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Buti M, Baldoni E, Formentin E, Milc J, Frugis G, Lo Schiavo F, Genga A, Francia E. A Meta-Analysis of Comparative Transcriptomic Data Reveals a Set of Key Genes Involved in the Tolerance to Abiotic Stresses in Rice. Int J Mol Sci 2019; 20:E5662. [PMID: 31726733 PMCID: PMC6888222 DOI: 10.3390/ijms20225662] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 11/05/2019] [Accepted: 11/10/2019] [Indexed: 12/16/2022] Open
Abstract
Several environmental factors, such as drought, salinity, and extreme temperatures, negatively affect plant growth and development, which leads to yield losses. The tolerance or sensitivity to abiotic stressors are the expression of a complex machinery involving molecular, biochemical, and physiological mechanisms. Here, a meta-analysis on previously published RNA-Seq data was performed to identify the genes conferring tolerance to chilling, osmotic, and salt stresses, by comparing the transcriptomic changes between tolerant and susceptible rice genotypes. Several genes encoding transcription factors (TFs) were identified, suggesting that abiotic stress tolerance involves upstream regulatory pathways. A gene co-expression network defined the metabolic and signalling pathways with a prominent role in the differentiation between tolerance and susceptibility: (i) the regulation of endogenous abscisic acid (ABA) levels, through the modulation of genes that are related to its biosynthesis/catabolism, (ii) the signalling pathways mediated by ABA and jasmonic acid, (iii) the activity of the "Drought and Salt Tolerance" TF, involved in the negative regulation of stomatal closure, and (iv) the regulation of flavonoid biosynthesis by specific MYB TFs. The identified genes represent putative key players for conferring tolerance to a broad range of abiotic stresses in rice; a fine-tuning of their expression seems to be crucial for rice plants to cope with environmental cues.
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Affiliation(s)
- Matteo Buti
- Department of Life Sciences, Centre BIOGEST-SITEIA, University of Modena and Reggio Emilia, Via Amendola 2, 42124 Reggio Emilia, Italy; (M.B.); (J.M.); (E.F.)
- Present address: Department of Agriculture, Food, Environment and Forestry, University of Florence, 50144 Florence, Italy
| | - Elena Baldoni
- National Research Council (CNR), Institute of Agricultural Biology and Biotechnology (IBBA), Via Bassini 15, 20133 Milano, Italy;
- CNR-IBBA, Rome Unit, via Salaria Km. 29,300, 00015 Monterotondo Scalo (Roma), Italy;
| | - Elide Formentin
- Department of Biology, University of Padova, 35131 Padova, Italy; (E.F.); (F.L.S.)
- Botanical Garden, University of Padova, 35123 Padova, Italy
| | - Justyna Milc
- Department of Life Sciences, Centre BIOGEST-SITEIA, University of Modena and Reggio Emilia, Via Amendola 2, 42124 Reggio Emilia, Italy; (M.B.); (J.M.); (E.F.)
| | - Giovanna Frugis
- CNR-IBBA, Rome Unit, via Salaria Km. 29,300, 00015 Monterotondo Scalo (Roma), Italy;
| | - Fiorella Lo Schiavo
- Department of Biology, University of Padova, 35131 Padova, Italy; (E.F.); (F.L.S.)
- Botanical Garden, University of Padova, 35123 Padova, Italy
| | - Annamaria Genga
- National Research Council (CNR), Institute of Agricultural Biology and Biotechnology (IBBA), Via Bassini 15, 20133 Milano, Italy;
| | - Enrico Francia
- Department of Life Sciences, Centre BIOGEST-SITEIA, University of Modena and Reggio Emilia, Via Amendola 2, 42124 Reggio Emilia, Italy; (M.B.); (J.M.); (E.F.)
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He F, Li H, Wang J, Su Y, Wang H, Feng C, Yang Y, Niu M, Liu C, Yin W, Xia X. PeSTZ1, a C2H2-type zinc finger transcription factor from Populus euphratica, enhances freezing tolerance through modulation of ROS scavenging by directly regulating PeAPX2. PLANT BIOTECHNOLOGY JOURNAL 2019; 17:2169-2183. [PMID: 30977939 PMCID: PMC6790368 DOI: 10.1111/pbi.13130] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 03/07/2019] [Accepted: 04/09/2019] [Indexed: 05/04/2023]
Abstract
In the present study, PeSTZ1, a cysteine-2/histidine-2-type zinc finger transcription factor, was isolated from the desert poplar, Populus euphratica, which serves as a model stress adaptation system for trees. PeSTZ1 was preferentially expressed in the young stems and was significantly up-regulated during chilling and freezing treatments. PeSTZ1 was localized to the nucleus and bound specifically to the PeAPX2 promoter. To examine the potential functions of PeSTZ1, we overexpressed it in poplar 84K hybrids (Populus alba × Populus glandulosa), which are known to be stress-sensitive. Upon exposure to freezing stress, transgenic poplars maintained higher photosynthetic activity and dissipated more excess light energy (in the form of heat) than wild-type poplars. Thus, PeSTZ1 functions as a transcription activator to enhance freezing tolerance without sacrificing growth. Under freezing stress, PeSTZ1 acts upstream of ASCORBATE PEROXIDASE2 (PeAPX2) and directly regulates its expression by binding to its promoter. Activated PeAPX2 promotes cytosolic APX that scavenges reactive oxygen species (ROS) under cold stress. PeSTZ1 may operate in parallel with C-REPEAT-BINDING FACTORS to regulate COLD-REGULATED gene expression. Moreover, PeSTZ1 up-regulation reduces malondialdehyde and ROS accumulation by activating the antioxidant system. Taken together, these results suggested that overexpressing PeSTZ1 in 84K poplar enhances freezing tolerance through the modulation of ROS scavenging via the direct regulation of PeAPX2 expression.
