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Zhao Y, Yin T, Ran X, Liu W, Shen Y, Guo H, Peng Y, Zhang C, Ding Y, Tang S. Stimulus-responsive proteins involved in multi-process regulation of storage substance accumulation during rice grain filling under elevated temperature. BMC PLANT BIOLOGY 2023; 23:547. [PMID: 37936114 PMCID: PMC10631114 DOI: 10.1186/s12870-023-04563-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 10/26/2023] [Indexed: 11/09/2023]
Abstract
BACKGROUND The intensified global warming during grain filling deteriorated rice quality, in particular increasing the frequency of chalky grains which markedly impact market value. The formation of rice quality is a complex process influenced by multiple genes, proteins and physiological metabolic processes. Proteins responsive to stimulus can adjust the ability of plants to respond to unfavorable environments, which may be an important protein involved in the regulation of quality formation under elevated temperature. However, relatively few studies have hindered our further understanding of rice quality formation under elevated temperature. RESULTS We conducted the actual field elevated temperature experiment and performed proteomic analysis of rice grains at the early stage of grain filling. Starting with the response to stimulus in GO annotation, 22 key proteins responsive to stimulus were identified in the regulation of grain filling and response to elevated temperature. Among the proteins responsive to stimulus, during grain filling, an increased abundance of signal transduction and other stress response proteins, a decreased abundance of reactive oxygen species-related proteins, and an increased accumulation of storage substance metabolism proteins consistently contributed to grain filling. However, the abundance of probable indole-3-acetic acid-amido synthetase GH3.4, probable indole-3-acetic acid-amido synthetase GH3.8 and CBL-interacting protein kinase 9 belonged to signal transduction were inhibited under elevated temperature. In the reactive oxygen species-related protein, elevated temperature increased the accumulation of cationic peroxidase SPC4 and persulfide dioxygenase ETHE1 homolog to maintain normal physiological homeostasis. The increased abundance of alpha-amylase isozyme 3E and seed allergy protein RA5 was related to the storage substance metabolism, which regulated starch and protein accumulation under elevated temperature. CONCLUSION Auxin synthesis and calcium signal associated with signal transduction, other stress responses, protein transport and modification, and reactive oxygen species-related proteins may be key proteins responsive to stimulus in response to elevated temperature. Alpha-amylase isozyme 3E and seed allergy protein RA5 may be the key proteins to regulate grain storage substance accumulation and further influence quality under elevated temperature. This study enriched the regulatory factors involved in the response to elevated temperature and provided a new idea for a better understanding of grain response to temperature.
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Affiliation(s)
- Yufei Zhao
- College of Agronomy, Nanjing Agricultural University, 210095, Nanjing, People's Republic of China
| | - Tongyang Yin
- College of Agronomy, Nanjing Agricultural University, 210095, Nanjing, People's Republic of China
| | - Xuan Ran
- College of Agronomy, Nanjing Agricultural University, 210095, Nanjing, People's Republic of China
| | - Wenzhe Liu
- College of Agronomy, Nanjing Agricultural University, 210095, Nanjing, People's Republic of China
| | - Yingying Shen
- College of Agronomy, Nanjing Agricultural University, 210095, Nanjing, People's Republic of China
| | - Hao Guo
- College of Agronomy, Nanjing Agricultural University, 210095, Nanjing, People's Republic of China
| | - Yuxuan Peng
- College of Agronomy, Nanjing Agricultural University, 210095, Nanjing, People's Republic of China
| | - Chen Zhang
- College of Agronomy, Nanjing Agricultural University, 210095, Nanjing, People's Republic of China
| | - Yanfeng Ding
- College of Agronomy, Nanjing Agricultural University, 210095, Nanjing, People's Republic of China
- Jiangsu Collaborative Innovation Center for Modern Crop Production, 210095, Nanjing, People's Republic of China
| | - She Tang
- College of Agronomy, Nanjing Agricultural University, 210095, Nanjing, People's Republic of China.
- Jiangsu Collaborative Innovation Center for Modern Crop Production, 210095, Nanjing, People's Republic of China.
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Payne D, Li Y, Govindan G, Kumar A, Thomas J, Addo-Quaye CA, Pereira A, Sunkar R. High Daytime Temperature Responsive MicroRNA Profiles in Developing Grains of Rice Varieties with Contrasting Chalkiness. Int J Mol Sci 2023; 24:11631. [PMID: 37511395 PMCID: PMC10380806 DOI: 10.3390/ijms241411631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/10/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
High temperature impairs starch biosynthesis in developing rice grains and thereby increases chalkiness, affecting the grain quality. Genome encoded microRNAs (miRNAs) fine-tune target transcript abundances in a spatio-temporal specific manner, and this mode of gene regulation is critical for a myriad of developmental processes as well as stress responses. However, the role of miRNAs in maintaining rice grain quality/chalkiness during high daytime temperature (HDT) stress is relatively unknown. To uncover the role of miRNAs in this process, we used five contrasting rice genotypes (low chalky lines Cyp, Ben, and KB and high chalky lines LaGrue and NB) and compared the miRNA profiles in the R6 stage caryopsis samples from plants subjected to prolonged HDT (from the onset of fertilization through R6 stage of caryopsis development). Our small RNA analysis has identified approximately 744 miRNAs that can be grouped into 291 families. Of these, 186 miRNAs belonging to 103 families are differentially regulated under HDT. Only two miRNAs, Osa-miR444f and Osa-miR1866-5p, were upregulated in all genotypes, implying that the regulations greatly varied between the genotypes. Furthermore, not even a single miRNA was commonly up/down regulated specifically in the three tolerant genotypes. However, three miRNAs (Osa-miR1866-3p, Osa-miR5150-3p and canH-miR9774a,b-3p) were commonly upregulated and onemiRNA (Osa-miR393b-5p) was commonly downregulated specifically in the sensitive genotypes (LaGrue and NB). These observations suggest that few similarities exist within the low chalky or high chalky genotypes, possibly due to high genetic variation. Among the five genotypes used, Cypress and LaGrue are genetically closely related, but exhibit contrasting chalkiness under HDT, and thus, a comparison between them is most relevant. This comparison revealed a general tendency for Cypress to display miRNA regulations that could decrease chalkiness under HDT compared with LaGrue. This study suggests that miRNAs could play an important role in maintaining grain quality in HDT-stressed rice.
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Affiliation(s)
- David Payne
- Department of Biochemistry and Molecular Biology, Oklahoma State University, Stillwater, OK 74078, USA
| | - Yongfang Li
- Department of Biochemistry and Molecular Biology, Oklahoma State University, Stillwater, OK 74078, USA
| | - Ganesan Govindan
- Department of Biochemistry and Molecular Biology, Oklahoma State University, Stillwater, OK 74078, USA
| | - Anuj Kumar
- Department of Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, AR 72701, USA
| | - Julie Thomas
- Department of Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, AR 72701, USA
| | - Charles A Addo-Quaye
- Department of Computer Science and Cybersecurity, Metropolitan State University, Saint Paul, MN 55106, USA
| | - Andy Pereira
- Department of Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, AR 72701, USA
| | - Ramanjulu Sunkar
- Department of Biochemistry and Molecular Biology, Oklahoma State University, Stillwater, OK 74078, USA
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Liu YH, Tseng TS, Wu CR, Cho ST, Kuo CH, Huang XJ, Cheng JY, Hsu KH, Lin KF, Liu CC, Yeh CH. Rice OsHsp16.9A interacts with OsHsp101 to confer thermotolerance. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 330:111634. [PMID: 36775071 DOI: 10.1016/j.plantsci.2023.111634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 12/30/2022] [Accepted: 02/08/2023] [Indexed: 06/18/2023]
Abstract
Class I small heat shock proteins (CI sHSPs), OsHsp16.9A and OsHsp18.0, share 74% identity in amino acid sequences and accumulate in response to heat shock treatments. Individual rice transformants overexpressing OsHsp16.9A and OsHsp18.0 exhibit distinct thermoprotection/thermotolerance modes. Under high temperature stress, OsHsp16.9A-overexpressing lines showed higher seed germination rate, seedling survival, and pollen germination than wild-type controls, while OsHsp18.0 overexpression provided higher thermoprotection/thermotolerance for seedling survival. To elucidate the functional roles of OsHsp16.9A, mass spectrometry was used to identify OsHsp16.9A-interacting proteins. OsHsp101 was consistently identified in the OsHsp16.9A protein complex in several mass spectrometry analyses of seed proteins from OsHsp16.9A-overexpressing lines. Both OsHsp16.9A and OsHsp101 proteins accumulated during similar developmental stages of rice seeds and formed a heat-stable complex under high temperature treatments in in vitro assays. Co-localization of OsHsp16.9A and OsHsp101 was observed via ratiometric bimolecular fluorescence complementation analyses. Amino acid mutation studies revealed that OsHsp16.9A glutamate residue 74 and amino acid residues 23-36 were essential for OsHsp16.9A-OsHsp101 interaction. Moreover, overexpressing OsHsp16.9A in OsHsp101 knockdown mutants did not increase the seed germination rate under heat stress, which further confirmed the functional roles of OsHsp16.9A-OsHsp101 interaction in conferring thermotolerance to rice plants.
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Affiliation(s)
- Yi-Hsin Liu
- Department of Life Sciences, National Central University, Taoyuan, Taiwan
| | - Tong-Seung Tseng
- Department of BioAgricultural Science, National Chiayi University, Chiayi, Taiwan
| | - Ching-Rong Wu
- Department of Life Sciences, National Central University, Taoyuan, Taiwan
| | - Shu-Ting Cho
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei, Taiwan
| | - Chih-Horng Kuo
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei, Taiwan
| | - Xin-Jie Huang
- Department of Life Sciences, National Central University, Taoyuan, Taiwan
| | - Jung-Yi Cheng
- Department of Life Sciences, National Central University, Taoyuan, Taiwan
| | - Kuo-Hsuan Hsu
- Department of Life Sciences, National Central University, Taoyuan, Taiwan
| | - Kung-Fu Lin
- Department of Life Sciences, National Central University, Taoyuan, Taiwan
| | - Chia-Chin Liu
- Department of Life Sciences, Tzu Chi University, Hualien, Taiwan
| | - Ching-Hui Yeh
- Department of Life Sciences, National Central University, Taoyuan, Taiwan.
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4
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Singh BK, Venkadesan S, Ramkumar MK, Shanmugavadivel PS, Dutta B, Prakash C, Pal M, Solanke AU, Rai A, Singh NK, Mohapatra T, Sevanthi AM. Meta-Analysis of Microarray Data and Their Utility in Dissecting the Mapped QTLs for Heat Acclimation in Rice. PLANTS (BASEL, SWITZERLAND) 2023; 12:1697. [PMID: 37111920 PMCID: PMC10142300 DOI: 10.3390/plants12081697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 02/07/2023] [Accepted: 02/10/2023] [Indexed: 06/19/2023]
Abstract
In the current global warming scenario, it is imperative to develop crops with improved heat tolerance or acclimation, for which knowledge of major heat stress-tolerant genes or genomic regions is a prerequisite. Though several quantitative trait loci (QTLs) for heat tolerance have been mapped in rice, candidate genes from these QTLs have not been reported yet. The meta-analysis of microarray datasets for heat stress in rice can give us a better genomic resource for the dissection of QTLs and the identification of major candidate genes for heat stress tolerance. In the present study, a database, RiceMetaSys-H, comprising 4227 heat stress-responsive genes (HRGs), was created using seven publicly available microarray datasets. This included in-house-generated microarray datasets of Nagina 22 (N22) and IR64 subjected to 8 days of heat stress. The database has provisions for searching the HRGs through genotypes, growth stages, tissues, and physical intervals in the genome, as well as Locus IDs, which provide complete information on the HRGs with their annotations and fold changes, along with the experimental material used for the analysis. The up-regulation of genes involved in hormone biosynthesis and signalling, sugar metabolism, carbon fixation, and the ROS pathway were found to be the key mechanisms of enhanced heat tolerance. Integrating variant and expression analysis, the database was used for the dissection of the major effect of QTLs on chromosomes 4, 5, and 9 from the IR64/N22 mapping population. Out of the 18, 54, and 62 genes in these three QTLs, 5, 15, and 12 genes harboured non-synonymous substitutions. Fifty-seven interacting genes of the selected QTLs were identified by a network analysis of the HRGs in the QTL regions. Variant analysis revealed that the proportion of unique amino acid substitutions (between N22/IR64) in the QTL-specific genes was much higher than the common substitutions, i.e., 2.58:0.88 (2.93-fold), compared to the network genes at a 0.88:0.67 (1.313-fold) ratio. An expression analysis of these 89 genes showed 43 DEGs between IR64/N22. By integrating the expression profiles, allelic variations, and the database, four robust candidates (LOC_Os05g43870, LOC_Os09g27830, LOC_Os09g27650, andLOC_Os09g28000) for enhanced heat stress tolerance were identified. The database thus developed in rice can be used in breeding to combat high-temperature stress.
