antioxidative defense system and ultimately reduced oxidative damage.
Amandeep Rattan; Dhriti Kapoor; Nitika Kapoor; Renu Bhardwaj; Anket Sharma. Brassinosteroids Regulate Functional Components of Antioxidative Defense System in Salt Stressed Maize Seedlings. Journal of Plant Growth Regulation 2020, 39, 1465 -1475.
AMA StyleAmandeep Rattan, Dhriti Kapoor, Nitika Kapoor, Renu Bhardwaj, Anket Sharma. Brassinosteroids Regulate Functional Components of Antioxidative Defense System in Salt Stressed Maize Seedlings. Journal of Plant Growth Regulation. 2020; 39 (4):1465-1475.
Chicago/Turabian StyleAmandeep Rattan; Dhriti Kapoor; Nitika Kapoor; Renu Bhardwaj; Anket Sharma. 2020. "Brassinosteroids Regulate Functional Components of Antioxidative Defense System in Salt Stressed Maize Seedlings." Journal of Plant Growth Regulation 39, no. 4: 1465-1475.
Cassia fistula L. is a highly admirable traditional medicinal plant used for the treatment of various diseases and disorders. The present study was performed to divulge the antioxidant, antiproliferative, and apoptosis-inducing efficacy of fractions from C. fistula leaves. The hexane (CaLH fraction), chloroform (CaLC fraction), ethyl acetate (CaLE fraction), n-butanol (CaLB fraction), and aqueous (CaLA fraction) were sequentially fractionated from 80% methanolic (CaLM extract) of C. fistula leaves. The CaLE fraction was fractionated using column chromatography to yield a pure compound, which was characterized as Epiafzelechin (CFL1) based on 1H, 13C, and DEPT135 NMR. Among these fractions, CaLE and isolated CFL1 fractions exhibited an effective antioxidant potential in Ferric ion reducing power, (2,2’-azino-bis (3-ethylbenzothiazoline -6-sulfonic acid)) cation radical scavenging, and nitric oxide radical scavenging assays. Epiafzelechin was investigated for its antiproliferative effects against MG-63 (osteosarcoma), IMR-32 (neuroblastoma), and PC-3 (prostate adenocarcinoma), and was found to inhibit cell proliferation with a GI50 value of 8.73, 9.15, and 11.8 μM respectively. MG-63 cells underwent apoptotic cell death on treatment with Epiafzelechin as the cells showed the formation of apoptotic bodies, enhanced reactive oxygen species (ROS) generation, mitochondrial membrane depolarization along with an increase in early apoptotic cell population analyzed using Annexin V-FITC/PI double staining assay. Cells showed cell cycle arrest at the G0/G1 phase accompanied by a downregulation in the expression levels of p-Akt (Protein kinase B), p-GSK-3β (Glycogen synthase kinase-3 beta), and Bcl-xl (B-cell lymphoma-extra large) proteins. RT-PCR (Real time-polymerase chain reaction) analysis revealed downregulation in the gene expression level of β-catenin and CDK2 (cyclin-dependent kinases-2) while it upregulated the expression level of caspase-8 and p53 genes in MG-63 cells.
Sandeep Kaur; Ajay Kumar; Sharad Thakur; Kapil Kumar; Ritika Sharma; Anket Sharma; Prabhpreet Singh; Upendra Sharma; Subodh Kumar; Marco Landi; Marián Brestič; Satwinderjeet Kaur. Antioxidant, Antiproliferative and Apoptosis-Inducing Efficacy of Fractions from Cassia fistula L. Leaves. Antioxidants 2020, 9, 173 .
AMA StyleSandeep Kaur, Ajay Kumar, Sharad Thakur, Kapil Kumar, Ritika Sharma, Anket Sharma, Prabhpreet Singh, Upendra Sharma, Subodh Kumar, Marco Landi, Marián Brestič, Satwinderjeet Kaur. Antioxidant, Antiproliferative and Apoptosis-Inducing Efficacy of Fractions from Cassia fistula L. Leaves. Antioxidants. 2020; 9 (2):173.