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Affiliation(s)
- Fang He
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignNational Engineering Laboratory for Tree BreedingCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBeijingChina
| | - Hui‐Guang Li
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignNational Engineering Laboratory for Tree BreedingCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBeijingChina
| | - Jing‐Jing Wang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignNational Engineering Laboratory for Tree BreedingCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBeijingChina
| | - Yanyan Su
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignNational Engineering Laboratory for Tree BreedingCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBeijingChina
| | - Hou‐Ling Wang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignNational Engineering Laboratory for Tree BreedingCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBeijingChina
| | - Cong‐Hua Feng
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignNational Engineering Laboratory for Tree BreedingCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBeijingChina
| | - Yanli Yang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignNational Engineering Laboratory for Tree BreedingCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBeijingChina
| | - Meng‐Xue Niu
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignNational Engineering Laboratory for Tree BreedingCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBeijingChina
| | - Chao Liu
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignNational Engineering Laboratory for Tree BreedingCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBeijingChina
| | - Weilun Yin
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignNational Engineering Laboratory for Tree BreedingCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBeijingChina
| | - Xinli Xia
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignNational Engineering Laboratory for Tree BreedingCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBeijingChina
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Chen K, Guo T, Li XM, Zhang YM, Yang YB, Ye WW, Dong NQ, Shi CL, Kan Y, Xiang YH, Zhang H, Li YC, Gao JP, Huang X, Zhao Q, Han B, Shan JX, Lin HX. Translational Regulation of Plant Response to High Temperature by a Dual-Function tRNA His Guanylyltransferase in Rice. MOLECULAR PLANT 2019; 12:1123-1142. [PMID: 31075443 DOI: 10.1016/j.molp.2019.04.012] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Revised: 04/11/2019] [Accepted: 04/29/2019] [Indexed: 05/23/2023]
Abstract
As sessile organisms, plants have evolved numerous strategies to acclimate to changes in environmental temperature. However, the molecular basis of this acclimation remains largely unclear. In this study we identified a tRNAHis guanylyltransferase, AET1, which contributes to the modification of pre-tRNAHis and is required for normal growth under high-temperature conditions in rice. Interestingly, AET1 possibly interacts with both RACK1A and eIF3h in the endoplasmic reticulum. Notably, AET1 can directly bind to OsARF mRNAs including the uORFs of OsARF19 and OsARF23, indicating that AET1 is associated with translation regulation. Furthermore, polysome profiling assays suggest that the translational status remains unaffected in the aet1 mutant, but that the translational efficiency of OsARF19 and OsARF23 is reduced; moreover, OsARF23 protein levels are obviously decreased in the aet1 mutant under high temperature, implying that AET1 regulates auxin signaling in response to high temperature. Our findings provide new insights into the molecular mechanisms whereby AET1 regulates the environmental temperature response in rice by playing a dual role in tRNA modification and translational control.
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Affiliation(s)
- Ke Chen
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences and Collaborative Innovation Center of Genetics & Development, Shanghai Institute of Plant Physiology & Ecology, Shanghai Institute for Biological Sciences, Chinese Academic of Sciences, Shanghai 200032, China; University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Tao Guo
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences and Collaborative Innovation Center of Genetics & Development, Shanghai Institute of Plant Physiology & Ecology, Shanghai Institute for Biological Sciences, Chinese Academic of Sciences, Shanghai 200032, China
| | - Xin-Min Li
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences and Collaborative Innovation Center of Genetics & Development, Shanghai Institute of Plant Physiology & Ecology, Shanghai Institute for Biological Sciences, Chinese Academic of Sciences, Shanghai 200032, China
| | - Yi-Min Zhang
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences and Collaborative Innovation Center of Genetics & Development, Shanghai Institute of Plant Physiology & Ecology, Shanghai Institute for Biological Sciences, Chinese Academic of Sciences, Shanghai 200032, China; University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Yi-Bing Yang
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences and Collaborative Innovation Center of Genetics & Development, Shanghai Institute of Plant Physiology & Ecology, Shanghai Institute for Biological Sciences, Chinese Academic of Sciences, Shanghai 200032, China; University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Wang-Wei Ye
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences and Collaborative Innovation Center of Genetics & Development, Shanghai Institute of Plant Physiology & Ecology, Shanghai Institute for Biological Sciences, Chinese Academic of Sciences, Shanghai 200032, China
| | - Nai-Qian Dong
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences and Collaborative Innovation Center of Genetics & Development, Shanghai Institute of Plant Physiology & Ecology, Shanghai Institute for Biological Sciences, Chinese Academic of Sciences, Shanghai 200032, China
| | - Chuan-Lin Shi
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences and Collaborative Innovation Center of Genetics & Development, Shanghai Institute of Plant Physiology & Ecology, Shanghai Institute for Biological Sciences, Chinese Academic of Sciences, Shanghai 200032, China; University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Yi Kan
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences and Collaborative Innovation Center of Genetics & Development, Shanghai Institute of Plant Physiology & Ecology, Shanghai Institute for Biological Sciences, Chinese Academic of Sciences, Shanghai 200032, China; University of the Chinese Academy of Sciences, Beijing 100049, China
| | - You-Huang Xiang
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences and Collaborative Innovation Center of Genetics & Development, Shanghai Institute of Plant Physiology & Ecology, Shanghai Institute for Biological Sciences, Chinese Academic of Sciences, Shanghai 200032, China; University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Hai Zhang
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences and Collaborative Innovation Center of Genetics & Development, Shanghai Institute of Plant Physiology & Ecology, Shanghai Institute for Biological Sciences, Chinese Academic of Sciences, Shanghai 200032, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Ya-Chao Li
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences and Collaborative Innovation Center of Genetics & Development, Shanghai Institute of Plant Physiology & Ecology, Shanghai Institute for Biological Sciences, Chinese Academic of Sciences, Shanghai 200032, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Ji-Ping Gao
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences and Collaborative Innovation Center of Genetics & Development, Shanghai Institute of Plant Physiology & Ecology, Shanghai Institute for Biological Sciences, Chinese Academic of Sciences, Shanghai 200032, China
| | - Xuehui Huang
- College of Life and Environmental Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Qiang Zhao
- National Center for Gene Research, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200233, China
| | - Bin Han
- University of the Chinese Academy of Sciences, Beijing 100049, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China; National Center for Gene Research, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200233, China
| | - Jun-Xiang Shan
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences and Collaborative Innovation Center of Genetics & Development, Shanghai Institute of Plant Physiology & Ecology, Shanghai Institute for Biological Sciences, Chinese Academic of Sciences, Shanghai 200032, China.
| | - Hong-Xuan Lin
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences and Collaborative Innovation Center of Genetics & Development, Shanghai Institute of Plant Physiology & Ecology, Shanghai Institute for Biological Sciences, Chinese Academic of Sciences, Shanghai 200032, China; University of the Chinese Academy of Sciences, Beijing 100049, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China.
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Jin T, Sun Y, Zhao R, Shan Z, Gai J, Li Y. Overexpression of Peroxidase Gene GsPRX9 Confers Salt Tolerance in Soybean. Int J Mol Sci 2019; 20:E3745. [PMID: 31370221 PMCID: PMC6695911 DOI: 10.3390/ijms20153745] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 07/20/2019] [Accepted: 07/24/2019] [Indexed: 12/15/2022] Open
Abstract
Peroxidases play prominent roles in antioxidant responses and stress tolerance in plants; however, their functions in soybean tolerance to salt stress remain unclear. Here, we investigated the role of a peroxidase gene from the wild soybean (Glycine soja), GsPRX9, in soybean tolerance to salt stress. GsPRX9 gene expression was induced by salt treatment in the roots of both salt-tolerant and -sensitive soybean varieties, and its relative expression level in the roots of salt-tolerant soybean varieties showed a significantly higher increase than in salt-sensitive varieties after NaCl treatment, suggesting its possible role in soybean response to salt stress. GsPRX9-overexpressing yeast (strains of INVSc1 and G19) grew better than the control under salt and H2O2 stress, and GsPRX9-overexpressing soybean composite plants showed higher shoot fresh weight and leaf relative water content than control plants after NaCl treatment. Moreover, the GsPRX9-overexpressing soybean hairy roots had higher root fresh weight, primary root length, activities of peroxidase and superoxide dismutase, and glutathione level, but lower H2O2 content than those in control roots under salt stress. These findings suggest that the overexpression of the GsPRX9 gene enhanced the salt tolerance and antioxidant response in soybean. This study would provide new insights into the role of peroxidase in plant tolerance to salt stress.