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Affiliation(s)
- Bablee Kumari Singh
- ICAR-National Institute for Plant Biotechnology, Pusa Campus, New Delhi 110012, India
- PG School, ICAR-Indian Agricultural Research Institute, Pusa Campus, New Delhi 110012, India
| | | | - M. K. Ramkumar
- ICAR-National Institute for Plant Biotechnology, Pusa Campus, New Delhi 110012, India
| | - P. S. Shanmugavadivel
- ICAR-National Institute for Plant Biotechnology, Pusa Campus, New Delhi 110012, India
- Division of Plant Biotechnology, ICAR-Indian Institute of Pulses Research, Kanpur 208024, India
| | - Bipratip Dutta
- ICAR-National Institute for Plant Biotechnology, Pusa Campus, New Delhi 110012, India
| | - Chandra Prakash
- ICAR-National Institute for Plant Biotechnology, Pusa Campus, New Delhi 110012, India
| | - Madan Pal
- Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India
| | - Amolkumar U. Solanke
- ICAR-National Institute for Plant Biotechnology, Pusa Campus, New Delhi 110012, India
| | - Anil Rai
- ICAR-Indian Agricultural Statistics Research Institute, Pusa Campus, New Delhi 110012, India
| | - Nagendra Kumar Singh
- ICAR-National Institute for Plant Biotechnology, Pusa Campus, New Delhi 110012, India
| | - Trilochan Mohapatra
- Indian Council of Agricultural Research, Krishi Bhawan, New Delhi 110001, India
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5
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Yan Y, Li C, Liu Z, Zhuang JJ, Kong JR, Yang ZK, Yu J, Shah Alam M, Ruan CC, Zhang HM, Xu JH. A new demethylase gene, OsDML4, is involved in high temperature-increased grain chalkiness in rice. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:7273-7284. [PMID: 36073837 DOI: 10.1093/jxb/erac367] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 09/07/2022] [Indexed: 06/15/2023]
Abstract
High temperature (HT) can affect the accumulation of seed storage materials and cause adverse effects on the yield and quality of rice. DNA methylation plays an important role in plant growth and development. Here, we identified a new demethylase gene OsDML4 and discovered its function in cytosine demethylation to affect endosperm formation. Loss of function of OsDML4 induced chalky endosperm only under HT and dramatically reduced the transcription and accumulation of glutelins and 16 kDa prolamin. The expression of two transcription factor genes RISBZ1 and RPBF was significantly decreased in the osdml4 mutants, which caused adverse effects on the formation of protein bodies (PBs) with greatly decreased PB-II number, and incomplete and abnormally shaped PB-IIs. Whole-genome bisulfite sequencing analysis of seeds at 15 d after pollination revealed much higher global methylation levels of CG, CHG, and CHH contexts in the osdml4 mutants compared with the wild type. Moreover, the RISBZ1 promoter was hypermethylated but the RPBF promoter was almost unchanged under HT. No significant difference was detected between the wild type and osdml4 mutants under normal temperature. Our study demonstrated a novel OsDML4-mediated DNA methylation involved in the formation of chalky endosperm only under HT and provided a new perspective in regulating endosperm development and the accumulation of seed storage proteins in rice.
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Affiliation(s)
- Yan Yan
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou 310058, China
- Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Chao Li
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou 310058, China
- Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University, Shandong 276034, China
| | - Zhen Liu
- Hainan Institute, Zhejiang University, Sanya, Hainan 572000, China
| | - Jun-Jie Zhuang
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou 310058, China
| | - Jia-Rui Kong
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou 310058, China
| | - Zhen-Kun Yang
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou 310058, China
| | - Jie Yu
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou 310058, China
- Hainan Institute, Zhejiang University, Sanya, Hainan 572000, China
| | - Mohammad Shah Alam
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou 310058, China
| | - Cheng-Cheng Ruan
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou 310058, China
| | - Heng-Mu Zhang
- Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Jian-Hong Xu
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou 310058, China
- Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University, Shandong 276034, China
- Hainan Institute, Zhejiang University, Sanya, Hainan 572000, China
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6
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Monden Y, Tanaka H, Funakoshi R, Sunayama S, Yabe K, Kimoto E, Matsumiya K, Yoshikawa T. Comprehensive survey of transposon mPing insertion sites and transcriptome analysis for identifying candidate genes controlling high protein content of rice. FRONTIERS IN PLANT SCIENCE 2022; 13:969582. [PMID: 36119631 PMCID: PMC9479144 DOI: 10.3389/fpls.2022.969582] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 08/05/2022] [Indexed: 06/15/2023]
Abstract
Rice is the most important crop species in the world, being staple food of more than 80% of people in Asia. About 80% of rice grain is composed of carbohydrates (starch), with its protein content as low as 7-8%. Therefore, increasing the protein content of rice offers way to create a stable protein source that contributes to improving malnutrition and health problems worldwide. We detected two rice lines harboring a significantly higher protein content (namely, HP5-7 and HP7-5) in the EG4 population. The EG4 strain of rice is a unique material in that the transposon mPing has high transpositional activity and high copy numbers under natural conditions. Other research indicated that mPing is abundant in the gene-rich euchromatic regions, suggesting that mPing amplification should create new allelic variants, novel regulatory networks, and phenotypic changes in the EG4 population. Here, we aimed to identify the candidate genes and/or mPing insertion sites causing high protein content by comprehensively identifying the mPing insertion sites and carrying out an RNA-seq-based transcriptome analysis. By utilizing the next-generation sequencing (NGS)-based methods, ca. 570 mPing insertion sites were identified per line in the EG4 population. Our results also indicated that mPing apparently has a preference for inserting itself in the region near a gene, with 38 genes in total found to contain the mPing insertion in the HP lines, of which 21 and 17 genes were specific to HP5-7 and HP7-5, respectively. Transcriptome analysis revealed that most of the genes related to protein synthesis (encoding glutelin, prolamin, and globulin) were up-regulated in HP lines relative to the control line. Interestingly, the differentially expressed gene (DEG) analysis revealed that the expression levels of many genes related to photosynthesis decreased in both HP lines; this suggests the amount of starch may have decreased, indirectly contributing to the increased protein content. The high-protein lines studied here are expected to contribute to the development of high protein-content rice by introducing valuable phenotypic traits such as high and stable yield, disease resistance, and abundant nutrients.
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Affiliation(s)
- Yuki Monden
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Hirona Tanaka
- Faculty of Agriculture, Okayama University, Okayama, Japan
| | | | | | - Kiyotaka Yabe
- Faculty of Agriculture, Kyoto University, Kyoto, Japan
| | - Eri Kimoto
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
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Zhou H, Wang Y, Zhang Y, Xiao Y, Liu X, Deng H, Lu X, Tang W, Zhang G. Comparative Analysis of Heat-Tolerant and Heat-Susceptible Rice Highlights the Role of OsNCED1 Gene in Heat Stress Tolerance. PLANTS 2022; 11:plants11081062. [PMID: 35448790 PMCID: PMC9026844 DOI: 10.3390/plants11081062] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/27/2022] [Accepted: 03/28/2022] [Indexed: 11/16/2022]
Abstract
To elucidate the mechanism underlying the response of rice to heat stress (HS), the transcriptome profile of panicles was comparatively analyzed between the heat-tolerant line 252 (HTL252) and heat-susceptible line 082 (HSL082), two rice recombinant inbred lines (RILs). Our differentially expressed gene (DEG) analysis revealed that the DEGs are mainly associated with protein binding, catalysis, stress response, and cellular process. The MapMan analysis demonstrated that the heat-responsive (HR) genes for heat shock proteins, transcription factors, development, and phytohormones are specifically induced in HTL252 under HS. Based on the DEG analysis, the key gene OsNCED1 (Os02g0704000), which was induced under HS, was selected for further functional validation. Moreover, 9-cis-epoxycarotenoid dioxygenase (NCED) is a key rate-limiting enzyme in the ABA biosynthetic pathway. Overexpression of OsNCED1 improved the HS tolerance of rice at the heading and flowering stage. OsNCED1-overexpression plants exhibited significant increases in pollen viability, seed setting rate, superoxide dismutase (SOD) and peroxidase (POD) activities, while significantly lower electrolyte leakage and malondialdehyde (MDA) content relative to the wild type (WT). These results suggested that OsNCED1 overexpression can improve the heat tolerance of rice by enhancing the antioxidant capacity. Overall, this study lays a foundation for revealing the molecular regulatory mechanism underlying the response of rice to prolonged HS.
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Affiliation(s)
- Huang Zhou
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China; (H.Z.); (Y.W.); (Y.Z.); (Y.X.); (X.L.); (H.D.); (X.L.)
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Hunan Agricultural University, Changsha 410128, China
| | - Yingfeng Wang
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China; (H.Z.); (Y.W.); (Y.Z.); (Y.X.); (X.L.); (H.D.); (X.L.)
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Hunan Agricultural University, Changsha 410128, China
| | - Yijin Zhang
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China; (H.Z.); (Y.W.); (Y.Z.); (Y.X.); (X.L.); (H.D.); (X.L.)
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Hunan Agricultural University, Changsha 410128, China
| | - Yunhua Xiao
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China; (H.Z.); (Y.W.); (Y.Z.); (Y.X.); (X.L.); (H.D.); (X.L.)
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Hunan Agricultural University, Changsha 410128, China
| | - Xiong Liu
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China; (H.Z.); (Y.W.); (Y.Z.); (Y.X.); (X.L.); (H.D.); (X.L.)
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Hunan Agricultural University, Changsha 410128, China
| | - Huabing Deng
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China; (H.Z.); (Y.W.); (Y.Z.); (Y.X.); (X.L.); (H.D.); (X.L.)
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Hunan Agricultural University, Changsha 410128, China
| | - Xuedan Lu
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China; (H.Z.); (Y.W.); (Y.Z.); (Y.X.); (X.L.); (H.D.); (X.L.)
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Hunan Agricultural University, Changsha 410128, China
| | - Wenbang Tang
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China; (H.Z.); (Y.W.); (Y.Z.); (Y.X.); (X.L.); (H.D.); (X.L.)
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Centre, Changsha 410125, China
- Correspondence: (W.T.); (G.Z.)
| | - Guilian Zhang
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China; (H.Z.); (Y.W.); (Y.Z.); (Y.X.); (X.L.); (H.D.); (X.L.)
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Hunan Agricultural University, Changsha 410128, China
- Correspondence: (W.T.); (G.Z.)
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8
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Xie Q, Xu J, Huang K, Su Y, Tong J, Huang Z, Huang C, Wei M, Lin W, Xiao L. Dynamic formation and transcriptional regulation mediated by phytohormones during chalkiness formation in rice. BMC PLANT BIOLOGY 2021; 21:308. [PMID: 34193032 PMCID: PMC8247166 DOI: 10.1186/s12870-021-03109-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 06/21/2021] [Indexed: 05/02/2023]
Abstract
BACKGROUND Rice (Oryza sativa L.) Chalkiness, the opaque part in the kernel endosperm formed by loosely piled starch and protein bodies. Chalkiness is a complex quantitative trait regulated by multiple genes and various environmental factors. Phytohormones play important roles in the regulation of chalkiness formation but the underlying molecular mechanism is still unclear at present. RESULTS In this research, Xiangzaoxian24 (X24, pure line of indica rice with high-chalkiness) and its origin parents Xiangzaoxian11 (X11, female parent, pure line of indica rice with high-chalkiness) and Xiangzaoxian7 (X7, male parent, pure line of indica rice with low-chalkiness) were used as materials. The phenotype, physiological and biochemical traits combined with transcriptome analysis were conducted to illustrate the dynamic process and transcriptional regulation of rice chalkiness formation. Impressively, phytohormonal contents and multiple phytohormonal signals were significantly different in chalky caryopsis, suggesting the involvement of phytohormones, particularly ABA and auxin, in the regulation of rice chalkiness formation, through the interaction of multiple transcription factors and their downstream regulators. CONCLUSION These results indicated that chalkiness formation is a dynamic process associated with multiple genes, forming a complex regulatory network in which phytohormones play important roles. These results provided informative clues for illustrating the regulatory mechanisms of chalkiness formation in rice.
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Affiliation(s)
- Qin Xie
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, 410128, China
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, China
| | - Jinke Xu
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, 410128, China
| | - Ke Huang
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, 410128, China
| | - Yi Su
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, 410128, China
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, China
| | - Jianhua Tong
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, 410128, China
| | - Zhigang Huang
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, 410128, China
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, China
| | - Chao Huang
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, 410128, China
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, China
| | - Manlin Wei
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, 410128, China
| | - Wanhuang Lin
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, 410128, China.