Chicago/Turabian StyleSandeep Kaur; Ajay Kumar; Sharad Thakur; Kapil Kumar; Ritika Sharma; Anket Sharma; Prabhpreet Singh; Upendra Sharma; Subodh Kumar; Marco Landi; Marián Brestič; Satwinderjeet Kaur. 2020. "Antioxidant, Antiproliferative and Apoptosis-Inducing Efficacy of Fractions from Cassia fistula L. Leaves." Antioxidants 9, no. 2: 173.
Salicylic acid (SA) is a very simple phenolic compound (a C7H6O3 compound composed of an aromatic ring, one carboxylic and a hydroxyl group) and this simplicity contrasts with its high versatility and the involvement of SA in several plant processes either in optimal conditions or in plants facing environmental cues, including heavy metal (HM) stress. Nowadays, a huge body of evidence has unveiled that SA plays a pivotal role as plant growth regulator and influences intra- and inter-plant communication attributable to its methyl ester form, methyl salicylate, which is highly volatile. Under stress, including HM stress, SA interacts with other plant hormones (e.g., auxins, abscisic acid, gibberellin) and promotes the stimulation of antioxidant compounds and enzymes thereby alerting HM-treated plants and helping in counteracting HM stress. The present literature survey reviews recent literature concerning the roles of SA in plants suffering from HM stress with the aim of providing a comprehensive picture about SA and HM, in order to orientate the direction of future research on this topic.
Anket Sharma; Gagan Preet Singh Sidhu; Fabrizio Araniti; Aditi Shreeya Bali; Babar Shahzad; Durgesh Kumar Tripathi; Marian Brestic; Milan Skalicky; Marco Landi. The Role of Salicylic Acid in Plants Exposed to Heavy Metals. Molecules 2020, 25, 540 .
AMA StyleAnket Sharma, Gagan Preet Singh Sidhu, Fabrizio Araniti, Aditi Shreeya Bali, Babar Shahzad, Durgesh Kumar Tripathi, Marian Brestic, Milan Skalicky, Marco Landi. The Role of Salicylic Acid in Plants Exposed to Heavy Metals. Molecules. 2020; 25 (3):540.
Chicago/Turabian StyleAnket Sharma; Gagan Preet Singh Sidhu; Fabrizio Araniti; Aditi Shreeya Bali; Babar Shahzad; Durgesh Kumar Tripathi; Marian Brestic; Milan Skalicky; Marco Landi. 2020. "The Role of Salicylic Acid in Plants Exposed to Heavy Metals." Molecules 25, no. 3: 540.
The Chinese hickory (Carya cathayensis) is an economically important tree species popular for its nuts. However, the tree requires a long time to reach the nut-producing phase. To overcome this problem, grafting is widely used to reduce the time from the vegetative to the reproductive phase. This tree species also faces many environmental challenges due to climate change; drought is an important factor affecting growth and development. Here, we designed an experiment to assess the protective efficiency of melatonin in grafted Chinese hickory plants under drought stress. The results revealed that exogenously applied melatonin successfully recovered the growth of grafted Chinese hickory plants and improved photosynthetic efficiency. Exogenously applied melatonin also boosted the antioxidative defense system of the plants under drought stress, resulting in enhanced reactive oxygen species (ROS) scavenging. The accumulation of compatible solutes such as total soluble sugars and proline was also triggered by melatonin. Moreover, the analyses using metabolomics revealed that drought-stressed plants treated with melatonin regulated key metabolic pathways such as phenylpropanoid, chlorophyll and carotenoid biosynthesis, carbon fixation, and sugar metabolism. To further validate the physiological, biochemical, and metabolomic factors, we studied the molecular mechanisms by analyzing the expression of key genes involved in chlorophyll metabolism (chlorophyllase, CHLASE), antioxidative defense (superoxide dismutase, SOD; catalase, CAT; ascorbate peroxidase, APX; peroxidase, POD), and phenylalanine ammonia-lyase (PAL). Exogenously applied melatonin significantly regulated the transcript levels of key genes involved in the biological processes mentioned above. Melatonin also showed crosstalk with other hormones (zeatin, gibberellin A14, 24-epibrassinolide, jasmonic acid, and abscisic acid) to regulate the physiological processes. The results of this study show that melatonin regulates biological processes at the metabolic and molecular levels to resist drought stress.