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Affiliation(s)
- Ting Jin
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, National Center for Soybean Improvement, Key Laboratory for Biology and Genetic Improvement of Soybeans (General, Ministry of Agriculture), Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing 210095, China
| | - Yangyang Sun
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, National Center for Soybean Improvement, Key Laboratory for Biology and Genetic Improvement of Soybeans (General, Ministry of Agriculture), Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing 210095, China
| | - Ranran Zhao
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, National Center for Soybean Improvement, Key Laboratory for Biology and Genetic Improvement of Soybeans (General, Ministry of Agriculture), Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhong Shan
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, National Center for Soybean Improvement, Key Laboratory for Biology and Genetic Improvement of Soybeans (General, Ministry of Agriculture), Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing 210095, China
| | - Junyi Gai
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, National Center for Soybean Improvement, Key Laboratory for Biology and Genetic Improvement of Soybeans (General, Ministry of Agriculture), Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing 210095, China
| | - Yan Li
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, National Center for Soybean Improvement, Key Laboratory for Biology and Genetic Improvement of Soybeans (General, Ministry of Agriculture), Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing 210095, China.
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Dissecting a heterotic gene through GradedPool-Seq mapping informs a rice-improvement strategy. Nat Commun 2019; 10:2982. [PMID: 31278256 PMCID: PMC6611799 DOI: 10.1038/s41467-019-11017-y] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 06/04/2019] [Indexed: 12/31/2022] Open
Abstract
Hybrid rice breeding for exploiting hybrid vigor, heterosis, has greatly increased grain yield. However, the heterosis-related genes associated with rice grain production remain largely unknown, partly because comprehensive mapping of heterosis-related traits is still labor-intensive and time-consuming. Here, we present a quantitative trait locus (QTL) mapping method, GradedPool-Seq, for rapidly mapping QTLs by whole-genome sequencing of graded-pool samples from F2 progeny via bulked-segregant analysis. We implement this method and map-based cloning to dissect the heterotic QTL GW3p6 from the female line. We then generate the near isogenic line NIL-FH676::GW3p6 by introgressing the GW3p6 allele from the female line Guangzhan63-4S into the male inbred line Fuhui676. The NIL-FH676::GW3p6 exhibits grain yield highly increased compared to Fuhui676. This study demonstrates that it may be possible to achieve a high level of grain production in inbred rice lines without the need to construct hybrids. Developing hybrid rice cultivars requires time consuming random crossing. Here, the authors develop a new next generation sequencing-based quantitative trait locus mapping method to dissect heterotic gene OsMADS1 and demonstrate the feasibility of pyramiding two genes to achieve large heterotic effect.
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Li X, Zhang Q, Yang X, Han J, Zhu Z. OsANN3, a calcium-dependent lipid binding annexin is a positive regulator of ABA-dependent stress tolerance in rice. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2019; 284:212-220. [PMID: 31084874 DOI: 10.1016/j.plantsci.2019.04.019] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 04/02/2019] [Accepted: 04/23/2019] [Indexed: 05/20/2023]
Abstract
Annexin is a multigene family that plays critical roles in plant stress responses and various cellular processes. Here, we reported the cloning and functional characterization of a novel rice annexin protein, OsANN3. We found that expression of OsANN3 was induced by polyethylene glycol (PEG) and abscisic acid (ABA) treatments. Overexpression of OsANN3 in rice significantly increased survival rates under drought stress, while knocking down OsANN3 resulted in sensitivity to drought. Meanwhile, OsANN3 overexpression showed enhanced sensitivity to exogenous ABA. Together with its Ca2+ and phospholipid binding activity, we proposed that when plants were subjected to drought stress, OsANN3 might mediate Ca2+ influx by binding to phospholipid to activate ABA signaling pathways. In addition, overexpression OsANN3 showed better growth under drought stress comparing to wild type, such as longer root length and more stomata closure for reducing water loss by regulating ABA-dependent stress response pathways.
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Affiliation(s)
- Xuefei Li
- Hebei Key Laboratory of Molecular and Cellular Biology, Key Laboratory of Molecular and Cellular Biology of the Ministry of Education, College of Life Science, Hebei Normal University, Hebei Collaboration Innovation Center for Cell Signaling, Shijiazhuang, Hebei, 050024, China
| | - Qian Zhang
- Hebei Key Laboratory of Molecular and Cellular Biology, Key Laboratory of Molecular and Cellular Biology of the Ministry of Education, College of Life Science, Hebei Normal University, Hebei Collaboration Innovation Center for Cell Signaling, Shijiazhuang, Hebei, 050024, China
| | - Xue Yang
- Hebei Key Laboratory of Molecular and Cellular Biology, Key Laboratory of Molecular and Cellular Biology of the Ministry of Education, College of Life Science, Hebei Normal University, Hebei Collaboration Innovation Center for Cell Signaling, Shijiazhuang, Hebei, 050024, China
| | - Jianbo Han
- Hebei Key Laboratory of Molecular and Cellular Biology, Key Laboratory of Molecular and Cellular Biology of the Ministry of Education, College of Life Science, Hebei Normal University, Hebei Collaboration Innovation Center for Cell Signaling, Shijiazhuang, Hebei, 050024, China
| | - Zhengge Zhu
- Hebei Key Laboratory of Molecular and Cellular Biology, Key Laboratory of Molecular and Cellular Biology of the Ministry of Education, College of Life Science, Hebei Normal University, Hebei Collaboration Innovation Center for Cell Signaling, Shijiazhuang, Hebei, 050024, China.
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Transcriptome Analyses Provide Novel Insights into Heat Stress Responses in Chieh-Qua ( Benincasa hispida Cogn. var. Chieh-Qua How). Int J Mol Sci 2019; 20:ijms20040883. [PMID: 30781658 PMCID: PMC6413116 DOI: 10.3390/ijms20040883] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 02/11/2019] [Accepted: 02/12/2019] [Indexed: 12/02/2022] Open
Abstract
Temperature rising caused by global warming has imposed significant negative effects on crop qualities and yields. To get the well-known molecular mechanism upon the higher temperature, we carefully analyzed the RNA sequencing-based transcriptomic responses of two contrasting chieh-qua genotypes: A39 (heat-tolerant) and H5 (heat-sensitive). In this study, twelve cDNA libraries generated from A39 and H5 were performed with a transcriptome assay under normal and heat stress conditions, respectively. A total of 8705 differentially expressed genes (DEGs) were detected under normal conditions (3676 up-regulated and 5029 down-regulated) and 1505 genes under heat stress (914 up-regulated and 591 down-regulated), respectively. A significant positive correlation between RNA-Seq data and qRT-PCR results was identified. DEGs related to heat shock proteins (HSPs), ubiquitin-protein ligase, transcriptional factors, and pentatricopeptide repeat-containing proteins were significantly changed after heat stress. Several genes, which encoded HSPs (CL2311.Contig3 and CL6612.Contig2), cytochrome P450 (CL4517.Contig4 and CL683.Contig7), and bHLH TFs (CL914.Contig2 and CL8321.Contig1) were specifically induced after four days of heat stress. DEGs detected in our study between these two contrasting cultivars would provide a novel basis for isolating useful candidate genes of heat stress responses in chieh-qua.