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, China.
| | - Langtao Xiao
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, 410128, China.
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, China.
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9
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Tappiban P, Ying Y, Xu F, Bao J. Proteomics and Post-Translational Modifications of Starch Biosynthesis-Related Proteins in Developing Seeds of Rice. Int J Mol Sci 2021; 22:5901. [PMID: 34072759 PMCID: PMC8199009 DOI: 10.3390/ijms22115901] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/26/2021] [Accepted: 05/28/2021] [Indexed: 12/25/2022] Open
Abstract
Rice (Oryza sativa L.) is a foremost staple food for approximately half the world's population. The components of rice starch, amylose, and amylopectin are synthesized by a series of enzymes, which are responsible for rice starch properties and functionality, and then affect rice cooking and eating quality. Recently, proteomics technology has been applied to the establishment of the differentially expressed starch biosynthesis-related proteins and the identification of posttranslational modifications (PTMs) target starch biosynthesis proteins as well. It is necessary to summarize the recent studies in proteomics and PTMs in rice endosperm to deepen our understanding of starch biosynthesis protein expression and regulation, which will provide useful information to rice breeding programs and industrial starch applications. The review provides a comprehensive summary of proteins and PTMs involved in starch biosynthesis based on proteomic studies of rice developing seeds. Starch biosynthesis proteins in rice seeds were differentially expressed in the developing seeds at different developmental stages. All the proteins involving in starch biosynthesis were identified using proteomics methods. Most starch biosynthesis-related proteins are basically increased at 6-20 days after flowering (DAF) and decreased upon the high-temperature conditions. A total of 10, 14, 2, 17, and 7 starch biosynthesis related proteins were identified to be targeted by phosphorylation, lysine acetylation, succinylation, lysine 2-hydroxyisobutyrylation, and malonylation, respectively. The phosphoglucomutase is commonly targeted by five PTMs types. Research on the function of phosphorylation in multiple enzyme complex formation in endosperm starch biosynthesis is underway, while the functions of other PTMs in starch biosynthesis are necessary to be conducted in the near future.
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Affiliation(s)
- Piengtawan Tappiban
- Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang Province, Institute of Nuclear Agricultural Sciences, College of Agriculture and Biotechnology, Zhejiang University, Zijingang Campus, Hangzhou 310058, China; (P.T.); (Y.Y.); (F.X.)
| | - Yining Ying
- Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang Province, Institute of Nuclear Agricultural Sciences, College of Agriculture and Biotechnology, Zhejiang University, Zijingang Campus, Hangzhou 310058, China; (P.T.); (Y.Y.); (F.X.)
| | - Feifei Xu
- Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang Province, Institute of Nuclear Agricultural Sciences, College of Agriculture and Biotechnology, Zhejiang University, Zijingang Campus, Hangzhou 310058, China; (P.T.); (Y.Y.); (F.X.)
| | - Jinsong Bao
- Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang Province, Institute of Nuclear Agricultural Sciences, College of Agriculture and Biotechnology, Zhejiang University, Zijingang Campus, Hangzhou 310058, China; (P.T.); (Y.Y.); (F.X.)
- Hainan Institute of Zhejiang University, Yazhou Bay Science and Technology City, Yazhou District, Sanya 572025, China
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10
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Adegoke TV, Wang Y, Chen L, Wang H, Liu W, Liu X, Cheng YC, Tong X, Ying J, Zhang J. Posttranslational Modification of Waxy to Genetically Improve Starch Quality in Rice Grain. Int J Mol Sci 2021; 22:4845. [PMID: 34063649 PMCID: PMC8124582 DOI: 10.3390/ijms22094845] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/26/2021] [Accepted: 04/29/2021] [Indexed: 01/07/2023] Open
Abstract
The waxy (Wx) gene, encoding the granule-bound starch synthase (GBSS), is responsible for amylose biosynthesis and plays a crucial role in defining eating and cooking quality. The waxy locus controls both the non-waxy and waxy rice phenotypes. Rice starch can be altered into various forms by either reducing or increasing the amylose content, depending on consumer preference and region. Low-amylose rice is preferred by consumers because of its softness and sticky appearance. A better way of improving crops other than downregulation and overexpression of a gene or genes may be achieved through the posttranslational modification of sites or regulatory enzymes that regulate them because of their significance. The impact of posttranslational GBSSI modifications on extra-long unit chains (ELCs) remains largely unknown. Numerous studies have been reported on different crops, such as wheat, maize, and barley, but the rice starch granule proteome remains largely unknown. There is a need to improve the yield of low-amylose rice by employing posttranslational modification of Wx, since the market demand is increasing every day in order to meet the market demand for low-amylose rice in the regional area that prefers low-amylose rice, particularly in China. In this review, we have conducted an in-depth review of waxy rice, starch properties, starch biosynthesis, and posttranslational modification of waxy protein to genetically improve starch quality in rice grains.
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Affiliation(s)
- Tosin Victor Adegoke
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yifeng Wang
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
| | - Lijuan Chen
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
| | - Huimei Wang
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
| | - Wanning Liu
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
| | - Xingyong Liu
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
| | - Yi-Chen Cheng
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
| | - Xiaohong Tong
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
| | - Jiezheng Ying
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
| | - Jian Zhang
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
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11
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Baslam M, Mitsui T, Sueyoshi K, Ohyama T. Recent Advances in Carbon and Nitrogen Metabolism in C3 Plants. Int J Mol Sci 2020; 22:E318. [PMID: 33396811 PMCID: PMC7795015 DOI: 10.3390/ijms22010318] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 12/23/2020] [Accepted: 12/23/2020] [Indexed: 12/19/2022] Open
Abstract
C and N are the most important essential elements constituting organic compounds in plants. The shoots and roots depend on each other by exchanging C and N through the xylem and phloem transport systems. Complex mechanisms regulate C and N metabolism to optimize plant growth, agricultural crop production, and maintenance of the agroecosystem. In this paper, we cover the recent advances in understanding C and N metabolism, regulation, and transport in plants, as well as their underlying molecular mechanisms. Special emphasis is given to the mechanisms of starch metabolism in plastids and the changes in responses to environmental stress that were previously overlooked, since these changes provide an essential store of C that fuels plant metabolism and growth. We present general insights into the system biology approaches that have expanded our understanding of core biological questions related to C and N metabolism. Finally, this review synthesizes recent advances in our understanding of the trade-off concept that links C and N status to the plant's response to microorganisms.
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Affiliation(s)
- Marouane Baslam
- Laboratory of Biochemistry, Faculty of Agriculture, Niigata University, Niigata 950-2181, Japan; (M.B.); (T.M.)
| | - Toshiaki Mitsui
- Laboratory of Biochemistry, Faculty of Agriculture, Niigata University, Niigata 950-2181, Japan; (M.B.); (T.M.)
- Department of Life and Food Sciences, Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan;
| | - Kuni Sueyoshi
- Department of Life and Food Sciences, Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan;
| | - Takuji Ohyama
- Department of Life and Food Sciences, Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan;
- Faculty of Applied Biosciences, Tokyo University of Agriculture, Tokyo 156-8502, Japan
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12
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Xi M, Wu W, Xu Y, Zhou Y, Chen G, Ji Y, Sun X. iTRAQ-based quantitative proteomic analysis reveals the metabolic pathways of grain chalkiness in response to nitrogen topdressing in rice. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 154:622-635. [PMID: 32717594 DOI: 10.1016/j.plaphy.2020.06.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 05/25/2020] [Accepted: 06/08/2020] [Indexed: 06/11/2023]
Abstract
Grain chalkiness is a highly undesirable trait that adversely affects rice quality. This chalkiness is easily influenced by the application of chemical nitrogen (N) fertilizer at the late growth stage. However, on the molecular mechanism underlying grain chalkiness caused by late N fertilization is not fully clear. In this study, proteomic differences in expression were determined in developing grains exposed to N topdressing (108 kg N ha-1, N+) and a control (0 kg N ha-1, N0), using the rice variety OM052, which has a high level of chalkiness. A total of 198 differentially expressed proteins (DEPs) were detected between the N+ and N0 treatments, including 9 up-regulated proteins and 189 down-regulated proteins. Of these DEPs, approximately half were associated with carbohydrate metabolism (glycolysis, tricarboxylic acid cycle, pentose phosphate pathway, fermentation and starch metabolism) and N metabolism (protein synthesis, folding, degradation and storage, amino acid synthesis and catabolism). A detailed pathway dissection revealed that multiple metabolic pathways during the grain filling stage were involved in the N-induced grain chalkiness. Reduced abundances of proteins associated with respiratory metabolism and energy metabolism drastically impaired the biosynthesis and deposition of starch in the developmental endosperms, which might be a crucial trigger for the increase in grain chalkiness. The disturbed N metabolism and differential expression of storage proteins up-regulated during the grain filling stage are able to partially explain the occurrence of grain chalkiness in rice.
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Affiliation(s)
- Min Xi
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei, 230031, Anhui Province, PR China
| | - Wenge Wu
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei, 230031, Anhui Province, PR China.
| | - Youzun Xu
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei, 230031, Anhui Province, PR China
| | - Yongjin Zhou
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei, 230031, Anhui Province, PR China
| | - Gang Chen
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei, 230031, Anhui Province, PR China
| | - Yalan Ji
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei, 230031, Anhui Province, PR China
| | - Xueyuan Sun
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei, 230031, Anhui Province, PR China
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13
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Xu H, Li X, Zhang H, Wang L, Zhu Z, Gao J, Li C, Zhu Y. High temperature inhibits the accumulation of storage materials by inducing alternative splicing of OsbZIP58 during filling stage in rice. PLANT, CELL & ENVIRONMENT 2020; 43:1879-1896. [PMID: 32335936 DOI: 10.1111/pce.13779] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 04/21/2020] [Accepted: 04/23/2020] [Indexed: 05/22/2023]
Abstract
High temperature (HT) has an adverse effect on rice grain filling by inhibiting the accumulation of storage materials. However, the regulatory mechanism of this inhibition remains unknown. Here, we report that Opaque2 like transcription factor OsbZIP58 is a key factor regulating storage material accumulation under HT. The OsbZIP58 gene promotes expression of many seed storage protein genes and starch synthesis genes while inhibits expression of some starch hydrolyzing α-amylase genes under HT. The loss of OsbZIP58 function leads to floury and shrunken endosperms and dramatically reduced storage materials in the seeds under HT. HT is found to affect alternative splicing of OsbZIP58, promoting the formation of the truncated OsbZIP58β protein form over the full-length OsbZIP58α protein form. The OsbZIP58β form has a lower transcriptional activity than the OsbZIP58α form, especially under HT condition. Interestingly, rice varieties with less heat sensitivity have reduced alternative splicing of OsbZIP58. Therefore, OsbZIP58 is a crucial gene in regulating storage material accumulation under HT and lower alternative splicing of OsbZIP58 may contribute to heat tolerance during grain filling.
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Affiliation(s)
- Heng Xu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Xiaofang Li
- Hebei Key Laboratory of Molecular and Cellular Biology, College of Life Science, Hebei Normal University, Shijiazhuang, China
| | - Hua Zhang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Liangchao Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Zhengge Zhu
- Hebei Key Laboratory of Molecular and Cellular Biology, College of Life Science, Hebei Normal University, Shijiazhuang, China
| | - Jiping Gao
- 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, China
| | - Chunshou Li
- Institute of Crops and Utilization of Nuclear Technology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Ying Zhu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
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14
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Xu J, Henry A, Sreenivasulu N. Rice yield formation under high day and night temperatures-A prerequisite to ensure future food security. PLANT, CELL & ENVIRONMENT 2020; 43:1595-1608. [PMID: 32112422 DOI: 10.1111/pce.13748] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Accepted: 02/18/2020] [Indexed: 05/13/2023]
Abstract
Increasing temperatures resulting from climate change dramatically impact rice crop production in Asia. Depending on the specific stage of rice development, heat stress reduces tiller/panicle number, decreases grain number per plant and lower grain weight, thus negatively impacting yield formation. Hence improving rice crop tolerance to heat stress in terms of sustaining yield stability under high day temperature (HDT), high night temperature (HNT), or combined high day and night temperature (HDNT) will bolster future food security. In this review article, we highlight the phenological alterations caused by heat and the underlying molecular-physiological and genetic mechanisms operating under different types of heat conditions (HDT, HNT, and HDNT) to understand heat tolerance. Based on our synthesis of HDT, HNT, and HDNT effects on rice yield components, we outline future breeding strategies to contribute to sustained food security under climate change.