Anket Sharma; Junfeng Wang; Dongbin Xu; Shenchen Tao; Sunli Chong; Daoliang Yan; Zhen Li; Huwei Yuan; Bingsong Zheng. Melatonin regulates the functional components of photosynthesis, antioxidant system, gene expression, and metabolic pathways to induce drought resistance in grafted Carya cathayensis plants. Science of The Total Environment 2020, 713, 136675 .
AMA StyleAnket Sharma, Junfeng Wang, Dongbin Xu, Shenchen Tao, Sunli Chong, Daoliang Yan, Zhen Li, Huwei Yuan, Bingsong Zheng. Melatonin regulates the functional components of photosynthesis, antioxidant system, gene expression, and metabolic pathways to induce drought resistance in grafted Carya cathayensis plants. Science of The Total Environment. 2020; 713 ():136675.
Chicago/Turabian StyleAnket Sharma; Junfeng Wang; Dongbin Xu; Shenchen Tao; Sunli Chong; Daoliang Yan; Zhen Li; Huwei Yuan; Bingsong Zheng. 2020. "Melatonin regulates the functional components of photosynthesis, antioxidant system, gene expression, and metabolic pathways to induce drought resistance in grafted Carya cathayensis plants." Science of The Total Environment 713, no. : 136675.
Chromium (Cr) is an element naturally occurring in rocky soils and volcanic dust. It has been classified as a carcinogen agent according to the International Agency for Research on Cancer. Therefore, this metal needs an accurate understanding and thorough investigation in soil–plant systems. Due to its high solubility, Cr (VI) is regarded as a hazardous ion, which contaminates groundwater and can be transferred through the food chain. Cr also negatively impacts the growth of plants by impairing their essential metabolic processes. The toxic effects of Cr are correlated with the generation of reactive oxygen species (ROS), which cause oxidative stress in plants. The current review summarizes the understanding of Cr toxicity in plants via discussing the possible mechanisms involved in its uptake, translocation and sub-cellular distribution, along with its interference with the other plant metabolic processes such as chlorophyll biosynthesis, photosynthesis and plant defensive system.
Anket Sharma; Dhriti Kapoor; Junfeng Wang; Babar Shahzad; Vinod Kumar; Aditi Shreeya Bali; Shivam Jasrotia; Bingsong Zheng; Huwei Yuan; Daoliang Yan. Chromium Bioaccumulation and Its Impacts on Plants: An Overview. Plants 2020, 9, 100 .
AMA StyleAnket Sharma, Dhriti Kapoor, Junfeng Wang, Babar Shahzad, Vinod Kumar, Aditi Shreeya Bali, Shivam Jasrotia, Bingsong Zheng, Huwei Yuan, Daoliang Yan. Chromium Bioaccumulation and Its Impacts on Plants: An Overview. Plants. 2020; 9 (1):100.
Chicago/Turabian StyleAnket Sharma; Dhriti Kapoor; Junfeng Wang; Babar Shahzad; Vinod Kumar; Aditi Shreeya Bali; Shivam Jasrotia; Bingsong Zheng; Huwei Yuan; Daoliang Yan. 2020. "Chromium Bioaccumulation and Its Impacts on Plants: An Overview." Plants 9, no. 1: 100.