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Xia H, Luo Z, Xiong J, Ma X, Lou Q, Wei H, Qiu J, Yang H, Liu G, Fan L, Chen L, Luo L. Bi-directional Selection in Upland Rice Leads to Its Adaptive Differentiation from Lowland Rice in Drought Resistance and Productivity. MOLECULAR PLANT 2019; 12:170-184. [PMID: 30584948 DOI: 10.1016/j.molp.2018.12.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Revised: 12/13/2018] [Accepted: 12/16/2018] [Indexed: 06/09/2023]
Abstract
Drought resistance is required in rice breeding to address the challenge of frequent droughts. However, the evolutionary mechanism of rice drought resistance is not fully understood. We investigated the genetic differentiation between upland and lowland rice domesticated in agro-ecosystems with contrasting water-soil conditions using genome-wide SNPs. We estimated morphological differences among upland and lowland rice in drought resistance and productivity through common garden experiments. Upland rice had better drought resistance but poorer productivity. The negative correlations between traits of drought resistance and productivity are attributed to the underlying genetic trade-offs through tight linkages (e.g., DCA1 and OsCesA7) or pleiotropic effects (e.g., LAX1). The genetic trade-offs are common and greatly shape the evolution of drought resistance in upland rice. In genomic regions associated with both productivity and drought resistance, signs of balancing selection were detected in upland rice, while signs of directional selection were detected in lowland rice, potentially contributing to their adaptive differentiation. Signs of balancing selection in upland rice resulted from bi-directional selection during its domestication in drought-prone upland agro-ecosystems. Using genome-wide association analysis, we identified several valuable quantitative trait loci associated with drought resistance, for which highly differentiated genes should be considered candidates. Bi-directional selection breaking tight linkages by accumulating recombination events would be applicable in breeding water-saving and drought-resistance rice.
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Affiliation(s)
- Hui Xia
- Shanghai Agrobiological Gene Center, Shanghai, China
| | - Zhi Luo
- Shanghai Agrobiological Gene Center, Shanghai, China; College of Plant Sciences & Technology, Huazhong Agricultural University, Wuhan, China
| | - Jie Xiong
- Shanghai Agrobiological Gene Center, Shanghai, China; College of Plant Sciences & Technology, Huazhong Agricultural University, Wuhan, China
| | - Xiaosong Ma
- Shanghai Agrobiological Gene Center, Shanghai, China
| | - Qiaojun Lou
- Shanghai Agrobiological Gene Center, Shanghai, China
| | - Haibin Wei
- Shanghai Agrobiological Gene Center, Shanghai, China
| | - Jie Qiu
- Institute of Crop Science & Institute of Bioinformatics, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Hua Yang
- Shanghai Agrobiological Gene Center, Shanghai, China
| | - Guolan Liu
- Shanghai Agrobiological Gene Center, Shanghai, China
| | - Longjiang Fan
- Institute of Crop Science & Institute of Bioinformatics, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Liang Chen
- Shanghai Agrobiological Gene Center, Shanghai, China
| | - Lijun Luo
- Shanghai Agrobiological Gene Center, Shanghai, China; College of Plant Sciences & Technology, Huazhong Agricultural University, Wuhan, China.
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Zhang Z, Liu H, Sun C, Ma Q, Bu H, Chong K, Xu Y. A C 2H 2 zinc-finger protein OsZFP213 interacts with OsMAPK3 to enhance salt tolerance in rice. JOURNAL OF PLANT PHYSIOLOGY 2018; 229:100-110. [PMID: 30055519 DOI: 10.1016/j.jplph.2018.07.003] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 07/16/2018] [Accepted: 07/16/2018] [Indexed: 05/21/2023]
Abstract
Improvement of salt tolerance is one of the major targets in rice breeding. Here, we report that the zinc-finger protein (ZFP) OsZFP213 functions in enhancing salt tolerance in rice. OsZFP213 is localized in the nucleus and has transactivation activity. Transgenic rice overexpressing OsZFP213 showed enhanced salt tolerance compared with wild type and OsZFP213 RNAi plants. Furthermore, OsZFP213 overexpression plants showed higher transcription levels of antioxidant system genes and higher catalytic activity of scavenging enzymes of reactive oxygen, such as superoxide dismutase (SOD), ascorbate peroxidase (APX), catalase (CAT), and glutathione reductase (GR), and a lower level of ROS accumulation than that in wild type and OsZFP213 RNAi plants under salt treatment. Yeast two-hybrid, pull-down, and BiFC analysis showed that OsMAPK3 is a direct partner of OsZFP213, and this interaction enhanced the transactivation activity of OsZFP213. Taken together, these results suggest that OsZFP213 cooperates with OsMAPK3 in the regulation of rice salt stress tolerance by enhancing the ability of scavenging reactive oxygen.
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Affiliation(s)
- Zeyong Zhang
- The Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Huanhuan Liu
- The Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Ce Sun
- College of Life Sciences, Northwest University, Xi'an, 710069, China
| | - Qibin Ma
- The Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Huaiyu Bu
- College of Life Sciences, Northwest University, Xi'an, 710069, China
| | - Kang Chong
- The Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Yunyuan Xu
- The Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China.
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Early selection of bZIP73 facilitated adaptation of japonica rice to cold climates. Nat Commun 2018; 9:3302. [PMID: 30120236 PMCID: PMC6098049 DOI: 10.1038/s41467-018-05753-w] [Citation(s) in RCA: 120] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Accepted: 06/08/2018] [Indexed: 12/17/2022] Open
Abstract
Cold stress is a major factor limiting production and geographic distribution of rice (Oryza sativa). Although the growth range of japonica subspecies has expanded northward compared to modern wild rice (O. rufipogon), the molecular basis of the adaptation remains unclear. Here we report bZIP73, a bZIP transcription factor-coding gene with only one functional polymorphism (+511 G>A) between the two subspecies japonica and indica, may have facilitated japonica adaptation to cold climates. We show the japonica version of bZIP73 (bZIP73Jap) interacts with bZIP71 and modulates ABA levels and ROS homeostasis. Evolutionary and population genetic analyses suggest bZIP73 has undergone balancing selection; the bZIP73Jap allele has firstly selected from standing variations in wild rice and likely facilitated cold climate adaptation during initial japonica domestication, while the indica allele bZIP73Ind was subsequently selected for reasons that remain unclear. Our findings reveal early selection of bZIP73Jap may have facilitated climate adaptation of primitive rice germplasms. Japonica rice can grow further north than wild or indica rice and is more tolerant of cold climates. Here, the authors show that bZIP73 likely underwent selection in the early phase of rice domestication to facilitate cold tolerance in japonica by modulating ABA and ROS homeostasis.