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Affiliation(s)
- Jiemeng Xu
- International Rice Research Institute, Los Baños, Philippines
| | - Amelia Henry
- International Rice Research Institute, Los Baños, Philippines
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15
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Tabassum R, Dosaka T, Ichida H, Morita R, Ding Y, Abe T, Katsube-Tanaka T. FLOURY ENDOSPERM11-2 encodes plastid HSP70-2 involved with the temperature-dependent chalkiness of rice (Oryza sativa L.) grains. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2020; 103:604-616. [PMID: 32215974 DOI: 10.1111/tpj.14752] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 02/01/2020] [Accepted: 03/10/2020] [Indexed: 05/23/2023]
Abstract
The frequent occurrence of chalky rice (Oryza sativa L.) grains becomes a serious problem as a result of climate change. The molecular mechanism underlying chalkiness is largely unknown, however. In this study, the temperature-sensitive floury endosperm11-2 (flo11-2) mutant was isolated from ion beam-irradiated rice of 1116 lines. The flo11-2 mutant showed significantly higher chalkiness than the wild type grown under a mean temperature of 28°C, but similar levels of chalkiness to the wild type grown under a mean temperature of 24°C. Whole-exome sequencing of the flo11-2 mutant showed three causal gene candidates, including Os12g0244100, which encodes the plastid-localized 70-kDa heat shock protein 2 (cpHSP70-2). The cpHSP70-2 of the flo11-2 mutant has an amino acid substitution on the 259th aspartic acid with valine (D259V) in the conserved Motif 5 of the ATPase domain. Transgenic flo11-2 mutants that express the wild-type cpHSP70-2 showed significantly lower chalkiness than the flo11-2 mutant. Moreover, the accumulation level of cpHSP70-2 was negatively correlated with the chalky ratio, indicating that cpHSP70-2 is a causal gene for the chalkiness of the flo11-2 mutant. The intrinsic ATPase activity of recombinant cpHSP70-2 was lower by 23% at Vmax for the flo11-2 mutant than for the wild type. The growth of DnaK-defective Escherichia coli cells complemented with DnaK with the D201V mutation (equivalent to the D259V mutation) was severely reduced at 37°C, but not in the wild-type DnaK. The results indicate that the lowered cpHSP70-2 function is involved with the chalkiness of the flo11-2 mutant.
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Affiliation(s)
- Rehenuma Tabassum
- Graduate School of Agriculture, Kyoto University, Kitashirakawa, Kyoto, 606-8502, Japan
- Department of Crop Botany and Tea Production Technology, Sylhet Agricultural University, Sylhet-3100, Bangladesh
| | - Tokinori Dosaka
- Graduate School of Agriculture, Kyoto University, Kitashirakawa, Kyoto, 606-8502, Japan
| | - Hiroyuki Ichida
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama, 351-0198, Japan
| | - Ryouhei Morita
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama, 351-0198, Japan
| | - Yifan Ding
- Graduate School of Agriculture, Kyoto University, Kitashirakawa, Kyoto, 606-8502, Japan
| | - Tomoko Abe
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama, 351-0198, Japan
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16
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Sruthilaxmi CB, Babu S. Proteome Responses to Individual Pathogens and Abiotic Conditions in Rice Seedlings. PHYTOPATHOLOGY 2020; 110:1326-1341. [PMID: 32175828 DOI: 10.1094/phyto-11-19-0425-r] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Rice plants under field conditions experience various biotic and abiotic stresses and are adapted to survive using a molecular cross-talk of genes and their protein products based on the severity of a given stress. Seedlings of cultivated variety ASD16 (resistant to fungal disease, blast; tolerant to abiotic stress, salinity) were subjected to salt, drought, high temperature and low temperature stress as well as infection by Rhizoctonia solani and Xanthomonas oryzae pv. oryzae (causing reemerging diseases such as sheath blight and leaf blight), respectively, the sheath blight and bacterial leaf blight pathogens. Leaf proteome was analyzed using two-dimensional electrophoresis and differentially expressed proteins were identified using mass spectrometry. In addition to many other differentially expressed proteins, acidic endochitinase was found to be upregulated during fungal infection and drought treatment, and a germin-like protein upregulated during fungal infection and high temperature stress. These two proteins were further validated at the gene expression level using reverse transcription-PCR in dual stress experiments. Pot culture plants were subjected to fungal infection followed by drought and drought followed by fungal infection to validate chitinase gene expression. Similarly, plants subjected to fungal infections followed by high temperature stress and vice versa were used to validate the expression of germin-like protein-coding gene. The results of the present study indicate that chitinase and germin-like protein are potential targets for further exploration to develop rice plants resistant or tolerant to biotic and abiotic stresses.
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Affiliation(s)
| | - Subramanian Babu
- VIT School of Agricultural Innovations and Advanced Learning, Vellore Institute of Technology, Vellore 632014, India
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17
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Ye J, Ding W, Chen Y, Zhu X, Sun J, Zheng W, Zhang B, Zhu S. A nucleoside diphosphate kinase gene OsNDPK4 is involved in root development and defense responses in rice (Oryza sativa L.). PLANTA 2020; 251:77. [PMID: 32152790 DOI: 10.1007/s00425-020-03355-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Accepted: 02/01/2020] [Indexed: 06/10/2023]
Abstract
Dysfunctional mutation of OsNDPK4 resulted in severe defects in root development of rice. However, the resistance of Osndpk4 against bacterial blight was significantly enhanced. Nucleoside diphosphate kinases (NDPKs) are an evolutionarily conserved family of important enzymes balancing the energy currency nucleoside triphosphates by catalyzing the transfer of their phosphate groups. The aim of this study was to elucidate the function of OsNDPK4 in rice. A dysfunctional rice mutant was employed to characterize the function of OsNDPK4. Its expression and subcellular localization were examined. The transcriptomic change in roots of Osndpk4 was analyzed by RNA-seq. The rice mutant Osndpk4 showed severe defects in root development from the early seedling stage. Further analysis revealed that meristematic activity and cell elongation were significantly inhibited in primary roots of Osndpk4, together with reduced accumulation of reactive oxygen species (ROS). Map-based cloning identified that the mutation occurred in the OsNDPK4 gene. OsNDPK4 was found to be expressed in a variety of tissues throughout the plant and OsNDPK4 was located in the cytosol. Osndpk4 showed enhanced resistance to the bacterial pathogen Xanthomonas oryzae pv. oryzae (Xoo) and up-regulation of pathogenesis-related marker genes. In addition, transcriptomic analysis showed that OsNDPK4 was significantly associated with a number of biological processes, including translation, protein modification, metabolism, biotic stress response, etc. Detailed analysis revealed that the dysfunction of OsNDPK4 might reorchestrate energy homeostasis and hormone metabolism and signalling, resulting in repression of translation, DNA replication and cell cycle progression, and priming of biotic stress defense. Our results demonstrate that OsNDPK4 plays important roles in energy homeostasis, development process, and defense responses in rice.
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Affiliation(s)
- Jin Ye
- College of Science and Technology, Ningbo University, Ningbo, 315211, People's Republic of China
- School of Marine Sciences, Ningbo University, Ningbo, 315211, People's Republic of China
| | - Wona Ding
- College of Science and Technology, Ningbo University, Ningbo, 315211, People's Republic of China.
| | - Yujie Chen
- College of Science and Technology, Ningbo University, Ningbo, 315211, People's Republic of China
| | - Xinni Zhu
- College of Science and Technology, Ningbo University, Ningbo, 315211, People's Republic of China
| | - Jiutong Sun
- College of Science and Technology, Ningbo University, Ningbo, 315211, People's Republic of China
| | - Wenjuan Zheng
- College of Science and Technology, Ningbo University, Ningbo, 315211, People's Republic of China
| | - Botao Zhang
- Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China.
| | - Shihua Zhu
- College of Science and Technology, Ningbo University, Ningbo, 315211, People's Republic of China.
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18
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Baslam M, Kaneko K, Mitsui T. iTRAQ-Based Proteomic Analysis of Rice Grains. Methods Mol Biol 2020; 2139:405-414. [PMID: 32462602 DOI: 10.1007/978-1-0716-0528-8_29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Cereal proteins have formed the basis of human diet worldwide, and their level of consumption is expected to increase. The knowledge of the protein composition and variation of the cereal grains is helpful for characterizing cereal varieties and to identify biomarkers for tolerance mechanisms. Grains produce a wide array of proteins, differing under conditions. Quantitative proteomics is a powerful approach allowing the identification of proteins expressed under defined conditions that may contribute understanding the complex biological systems of grains. Isobaric tags for relative and absolute quantitation (iTRAQ) is a mass spectrometry-based quantitative approach allowing, simultaneously, for protein identification and quantification from multiple samples with high coverage. One of the challenges in identifying grains proteins is their relatively high content (~90-95%) of carbohydrate (starch) and low protein (~4-10%) and lipid (~1%) fractions. In this chapter, we present a robust workflow to carry out iTRAQ quantification of the starchy rice grains.
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Affiliation(s)
- Marouane Baslam
- Department of Biochemistry, Faculty of Agriculture, Niigata University, Niigata, Japan
| | - Kentaro Kaneko
- Graduate School of Science and Technology, Niigata University, Niigata, Japan
| | - Toshiaki Mitsui
- Department of Biochemistry, Faculty of Agriculture, Niigata University, Niigata, Japan. .,Graduate School of Science and Technology, Niigata University, Niigata, Japan.
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19
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Sarkar NK, Kotak S, Agarwal M, Kim YK, Grover A. Silencing of class I small heat shock proteins affects seed-related attributes and thermotolerance in rice seedlings. PLANTA 2019; 251:26. [PMID: 31797121 DOI: 10.1007/s00425-019-03318-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 11/26/2019] [Indexed: 06/10/2023]
Abstract
MAIN CONCLUSION Silencing of CI-sHsps by RNAi negatively affected the seed germination process and heat stress response of rice seedlings. Seed size of RNAiCI-sHsp was reduced as compared to wild-type plants. Small heat shock proteins (sHsps) are the ATP-independent chaperones ubiquitously expressed in response to diverse environmental and developmental cues. Cytosolic sHsps constitute the major repertoire of sHsp family. Rice cytosolic class I (CI)-sHsps consists of seven members (Hsp16.9A, Hsp16.9B, Hsp16.9C, Hsp17.4, Hsp17.7, Hsp17.9A and Hsp18). Purified OsHsp17.4 and OsHsp17.9A proteins exhibited chaperone activity by preventing formation of large aggregates with model substrate citrate synthase. OsHsp16.9A and OsHsp17.4 showed nucleo-cytoplasmic localization, while the localization of OsHsp17.9A was preferentially in the nucleus. Transgenic tobacco plants expressing OsHsp17.4 and OsHsp17.9A proteins and Arabidopsis plants ectopically expressing OsHsp17.4 protein showed improved thermotolerance to the respective trans-hosts during the post-stress recovery process. Single hairpin construct was designed to generate all CI-sHsp silenced (RNAiCI-sHsp) rice lines. The major vegetative and reproductive attributes of the RNAiCI-sHsp plants were comparable to the wild-type rice plants. Basal and acquired thermotolerance response of RNAiCI-sHsp seedlings of rice was mildly affected. The seed length of RNAiCI-sHsp rice plants was significantly reduced. The seed germination process was delayed and seed thermotolerance of RNAiCI-sHsp was negatively affected than the non-transgenic seeds. We, thus, implicate that sHsp genes are critical in seedling thermotolerance and seed physiology.
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Affiliation(s)
- Neelam K Sarkar
- Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, 110021, India
| | - Sachin Kotak
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, India
| | - Manu Agarwal
- Department of Botany, University of Delhi, Delhi, 110007, India
| | - Yeon-Ki Kim
- Department of Bioscience and Bioinformatics, Myongji University, Yongin, Gyeonggi-do, 449-728, Korea
| | - Anil Grover
- Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, 110021, India.
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20
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Zhou H, Wang X, Huo C, Wang H, An Z, Sun D, Liu J, Tang W, Zhang B. A Quantitative Proteomics Study of Early Heat-Regulated Proteins by Two-Dimensional Difference Gel Electrophoresis Identified OsUBP21 as a Negative Regulator of Heat Stress Responses in Rice. Proteomics 2019; 19:e1900153. [PMID: 31491808 DOI: 10.1002/pmic.201900153] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 08/10/2019] [Indexed: 12/11/2022]
Abstract
To understand the early heat shock (HS)-regulated cellular responses that influence the tolerance of rice plant to high environmental temperatures, two-dimensional difference gel electrophoresis (2D-DIGE) is performed to explore the early HS-regulated proteome. Multiple proteins that show abundance changes after 1 and 5 min of HS treatment are identified. Of the early HS-regulated proteins identified, the abundance of a ubiquitin-specific protease, OsUBP21, and its Arabidopsis homolog, AtUBP13, is found to be upregulated by 5 min of HS treatment. Further, knocking the expression of OsUBP21 or AtUBP13 down or out increases the tolerance of rice and Arabidopsis plants to HS stress, suggesting that the function of these ubiquitin-specific proteases in regulating plant HS responses is conserved between monocots and dicots. 2D-DIGE showed a group of proteins are differentially regulated in wild-type and ubp21 mutant after 30 min of HS treatment. Among these proteins, 11 are found to interact directly with OsUBP21; thus, they may be targets of OsUBP21. Future analyses of the roles of these OsUBP21-interacting proteins in plant HS responses will help reveal the protein ubiquitination/deubiquitination-regulated cellular responses induced by HS in rice.
