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Prof. Yulong Ding . A Professor in Botany at Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, China and Bamboo Research Institute, Nanjing Forestry University, Nanjing, 210037, China
In the current study, the impact of silicon nanoparticles on germination characteristics and key growth parameters was investigated in Moso bamboo seedlings under cadmium (Cd) stress. The seeds were germinated at a concentration of 100 μM Cd alone and in combination with two levels of SiO2 NPs (100 and 200 μM), and the results were compared with those from a control treatment. The results indicated that SiO2 NPs significantly improved germination characteristics (GP, GR, and GI) under Cd toxicity but also led to increased mean germination time (MGT). On the other hand, the results indicated that the seedling growth indexes, seedling biomass and vigor indexes of Moso bamboo improved under a combination of 100 μM Cd and silicon nanoparticles. We concluded that SiO2 NPs could ameliorate cadmium toxicity during seed germination and that the enhanced germination parameters improved seedling growth in Moso bamboo under Cd toxicity. We also found that SiO2 NPs at 200 μM rather than 100 μM had a greater beneficial impact on the seed germination and the seedling growth under the Cd stress of 100 μM. Thus, the use of SiO2 NPs may help in controlling Cd toxicity at the stages of seed germination and seedling growth in Moso bamboo (Phyllostachys edulis).
Abolghassem Emamverdian; Yulong Ding; Farzad Mokhberdoran; Zishan Ahmad; Yinfeng Xie. The Effect of Silicon Nanoparticles on the Seed Germination and Seedling Growth of Moso Bamboo (Phyllostachys edulis) under Cadmium Stress. Polish Journal of Environmental Studies 2021, 30, 3033 -3042.
AMA StyleAbolghassem Emamverdian, Yulong Ding, Farzad Mokhberdoran, Zishan Ahmad, Yinfeng Xie. The Effect of Silicon Nanoparticles on the Seed Germination and Seedling Growth of Moso Bamboo (Phyllostachys edulis) under Cadmium Stress. Polish Journal of Environmental Studies. 2021; 30 (4):3033-3042.
Chicago/Turabian StyleAbolghassem Emamverdian; Yulong Ding; Farzad Mokhberdoran; Zishan Ahmad; Yinfeng Xie. 2021. "The Effect of Silicon Nanoparticles on the Seed Germination and Seedling Growth of Moso Bamboo (Phyllostachys edulis) under Cadmium Stress." Polish Journal of Environmental Studies 30, no. 4: 3033-3042.
The recent emerging evidence reveals that titanium dioxide nanoparticles (TiO2 NPs) can be used as a wastewater treatment. This study provides new information about the possible detoxification role of TiO2 NPs as a wastewater treatment in plants under heavy metal stress, with an emphasis on the mechanisms involved. Here, we investigated the effects of TiO2 NPs as one wastewater treatment on a bamboo species (Arundinaria pygmaea L.) under in vitro Cadmium (Cd) toxicity conditions. A factorial experiment was conducted in a completely randomized design with four replications of four concentrations of Cd (50, 100, 200, and 300 µM) alone and in combination with 100 and 200 µM TiO2 NPs as two wastewater treatments, as well as a control treatment. The results indicated that TiO2 NPs concentrations enhanced enzymatic and non-enzymatic antioxidant activities and proline accumulation as well as reducing hydrogen peroxide (H2O2), superoxide radical (O2 •−), and malondialdehyde (MDA) levels, which led to improved photosynthetic parameters with an eventual increase in plant biomass as compared to the control treatment. Therefore, TiO2 NPs improved the photosynthetic parameters of bamboo under Cd toxicity, which led to an increase in plant biomass. We concluded that the wastewater treatments of TiO2 NPs improved bamboo biomass through the scavenging of reactive oxygen species (ROS) compounds (H2O2 and O2 •−), which was induced by the stimulation of the antioxidant capacity of the plant. TiO2 also protected cell membranes by reducing lipoperoxidation in bamboo under Cd toxicity. The concentration of 200 µM TiO2 NPs had the most impact in reducing Cd toxicity.
Abolghassem Emamverdian; Yulong Ding; Farzad Mokhberdoran; Zishan Ahmad; Yinfeng Xie. The Investigation of TiO2 NPs Effect as a Wastewater Treatment to Mitigate Cd Negative Impact on Bamboo Growth. Sustainability 2021, 13, 3200 .
AMA StyleAbolghassem Emamverdian, Yulong Ding, Farzad Mokhberdoran, Zishan Ahmad, Yinfeng Xie. The Investigation of TiO2 NPs Effect as a Wastewater Treatment to Mitigate Cd Negative Impact on Bamboo Growth. Sustainability. 2021; 13 (6):3200.
Chicago/Turabian StyleAbolghassem Emamverdian; Yulong Ding; Farzad Mokhberdoran; Zishan Ahmad; Yinfeng Xie. 2021. "The Investigation of TiO2 NPs Effect as a Wastewater Treatment to Mitigate Cd Negative Impact on Bamboo Growth." Sustainability 13, no. 6: 3200.