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He F, Wang H, Li H, Su Y, Li S, Yang Y, Feng C, Yin W, Xia X. PeCHYR1, a ubiquitin E3 ligase from Populus euphratica, enhances drought tolerance via ABA-induced stomatal closure by ROS production in Populus. PLANT BIOTECHNOLOGY JOURNAL 2018; 16:1514-1528. [PMID: 29406575 PMCID: PMC6041450 DOI: 10.1111/pbi.12893] [Citation(s) in RCA: 116] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 12/28/2017] [Accepted: 01/28/2018] [Indexed: 05/11/2023]
Abstract
Drought, a primary abiotic stress, seriously affects plant growth and productivity. Stomata play a vital role in regulating gas exchange and drought adaptation. However, limited knowledge exists of the molecular mechanisms underlying stomatal movement in trees. Here, PeCHYR1, a ubiquitin E3 ligase, was isolated from Populus euphratica, a model of stress adaptation in forest trees. PeCHYR1 was preferentially expressed in young leaves and was significantly induced by ABA (abscisic acid) and dehydration treatments. To study the potential biological functions of PeCHYR1, transgenic poplar 84K (Populus alba × Populus glandulosa) plants overexpressing PeCHYR1 were generated. PeCHYR1 overexpression significantly enhanced H2 O2 production and reduced stomatal aperture. Transgenic lines exhibited increased sensitivity to exogenous ABA and greater drought tolerance than that of WT (wild-type) controls. Moreover, up-regulation of PeCHYR1 promoted stomatal closure and decreased transpiration, resulting in strongly elevated WUE (water use efficiency). When exposed to drought stress, transgenic poplar maintained higher photosynthetic activity and biomass accumulation. Taken together, these results suggest that PeCHYR1 plays a crucial role in enhancing drought tolerance via ABA-induced stomatal closure caused by hydrogen peroxide (H2 O2 ) production in transgenic poplar plants.
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Affiliation(s)
- Fang He
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignNational Engineering Laboratory for Tree BreedingCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBeijingChina
| | - Hou‐Ling Wang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignNational Engineering Laboratory for Tree BreedingCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBeijingChina
| | - Hui‐Guang Li
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignNational Engineering Laboratory for Tree BreedingCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBeijingChina
| | - Yanyan Su
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignNational Engineering Laboratory for Tree BreedingCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBeijingChina
| | - Shuang Li
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignNational Engineering Laboratory for Tree BreedingCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBeijingChina
| | - Yanli Yang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignNational Engineering Laboratory for Tree BreedingCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBeijingChina
| | - Cong‐Hua Feng
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignNational Engineering Laboratory for Tree BreedingCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBeijingChina
| | - Weilun Yin
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignNational Engineering Laboratory for Tree BreedingCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBeijingChina
| | - Xinli Xia
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignNational Engineering Laboratory for Tree BreedingCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBeijingChina
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Wang M, Jiang B, Peng Q, Liu W, He X, Liang Z, Lin Y. Transcriptome Analyses in Different Cucumber Cultivars Provide Novel Insights into Drought Stress Responses. Int J Mol Sci 2018; 19:ijms19072067. [PMID: 30013000 PMCID: PMC6073345 DOI: 10.3390/ijms19072067] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 06/28/2018] [Accepted: 07/10/2018] [Indexed: 12/05/2022] Open
Abstract
Drought stress is one of the most serious threats to cucumber quality and yield. To gain a good understanding of the molecular mechanism upon water deficiency, we compared and analyzed the RNA sequencing-based transcriptomic responses of two contrasting cucumber genotypes, L-9 (drought-tolerant) and A-16 (drought-sensitive). In our present study, combining the analysis of phenotype, twelve samples of cucumber were carried out a transcriptomic profile by RNA-Seq under normal and water-deficiency conditions, respectively. A total of 1008 transcripts were differentially expressed under normal conditions (466 up-regulated and 542 down-regulated) and 2265 transcripts under drought stress (979 up-regulated and 1286 down-regulated). The significant positive correlation between RNA sequencing data and a qRT-PCR analysis supported the results found. Differentially expressed genes (DEGs) involved in metabolic pathway and biosynthesis of secondary metabolism were significantly changed after drought stress. Several genes, which were related to sucrose biosynthesis (Csa3G784370 and Csa3G149890) and abscisic acid (ABA) signal transduction (Csa4M361820 and Csa6M382950), were specifically induced after 4 days of drought stress. DEGs between the two contrasting cultivars identified in our study provide a novel insight into isolating helpful candidate genes for drought tolerance in cucumber.
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Affiliation(s)
- Min Wang
- Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China.
- Guangdong Key Laboratory for New Technology Research of Vegetables, Guangzhou 510640, China.
| | - Biao Jiang
- Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China.
- Guangdong Key Laboratory for New Technology Research of Vegetables, Guangzhou 510640, China.
| | - Qingwu Peng
- Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China.
| | - Wenrui Liu
- Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China.
| | - Xiaoming He
- Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China.
| | - Zhaojun Liang
- Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China.
| | - Yu'e Lin
- Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China.
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63
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Liu J, Sun X, Xu F, Zhang Y, Zhang Q, Miao R, Zhang J, Liang J, Xu W. Suppression of OsMDHAR4 enhances heat tolerance by mediating H 2O 2-induced stomatal closure in rice plants. RICE (NEW YORK, N.Y.) 2018; 11:38. [PMID: 29951703 PMCID: PMC6021276 DOI: 10.1186/s12284-018-0230-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 06/19/2018] [Indexed: 05/07/2023]
Abstract
BACKGROUND Monodehydroascorbate reductase (MDAR or MDHAR), which is responsible for growth, development and stress response in plants, is a key enzyme in the maintenance of the ascorbate acid (AsA) pool through the AsA-glutathione (AsA-GSH) cycle. High temperature affects a broad spectrum of cellular components and metabolism including AsA-GSH cycle in plants. In rice, however, the detailed roles of OsMDHAR4 in resistance against heat stress remains unclear. RESULTS Here, we report that OsMDHAR4 protein was localized to the chloroplasts. OsMDHAR4 expression was detected in all tissues surveyed and peaked in leaf blade. OsMDHAR4 was responsive to multiple stresses and was relatively strongly induced by heat treatment. In comparison with wild type, the osmdhar4 mutant exhibited improved tolerance to heat stress, whereas OsMDHAR4 overexpression lines exhibited enhanced sensitivity to heat stress. Moreover, we found that suppression of OsMDHAR4 promoted stomatal closure and hydrogen peroxide accumulation, and overexpression of OsMDHAR4 increased stomatal opening and decreased hydrogen peroxide content in rice leaves. CONCLUSIONS Taken together, these results indicated that OsMDHAR4 negatively regulates tolerance to heat stress by mediating H2O2-induced stomatal closure in rice.