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Affiliation(s)
- Hangfan Zhou
- Hebei Collaboration Innovation Center for Cell Signaling; Key Laboratory of Molecular and Cellular Biology of Ministry of Education; Hebei Key Laboratory of Molecular and Cellular Biology; College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, 050024, China
| | - Xiaolong Wang
- Hebei Collaboration Innovation Center for Cell Signaling; Key Laboratory of Molecular and Cellular Biology of Ministry of Education; Hebei Key Laboratory of Molecular and Cellular Biology; College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, 050024, China
| | - Chenmin Huo
- College of Biological Science and Engineering, Hebei University of Economics and Business, Shijiazhuang, Hebei, 050061, China
| | - Hui Wang
- Hebei Collaboration Innovation Center for Cell Signaling; Key Laboratory of Molecular and Cellular Biology of Ministry of Education; Hebei Key Laboratory of Molecular and Cellular Biology; College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, 050024, China
| | - Zhichao An
- Hebei Collaboration Innovation Center for Cell Signaling; Key Laboratory of Molecular and Cellular Biology of Ministry of Education; Hebei Key Laboratory of Molecular and Cellular Biology; College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, 050024, China
| | - Daye Sun
- Hebei Collaboration Innovation Center for Cell Signaling; Key Laboratory of Molecular and Cellular Biology of Ministry of Education; Hebei Key Laboratory of Molecular and Cellular Biology; College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, 050024, China
| | - Jingze Liu
- Hebei Collaboration Innovation Center for Cell Signaling; Key Laboratory of Molecular and Cellular Biology of Ministry of Education; Hebei Key Laboratory of Molecular and Cellular Biology; College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, 050024, China
| | - Wenqiang Tang
- Hebei Collaboration Innovation Center for Cell Signaling; Key Laboratory of Molecular and Cellular Biology of Ministry of Education; Hebei Key Laboratory of Molecular and Cellular Biology; College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, 050024, China
| | - Baowen Zhang
- Hebei Collaboration Innovation Center for Cell Signaling; Key Laboratory of Molecular and Cellular Biology of Ministry of Education; Hebei Key Laboratory of Molecular and Cellular Biology; College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, 050024, China
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21
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Huang Y, Xuan H, Yang C, Guo N, Wang H, Zhao J, Xing H. GmHsp90A2 is involved in soybean heat stress as a positive regulator. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2019; 285:26-33. [PMID: 31203891 DOI: 10.1016/j.plantsci.2019.04.016] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 04/16/2019] [Accepted: 04/17/2019] [Indexed: 05/09/2023]
Abstract
Heat shock protein 90 s (Hsp90s), one of the most conserved and abundant molecular chaperones, is an essential component of the protective stress response. A previous study reported at least 12 genes in the GmHsp90s family in soybean and that GmHsp90A2 overexpression enhanced thermotolerance in Arabidopsis thaliana. Here, we investigate the roles of GmHsp90A2 in soybean by utilizing stable transgenic soybean lines overexpressing GmHsp90A2 and mutant lines generated by the CRISPR/Cas9 system. The results showed that compared with wild-type plants (WT) and empty vector control plants (VC), T3 transgenic soybean plants overexpressing GmHsp90A2 exhibited increased tolerance to heat stress through higher chlorophyll and lower malondialdehyde (MDA) contents in plants. Conversely, reduced chlorophyll and increased MDA contents in T2 homozygous GmHsp90A2-knockout mutants indicated decreased tolerance to heat stress. GmHsp90A2 was found to interact with GmHsp90A1 in yeast two-hybrid assays. Furthermore, subcellular localization analyses revealed that GmHsp90A2 was localized to the cytoplasm and cell membrane; as shown by bimolecular fluorescence complementation (BiFC) assays, GmHsp90A2 interacted with GmHsp90A1 in the nucleus and cytoplasm and cell membrane. Hence, we conclude that GmHsp90A1 is able to bind to GmHsp90A2 to form a complex and that this complex enters the nucleus. In summary, GmHsp90A2 might respond to heat stress and positively regulate thermotolerance by interacting with GmHsp90A1.
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Affiliation(s)
- Yanzhong Huang
- National Center for Soybean Improvement, Key Laboratory of Biology and Genetics and Breeding for Soybean, Ministry of Agriculture, State Key Laboratory for Crop Genetics and Germplasm Enhancement, College of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Huidong Xuan
- National Center for Soybean Improvement, Key Laboratory of Biology and Genetics and Breeding for Soybean, Ministry of Agriculture, State Key Laboratory for Crop Genetics and Germplasm Enhancement, College of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Chengfeng Yang
- National Center for Soybean Improvement, Key Laboratory of Biology and Genetics and Breeding for Soybean, Ministry of Agriculture, State Key Laboratory for Crop Genetics and Germplasm Enhancement, College of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Na Guo
- National Center for Soybean Improvement, Key Laboratory of Biology and Genetics and Breeding for Soybean, Ministry of Agriculture, State Key Laboratory for Crop Genetics and Germplasm Enhancement, College of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Haitang Wang
- National Center for Soybean Improvement, Key Laboratory of Biology and Genetics and Breeding for Soybean, Ministry of Agriculture, State Key Laboratory for Crop Genetics and Germplasm Enhancement, College of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Jinming Zhao
- National Center for Soybean Improvement, Key Laboratory of Biology and Genetics and Breeding for Soybean, Ministry of Agriculture, State Key Laboratory for Crop Genetics and Germplasm Enhancement, College of Agriculture, Nanjing Agricultural University, Nanjing 210095, China.
| | - Han Xing
- National Center for Soybean Improvement, Key Laboratory of Biology and Genetics and Breeding for Soybean, Ministry of Agriculture, State Key Laboratory for Crop Genetics and Germplasm Enhancement, College of Agriculture, Nanjing Agricultural University, Nanjing 210095, China.
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22
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Ishimaru T, Parween S, Saito Y, Shigemitsu T, Yamakawa H, Nakazono M, Masumura T, Nishizawa NK, Kondo M, Sreenivasulu N. Laser Microdissection-Based Tissue-Specific Transcriptome Analysis Reveals a Novel Regulatory Network of Genes Involved in Heat-Induced Grain Chalk in Rice Endosperm. PLANT & CELL PHYSIOLOGY 2019; 60:626-642. [PMID: 30517758 PMCID: PMC6400107 DOI: 10.1093/pcp/pcy233] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 11/27/2018] [Indexed: 05/19/2023]
Abstract
Heat stress occurrence during seed filling leads to the formation of a chalky portion in the limited zone of the starchy endosperm of rice grains. In this study, isolation of aleurone, dorsal, central and lateral tissues of developing endosperm by laser-microdissection (LM) coupled with gene expression analysis of a 44 K microarray was performed to identify key regulatory genes involved in the formation of milky-white (MW) and white-back (WB) grains during heat stress. Gene regulatory network analysis classified the genes changed under heat stress into five modules. The most distinct expression pattern was observed in modules where most of the small heat shock proteins and cellular organization genes were changed under heat stress in dorsal aleurone cells and dorsal starchy endosperm zones. The histological observation supported the significant increase in cell number and size of dorsal aleurone cells in WB grains. With regard to the central starchy endosperm zone, preferential down-regulation of high molecular weight heat shock proteins (HMW HSPs), including a prominent member encoding endoplasmic reticulum (ER) chaperones, by heat stress was observed, while changes in expression of starch biosynthesis genes were minimal. Characterization of transgenic plants suppressing endosperm lumenal binding protein gene (BiP1), an ER chaperone preferentially down-regulated at the MW zone under heat stress, showed evidence of forming the chalky grains without disturbing the expression of starch biosynthesis genes. The present LM-based comprehensive expression analysis provides novel inferences that HMW HSPs play an important role in controlling redox, nitrogen and amino acid metabolism in endosperm leading to the formation of MW and WB chalky grains under heat stress.
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Affiliation(s)
- Tsutomu Ishimaru
- NARO Institute of Crop Science, NARO, 2-1-18 Kannondai, Tsukuba, Ibaraki, Japan
- Hokuriku Research Station, Central Region Agricultural Research Center, National Agriculture and Food Research Organization (CARC/NARO), 1-2-1 Inada, Joetsu, Niigata, Japan
| | - Sabiha Parween
- International Rice Research Institute (IRRI), DAPO, Metro Manila, The Philippines
| | - Yuhi Saito
- Graduate School of Life and Environmental Science, Kyoto Prefectural University, Shimogamo, Sakyo-ku, Kyoto, Japan
| | - Takanari Shigemitsu
- Graduate School of Life and Environmental Science, Kyoto Prefectural University, Shimogamo, Sakyo-ku, Kyoto, Japan
| | - Hiromoto Yamakawa
- Hokuriku Research Station, Central Region Agricultural Research Center, National Agriculture and Food Research Organization (CARC/NARO), 1-2-1 Inada, Joetsu, Niigata, Japan
| | - Mikio Nakazono
- Graduate School of Bioagricultural Sciences, Nagoya University, Furo, Chikusa, Nagoya, Japan
| | - Takehiro Masumura
- Graduate School of Life and Environmental Science, Kyoto Prefectural University, Shimogamo, Sakyo-ku, Kyoto, Japan
| | - Naoko K Nishizawa
- Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, 1-38 Suematsu, Nonoichi, Ishikawa, Japan
| | - Motohiko Kondo
- NARO Institute of Crop Science, NARO, 2-1-18 Kannondai, Tsukuba, Ibaraki, Japan
- Graduate School of Bioagricultural Sciences, Nagoya University, Furo, Chikusa, Nagoya, Japan
| | - Nese Sreenivasulu
- International Rice Research Institute (IRRI), DAPO, Metro Manila, The Philippines
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23
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Wang X, Hou L, Lu Y, Wu B, Gong X, Liu M, Wang J, Sun Q, Vierling E, Xu S. Metabolic adaptation of wheat grain contributes to a stable filling rate under heat stress. JOURNAL OF EXPERIMENTAL BOTANY 2018; 69:5531-5545. [PMID: 30476278 PMCID: PMC6255704 DOI: 10.1093/jxb/ery303] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 08/11/2018] [Indexed: 05/23/2023]
Abstract
Wheat (Triticum aestivum) is particularly vulnerable to heat stress during the grain filling stage, and this can adversely affect the final yield. However, the underlying physiological and molecular mechanisms are largely unknown. In this study, the effects of heat stress on grain filling were investigated using wheat varieties with different levels of thermotolerance. Decreased grain weights and filling durations, increased protein contents, and stable filling rates across diverse varieties under different heat regimes suggested a general mechanism for heat adaptation. Proteomic analysis identified 309 heat-responsive proteins (HRPs), and revealed a general decrease in protein synthesis components and metabolic proteins, but a significant increase in stress-response proteins and storage proteins. Metabolomic analysis identified 98 metabolites specifically changed by heat stress, and suggested a global decrease in the content of carbohydrate metabolites, an increased content of amino acids, and stable levels of starch synthesis precursors. The energy-consuming HRPs suggested that less energy was channelled into metabolism and protein synthesis, whereas more energy was allocated to the stress response under elevated heat conditions. Collectively, the data demonstrated a widely distributed mechanism for heat adaptation of metabolism, in which the assimilation and energy required for metabolism and protein synthesis are reallocated to heat protection and deposition of reserves, resulting in increased storage protein accumulation and a stable filling rate.