Optimum shoot production in Dendrocalamus brandisii (Munro) Kurz depends on either standing culm density (SCD) or application of fertilizer. However, silvicultural application through the combined effect of SCD and fertilizer regimes is not fully understood. In this study, effects of SCD and fertilizer regimes, relationships between silvicultural treatments and growth parameters and model prediction on shoot production were conducted. A split-plot factorial design was applied in three blocks consisting of two main factors (SCD and fertilizer regimes). These were three SCD levels (2-1, 2-2 and control) and six fertilizer regimes (15 kg clump−1 compost; 0.25 kg clump−1 NPK mixed with 7.5 kg clump−1 compost; 0.5 kg clump−1 NPK; 0.75 kg clump−1 NPK; 1 kg clump−1 NPK; and control). Data collection on culms height, Diameter at breast height (DBH), soil properties and total number of shoots and shoot yield) was conducted from early July to mid-October. A total of 3,380 edible shoots ha−1 and 7.1 ton ha−1 shoot yield were harvested. Higher available nutrients (P and K) and total soil organic carbon (SOC) were associated by favorable soil pH, higher cation exchange capacity (CEC) and lower exchangeable acidity (EA) after fertilizer application. The largest shoot yield (12.04 ton ha−1) was recorded in 2-2 SCD responded to 0.75 kg clump−1 NPK. Shoot production further improved from 0.5 kg clump−1 NPK to 0.75 kg clump−1 and eventually declined to 1 kg. Linear mixed-effects model (LMM) showed that shoot yield had a positive and significant correlation (p<0.05) among D. brandisii silvicultural treatments and culm DBH classes. Our finding indicates that silvicultural application (SCD and fertilizer regimes) in relation to culm DBH classes could be a key factor for higher D. brandisii shoot production.
Tinsae Bahru; Guohua Liu; Yulong Ding. Effects of standing culm density and fertilizer regimes on Dendrocalamus brandisii (Munro) Kurz shoot production at Simao District, southwestern China. Trees, Forests and People 2021, 4, 100071 .
AMA StyleTinsae Bahru, Guohua Liu, Yulong Ding. Effects of standing culm density and fertilizer regimes on Dendrocalamus brandisii (Munro) Kurz shoot production at Simao District, southwestern China. Trees, Forests and People. 2021; 4 ():100071.
Chicago/Turabian StyleTinsae Bahru; Guohua Liu; Yulong Ding. 2021. "Effects of standing culm density and fertilizer regimes on Dendrocalamus brandisii (Munro) Kurz shoot production at Simao District, southwestern China." Trees, Forests and People 4, no. : 100071.
Bamboo plants have a distinctive life cycle with long flowering periodicity. Many species remain in vegetative growth for decades, followed by large-scale flowering and subsequent death. Floral transition is activated while shoot buds are still dormant in bamboo plants. In this study, we performed morphological characterization and transcriptome analysis of the shoot buds at different growth stages from flowering and non-flowering Pleioblastus pygmaeus. The morphological and anatomical structures of the dormant shoot buds were similar in flowering and non-flowering plants, while there was an obvious difference between the flower buds from flowering plants and the leaf buds from non-flowering plants. The transcriptomes of the dormant shoot buds, germinated shoots, and flower buds from flowering P. pygmaeus, and the dormant shoot buds, germinated shoots, and leaf buds from non-flowering P. pygmaeus were profiled and compared by RNA-Seq. The identified sequences were mostly related to metabolic synthesis, signal transmission, translation, and other functions. A total of 2434 unigenes involved in different flowering pathways were screened from transcriptome comparisons. The differentially expressed unigenes associated with the photoperiod pathway were related to circadian rhythm and plant hormone signal transduction. Moreover, the relative expression levels of a few key flowering-related genes such as CO, FT, FLC, and SOC1 were quantified by qRT-PCR, which was in accordance with RNA-Seq. The study revealed morphological differences in the shoot buds at different growth stages and screened flowering-related genes by transcriptome comparisons of the shoot buds from flowering and non-flowering P. pygmaeus, which will enrich the research on reproductive biology of bamboo plants and shed light on the molecular mechanism of the floral transition in bamboo plants.
Wenjing Yao; Chuanzhe Li; Shuyan Lin; Li Ren; Yawen Wan; Li Zhang; Yulong Ding. Morphological Characteristics and Transcriptome Comparisons of the Shoot Buds from Flowering and Non-Flowering Pleioblastus pygmaeus. Forests 2020, 11, 1229 .
AMA StyleWenjing Yao, Chuanzhe Li, Shuyan Lin, Li Ren, Yawen Wan, Li Zhang, Yulong Ding. Morphological Characteristics and Transcriptome Comparisons of the Shoot Buds from Flowering and Non-Flowering Pleioblastus pygmaeus. Forests. 2020; 11 (11):1229.
Chicago/Turabian StyleWenjing Yao; Chuanzhe Li; Shuyan Lin; Li Ren; Yawen Wan; Li Zhang; Yulong Ding. 2020. "Morphological Characteristics and Transcriptome Comparisons of the Shoot Buds from Flowering and Non-Flowering Pleioblastus pygmaeus." Forests 11, no. 11: 1229.
This research was carried out in a tissue culture study to analyze the impact of silicon dioxide nanoparticles on growth, photosynthesis and protective enzymes of a bamboo species (Arundinaria pygmaea) under three various heavy metal stresses (copper (Cu), manganese (Mn), and cadmium (Cd)). The treatments consisted of four concentrations of heavy metals (50, 100, 200, 400 μM) in combination with 100 μM silicon dioxide nanoparticles in comparison to controls. The results indicated that silicon dioxide nanoparticles under heavy metals (Cu and Mn) increased plant growth relative to the control, and they alleviated Cu and Mn toxicity, as reflected by significant increases in protective enzymes, chlorophyll content and fluorescence, as well as plant biomass and shoot length. However, the treatments under Cd concentrations resulted in a significantly decreased biomass and shoots length, which suggested that 100 μM silicon dioxide nanoparticles treatment was unable to prevent Cd accumulation in leaves through internal and external mechanisms. Overall, we concluded that 100 μM silicon dioxide nanoparticles increased the tolerance of bamboo species to heavy metals stress (Cu and Mn) and promoted plant growth indexes by evoking key mechanisms, including inhibiting metal accumulation in the leaves by the adsorption of the metal ions onto silicon dioxide nanoparticles, increasing levels of protective enzymes, and improving photosynthetic properties such as enhanced light-use efficiency and light transmission. We suggest that the combination of 100 μM silicon dioxide nanoparticles with concentrations of 100 and 200 μM heavy metals (Cu and Mn) can confer optimal growth rate, representing the threshold of the plant tolerance to heavy metals in a combination with 100 μM silicon dioxide nanoparticles.