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Affiliation(s)
- Jianping Liu
- Center for Plant Water-use and Nutrition Regulation and College of Life Sciences, Joint International Research Laboratory of Water and Nutrient in Crop, Fujian Agriculture and Forestry University, Jinshan Fuzhou, 350002, China
| | - Xinjiao Sun
- Center for Plant Water-use and Nutrition Regulation and College of Life Sciences, Joint International Research Laboratory of Water and Nutrient in Crop, Fujian Agriculture and Forestry University, Jinshan Fuzhou, 350002, China
| | - Feiyun Xu
- Center for Plant Water-use and Nutrition Regulation and College of Life Sciences, Joint International Research Laboratory of Water and Nutrient in Crop, Fujian Agriculture and Forestry University, Jinshan Fuzhou, 350002, China
| | - Yingjiao Zhang
- Center for Plant Water-use and Nutrition Regulation and College of Life Sciences, Joint International Research Laboratory of Water and Nutrient in Crop, Fujian Agriculture and Forestry University, Jinshan Fuzhou, 350002, China
| | - Qian Zhang
- Center for Plant Water-use and Nutrition Regulation and College of Life Sciences, Joint International Research Laboratory of Water and Nutrient in Crop, Fujian Agriculture and Forestry University, Jinshan Fuzhou, 350002, China
| | - Rui Miao
- Center for Plant Water-use and Nutrition Regulation and College of Life Sciences, Joint International Research Laboratory of Water and Nutrient in Crop, Fujian Agriculture and Forestry University, Jinshan Fuzhou, 350002, China
| | - Jianhua Zhang
- Department of Biology, Hong Kong Baptist University, Hong Kong, China.
| | - Jiansheng Liang
- Department of Biology, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Weifeng Xu
- Center for Plant Water-use and Nutrition Regulation and College of Life Sciences, Joint International Research Laboratory of Water and Nutrient in Crop, Fujian Agriculture and Forestry University, Jinshan Fuzhou, 350002, China.
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64
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Yao L, Cheng X, Gu Z, Huang W, Li S, Wang L, Wang YF, Xu P, Ma H, Ge X. The AWPM-19 Family Protein OsPM1 Mediates Abscisic Acid Influx and Drought Response in Rice. THE PLANT CELL 2018; 30:1258-1276. [PMID: 29716991 PMCID: PMC6048790 DOI: 10.1105/tpc.17.00770] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 04/04/2018] [Accepted: 04/30/2018] [Indexed: 05/03/2023]
Abstract
Abscisic acid (ABA) regulates plant stress responses and development. However, how the ABA signal is transmitted in response to stresses remains largely unclear, especially in monocots. In this study, we found that rice (Oryza sativa) OsPM1 (PLASMA MEMBRANE PROTEIN1), encoded by a gene of AWPM-19 like family, mediates ABA influx through the plasma membrane. OsPM1 is predominantly expressed in vascular tissues, guard cells, and mature embryos. Phenotypic analysis of overexpression, RNA interference (RNAi), and knockout (KO) lines showed that OsPM1 is involved in drought responses and seed germination regulation. 3H-(±)ABA transport activity and fluorescence resonance energy transfer assays both demonstrated that OsPM1 facilitates ABA uptake into cells. The physiological isomer of ABA, (+)-ABA, is the preferred substrate of OsPM1. Higher ABA accumulation and faster stomatal closure in response to ABA treatment were observed in the overexpression lines compared with the wild-type control. Many ABA-responsive genes were upregulated more in the OsPM1-overexpression lines but less in the RNAi lines compared with wild-type plants. Further investigation revealed that OsPM1 expression is regulated by the AREB/ABF family transcription factor OsbZIP46. Our results thus revealed that OsPM1 is an ABA influx carrier that plays an important role in drought responses.
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Affiliation(s)
- Lingya Yao
- State Key Laboratory of Genetic Engineering, Department of Biochemistry and Molecular Biology, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Xuan Cheng
- State Key Laboratory of Genetic Engineering, Department of Biochemistry and Molecular Biology, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Zongying Gu
- State Key Laboratory of Genetic Engineering, Department of Biochemistry and Molecular Biology, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Wei Huang
- State Key Laboratory of Genetic Engineering, Department of Biochemistry and Molecular Biology, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Shou Li
- State Key Laboratory of Genetic Engineering, Department of Biochemistry and Molecular Biology, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Linbo Wang
- State Key Laboratory of Genetic Engineering, Department of Biochemistry and Molecular Biology, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Yong-Fei Wang
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Ping Xu
- School of Biological Sciences, University of East Anglia, Norwich NR47TJ, United Kingdom
| | - Hong Ma
- State Key Laboratory of Genetic Engineering, Department of Biochemistry and Molecular Biology, School of Life Sciences, Fudan University, Shanghai 200438, China
- Department of Biology and the Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Xiaochun Ge
- State Key Laboratory of Genetic Engineering, Department of Biochemistry and Molecular Biology, School of Life Sciences, Fudan University, Shanghai 200438, China
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Li L, Ye T, Guan Y, Lv M, Xie C, Xu J, Gao X, Zhu J, Cai L, Xu Z. Genome-wide identification and analyses of the rice OsDUF936 family. BIOTECHNOL BIOTEC EQ 2017. [DOI: 10.1080/13102818.2017.1413421] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Affiliation(s)
- Lihua Li
- Key Laboratory of Southwest Crop Genetic Resources and Improvement, Rice Institute of Sichuan Agricultural University, Ministry of Education, Chengdu, P. R. China
| | - Taozhi Ye
- Key Laboratory of Southwest Crop Genetic Resources and Improvement, Rice Institute of Sichuan Agricultural University, Ministry of Education, Chengdu, P. R. China
| | - Ying Guan
- Key Laboratory of Southwest Crop Genetic Resources and Improvement, Rice Institute of Sichuan Agricultural University, Ministry of Education, Chengdu, P. R. China
| | - Miaomiao Lv
- Key Laboratory of Southwest Crop Genetic Resources and Improvement, Rice Institute of Sichuan Agricultural University, Ministry of Education, Chengdu, P. R. China
| | - Chen Xie
- Department of Biology, College of Chemistry and Life Science, Chengdu Normal University, Chengdu, P. R. China
| | - Jinghong Xu
- Crop Research Institute, Academy of Agricultural and Forestry Sciences, Chengdu, P. R. China
| | - Xiaoling Gao
- Key Laboratory of Southwest Crop Genetic Resources and Improvement, Rice Institute of Sichuan Agricultural University, Ministry of Education, Chengdu, P. R. China
| | - Jianqing Zhu
- Key Laboratory of Southwest Crop Genetic Resources and Improvement, Rice Institute of Sichuan Agricultural University, Ministry of Education, Chengdu, P. R. China
| | - Liangjun Cai
- Crop Research Institute, Academy of Agricultural and Forestry Sciences, Chengdu, P. R. China
| | - Zhengjun Xu
- Key Laboratory of Southwest Crop Genetic Resources and Improvement, Rice Institute of Sichuan Agricultural University, Ministry of Education, Chengdu, P. R. China
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66
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Hu Y, Wu Q, Peng Z, Sprague SA, Wang W, Park J, Akhunov E, Jagadish KSV, Nakata PA, Cheng N, Hirschi KD, White FF, Park S. Silencing of OsGRXS17 in rice improves drought stress tolerance by modulating ROS accumulation and stomatal closure. Sci Rep 2017; 7:15950. [PMID: 29162892 PMCID: PMC5698295 DOI: 10.1038/s41598-017-16230-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 11/09/2017] [Indexed: 12/02/2022] Open
Abstract
Glutaredoxins (GRXs) modulate redox-dependent signaling pathways and have emerged as key mediators in plant responses to environmental stimuli. Here we report that RNAi-mediated suppression of Oryza sativa GRXS17 (OsGRXS17) improved drought tolerance in rice. Gene expression studies showed that OsGRXS17 was present throughout the plant and that transcript abundance increased in response to drought stress and abscisic acid (ABA) treatment. Localization studies, utilizing GFP-OsGRXS17 fusion proteins, indicated that OsGRXS17 resides in both the cytoplasm and the nuclear envelope. Under drought stress conditions, rice plants with reduced OsGRXS17 expression showed lower rates of water loss and stomatal conductance, higher relative water content, and enhanced survival compared to wild-type controls. Further characterization of the OsGRXS17 down-regulated plants revealed an elevation in H2O2 production within the guard cells, increased sensitivity to ABA, and a reduction in stomatal apertures. The findings demonstrate a critical link between OsGRXS17, the modulation of guard cell H2O2 concentrations, and stomatal closure, expanding our understanding of the mechanisms governing plant responses to drought.