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Affiliation(s)
- Xiaoming Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
| | - Lijiang Hou
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
| | - Yunze Lu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
| | - Bingjin Wu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
| | - Xue Gong
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
| | - Manshuang Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
| | - Jun Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
| | - Qixin Sun
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
- Department of Plant Genetics & Breeding, China Agricultural University, Haidian District, Beijing, China
| | - Elizabeth Vierling
- Department of Biochemistry & Molecular Biology, University of Massachusetts, Amherst, MA, USA
| | - Shengbao Xu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
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24
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Tang S, Chen W, Liu W, Zhou Q, Zhang H, Wang S, Ding Y. Open-field warming regulates the morphological structure, protein synthesis of grain and affects the appearance quality of rice. J Cereal Sci 2018. [DOI: 10.1016/j.jcs.2018.09.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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25
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Mouzo D, Bernal J, López-Pedrouso M, Franco D, Zapata C. Advances in the Biology of Seed and Vegetative Storage Proteins Based on Two-Dimensional Electrophoresis Coupled to Mass Spectrometry. Molecules 2018; 23:E2462. [PMID: 30261600 PMCID: PMC6222612 DOI: 10.3390/molecules23102462] [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: 07/31/2018] [Revised: 09/18/2018] [Accepted: 09/21/2018] [Indexed: 12/24/2022] Open
Abstract
Seed storage proteins play a fundamental role in plant reproduction and human nutrition. They accumulate during seed development as reserve material for germination and seedling growth and are a major source of dietary protein for human consumption. Storage proteins encompass multiple isoforms encoded by multi-gene families that undergo abundant glycosylations and phosphorylations. Two-dimensional electrophoresis (2-DE) is a proteomic tool especially suitable for the characterization of storage proteins because of their peculiar characteristics. In particular, storage proteins are soluble multimeric proteins highly represented in the seed proteome that contain polypeptides of molecular mass between 10 and 130 kDa. In addition, high-resolution profiles can be achieved by applying targeted 2-DE protocols. 2-DE coupled with mass spectrometry (MS) has traditionally been the methodology of choice in numerous studies on the biology of storage proteins in a wide diversity of plants. 2-DE-based reference maps have decisively contributed to the current state of our knowledge about storage proteins in multiple key aspects, including identification of isoforms and quantification of their relative abundance, identification of phosphorylated isoforms and assessment of their phosphorylation status, and dynamic changes of isoforms during seed development and germination both qualitatively and quantitatively. These advances have translated into relevant information about meaningful traits in seed breeding such as protein quality, longevity, gluten and allergen content, stress response and antifungal, antibacterial, and insect susceptibility. This review addresses progress on the biology of storage proteins and application areas in seed breeding using 2-DE-based maps.
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Affiliation(s)
- Daniel Mouzo
- Department of Zoology, Genetics and Physical Anthropology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Javier Bernal
- Department of Zoology, Genetics and Physical Anthropology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - María López-Pedrouso
- Department of Zoology, Genetics and Physical Anthropology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Daniel Franco
- Meat Technology Center of Galicia, 32900 San Cibrao das Viñas, Ourense, Spain.
| | - Carlos Zapata
- Department of Zoology, Genetics and Physical Anthropology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain.
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26
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Zhang H, Xu H, Feng M, Zhu Y. Suppression of OsMADS7 in rice endosperm stabilizes amylose content under high temperature stress. PLANT BIOTECHNOLOGY JOURNAL 2018; 16:18-26. [PMID: 28429576 PMCID: PMC5785353 DOI: 10.1111/pbi.12745] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 04/06/2017] [Accepted: 04/11/2017] [Indexed: 05/03/2023]
Abstract
High temperature significantly alters the amylose content of rice, resulting in mature grains with poor eating quality. However, only few genes and/or quantitative trait loci involved in this process have been isolated and the molecular mechanisms of this effect remain unclear. Here, we describe a floral organ identity gene, OsMADS7, involved in stabilizing rice amylose content at high temperature. OsMADS7 is greatly induced by high temperature at the early filling stage. Constitutive suppression of OsMADS7 stabilizes amylose content under high temperature stress but results in low spikelet fertility. However, rice plants with both stable amylose content at high temperature and normal spikelet fertility can be obtained by specifically suppressing OsMADS7 in endosperm. GBSSI is the major enzyme responsible for amylose biosynthesis. A low filling rate and high expression of GBSSI were detected in OsMADS7 RNAi plants at high temperature, which may be correlated with stabilized amylose content in these transgenic seeds under high temperature. Thus, specific suppression of OsMADS7 in endosperm could improve the stability of rice amylose content at high temperature, and such transgenic materials may be a valuable genetic resource for breeding rice with elite thermal resilience.
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Affiliation(s)
- Hua Zhang
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease ControlKey Laboratory of Creative AgricultureMinistry of AgricultureInstitute of Virology and BiotechnologyZhejiang Academy of Agricultural SciencesHangzhouZhejiangChina
| | - Heng Xu
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease ControlKey Laboratory of Creative AgricultureMinistry of AgricultureInstitute of Virology and BiotechnologyZhejiang Academy of Agricultural SciencesHangzhouZhejiangChina
| | - Mengjie Feng
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease ControlKey Laboratory of Creative AgricultureMinistry of AgricultureInstitute of Virology and BiotechnologyZhejiang Academy of Agricultural SciencesHangzhouZhejiangChina
| | - Ying Zhu
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease ControlKey Laboratory of Creative AgricultureMinistry of AgricultureInstitute of Virology and BiotechnologyZhejiang Academy of Agricultural SciencesHangzhouZhejiangChina
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27
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Mishra D, Shekhar S, Singh D, Chakraborty S, Chakraborty N. Heat Shock Proteins and Abiotic Stress Tolerance in Plants. REGULATION OF HEAT SHOCK PROTEIN RESPONSES 2018. [DOI: 10.1007/978-3-319-74715-6_3] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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28
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Zhang HY, Lei G, Zhou HW, He C, Liao JL, Huang YJ. Quantitative iTRAQ-based proteomic analysis of rice grains to assess high night temperature stress. Proteomics 2017; 17. [PMID: 28101936 PMCID: PMC5811895 DOI: 10.1002/pmic.201600365] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 12/23/2016] [Accepted: 01/13/2017] [Indexed: 12/13/2022]
Abstract
Rice yield and quality are adversely affected by increasing global surface temperature, and are strongly attributed to high night temperature (HNT) than high daytime temperature. However, the molecular mechanism underlying the heat‐tolerant characteristics of rice remains unclear. In the present study, we compared the proteomes of heat‐tolerant and ‐sensitive lines of rice at early milky stage using an iTRAQ method. We have identified 38 differentially expressed proteins between the two lines, of which 32 proteins have been functionally annotated in NCBI and/or the UniProt database. These proteins were then classified into seven functional subgroups, which include signal transduction, transcript regulation, oxidation, defense response, transport, energy metabolism, and biosynthesis. Further analysis indicated that HNT stress could disrupt the redox equilibrium of plant cells, which in turn triggers the calcium‐dependent protein kinase and COP9 signalosome, thereby regulating downstream genes/proteins that are involved in the HNT response. The candidate proteins may provide genetic resources for the improvement of heat‐tolerant characteristics in rice, and the proposed model for signal transduction and transcriptional regulation may facilitate in the elucidation of the molecular mechanism underlying the response to HNT stress in rice.
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Affiliation(s)
- Hong-Yu Zhang
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding (Jiangxi Agricultural University), Ministry of Education, Jiangxi Province, P. R. China
| | - Gang Lei
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding (Jiangxi Agricultural University), Ministry of Education, Jiangxi Province, P. R. China
| | - Hui-Wen Zhou
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding (Jiangxi Agricultural University), Ministry of Education, Jiangxi Province, P. R. China
| | - Chao He
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding (Jiangxi Agricultural University), Ministry of Education, Jiangxi Province, P. R. China
| | - Jiang-Lin Liao
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding (Jiangxi Agricultural University), Ministry of Education, Jiangxi Province, P. R. China
| | - Ying-Jin Huang
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding (Jiangxi Agricultural University), Ministry of Education, Jiangxi Province, P. R. China.,Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China, Hunan Province, P. R. China
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29
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Arshad MS, Farooq M, Asch F, Krishna JSV, Prasad PVV, Siddique KHM. Thermal stress impacts reproductive development and grain yield in rice. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2017; 115:57-72. [PMID: 28324683 DOI: 10.1016/j.plaphy.2017.03.011] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Revised: 03/10/2017] [Accepted: 03/14/2017] [Indexed: 05/04/2023]
Abstract
Rice is highly sensitive to temperature stress (cold and heat), particularly during the reproductive and grain-filling stages. In this review, we discuss the effects of low- and high-temperature sensitivity in rice at various reproductive stages (from meiosis to grain development) and propose strategies for improving the tolerance of rice to terminal thermal stress. Cold stress impacts reproductive development through (i) delayed heading, due to its effect on anther respiration, which increases sucrose accumulation, protein denaturation and asparagine levels, and decreases proline accumulation, (ii) pollen sterility owing to tapetal hypertrophy and related nutrient imbalances, (iii) reduced activity of cell wall bound invertase in the tapetum of rice anthers, (iv) impaired fertilization due to inhibited anther dehiscence, stigma receptivity and ability of the pollen tube to germinate through the style towards the ovary, and (v) floret sterility, which increases grain abortion, restricts grain size, and thus reduces grain yield. Heat stress affects grain formation and development through (i) poor anther dehiscence due to restricted closure of the locules, leading to reduced pollen dispersal and fewer pollen on the stigma, (ii) changes in pollen proteins resulting in significant reductions in pollen viability and pollen tube growth, leading to spikelet sterility, (iii) delay in heading, (iv) reduced starch biosynthesis in developing grain, which reduces starch accumulation, (v) increased chalkiness of grain with irregular and round-shaped starch granules, and (vi) a shortened grain-filling period resulting in low grain weight. However, physiological and biotechnological tools, along with integrated management and adaptation options, as well as conventional breeding, can help to develop new rice genotypes possessing better grain yield under thermal stress during reproductive and grain-filling phases.
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Affiliation(s)
| | - Muhammad Farooq
- Department of Agronomy, University of Agriculture, Faisalabad, Pakistan; Institute of Agricultural Sciences in the Tropics, University of Hohenheim, 70599, Stuttgart, Germany; The UWA Institute of Agriculture, The University of Western Australia, LB 5005, Perth, WA, 6001, Australia.
| | - Folkard Asch
- Institute of Agricultural Sciences in the Tropics, University of Hohenheim, 70599, Stuttgart, Germany
| | | | - P V Vara Prasad
- Department of Agronomy, Kansas State University, Manhattan, KS, 66506, USA
| | - Kadambot H M Siddique
- The UWA Institute of Agriculture, The University of Western Australia, LB 5005, Perth, WA, 6001, Australia
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Yamakawa H, Hirai-Kimura R, Nakata Y, Nakata M, Kuroda M, Yamaguchi T. An Activity-Staining Method on Filtration Paper Enables High-Throughput Screening of Temperature-Sensitive and Inactive Mutations of Rice α-Amylase for Improvement of Rice Grain Quality. PLANT & CELL PHYSIOLOGY 2017; 58:658-667. [PMID: 28339688 DOI: 10.1093/pcp/pcx030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 02/14/2017] [Indexed: 05/08/2023]
Abstract
α-Amylase is a starch-hydrolyzing enzyme (EC 3.2.1.1) indispensable for germination of cereal seeds, but it is also expressed during the ripening stage. Previous studies demonstrated that the enzyme is activated in developing rice seeds under extremely hot weather and triggers a loss of grain quality by hindering the accumulation of storage starch in the endosperm. Since inactive or, preferably, heat-labile α-amylases are preferable for breeding premium rice, we developed a method for rapid screening of inactive and temperature-sensitive mutants of the enzyme by combining the random mutagenesis by error-prone PCR and an on-filter activity test of the recombinant enzyme expressed by Escherichia coli. This technique was applied to a major α-amylase in the developing seed, Amy3D, and the activity of the isolated mutant enzymes was verified with both the bacteria-expressed recombinant proteins and the extract from the endosperm overexpressing each of them. Then, we identified several substitutions leading to loss of the activity of amino acid residues (Leu28, Asp112, Cys149, Trp201, Asp204, Gly295, Leu300 and Cys342), as well as a variety of heat-sensitive substitutions of Asp83, Asp187 and Glu252. Furthermore, variations of the heat-labile enzymes were created by combining these heat-sensitive mutations. The effects of the respective mutations and their relationship to the structure of the enzyme molecule are discussed.