Abolghassem Emamverdian; Yulong Ding; Farzad Mokhberdoran; Zishan Ahmad; Yinfeng Xie. Determination of heavy metal tolerance threshold in a bamboo species (Arundinaria pygmaea) as treated with silicon dioxide nanoparticles. Global Ecology and Conservation 2020, 24, e01306 .
AMA StyleAbolghassem Emamverdian, Yulong Ding, Farzad Mokhberdoran, Zishan Ahmad, Yinfeng Xie. Determination of heavy metal tolerance threshold in a bamboo species (Arundinaria pygmaea) as treated with silicon dioxide nanoparticles. Global Ecology and Conservation. 2020; 24 ():e01306.
Chicago/Turabian StyleAbolghassem Emamverdian; Yulong Ding; Farzad Mokhberdoran; Zishan Ahmad; Yinfeng Xie. 2020. "Determination of heavy metal tolerance threshold in a bamboo species (Arundinaria pygmaea) as treated with silicon dioxide nanoparticles." Global Ecology and Conservation 24, no. : e01306.
Bamboo forests are undoubtedly one of the most abundant nontimber plants on Earth and cover a wide area of tropical and subtropical regions around the world. This amazing plant has unique rapid growth and can play an important role in protecting our planet from pollution and improving the soil. Bamboo can be used as a biofuel, food, and for architecture and construction applications and plays a large role in the local economy by creating job opportunities. The aim of this paper is to review the extraordinary tropical plant bamboo by explaining the mechanisms related to the growth and strength of bamboo and identifying ways to utilize bamboo in industry, employment, climate change mitigation, and soil erosion reduction.
Abolghassem Emamverdian; Yulong Ding; Fatemeh Ranaei; Zishan Ahmad. Application of Bamboo Plants in Nine Aspects. The Scientific World Journal 2020, 2020, 1 -9.
AMA StyleAbolghassem Emamverdian, Yulong Ding, Fatemeh Ranaei, Zishan Ahmad. Application of Bamboo Plants in Nine Aspects. The Scientific World Journal. 2020; 2020 ():1-9.
Chicago/Turabian StyleAbolghassem Emamverdian; Yulong Ding; Fatemeh Ranaei; Zishan Ahmad. 2020. "Application of Bamboo Plants in Nine Aspects." The Scientific World Journal 2020, no. : 1-9.
Salicylic acid (SA) and gibberellins (GAs), as two important plant growth hormones, play a key role in increasing plant tolerance to abiotic stress. They contribute to the increased plant antioxidant activities in ROS scavenging, which is related to the enzymes involved in H2O2-detoxifying. In photosynthetic cycles, the endogenous form of these phytohormones enhances photosynthetic properties such as stomatal conductance, net photosynthesis (PN), photosynthetic oxygen evolution, and efficiency of carboxylation. Furthermore, in cell cycle, they are able to influence division and expansion of cell growth in plants under stress, leading to increased growth of radicle cells in a meristem, and ultimately contributing to the increased germination rate and lengths of shoot and root in the stress-affected plants. In the case of crosstalk between SA and GA, exogenous GA3 can upregulate biosynthesis of SA and consequently result in rising levels of SA, enhancing plant defense response to environmental abiotic stresses. The aim of this paper was to investigate the mechanisms related to GA and SA phytohormones in amelioration of abiotic stress, in particular, heavy metal stress.
Abolghassem Emamverdian; Yulong Ding; Farzad Mokhberdoran. The role of salicylic acid and gibberellin signaling in plant responses to abiotic stress with an emphasis on heavy metals. Plant Signaling & Behavior 2020, 15, 1777372 .
AMA StyleAbolghassem Emamverdian, Yulong Ding, Farzad Mokhberdoran. The role of salicylic acid and gibberellin signaling in plant responses to abiotic stress with an emphasis on heavy metals. Plant Signaling & Behavior. 2020; 15 (7):1777372.
Chicago/Turabian StyleAbolghassem Emamverdian; Yulong Ding; Farzad Mokhberdoran. 2020. "The role of salicylic acid and gibberellin signaling in plant responses to abiotic stress with an emphasis on heavy metals." Plant Signaling & Behavior 15, no. 7: 1777372.
Litterfall is the primary interface between the forest canopy and forest floor for efficient carbon and nutrient cycling. However, there is limited knowledge on factors that influence D. brandisii litter production and its seasonal dynamics. In this study, we investigated the relationship between stand density, canopy leaf area index (LAI) and growth variables in relation to litter production and its seasonal dynamics. In the 5-year-old D. brandisii plantation, three blocks were established and 72 litter traps were installed in the forest floor. Litter collection was conducted at the end of every season from June 2018 to May 2019. The relationship between litter production with climate variables further analyzed using 12 months weather data. On average, 207.23 ± 6.89 g m−2 y−1 D. brandisii annual litter production was recorded in the forest floor. Of this, the highest amount of litterfall (97.39 ± 4.62 g m−2 y−1) was obtained during warm and rainy summer season, followed by autumn (52.42 ± 2.43 g m−2 y−1). Higher stand density with larger canopy leaf area attributed to enhanced canopy LAI. Dense stands associated with closed canopy closure, by contrast, reduced culms diameter at breast height (DBH) size. This results in lower canopy LAI and hence reduced litter production in the forest floor. Alternatively, lower canopy leaf area compared to higher canopy spread area resulted in reduced canopy LAI (0.74 ± 0.09 m2 m−2). As a whole, the generalized linear mixed model (GLMM) confirmed that litter production was directly proportional to stand density or canopy LAI across almost all culm DBH classes. Litter production also had a positive relation with stand density in relation to canopy LAI or the vice versa. In conclusion, managing the canopy structure in a dense stands and closed canopy through thinning practices enhances canopy LAI and culms DBH and hence maximize D. brandisii litter production in the forest floor.