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Affiliation(s)
- Ying Hu
- Department of Horticulture and Natural Resources, Kansas State University, Manhattan, KS, 66506, USA.,Department of Plant Pathology, Kansas State University, Manhattan, KS, 66506, USA
| | - Qingyu Wu
- Department of Horticulture and Natural Resources, Kansas State University, Manhattan, KS, 66506, USA.,Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, 11724, USA
| | - Zhao Peng
- Department of Plant Pathology, Kansas State University, Manhattan, KS, 66506, USA.,Department of Plant Pathology, University of Florida, Gainesville, FL, 32611, USA
| | - Stuart A Sprague
- Department of Horticulture and Natural Resources, Kansas State University, Manhattan, KS, 66506, USA
| | - Wei Wang
- Department of Plant Pathology, Kansas State University, Manhattan, KS, 66506, USA
| | - Jungeun Park
- Department of Horticulture and Natural Resources, Kansas State University, Manhattan, KS, 66506, USA
| | - Eduard Akhunov
- Department of Plant Pathology, Kansas State University, Manhattan, KS, 66506, USA
| | | | - Paul A Nakata
- United States Department of Agriculture/Agricultural Research Service, Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Ninghui Cheng
- United States Department of Agriculture/Agricultural Research Service, Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Kendal D Hirschi
- United States Department of Agriculture/Agricultural Research Service, Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Frank F White
- Department of Plant Pathology, Kansas State University, Manhattan, KS, 66506, USA. .,Department of Plant Pathology, University of Florida, Gainesville, FL, 32611, USA.
| | - Sunghun Park
- Department of Horticulture and Natural Resources, Kansas State University, Manhattan, KS, 66506, USA.
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He X, Li L, Xu H, Xi J, Cao X, Xu H, Rong S, Dong Y, Wang C, Chen R, Xu J, Gao X, Xu Z. A rice jacalin-related mannose-binding lectin gene, OsJRL, enhances Escherichia coli viability under high salinity stress and improves salinity tolerance of rice. PLANT BIOLOGY (STUTTGART, GERMANY) 2017; 19:257-267. [PMID: 27718311 DOI: 10.1111/plb.12514] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2016] [Accepted: 10/05/2016] [Indexed: 05/19/2023]
Abstract
Salinity, which is one of the most common abiotic stresses, may severely affect plant productivity and quality. Although plant lectins are thought to play important roles in plant defense signaling during pathogen attack, little is known about the contribution of plant lectins to stress resistance. We cloned and functionally characterized a rice jacalin-related mannose-binding lectin gene, OsJRL, from rice 'Nipponbare'. We analyzed the expression patterns of OsJRL under various stress conditions in rice. Furthermore, we overexpressed OsJRL in Escherichia coli and rice. The cDNA of OsJRL contained a 438 bp open reading frame, which encodes a polypeptide of 145 amino acids. OsJRL was localized in the nucleus and cytoplasm. Real time PCR analyses revealed that OsJRL expression showed tissue specificity in rice and was upregulated under diverse stresses, namely salt, drought, cold, heat and abscisic acid treatments. Overexpression of OsJRL in E. coli enhanced cell viability and dramatically improved tolerance of high salinity. Overexpression of OsJRL in rice also enhanced salinity tolerance and increased the expression levels of a number of stress-related genes, including three LEA (late embryogenesis abundant proteins) genes (OsLEA19a, OsLEA23 and OsLEA24), three Na+ transporter genes (OsHKT1;3, OsHKT1;4 and OsHKT1;5) and two DREB genes (OsDREB1A and OsDREB2B). Based on these results, we suggest that OsJRL plays an important role in cell protection and stress signal transduction.