In the present study, embryos of four food fishes viz. Cyprinus carpio, Ctenopharyngodon idella, Labeo rohita and Cirrhinus mrigala were given acute (96 h) exposure to their respective LC0, LC10 and LC30 (causing 0, 10 and 30% mortality, respectively) concentrations of triclosan [TCS, 5-chloro-2-(2,4-dichlorophenoxy) phenol], a broad spectrum biocide. Bioaccumulation, contents of protein, non-enzymatic antioxidants (GSH and GSSG), MDA (lipid peroxidation product) and organic acids (fumarate, succinate, malate and citrate) along with the activities of AChE (neurological enzyme), GST (detoxification enzyme) and three metabolic enzymes (LDH, AST and ALT) were estimated after 48 and 96 h exposure and 10 days post exposure. Around 1/10 of the TCS in water got accumulated in the hatchlings after 96 h, increase over 48 h values was maximum at LC0 (+195.30, +143.23 and + 140.75%) but minimum at LC30 (+89.62, +84.26 and + 126.72%) for C. idella, L. rohita and C. mrigala, respectively. In C. carpio, TCS got accumulated only at LC30 after 48 h but at all the concentrations after 96 h exposure. Contents of protein, GSH, GSSG and activity of AChE decreased but activities of GSH, LDH, AST and ALT and contents of MDA and organic acids increased concentration dependently in all the fishes. TCS declined by 85–90% but its toxic effects on biomolecules prolonged till the end of the recovery period. Such acute exposures are accidental but there is a need to evaluate biomarkers for prolongation of the stress of small concentrations especially LC0 and LC10 (causing negligible mortality) of lipophilic pollutants like TCS.
Owias Iqbal Dar; Sunil Sharma; Kirpal Singh; Anket Sharma; Renu Bhardwaj; Arvinder Kaur. Biochemical markers for prolongation of the acute stress of triclosan in the early life stages of four food fishes. Chemosphere 2020, 247, 125914 .
AMA StyleOwias Iqbal Dar, Sunil Sharma, Kirpal Singh, Anket Sharma, Renu Bhardwaj, Arvinder Kaur. Biochemical markers for prolongation of the acute stress of triclosan in the early life stages of four food fishes. Chemosphere. 2020; 247 ():125914.
Chicago/Turabian StyleOwias Iqbal Dar; Sunil Sharma; Kirpal Singh; Anket Sharma; Renu Bhardwaj; Arvinder Kaur. 2020. "Biochemical markers for prolongation of the acute stress of triclosan in the early life stages of four food fishes." Chemosphere 247, no. : 125914.
The environmental stress, biotic as well as abiotic, is the main cause of decreased growth and crop production. One of the stress-causing agents in plants are parasitic nematodes responsible for crop loss. Jasmonic acid (JA) is recognized as one of signaling molecules in defense-related responses in plants, however, its role under nematode infestation is unclear. Therefore, the present study was planned to traverse the role of JA in boosting the activities of antioxidative enzymes in tomato seedlings during nematode inoculation. Application of JA declined oxidative damage by decreasing O2•− content, nuclear and membrane damage under nematode stress. JA treatment elevated the activities of SOD, POD, CAT, APOX, DHAR, GPOX, GR, and PPO in nematode-infested seedlings. Seed soaking treatment of JA upregulated the expression of SOD, POD, CAT, and GPOX under nematode stress. Various amino acids were found in tomato seedlings and higher content of aspartic acid, histidine, asparagine, glutamine, glutamic acid, glycine, threonine, lysine, arginine, B-alanine, GABA, phenylalanine, proline, and ornithine was observed in seeds soaked with JA (100 nM) treatment during nematode inoculation. The results suggest an indispensable role of JA in basal defense response in plants during nematode stress.
Shagun Bali; Parminder Kaur; Vijay Lakshmi Jamwal; Sumit G. Gandhi; Anket Sharma; Puja Ohri; Renu Bhardwaj; Mohammad Ajmal Ali; Parvaiz Ahmad. Seed Priming with Jasmonic Acid Counteracts Root Knot Nematode Infection in Tomato by Modulating the Activity and Expression of Antioxidative Enzymes. Biomolecules 2020, 10, 98 .
AMA StyleShagun Bali, Parminder Kaur, Vijay Lakshmi Jamwal, Sumit G. Gandhi, Anket Sharma, Puja Ohri, Renu Bhardwaj, Mohammad Ajmal Ali, Parvaiz Ahmad. Seed Priming with Jasmonic Acid Counteracts Root Knot Nematode Infection in Tomato by Modulating the Activity and Expression of Antioxidative Enzymes. Biomolecules. 2020; 10 (1):98.