Tinsae Bahru; Yulong Ding. Effect of stand density, canopy leaf area index and growth variables on Dendrocalamus brandisii (Munro) Kurz litter production at Simao District of Yunnan Province, southwestern China. Global Ecology and Conservation 2020, 23, e01051 .
AMA StyleTinsae Bahru, Yulong Ding. Effect of stand density, canopy leaf area index and growth variables on Dendrocalamus brandisii (Munro) Kurz litter production at Simao District of Yunnan Province, southwestern China. Global Ecology and Conservation. 2020; 23 ():e01051.
Chicago/Turabian StyleTinsae Bahru; Yulong Ding. 2020. "Effect of stand density, canopy leaf area index and growth variables on Dendrocalamus brandisii (Munro) Kurz litter production at Simao District of Yunnan Province, southwestern China." Global Ecology and Conservation 23, no. : e01051.
Bamboo shoots have been used by Chinese people as a popular and delicious dish up to 3000 years. Out of 534 bamboo species in China, about 50 species are used as source of edible shoot. However, little or almost no intensive management intervention has been applied for optimum shoot production of clump forming bamboo forest, especially for Dendrocalamus brandisii (Munro) Kurz. Therefore, the present study aimed to: (1) investigate the effects of thinning intensity on D. brandisii shoot production, (2) assess the effects of growth parameters on D. brandisii shoot production, and (3) develop a model to predict shoot production from a 5-year-old D. brandisii plantation. In February, using a randomized complete block design (RCBD) five thinning intensity treatments (1–0, 1-1, 2–1, 2-2 standing culm density (SCD) and control) were established in three blocks along an altitudinal gradient that covered an area of about 0.072 ha. Data collection (number of shoots and shoot yield) was conducted from mid-July to mid-October. A total of 130 edible shoots weighing 278.5 kg were harvested from 0.072 ha. This accounted for 2.89 harvested shoots clump−1 with 3.87 ton ha−1 shoot yield. On average, the largest shoot yield (2.74 kg or 5.84 ton ha−1) was harvested from a 2-2 standing culm density (SCD) (T4). The developed model illustrated that shoot yield was positively and significantly (p < 0.05) correlated with thinning intensity. The model further demonstrated that all culm DBH classes in T4 and/or T3 had the largest shoot yield compared to the control treatment (T5). Despite fewer numbers of shoots in T4 compared to T3, the larger shoot size in T4 made more attractive and promising for D. brandisii shoot production. Future studies should be considered on the combined effect of SCD, fertilizer regime and irrigation scheme for a better understanding about optimum shoot production.
Tinsae Bahru; Yulong Ding. Effects of thinning intensity and growth parameters on Dendrocalamus brandisii (Munro) Kurz shoot production in Simao District, Yunnan Province, southwestern China. Global Ecology and Conservation 2020, 22, e00954 .
AMA StyleTinsae Bahru, Yulong Ding. Effects of thinning intensity and growth parameters on Dendrocalamus brandisii (Munro) Kurz shoot production in Simao District, Yunnan Province, southwestern China. Global Ecology and Conservation. 2020; 22 ():e00954.
Chicago/Turabian StyleTinsae Bahru; Yulong Ding. 2020. "Effects of thinning intensity and growth parameters on Dendrocalamus brandisii (Munro) Kurz shoot production in Simao District, Yunnan Province, southwestern China." Global Ecology and Conservation 22, no. : e00954.
Development of highly sensitive and reliable method for detection of phytohormones is of great significance to study plant hormones and agricultural production. In this study, an ultra-high-performance liquid chromatography-mass spectrometry/mass spectrometry method was established for separation and quantification of trans-zeatin, trans-zeatin riboside, gibberellin A3, indol-3-acetic acid, salicylic acid, abscisic acid, and jasmonic acid (JA) without any label. The separation was performed on an Agilent Explus Plus C18 column by using methanol and water as mobile phases with gradient elution. The target compounds were confirmed and quantified by mass spectrum via positive electrospray ionization for trans-zeatin, trans-zeatin riboside, indole-3-acetic acid, and via negative electrospray ionization for gibberellin3, salicylic acid, abscisic acid, and JA. The limits of detection ranged from 0.0127 ng L−1 for gibberellin A3 (GA3) to 33.26 ng L−1 for JA and were lower than the currently reported values in literature. The proposed method was applied for qualitative and quantitative analyses of phytohormones in peanut gynophores and pods. The recoveries of the spiked phytohormones ranged from 80.20 to 102.56%. The contents of seven endogenous hormones varied specifically in different development stages of peanuts. This study provides a highly sensitive and selective detection method for hormones and elucidates the growth and development of the gynophore and peanut fruit, which are controlled by seven endogenous hormones.