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Affiliation(s)
- X He
- Key Laboratory of Southwest Crop Genetic Resources and Improvement, Ministry of Education, Rice Institute of Sichuan Agricultural University, Chengdu, China
| | - L Li
- Key Laboratory of Southwest Crop Genetic Resources and Improvement, Ministry of Education, Rice Institute of Sichuan Agricultural University, Chengdu, China
| | - H Xu
- Key Laboratory of Southwest Crop Genetic Resources and Improvement, Ministry of Education, Rice Institute of Sichuan Agricultural University, Chengdu, China
| | - J Xi
- Biogas Institute of Ministry of Agriculture, Chengdu, China
| | - X Cao
- Key Laboratory of Southwest Crop Genetic Resources and Improvement, Ministry of Education, Rice Institute of Sichuan Agricultural University, Chengdu, China
| | - H Xu
- Key Laboratory of Southwest Crop Genetic Resources and Improvement, Ministry of Education, Rice Institute of Sichuan Agricultural University, Chengdu, China
| | - S Rong
- Key Laboratory of Southwest Crop Genetic Resources and Improvement, Ministry of Education, Rice Institute of Sichuan Agricultural University, Chengdu, China
| | - Y Dong
- Key Laboratory of Southwest Crop Genetic Resources and Improvement, Ministry of Education, Rice Institute of Sichuan Agricultural University, Chengdu, China
| | - C Wang
- Meishan Agricultural Bureau, Meishan, China
| | - R Chen
- Key Laboratory of Southwest Crop Genetic Resources and Improvement, Ministry of Education, Rice Institute of Sichuan Agricultural University, Chengdu, China
| | - J Xu
- Crop Research Institute, Chengdu Academy of Agricultural and Forestry Sciences, Chengdu, China
| | - X Gao
- Key Laboratory of Southwest Crop Genetic Resources and Improvement, Ministry of Education, Rice Institute of Sichuan Agricultural University, Chengdu, China
| | - Z Xu
- Key Laboratory of Southwest Crop Genetic Resources and Improvement, Ministry of Education, Rice Institute of Sichuan Agricultural University, Chengdu, China
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68
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Wang Z, Wang F, Hong Y, Huang J, Shi H, Zhu JK. Two Chloroplast Proteins Suppress Drought Resistance by Affecting ROS Production in Guard Cells. PLANT PHYSIOLOGY 2016; 172:2491-2503. [PMID: 27744298 PMCID: PMC5129706 DOI: 10.1104/pp.16.00889] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 10/13/2016] [Indexed: 05/06/2023]
Abstract
Chloroplast as the site for photosynthesis is an essential organelle in plants, but little is known about its role in stomatal regulation and drought resistance. In this study, we show that two chloroplastic proteins essential for thylakoid formation negatively regulate drought resistance in Arabidopsis (Arabidopsis thaliana). By screening a mutant pool with T-DNA insertions in nuclear genes encoding chloroplastic proteins, we identified an HCF106 knockdown mutant exhibiting increased resistance to drought stress. The hcf106 mutant displayed elevated levels of reactive oxygen species (ROS) in guard cells, improved stomatal closure, and reduced water loss under drought conditions. The HCF106 protein was found to physically interact with THF1, a previously identified chloroplastic protein crucial for thylakoid formation. The thf1 mutant phenotypically resembled the hcf106 mutant and displayed more ROS accumulation in guard cells, increased stomatal closure, reduced water loss, and drought resistant phenotypes compared to the wild type. The hcf106thf1 double mutant behaved similarly as the thf1 single mutant. These results suggest that HCF106 and THF1 form a complex to modulate chloroplast function and that the complex is important for ROS production in guard cells and stomatal control in response to environmental stresses. Our results also suggest that modulating chloroplastic proteins could be a way for improving drought resistance in crops.
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Affiliation(s)
- Zhen Wang
- Shanghai Center for Plant Stress Biology and Center for Excellence in Molecular Plant Sciences (Z.W., F.W., Y.H., J.-K.Z.), University of Chinese Academy of Sciences (Z.W., F.W., Y.H.), Chinese Academy of Sciences, Shanghai 200032, China
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China (J.H.)
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409 (H.S.); and
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, Indiana 47907 (J.-K.Z.)
| | - Fuxing Wang
- Shanghai Center for Plant Stress Biology and Center for Excellence in Molecular Plant Sciences (Z.W., F.W., Y.H., J.-K.Z.), University of Chinese Academy of Sciences (Z.W., F.W., Y.H.), Chinese Academy of Sciences, Shanghai 200032, China
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China (J.H.)
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409 (H.S.); and
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, Indiana 47907 (J.-K.Z.)
| | - Yechun Hong
- Shanghai Center for Plant Stress Biology and Center for Excellence in Molecular Plant Sciences (Z.W., F.W., Y.H., J.-K.Z.), University of Chinese Academy of Sciences (Z.W., F.W., Y.H.), Chinese Academy of Sciences, Shanghai 200032, China
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China (J.H.)
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409 (H.S.); and
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, Indiana 47907 (J.-K.Z.)
| | - Jirong Huang
- Shanghai Center for Plant Stress Biology and Center for Excellence in Molecular Plant Sciences (Z.W., F.W., Y.H., J.-K.Z.), University of Chinese Academy of Sciences (Z.W., F.W., Y.H.), Chinese Academy of Sciences, Shanghai 200032, China
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China (J.H.)
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409 (H.S.); and
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, Indiana 47907 (J.-K.Z.)
| | - Huazhong Shi
- Shanghai Center for Plant Stress Biology and Center for Excellence in Molecular Plant Sciences (Z.W., F.W., Y.H., J.-K.Z.), University of Chinese Academy of Sciences (Z.W., F.W., Y.H.), Chinese Academy of Sciences, Shanghai 200032, China;
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China (J.H.);
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409 (H.S.); and
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, Indiana 47907 (J.-K.Z.)
| | - Jian-Kang Zhu
- Shanghai Center for Plant Stress Biology and Center for Excellence in Molecular Plant Sciences (Z.W., F.W., Y.H., J.-K.Z.), University of Chinese Academy of Sciences (Z.W., F.W., Y.H.), Chinese Academy of Sciences, Shanghai 200032, China;
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China (J.H.);
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409 (H.S.); and
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, Indiana 47907 (J.-K.Z.)
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Cen H, Ye W, Liu Y, Li D, Wang K, Zhang W. Overexpression of a Chimeric Gene, OsDST-SRDX, Improved Salt Tolerance of Perennial Ryegrass. Sci Rep 2016; 6:27320. [PMID: 27251327 PMCID: PMC4890315 DOI: 10.1038/srep27320] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 05/18/2016] [Indexed: 11/22/2022] Open
Abstract
The Drought and Salt Tolerance gene (DST) encodes a C2H2 zinc finger transcription factor, which negatively regulates salt tolerance in rice (Oryza sativa). Phylogenetic analysis of six homologues of DST genes in different plant species revealed that DST genes were conserved evolutionarily. Here, the rice DST gene was linked to an SRDX domain for gene expression repression based on the Chimeric REpressor gene-Silencing Technology (CRES-T) to make a chimeric gene (OsDST-SRDX) construct and introduced into perennial ryegrass by Agrobacterium-mediated transformation. Integration and expression of the OsDST-SRDX in transgenic plants were tested by PCR and RT-PCR, respectively. Transgenic lines overexpressing the OsDST-SRDX fusion gene showed obvious phenotypic differences and clear resistance to salt-shock and to continuous salt stresses compared to non-transgenic plants. Physiological analyses including relative leaf water content, electrolyte leakage, proline content, malondialdehyde (MDA) content, H2O2 content and sodium and potassium accumulation indicated that the OsDST-SRDX fusion gene enhanced salt tolerance in transgenic perennial ryegrass by altering a wide range of physiological responses. To our best knowledge this study is the first report of utilizing Chimeric Repressor gene-Silencing Technology (CRES-T) in turfgrass and forage species for salt-tolerance improvement.
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Affiliation(s)
- Huifang Cen
- Department of Grassland Science, China Agricultural University, Beijing, 100193, P. R. China
| | - Wenxing Ye
- Department of Grassland Science, China Agricultural University, Beijing, 100193, P. R. China
| | - Yanrong Liu
- Department of Grassland Science, China Agricultural University, Beijing, 100193, P. R. China
| | - Dayong Li
- State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, P. R. China
| | - Kexin Wang
- Department of Grassland Science, China Agricultural University, Beijing, 100193, P. R. China
| | - Wanjun Zhang
- Department of Grassland Science, China Agricultural University, Beijing, 100193, P. R. China.,National Energy R&D Center for Biomass (NECB), China Agricultural University, Beijing, 100193, P. R. China
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