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Affiliation(s)
- Hiromoto Yamakawa
- Division of Crop Development, Central Region Agricultural Research Center, National Agriculture and Food Research Organization (NARO), Joetsu, Japan
| | - Rieko Hirai-Kimura
- Division of Crop Development, Central Region Agricultural Research Center, National Agriculture and Food Research Organization (NARO), Joetsu, Japan
| | - Yuriko Nakata
- Teikyo University Graduate School of Public Health, Tokyo, Japan
| | - Masaru Nakata
- Department of Biosciences and Informatics, Keio University, Yokohama, Kanagawa, Japan
| | - Masaharu Kuroda
- Division of Crop Development, Central Region Agricultural Research Center, National Agriculture and Food Research Organization (NARO), Joetsu, Japan
| | - Takeshi Yamaguchi
- Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
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Lin Z, Wang Z, Zhang X, Liu Z, Li G, Wang S, Ding Y. Complementary Proteome and Transcriptome Profiling in Developing Grains of a Notched-Belly Rice Mutant Reveals Key Pathways Involved in Chalkiness Formation. PLANT & CELL PHYSIOLOGY 2017; 58:560-573. [PMID: 28158863 PMCID: PMC5444571 DOI: 10.1093/pcp/pcx001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 01/02/2017] [Indexed: 05/03/2023]
Abstract
Rice grain chalkiness is a highly complex trait involved in multiple metabolic pathways and controlled by polygenes and growth conditions. To uncover novel aspects of chalkiness formation, we performed an integrated profiling of gene activity in the developing grains of a notched-belly rice mutant. Using exhaustive tandem mass spectrometry-based shotgun proteomics and whole-genome RNA sequencing to generate a nearly complete catalog of expressed mRNAs and proteins, we reliably identified 38,476 transcripts and 3,840 proteins. Comparison between the translucent part and chalky part of the notched-belly grains resulted in only a few differently express genes (240) and differently express proteins (363), thus making it possible to focus on 'core' genes or common pathways. Several novel key pathways were identified as of relevance to chalkiness formation, in particular the shift of C and N metabolism, the down-regulation of ribosomal proteins and the resulting low abundance of storage proteins especially the 13 kDa prolamin subunit, and the suppressed photosynthetic capacity in the pericarp of the chalky part. Further, genes and proteins as transporters for carbohydrates, amino acid/peptides, proteins, lipids and inorganic ions showed an increasing expression pattern in the chalky part of the notched-belly grains. Similarly, transcripts and proteins of receptors for auxin, ABA, ethylene and brassinosteroid were also up-regulated. In summary, this joint analysis of transcript and protein profiles provides a comprehensive reference map of gene activity regarding the physiological state in the chalky endosperm.
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Affiliation(s)
- Zhaomiao Lin
- College of Agronomy, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Zunxin Wang
- College of Agronomy, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Xincheng Zhang
- College of Agronomy, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Zhenghui Liu
- College of Agronomy, Nanjing Agricultural University, Nanjing 210095, PR China
- Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing 210095, PR China
- Corresponding author: E-mail, ; Fax, +86-25-84395313
| | - Ganghua Li
- College of Agronomy, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Shaohua Wang
- College of Agronomy, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Yanfeng Ding
- College of Agronomy, Nanjing Agricultural University, Nanjing 210095, PR China
- Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing 210095, PR China
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Dorion S, Clendenning A, Rivoal J. Engineering the expression level of cytosolic nucleoside diphosphate kinase in transgenic Solanum tuberosum roots alters growth, respiration and carbon metabolism. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2017; 89:914-926. [PMID: 27880021 DOI: 10.1111/tpj.13431] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 11/14/2016] [Accepted: 11/17/2016] [Indexed: 05/06/2023]
Abstract
Nucleoside diphosphate kinase (NDPK) is a ubiquitous enzyme that catalyzes the transfer of the γ-phosphate from a donor nucleoside triphosphate to an acceptor nucleoside diphosphate. In this study we used a targeted metabolomic approach and measurement of physiological parameters to report the effects of the genetic manipulation of cytosolic NDPK (NDPK1) expression on physiology and carbon metabolism in potato (Solanum tuberosum) roots. Sense and antisense NDPK1 constructs were introduced in potato using Agrobacterium rhizogenes to generate a population of root clones displaying a 40-fold difference in NDPK activity. Root growth, O2 uptake, flux of carbon between sucrose and CO2 , levels of reactive oxygen species and some tricarboxylic acid cycle intermediates were positively correlated with levels of NDPK1 expression. In addition, NDPK1 levels positively affected UDP-glucose and cellulose contents. The activation state of ADP-glucose pyrophosphorylase, a key enzyme in starch synthesis, was higher in antisense roots than in roots overexpressing NDPK1. Further analyses demonstrated that ADP-glucose pyrophosphorylase was more oxidized, and therefore less active, in sense clones than antisense clones. Consequently, antisense NDPK1 roots accumulated more starch and the starch to cellulose ratio was negatively affected by the level of NDPK1. These data support the idea that modulation of NDPK1 affects the distribution of carbon between starch and cellulose biosynthetic pathways.
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Affiliation(s)
- Sonia Dorion
- Institut de Recherche en Biologie Végétale, Université de Montréal, 4101 Sherbrooke Est, Montréal, QC, H1X 2B2, Canada
| | - Audrey Clendenning
- Institut de Recherche en Biologie Végétale, Université de Montréal, 4101 Sherbrooke Est, Montréal, QC, H1X 2B2, Canada
| | - Jean Rivoal
- Institut de Recherche en Biologie Végétale, Université de Montréal, 4101 Sherbrooke Est, Montréal, QC, H1X 2B2, Canada
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Kaneko K, Sasaki M, Kuribayashi N, Suzuki H, Sasuga Y, Shiraya T, Inomata T, Itoh K, Baslam M, Mitsui T. Proteomic and Glycomic Characterization of Rice Chalky Grains Produced Under Moderate and High-temperature Conditions in Field System. RICE (NEW YORK, N.Y.) 2016; 9:26. [PMID: 27246013 PMCID: PMC4887401 DOI: 10.1186/s12284-016-0100-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 05/11/2016] [Indexed: 05/03/2023]
Abstract
BACKGROUND Global climate models predict an increase in global mean temperature and a higher frequency of intense heat spikes during this century. Cereals such as rice (Oryza sativa L.) are more susceptible to heat stress, mainly during the gametogenesis and flowering stages. During periods of high temperatures, grain filling often causes serious damage to the grain quality of rice and, therefore, yield losses. While the genes encoding enzymes involved in carbohydrate metabolism of chalky grains have been established, a significant knowledge gap exists in the proteomic and glycomic responses to warm temperatures in situ. Here, we studied the translucent and opaque characters of high temperature stressed chalky grains of 2009 and 2010 (ripening temperatures: 24.4 and 28.0 °C, respectively). RESULTS Appearance of chalky grains of both years showed some resemblance, and the high-temperature stress of 2010 remarkably extended the chalking of grain. Scanning electron microscopic observation showed that round-shaped starch granules with numerous small pits were loosely packed in the opaque part of the chalky grains. Proteomic analyzes of rice chalky grains revealed deregulations in the expression of multiple proteins implicated in diverse metabolic and physiological functions, such as protein synthesis, redox homeostasis, lipid metabolism, and starch biosynthesis and degradation. The glycomic profiling has shown slight differences in chain-length distributions of starches in the grains of 2009-to-2010. However, no significant changes were observed in the chain-length distributions between the translucent and opaque parts of perfect and chalky grains in both years. The glucose and soluble starch contents in opaque parts were increased by the high-temperature stress of 2010, though those in perfect grains were not different regardless of the environmental changes of 2009-to-2010. CONCLUSION Together with previous findings on the increased expression of α-amylases in the endosperm, these results suggested that unusual starch degradation rather than starch synthesis is involved in occurring of chalky grains of rice under the high-temperature stress during grain filling period.
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Affiliation(s)
- Kentaro Kaneko
- Graduate School of Science and Technology, Niigata University, Niigata, 950-2181, Japan
| | - Maiko Sasaki
- Graduate School of Science and Technology, Niigata University, Niigata, 950-2181, Japan
| | - Nanako Kuribayashi
- Graduate School of Science and Technology, Niigata University, Niigata, 950-2181, Japan
| | - Hiromu Suzuki
- Graduate School of Science and Technology, Niigata University, Niigata, 950-2181, Japan
| | - Yukiko Sasuga
- Department of Applied Biological Chemistry, Niigata University, Niigata, 950-218, Japan
| | - Takeshi Shiraya
- Department of Applied Biological Chemistry, Niigata University, Niigata, 950-218, Japan
- Present address: Niigata Crop Research Center, Niigata Agricultural Research Institute, Nagaoka, 940-0826, Japan
| | - Takuya Inomata
- Graduate School of Science and Technology, Niigata University, Niigata, 950-2181, Japan
| | - Kimiko Itoh
- Graduate School of Science and Technology, Niigata University, Niigata, 950-2181, Japan
| | - Marouane Baslam
- Graduate School of Science and Technology, Niigata University, Niigata, 950-2181, Japan
| | - Toshiaki Mitsui
- Graduate School of Science and Technology, Niigata University, Niigata, 950-2181, Japan.
- Department of Applied Biological Chemistry, Niigata University, Niigata, 950-218, Japan.
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Das K, Panda BB, Sekhar S, Kariali E, Mohapatra PK, Shaw BP. Comparative proteomics of the superior and inferior spikelets at the early grain filling stage in rice cultivars contrast for panicle compactness and ethylene evolution. JOURNAL OF PLANT PHYSIOLOGY 2016; 202:65-74. [PMID: 27450495 DOI: 10.1016/j.jplph.2016.07.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 07/11/2016] [Accepted: 07/11/2016] [Indexed: 06/06/2023]
Abstract
The breeding programmes in rice aimed at increasing the number of spikelets per panicle have been accompanied by poor grain filling in the inferior spikelets of large panicle rice, leading to yield disadvantage. The present study attempted to understand the reason for differential grain filling in the inferior and superior spikelets by comparative proteomics considering a compact-panicle rice cultivar Mahalaxmi and a lax-panicle rice cultivar Upahar, which show poor and good grain filling, respectively. An initial study of two rice cultivars for panicle compactness and grain filling revealed an inverse correlation between the two parameters. It was further observed that the panicle compactness in Mahalaxmi was associated with a higher evolution of ethylene by the spikelets, both superior and inferior, compared with the lax-panicle Upahar. The proteomic studies revealed that the superior and inferior spikelets of Mahalaxmi differentially expressed 21 proteins that were also expressed in Upahar. However, in Upahar, only two of these proteins were differentially expressed between the superior and inferior spikelets, indicating that the metabolic activities of the spikelets occupying the superior and inferior positions on the panicle were very different in Mahalaxmi compared with those in Upahar. Among the proteins that were downregulated in the inferior spikelets compared with the superior ones in Mahalaxmi were importin-α, elongation factor 1-β and cell division control protein 48, which are essential for cell cycle progression and cell division. Low expression of these proteins might inhibit endosperm cell division in the inferior spikelets, limiting their sink capacity and leading to poor grain filling compared to that in the superior spikelets. The poor grain filling in Mahalaxmi may also be a result of the high evolution of ethylene in the inferior spikelets, which is reflected from the observation that these spikelets showed significantly higher expression of S-adenosylmethionine synthase and the gene encoding the enzyme than the superior spikelets in this cultivar, but not in Upahar; S-adenosynlmethionine synthase catalyses the synthesis of S-adenosylmethionine, the precursor of ethylene biosynthesis.
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Affiliation(s)
- Kaushik Das
- Environmental Biotechnology Laboratory, Institute of Life Sciences, Nalco Square, Bhubaneswar - 751023, Odisha, India.
| | - Binay B Panda
- Environmental Biotechnology Laboratory, Institute of Life Sciences, Nalco Square, Bhubaneswar - 751023, Odisha, India.
| | - Sudhanshu Sekhar
- Environmental Biotechnology Laboratory, Institute of Life Sciences, Nalco Square, Bhubaneswar - 751023, Odisha, India.
| | - Ekamber Kariali
- School of Life Sciences, Sambalpur University, Sambalpur, Odisha, India.
| | - Pravat K Mohapatra
- School of Life Sciences, Sambalpur University, Sambalpur, Odisha, India.
| | - Birendra P Shaw
- Environmental Biotechnology Laboratory, Institute of Life Sciences, Nalco Square, Bhubaneswar - 751023, Odisha, India.
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35
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Chen L, Huang Y, Xu M, Cheng Z, Zhang D, Zheng J. iTRAQ-Based Quantitative Proteomics Analysis of Black Rice Grain Development Reveals Metabolic Pathways Associated with Anthocyanin Biosynthesis. PLoS One 2016; 11:e0159238. [PMID: 27415428 PMCID: PMC4944901 DOI: 10.1371/journal.pone.0159238] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 06/29/2016] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND Black rice (Oryza sativa L.), whose pericarp is rich in anthocyanins (ACNs), is considered as a healthier alternative to white rice. Molecular species of ACNs in black rice have been well documented in previous studies; however, information about the metabolic mechanisms underlying ACN biosynthesis during black rice grain development is unclear. RESULTS The aim of the present study was to determine changes in the metabolic pathways that are involved in the dynamic grain proteome during the development of black rice indica cultivar, (Oryza sativa L. indica var. SSP). Isobaric tags for relative and absolute quantification (iTRAQ) MS/MS were employed to identify statistically significant alterations in the grain proteome. Approximately 928 proteins were detected, of which 230 were differentially expressed throughout 5 successive developmental stages, starting from 3 to 20 days after flowering (DAF). The greatest number of differentially expressed proteins was observed on 7 and 10 DAF, including 76 proteins that were upregulated and 39 that were downregulated. The biological process analysis of gene ontology revealed that the 230 differentially expressed proteins could be sorted into 14 functional groups. Proteins in the largest group were related to metabolic process, which could be integrated into multiple biochemical pathways. Specifically, proteins with a role in ACN biosynthesis, sugar synthesis, and the regulation of gene expression were upregulated, particularly from the onset of black rice grain development and during development. In contrast, the expression of proteins related to signal transduction, redox homeostasis, photosynthesis and N-metabolism decreased during grain maturation. Finally, 8 representative genes encoding different metabolic proteins were verified via quantitative real-time polymerase chain reaction (qRT-PCR) analysis, these genes had differed in transcriptional and translational expression during grain development. CONCLUSIONS Expression analyses of metabolism-related protein groups belonging to different functional categories and subcategories indicated that significantly upregulated proteins were related to flavonoid and starch synthesis. On the other hand, the downregulated proteins were determined to be related to nitrogen metabolism, as well as other functional categories and subcategories, including photosynthesis, redox homeostasis, tocopherol biosynthetic, and signal transduction. The results provide valuable new insights into the characterization and understanding of ACN pigment production in black rice.