Hai-Xia Wang; Ming-Lun Wang; Xiu-Zhong Wang; Yu-Long Ding. Detection of seven phytohormones in peanut tissues by ultra-high-performance liquid chromatography-triple quadrupole tandem mass spectrometry. Journal of Integrative Agriculture 2020, 19, 700 -708.
AMA StyleHai-Xia Wang, Ming-Lun Wang, Xiu-Zhong Wang, Yu-Long Ding. Detection of seven phytohormones in peanut tissues by ultra-high-performance liquid chromatography-triple quadrupole tandem mass spectrometry. Journal of Integrative Agriculture. 2020; 19 (3):700-708.
Chicago/Turabian StyleHai-Xia Wang; Ming-Lun Wang; Xiu-Zhong Wang; Yu-Long Ding. 2020. "Detection of seven phytohormones in peanut tissues by ultra-high-performance liquid chromatography-triple quadrupole tandem mass spectrometry." Journal of Integrative Agriculture 19, no. 3: 700-708.
In addition to regulating plant growth and development, phytohormones play an essential role in the response to abiotic and biotic stress – especially heavy metal stress. In response to environmental stressors, phytohormones act as signaling molecules in both exogenous and endogenous signaling...
Abolghassem Emamverdian; Yulong Ding; Yinfeng Xie. The Role of New Members of Phytohormones in Plant Amelioration under Abiotic Stress with an Emphasis on Heavy Metals. Polish Journal of Environmental Studies 2020, 29, 1009 -1020.
AMA StyleAbolghassem Emamverdian, Yulong Ding, Yinfeng Xie. The Role of New Members of Phytohormones in Plant Amelioration under Abiotic Stress with an Emphasis on Heavy Metals. Polish Journal of Environmental Studies. 2020; 29 (2):1009-1020.
Chicago/Turabian StyleAbolghassem Emamverdian; Yulong Ding; Yinfeng Xie. 2020. "The Role of New Members of Phytohormones in Plant Amelioration under Abiotic Stress with an Emphasis on Heavy Metals." Polish Journal of Environmental Studies 29, no. 2: 1009-1020.
Background Fargesia macclureana (Poaceae) is a woody bamboo species found on the Qinghai–Tibet Plateau (QTP) approximately 2000 ~ 3800 m above sea level. It rarely blossoms in the QTP, but it flowered 20 days after growing in our lab, which is in a low-altitude area outside the QTP. To date, little is known regarding the molecular mechanism of bamboo flowering, and no studies of flowering have been conducted on wild bamboo plants growing in extreme environments. Here, we report the first de novo transcriptome sequence for F. macclureana to investigate the putative mechanisms underlying the flowering time control used by F. macclureana to adapt to its environment. Results Illumina deep sequencing of the F. macclureana transcriptome generated 140.94 Gb of data, assembled into 99,056 unigenes. A comprehensive analysis of the broadly, specifically and differentially expressed unigenes (BEUs, SEUs and DEUs) indicated that they were mostly involved in metabolism and signal transduction, as well as DNA repair and plant-pathogen interactions, which may be of adaptive importance. In addition, comparison analysis between non-flowering and flowering tissues revealed that expressions of FmFT and FmHd3a, two putative F. macclureana orthologs, were differently regulated in NF- vs F- leaves, and carbohydrate metabolism and signal transduction were two major KEGG pathways that DEUs were enriched in. Finally, we detected 9296 simple sequence repeats (SSRs) that may be useful for further molecular marker-assisted breeding. Conclusions F. macclureana may have evolved specific reproductive strategies for flowering-related pathways in response to photoperiodic cues to ensure long vegetation growing period. Our findings will provide new insights to future investigations into the mechanisms of flowering time control and adaptive evolution in plants growing at high altitudes.
Ying Li; Chunxia Zhang; Kebin Yang; Jingjing Shi; Yulong Ding; Zhimin Gao. De novo sequencing of the transcriptome reveals regulators of the floral transition in Fargesia macclureana (Poaceae). BMC Genomics 2019, 20, 1 -15.
AMA StyleYing Li, Chunxia Zhang, Kebin Yang, Jingjing Shi, Yulong Ding, Zhimin Gao. De novo sequencing of the transcriptome reveals regulators of the floral transition in Fargesia macclureana (Poaceae). BMC Genomics. 2019; 20 (1):1-15.
Chicago/Turabian StyleYing Li; Chunxia Zhang; Kebin Yang; Jingjing Shi; Yulong Ding; Zhimin Gao. 2019. "De novo sequencing of the transcriptome reveals regulators of the floral transition in Fargesia macclureana (Poaceae)." BMC Genomics 20, no. 1: 1-15.
Tissue culture experiments were performed to investigate the impacts of silicon dioxide nanoparticles (SiO2 NPs) on the improvement of plant growth and development in a bamboo species (Pleioblastus pygmaeus) under an experimentally controlled condition contaminated with phytotoxic levels of lead (Pb). Fifteen treatments were administered in the primary trial consisting of 50 µM, 250 µM, 500 µM, 1000 µM, or 1500 µM PbSO4 without and with 100 µM or 500 µM SiO2 NPs. The results showed that antioxidant enzyme activity first increased at low levels of Pb and then decreased with increasing concentrations of Pb. The addition of SiO2 NPs increased the capacity of the antioxidant enzymes superoxide dismutase (SOD), catalase (CAT), glutathione reductase (GR) and phenylalanine ammonia-lyase (PAL) in plants under Pb stress. Additionally, our findings indicated that SiO2 NPs may protect the bamboo plant plasma membrane and preserve the integrity of cells against Pb-induced oxidative stress by reducing the contents of hydrogen peroxide (H2O2) and soluble protein (SP), and polyphenol oxidase (PPO) activity. Regarding impacts on indexes of plant photosynthesis, the results revealed that SiO2 NPs were able to regulate plant growth by increasing chlorophyll and carotenoid contents, which led to increased plant biomass and plant dry weight under Pb toxicity. We conclude that SiO2 NPs improve plant growth (plant biomass) by increasing antioxidant enzyme capacity in bamboo under Pb stress. Our results also revealed that 500 µM SiO2 NPs was much more effective than 100 µM SiO2 NPs at maintaining plant growth under Pb toxicity.