Chicago/Turabian StyleShagun Bali; Parminder Kaur; Vijay Lakshmi Jamwal; Sumit G. Gandhi; Anket Sharma; Puja Ohri; Renu Bhardwaj; Mohammad Ajmal Ali; Parvaiz Ahmad. 2020. "Seed Priming with Jasmonic Acid Counteracts Root Knot Nematode Infection in Tomato by Modulating the Activity and Expression of Antioxidative Enzymes." Biomolecules 10, no. 1: 98.
Agriculture is one of the major human activities that changed the landforms, water resources and the biogeochemical cycles. Pollution of agricultural soilsby metal(loid)s is a serious and global hazard but worldwide studies related to metal(loid)s pollution in agricultural soils are very limited. To fulfil this gap, metal(loid)s content in agricultural soils from 2001 to 2019 all over the world was reviewed. Multivariate statistical techniques, contamination indices and human health risk assessment were determined for the metal(loid)s. Among the analysed metal(loid)s, the average contents of Zn, Cu, Pb, Cr, Cd, As and Ni exceeded the Canadian, and China soil guidelines limits. The results of contamination factor indicated that Cr, Pb, Cd, As and Zn are the key pollution contaminants. As and Cd had the highest enrichment among the analysed metal(loid)s according to the enrichment factor. The potential and modified ecological risk index showed that Cd is the foremost contaminant responsible for ecological threats. The non-carcinogenic risk for ingestion pathway indicated that As, Pb and Cr are the foremost contaminants responsible for affecting human health, while dermal pathway results showed less risk of metal(loid)s in the agricultural soils. The carcinogenic risk revealed that As, Pb and Cr are the key contaminants that affects human health.
Vinod Kumar; Shevita Pandita; Anket Sharma; Palak Bakshi; Pooja Sharma; Ioannis Karaouzas; Renu Bhardwaj; Ashwani Kumar Thukral; Artemi Cerda. Ecological and human health risks appraisal of metal(loid)s in agricultural soils: a review. Geology, Ecology, and Landscapes 2019, 5, 173 -185.
AMA StyleVinod Kumar, Shevita Pandita, Anket Sharma, Palak Bakshi, Pooja Sharma, Ioannis Karaouzas, Renu Bhardwaj, Ashwani Kumar Thukral, Artemi Cerda. Ecological and human health risks appraisal of metal(loid)s in agricultural soils: a review. Geology, Ecology, and Landscapes. 2019; 5 (3):173-185.
Chicago/Turabian StyleVinod Kumar; Shevita Pandita; Anket Sharma; Palak Bakshi; Pooja Sharma; Ioannis Karaouzas; Renu Bhardwaj; Ashwani Kumar Thukral; Artemi Cerda. 2019. "Ecological and human health risks appraisal of metal(loid)s in agricultural soils: a review." Geology, Ecology, and Landscapes 5, no. 3: 173-185.
Artemisia absinthium and Psidium guajava are powerful sources of secondary metabolites, some of them with potential allelopathic activity. Both the species grow together in India with a weed (Parthenium hysterophorus) that is becoming extremely invasive. The aim of the present research was to test the allelopathic effect of A. absinthium and P. guajava aqueous leaf extracts on seed germination, seedling growth (shoot and root length), as well as some biochemical parameters (enzymatic and non-enzymatic antioxidants, photosynthetic pigments, osmolytes, and malondialdehyde by-products) of P. hysterophorus plants. Leaf extracts of both A. absinthium and P. guajava constrained the germination and seedling development (root and shoot length), affected pigment content (chlorophylls, carotenoids), stimulated the activity of antioxidant enzymes, and increased the level of malondialdehyde by-products of P. hysterophorus plants. Non-enzymatic antioxidants (glutathione and ascorbic acid) in P. hysterophorus leaves were, conversely, negatively affected by both leaf extracts tested in the present experiment. Although A. absinthium was more effective than P. guajava in impacting some biochemical parameters of P. hysterophorus leaves (including a higher EC50 for seed germination), P. guajava extract showed a higher EC50 in terms of root inhibition of P. hysterophorus seedlings. The present study provides the evidence that A. absinthium and P. guajava extract could be proficiently exploited as a botanical herbicide against P. hysterophorus.
Dhriti Kapoor; Rinzim; Anupam Tiwari; Amit Sehgal; Marco Landi; Marian Brestic; Anket Sharma. Exploiting the Allelopathic Potential of Aqueous Leaf Extracts of Artemisia absinthium and Psidium guajava against Parthenium hysterophorus, a Widespread Weed in India. Plants 2019, 8, 552 .
AMA StyleDhriti Kapoor, Rinzim, Anupam Tiwari, Amit Sehgal, Marco Landi, Marian Brestic, Anket Sharma. Exploiting the Allelopathic Potential of Aqueous Leaf Extracts of Artemisia absinthium and Psidium guajava against Parthenium hysterophorus, a Widespread Weed in India. Plants. 2019; 8 (12):552.
Chicago/Turabian StyleDhriti Kapoor; Rinzim; Anupam Tiwari; Amit Sehgal; Marco Landi; Marian Brestic; Anket Sharma. 2019. "Exploiting the Allelopathic Potential of Aqueous Leaf Extracts of Artemisia absinthium and Psidium guajava against Parthenium hysterophorus, a Widespread Weed in India." Plants 8, no. 12: 552.
Nowadays, drought is one of the major abiotic factors which negatively affects growth and development of several fruit tree species, including Chinese hickory plants (Carya cathayensis Sarg.). The present investigation was conducted to study the possible positive effects of melatonin in drought resistance of C. cathayensis plants along with associated mechanisms. It was observed that melatonin pre-treatment applied before limited water availability significantly contrasted drought-promoted negative effects in terms of plant growth and physiological responses. Significant improvement was observed in key biological parameters like relative water content, net photosynthetic rate, stomatal conductance, transpiration rate, maximum photosynthetic efficiency of photosystem II (PSII), and PSII electron transport rate. Antioxidant apparatus was also stimulated by melatonin and enhanced activities of superoxide dismutase (SOD), catalase (CAT), and ascorbate peroxidase (APX) were noticed along with higher accumulation of proline. Gene expression studies herein revealed that melatonin promoted the up-regulation of the expression of SOD (70.7%), CAT (32.7%), and APX (66.5%) genes. As a consequence, accumulation of malondialdehyde by-products and leaf symptoms were reduced in melatonin-treated plants. All these observations offer the clear evidence that pre-treatment with melatonin ameliorate the performance of Chinese hickory plants against drought stress.
Junfeng Wang; Juanjuan Chen; Anket Sharma; Shenchen Tao; Bingsong Zheng; Marco Landi; Huwei Yuan; Daoliang Yan. Melatonin Stimulates Activities and Expression Level of Antioxidant Enzymes and Preserves Functionality of Photosynthetic Apparatus in Hickory Plants (Carya cathayensis Sarg.) under PEG-Promoted Drought. Agronomy 2019, 9, 702 .
AMA StyleJunfeng Wang, Juanjuan Chen, Anket Sharma, Shenchen Tao, Bingsong Zheng, Marco Landi, Huwei Yuan, Daoliang Yan. Melatonin Stimulates Activities and Expression Level of Antioxidant Enzymes and Preserves Functionality of Photosynthetic Apparatus in Hickory Plants (Carya cathayensis Sarg.) under PEG-Promoted Drought. Agronomy. 2019; 9 (11):702.
Chicago/Turabian StyleJunfeng Wang; Juanjuan Chen; Anket Sharma; Shenchen Tao; Bingsong Zheng; Marco Landi; Huwei Yuan; Daoliang Yan. 2019. "Melatonin Stimulates Activities and Expression Level of Antioxidant Enzymes and Preserves Functionality of Photosynthetic Apparatus in Hickory Plants (Carya cathayensis Sarg.) under PEG-Promoted Drought." Agronomy 9, no. 11: 702.