Abolghassem Emamverdian; Yulong Ding; Farzad Mokhberdoran; Yinfeng Xie; Xiao Zheng; Yujun Wang. Silicon dioxide nanoparticles improve plant growth by enhancing antioxidant enzyme capacity in bamboo (Pleioblastus pygmaeus) under lead toxicity. Trees 2019, 34, 469 -481.
AMA StyleAbolghassem Emamverdian, Yulong Ding, Farzad Mokhberdoran, Yinfeng Xie, Xiao Zheng, Yujun Wang. Silicon dioxide nanoparticles improve plant growth by enhancing antioxidant enzyme capacity in bamboo (Pleioblastus pygmaeus) under lead toxicity. Trees. 2019; 34 (2):469-481.
Chicago/Turabian StyleAbolghassem Emamverdian; Yulong Ding; Farzad Mokhberdoran; Yinfeng Xie; Xiao Zheng; Yujun Wang. 2019. "Silicon dioxide nanoparticles improve plant growth by enhancing antioxidant enzyme capacity in bamboo (Pleioblastus pygmaeus) under lead toxicity." Trees 34, no. 2: 469-481.
Investigating factors involved in the alleviation of the toxic effects of heavy metals (HMs) on plants is regarded as one of the important research concerns in the environmental field. The southern regions of China are severely impacted by human-induced heavy metal (HM) contamination, which poses an impediment to growth and productivity of bamboo (Indocalamus latifolius) plants. This necessitates the investigation of the effects of HMs on growth and physiological properties of bamboo. Therefore, the aim of the study was to evaluate some gas exchange and growth parameters in two-year-old bamboo species under HMs stress. A greenhouse-based experiment was conducted at Nanjing Forestry University, where the bamboo plant was treated with three HMs (Cu, Pb, and Zn) at four different concentrations (0, 500, 1000, and 2000 mg kg-1). The results illustrated that excessive HMs (1000 and 2000 mg kg−1) triggered a decline in a number of photosynthetic-related indices including the rate of photosynthesis (μmol CO2 m−2 s−1), intercellular CO2 concentration (μmol CO2 mol−1), conductance to H2O (mol H2O m−2 s−1), and net assimilation as well as transpiration. Morphological indices were also depressed as a result of the adverse influence of HMs, leading to decreased shoot length (10 to 73%) and reduced number of emerged plants (6 to 57%). Also, the results indicated that Pb had the greatest harmful impact on the growth indices.
Abolghassem Emamverdian; Yulong Ding; Farzad Mokhberdoran; Yinfeng Xie. Growth Responses and Photosynthetic Indices of Bamboo Plant (Indocalamus latifolius) under Heavy Metal Stress. The Scientific World Journal 2018, 2018, 1 -6.
AMA StyleAbolghassem Emamverdian, Yulong Ding, Farzad Mokhberdoran, Yinfeng Xie. Growth Responses and Photosynthetic Indices of Bamboo Plant (Indocalamus latifolius) under Heavy Metal Stress. The Scientific World Journal. 2018; 2018 ():1-6.
Chicago/Turabian StyleAbolghassem Emamverdian; Yulong Ding; Farzad Mokhberdoran; Yinfeng Xie. 2018. "Growth Responses and Photosynthetic Indices of Bamboo Plant (Indocalamus latifolius) under Heavy Metal Stress." The Scientific World Journal 2018, no. : 1-6.
Silicon, an abundant element in the earth’s crust, is a known factor in reducing the toxicity of plants. The effects of silicon were investigated to the amelioration of Zinc (Zn) toxicity on antioxidant enzyme activities (Superoxide dismutase (SOD), Catalase (CAT), and Glutathione Reductase (GR)), Hydrogen peroxide concentrations (H2O2), phenylalanine ammonia-lyase (PAL), and soluble protein (SP) in one bamboo species (Arundinaria pygmaea). This study was conducted in vitro condition to determine the effects of four Zn concentrations (100, 300, 500, and 1000 µmol/L) at two different concentrations of silicon (Si) (0 and 100 µmol/L) on a single bamboo species (Arundinaria pygmaea). The results indicated that Si can stimulate the plant defense mechanism and ameliorate heavy metal stress caused by Zn concentrations, which can increase antioxidant enzyme and non-enzyme activity and decrease damaging effects caused by free radicals, H2O2, and soluble protein in this bamboo species. Furthermore, the results indicated that the combination of 100/300 µmol/L had a considerable impact on the reduction of Zn toxicity.
Abolghassem Emamverdian; Yulong Ding; Yinfeng Xie. Effects of Silicon in the Amelioration of Zn Toxicity on Antioxidant Enzyme Activities. Toxicology and Environmental Health Sciences 2018, 10, 90 -96.
AMA StyleAbolghassem Emamverdian, Yulong Ding, Yinfeng Xie. Effects of Silicon in the Amelioration of Zn Toxicity on Antioxidant Enzyme Activities. Toxicology and Environmental Health Sciences. 2018; 10 (2):90-96.
Chicago/Turabian StyleAbolghassem Emamverdian; Yulong Ding; Yinfeng Xie. 2018. "Effects of Silicon in the Amelioration of Zn Toxicity on Antioxidant Enzyme Activities." Toxicology and Environmental Health Sciences 10, no. 2: 90-96.
The increased contaminants caused by anthropogenic activities in the environment and the importance of finding pathways to reduce pollution caused the silicon application to be considered an important detoxification agent. Silicon, as a beneficial element, plays an important role in amelioration of abiotic stress, such as an extreme dose of heavy metal in plants. There are several mechanisms involved in silicon mediation in plants, including the reduction of heavy metal uptake by plants, changing pH value, formation of Si heavy metals, and stimulation of enzyme activity, which can work by chemical and physical pathways. The aim of this paper is to investigate the major silicon-related mechanisms that reduce the toxicity of heavy metals in plants and then to assess the role of silicon in increasing the antioxidant enzyme and nonenzyme activities to protect the plant cell.
Abolghassem Emamverdian; Yulong Ding; Yinfeng Xie; Sirous Sangari. Silicon Mechanisms to Ameliorate Heavy Metal Stress in Plants. BioMed Research International 2018, 2018, 1 -10.
AMA StyleAbolghassem Emamverdian, Yulong Ding, Yinfeng Xie, Sirous Sangari. Silicon Mechanisms to Ameliorate Heavy Metal Stress in Plants. BioMed Research International. 2018; 2018 ():1-10.
Chicago/Turabian StyleAbolghassem Emamverdian; Yulong Ding; Yinfeng Xie; Sirous Sangari. 2018. "Silicon Mechanisms to Ameliorate Heavy Metal Stress in Plants." BioMed Research International 2018, no. : 1-10.
As an ecologically and economically important endemic bamboo species, moso (Phyllostachys edulis) has been widely distributed in Southern China. In the paper, 20 fluorescently labeled microsatellite markers were used to evaluate the genetic structure of Ph. edulis including 34 representative populations (803 individuals) covering the geographic range in China. Moderate genetic diversity (H = 0.376) and differentiation (Gst = 0.162) were detected at the species level, with the majority of genetic diversity occurring within populations (84.55%). Bayesian model-based structure analysis and sNMF/ANLS-AS method revealed the presence of two and three clusters. When K = 2, majority of populations (except SX) were clustered together (C1). It implied that SX, known as an introduced and isolated founder population, significantly differed from other populations for distinct environmental selection and allele mutation with the proof of scarce outcrossing and relatively high frequency of private allele. While K = 3, two subgroups (C1a of 18 populations and C1b of 14 populations) were detected within C1. The C1b displayed as a belt-shape region with an east-west direction. It coincided with the extremely high artificial selection in C1b (lower genetic diversity than that of C1a) due to the intensive plantation in the last four decades. Our results implied that the population protection and germplasm collection of moso bamboo should be not only from representative populations in Zhejiang, Jiangxi, Fujian, and other places with intensive cultivation in the east of China, but from populations with high level of gene and genotypic diversity in the west (e.g., HN5, GD1, GZ2, YN1, and SX).
Weixin Jiang; Tiandao Bai; Huiming Dai; Qiang Wei; Wenjü Zhang; Yulong Ding. Microsatellite markers revealed moderate genetic diversity and population differentiation of moso bamboo (Phyllostachys edulis)—a primarily asexual reproduction species in China. Tree Genetics & Genomes 2017, 13, 130 .
AMA StyleWeixin Jiang, Tiandao Bai, Huiming Dai, Qiang Wei, Wenjü Zhang, Yulong Ding. Microsatellite markers revealed moderate genetic diversity and population differentiation of moso bamboo (Phyllostachys edulis)—a primarily asexual reproduction species in China. Tree Genetics & Genomes. 2017; 13 (6):130.
Chicago/Turabian StyleWeixin Jiang; Tiandao Bai; Huiming Dai; Qiang Wei; Wenjü Zhang; Yulong Ding. 2017. "Microsatellite markers revealed moderate genetic diversity and population differentiation of moso bamboo (Phyllostachys edulis)—a primarily asexual reproduction species in China." Tree Genetics & Genomes 13, no. 6: 130.
As of today, the functions of fusoid cell, and the transport and loading pathways of photoassimilate in bamboo leaves are still not clear. In this paper, the leaves of Fargesia yunnanensis from a greenhouse and the wild were respectively used as samples to analyze the anatomical characteristics of fusoid cells and vascular bundles. The results showed that the bamboo leaves from greenhouse got shorter and thinner with fewer layers of palisade parenchyma cells than those from the wild. The volumes of fusoid cells were also increased. Fusoid cells originated from a huge parenchyma cell as testified by the observed nuclei. Several fusoid cells usually formed one cell complex close to the midrib. Crystals were detected in fusoid cells but no pits or plasmodesmata on their walls, suggesting that fusoid cells had the function of regulating water. The presence of fusoid cells determined the major difference between a leaf blade and sheath. There were prominent chloroplasts with simple stroma lamellae in the parenchymatous bundle sheath cells and starch grains were also observed in these chloroplast. Photoassimilates could be transported across vascular bundle sheath via symplasmic pathways for an abundant of plasmodesmata in sheath cell walls, and transported into phloem tube by apoplastic pathway as there were no pits in the walls of companion cells and phloem tubes.
Shuguang Wang; Hui Zhang; Shuyan Lin; Chungyun Hse; Yulong Ding. Anatomical characteristics of fusoid cells and vascular bundles in Fargesia yunnanensis leaves. Journal of Forestry Research 2016, 27, 1237 -1247.
AMA StyleShuguang Wang, Hui Zhang, Shuyan Lin, Chungyun Hse, Yulong Ding. Anatomical characteristics of fusoid cells and vascular bundles in Fargesia yunnanensis leaves. Journal of Forestry Research. 2016; 27 (6):1237-1247.
Chicago/Turabian StyleShuguang Wang; Hui Zhang; Shuyan Lin; Chungyun Hse; Yulong Ding. 2016. "Anatomical characteristics of fusoid cells and vascular bundles in Fargesia yunnanensis leaves." Journal of Forestry Research 27, no. 6: 1237-1247.
Maize (Zea mays L.) is one of the most important food crops throughout the world, and provides oil and proteins to humans and livestock. Kernel oil and protein content in maize are two complex quantitative traits. In order to identify quantitative trait loci (QTL) controlling oil and protein concentration in maize kernels, and to evaluate their genetic effects, QTL analysis was conducted on an F3:4 population derived from a cross between an inbred line with a low oil and protein concentration (Zheng58) and an inbred line with a higher oil and protein concentration (B73). A total of 189 polymorphic simple sequence repeat markers were used to construct a linkage map. Eleven QTLs for kernel oil concentration were detected on nine chromosomes, except for chromosome 9. A single QTL explained 4.6 to 11.1% of the phenotypic variance. Ten QTLs for kernel protein concentration were also detected on nine chromosomes, except for chromosome 9. A single QTL explained 4.2 to 11.4% of the phenotypic variance. Interestingly, novel QTLs for oil concentration (qOIL08-01 and qOIL10-01) and QTLs for protein concentration (qPRO01-01 and qPRO05-01) were specific to the population studied, which could explain 7.1 to 11.1% of the phenotypic variance. These results will provide better understanding of the genetic basis of oil and protein concentrations in maize. The markers closely linked with the QTLs will facilitate breeding of maize varieties with high oil and protein concentrations through molecular marker-assisted selection.
Z. Yang; X. Li; N. Zhang; Y.N. Zhang; H.W. Jiang; J. Gao; B.K. Kuai; Y.L. Ding; X.Q. Huang. Detection of quantitative trait loci for kernel oil and protein concentration in a B73 and Zheng58 maize cross. Genetics and Molecular Research 2016, 15, 1 .
AMA StyleZ. Yang, X. Li, N. Zhang, Y.N. Zhang, H.W. Jiang, J. Gao, B.K. Kuai, Y.L. Ding, X.Q. Huang. Detection of quantitative trait loci for kernel oil and protein concentration in a B73 and Zheng58 maize cross. Genetics and Molecular Research. 2016; 15 (3):1.
Chicago/Turabian StyleZ. Yang; X. Li; N. Zhang; Y.N. Zhang; H.W. Jiang; J. Gao; B.K. Kuai; Y.L. Ding; X.Q. Huang. 2016. "Detection of quantitative trait loci for kernel oil and protein concentration in a B73 and Zheng58 maize cross." Genetics and Molecular Research 15, no. 3: 1.
The relationship between spatial density and size of plants is an important topic in plant ecology. The self‐thinning rule suggests a −3/2 power between average biomass and density or a −1/2 power between stand yield and density. However, the self‐thinning rule based on total leaf area per plant and density of plants has been neglected presumably because of the lack of a method that can accurately estimate the total leaf area per plant. We aimed to find the relationship between spatial density of plants and total leaf area per plant. We also attempted to provide a novel model for accurately describing the leaf shape of bamboos. We proposed a simplified Gielis equation with only two parameters to describe the leaf shape of bamboos one model parameter represented the overall ratio of leaf width to leaf length. Using this method, we compared some leaf parameters (leaf shape, number of leaves per plant, ratio of total leaf weight to aboveground weight per plant, and total leaf area per plant) of four bamboo species of genus Indocalamus Nakai (I. pedalis (Keng) P.C. Keng, I. pumilus Q.H. Dai and C.F. Keng, I. barbatus McClure, and I. victorialis P.C. Keng). We also explored the possible correlation between spatial density and total leaf area per plant using log‐linear regression. We found that the simplified Gielis equation fit the leaf shape of four bamboo species very well. Although all these four species belonged to the same genus, there were still significant differences in leaf shape. Significant differences also existed in leaf area per plant, ratio of leaf weight to aboveground weight per plant, and leaf length. In addition, we found that the total leaf area per plant decreased with increased spatial density. Therefore, we directly demonstrated the self‐thinning rule to improve light interception.
Pei-Jian Shi; Qiang Xu; Hardev S. Sandhu; Johan Gielis; Yu-Long Ding; Hua-Rong Li; Xiao-Bo Dong. Comparison of dwarf bamboos (Indocalamus sp.) leaf parameters to determine relationship between spatial density of plants and total leaf area per plant. Ecology and Evolution 2015, 5, 4578 -4589.
AMA StylePei-Jian Shi, Qiang Xu, Hardev S. Sandhu, Johan Gielis, Yu-Long Ding, Hua-Rong Li, Xiao-Bo Dong. Comparison of dwarf bamboos (Indocalamus sp.) leaf parameters to determine relationship between spatial density of plants and total leaf area per plant. Ecology and Evolution. 2015; 5 (20):4578-4589.
Chicago/Turabian StylePei-Jian Shi; Qiang Xu; Hardev S. Sandhu; Johan Gielis; Yu-Long Ding; Hua-Rong Li; Xiao-Bo Dong. 2015. "Comparison of dwarf bamboos (Indocalamus sp.) leaf parameters to determine relationship between spatial density of plants and total leaf area per plant." Ecology and Evolution 5, no. 20: 4578-4589.