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Affiliation(s)
- Linghua Chen
- FujianAgriculture and Forestry University, Fuzhou Fujian, China
- Jinshan College of Fujian Agriculture and Forestry University, Fuzhou Fujian, China
| | - Yining Huang
- FujianAgriculture and Forestry University, Fuzhou Fujian, China
- Department of Food and Biology Engineering, Zhangzhou Institute of Technology, Zhangzhou Fujian, China
| | - Ming Xu
- FujianAgriculture and Forestry University, Fuzhou Fujian, China
- College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou Fujian, China
| | - Zuxin Cheng
- FujianAgriculture and Forestry University, Fuzhou Fujian, China
- College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou Fujian, China
| | - Dasheng Zhang
- Shanghai Chenshan Plant Science Research Center, Shanghai Chenshan Botanical Garden, Chinese Academy of Sciences, Shanghai, China
- Shanghai Key Laboratory for Plant Functional Genomics and Resources, Shanghai, China
| | - Jingui Zheng
- FujianAgriculture and Forestry University, Fuzhou Fujian, China
- College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou Fujian, China
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Johnová P, Skalák J, Saiz-Fernández I, Brzobohatý B. Plant responses to ambient temperature fluctuations and water-limiting conditions: A proteome-wide perspective. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2016; 1864:916-31. [PMID: 26861773 DOI: 10.1016/j.bbapap.2016.02.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 12/26/2015] [Accepted: 02/04/2016] [Indexed: 12/24/2022]
Abstract
BACKGROUND Every year, environmental stresses such as limited water and nutrient availability, salinity, and temperature fluctuations inflict significant losses on crop yields across the globe. Recently, developments in analytical techniques, e.g. mass spectrometry, have led to great advances towards understanding how plants respond to environmental stresses. These processes are mediated by many molecular pathways and, at least partially, via proteome-environment interactions. SCOPE OF REVIEW This review focuses on the current state of knowledge about interactions between the plant proteome and the environment, with a special focus on drought and temperature responses of plant proteome dynamics, and subcellular and organ-specific compartmentalization, in Arabidopsis thaliana and crop species. MAJOR CONCLUSIONS Correct plant development under non-optimal conditions requires complex self-protection mechanisms, many of them common to different abiotic stresses. Proteome analyses of plant responses to temperature and drought stresses have revealed an intriguing interplay of modifications, mainly affecting the photosynthetic machinery, carbohydrate metabolism, and ROS activation and scavenging. Imbalances between transcript-level and protein-level regulation observed during adaptation to abiotic stresses suggest that many of the regulatory processes are controlled at translational and post-translational levels; proteomics is thus essential in revealing important regulatory networks. GENERAL SIGNIFICANCE Because information from proteomic data extends far beyond what can be deduced from transcriptome analysis, the results of proteome studies have substantially deepened our understanding of stress adaptation in plants; this is clearly a prerequisite for designing strategies to improve the yield and quality of crops grown under unfavorable conditions brought about by ongoing climatic change. This article is part of a Special Issue entitled: Plant Proteomics--a bridge between fundamental processes and crop production, edited by Dr. Hans-Peter Mock.
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Affiliation(s)
- Patricie Johnová
- Laboratory of Plant Molecular Biology, Institute of Biophysics AS CR, v.v.i. and, Mendel University in Brno, CEITEC - Central European Institute of Technology, Mendel University in Brno, Zemědělská 1, CZ-613 00 Brno, Czech Republic.
| | - Jan Skalák
- Laboratory of Plant Molecular Biology, Institute of Biophysics AS CR, v.v.i. and, Mendel University in Brno, CEITEC - Central European Institute of Technology, Mendel University in Brno, Zemědělská 1, CZ-613 00 Brno, Czech Republic.
| | - Iñigo Saiz-Fernández
- Laboratory of Plant Molecular Biology, Institute of Biophysics AS CR, v.v.i. and, Mendel University in Brno, CEITEC - Central European Institute of Technology, Mendel University in Brno, Zemědělská 1, CZ-613 00 Brno, Czech Republic.
| | - Břetislav Brzobohatý
- Laboratory of Plant Molecular Biology, Institute of Biophysics AS CR, v.v.i. and, Mendel University in Brno, CEITEC - Central European Institute of Technology, Mendel University in Brno, Zemědělská 1, CZ-613 00 Brno, Czech Republic.
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37
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Butardo VM, Sreenivasulu N. Tailoring Grain Storage Reserves for a Healthier Rice Diet and its Comparative Status with Other Cereals. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2016; 323:31-70. [DOI: 10.1016/bs.ircmb.2015.12.003] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Gel-free/label-free proteomic analysis of developing rice grains under heat stress. J Proteomics 2015; 133:1-19. [PMID: 26655677 DOI: 10.1016/j.jprot.2015.12.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Revised: 11/21/2015] [Accepted: 12/03/2015] [Indexed: 11/23/2022]
Abstract
UNLABELLED High temperature markedly reduces the yields and quality of rice grains. To identify the mechanisms underlying heat stress-induced responses in rice grains, proteomic technique was used. Developing Khao Dawk Mali 105 rice grains at the milky, dough, and mature stages were treated at 40 °C for 3 days. Aromatic compounds were decreased in rice grains under heat stress. The protein abundance involved in glycolysis and tricarboxylic acid cycle, including glyceraldehyde 3-phosphate dehydrogenase and citrate synthase, was changed in milky and dough grains after heat treatment; however, none changes in mature grains. The abundance involved in amino acid metabolism was increased in dough grains, but decreased in milky grains. In addition, the abundance involved in starch and sucrose metabolism, such as starch synthase, ADP-glucose pyrophosphorylase, granule-bound starch synthase, and alpha amylase, was decreased in milky grains, but increased in dough grains. A number of redox homeostasis-related proteins, such as ascorbate peroxidase and peroxiredoxin, were increased in developing rice grains treated with heat stress. These results suggest that in response to heat stress, the abundance of numerous proteins involved in redox homeostasis and carbohydrate biosynthetic pathways may play a major role in the development of KDML105 rice grains. BIOLOGICAL SIGNIFICANCE Yield of Khao Dawk Mali 105 rice, which is an economical aromatic rice, was disrupted by environmental stress. Rice grains developed under heat stress caused loss of aroma compound. To identify the mechanism of heat response in rice grain, gel-free/label-free proteomic technique was used. The abundance of proteins involved in glycolysis and tricarboxylic acid cycle was disrupted by heat stress. High temperature limited starch biosynthesis; however, it enhanced sugar biosynthesis in developing rice grains. Redox homeostasis related proteins were disrupted by heat stress. These results suggest that proteins involved in redox homeostasis and carbohydrate pathway might play a major role in developing grains in Khao Dawk Mali 105 rice under heat stress.
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39
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Quantitative Shotgun Proteomics Analysis of Rice Anther Proteins after Exposure to High Temperature. Int J Genomics 2015; 2015:238704. [PMID: 26618163 PMCID: PMC4651674 DOI: 10.1155/2015/238704] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 10/17/2015] [Accepted: 10/18/2015] [Indexed: 01/07/2023] Open
Abstract
In rice, the stage of development most sensitive to high temperature stress is flowering, and exposure at this stage can result in spikelet sterility, thereby leading to significant yield losses. In this study, protein expression patterns of rice anthers from Dianxi4, a high temperature tolerant Japonica rice variety, were compared between samples exposed to high temperature and those grown in natural field conditions in Korea. Shotgun proteomics analysis of three replicate control and high-temperature-treated samples identified 3,266 nonredundant rice anther proteins (false discovery rate < 0.01). We found that high levels of ATP synthase, cupin domain-containing proteins, and pollen allergen proteins were present in rice anthers. Comparative analyses of 1,944 reproducibly expressed proteins identified 139 differentially expressed proteins, with 95 increased and 44 decreased in response to high temperature conditions. Heat shock, DnaK family, and chaperone proteins showed highly increased expression, suggesting that the high temperature tolerance of Dianxi4 is achieved by stabilization of proteins in pollen cells. Trehalose synthase was also highly increased after heat treatment, suggesting a possible role for trehalose in preventing protein denaturation through desiccation.
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40
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Yang J, Kim SR, Lee SK, Choi H, Jeon JS, An G. Alanine aminotransferase 1 (OsAlaAT1) plays an essential role in the regulation of starch storage in rice endosperm. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2015; 240:79-89. [PMID: 26475189 DOI: 10.1016/j.plantsci.2015.07.027] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 07/29/2015] [Accepted: 07/29/2015] [Indexed: 06/05/2023]
Abstract
Alteration of storage substances, in particular the major storage form starch, leads to floury endosperm. Because floury mutants have physical attributes for milling processes, identification and characterization of those mutants are valuable. In this study we identified a floury endosperm mutant caused by a T-DNA insertion in Oryza sativa alanine-aminotransferase1 (OsAlaAT1). OsAlaAT1 is localized in the cytosol and has aminotransferase enzyme activity. The osalaat1 mutant has less amylose and its amylopectin is structurally altered. OsAlaAT1 is predominantly expressed in developing seeds during active starch synthesis. AlaAT catalyzes the interconversion of pyruvate to alanine, and this pathway is activated under low-oxygen conditions. Consistently, OsAlaAT1 is induced by such conditions. Expression of the starch synthesis genes AGPases, OsSSI, OsSSIIa, and OsPPDKB is decreased in the mutant. Thus, our observations suggest that OsAlaAT1 plays an essential role in starch synthesis in developing seeds that are exposed to low concentrations of oxygen.
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Affiliation(s)
- Jungil Yang
- Crop Biotech Institute & Department of Plant Molecular Systems Biotechnology, Kyung Hee University, Yongin 446-701, Republic of Korea
| | - Sung-Ryul Kim
- Plant Breeding, Genetics and Biotechnology Division, International Rice Research Institute, Metro Manila, Philippines
| | - Sang-Kyu Lee
- Crop Biotech Institute & Department of Plant Molecular Systems Biotechnology, Kyung Hee University, Yongin 446-701, Republic of Korea; Department of Genetic Engineering, Kyung Hee University, Yongin 446-701, Republic of Korea
| | - Heebak Choi
- Crop Biotech Institute & Department of Plant Molecular Systems Biotechnology, Kyung Hee University, Yongin 446-701, Republic of Korea; Department of Life Science, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea
| | - Jong-Seong Jeon
- Crop Biotech Institute & Department of Plant Molecular Systems Biotechnology, Kyung Hee University, Yongin 446-701, Republic of Korea; Department of Genetic Engineering, Kyung Hee University, Yongin 446-701, Republic of Korea
| | - Gynheung An
- Crop Biotech Institute & Department of Plant Molecular Systems Biotechnology, Kyung Hee University, Yongin 446-701, Republic of Korea; Department of Genetic Engineering, Kyung Hee University, Yongin 446-701, Republic of Korea.
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Proteomic changes in rice leaves grown under open field high temperature stress conditions. Mol Biol Rep 2015; 42:1545-58. [PMID: 26323334 DOI: 10.1007/s11033-015-3923-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 08/25/2015] [Indexed: 12/18/2022]
Abstract
The interactive effect of temperature with other climatic and soil factors has profound influences on the growth and development of rice. The responses of rice to high temperatures under field conditions are more important than those under the controlled conditions. To understand the genes associated with high temperature stress response in general and tolerance in particular, the expression of all those genes associated with adaptation and tolerance in rice requires proteomic analysis. High temperature stress-tolerant cv. N22 was subjected to 28/18 °C (control) and 42/32 °C (high temperature stress) at flowering stage. The plants were grown in the field under the free air temperature increment condition. The proteomic changes in rice leaves due to high temperature stress were discussed. The proteomes of leaves had about 3000 protein spots, reproducibly detected on 2-dimensional electrophoretic gels with 573 proteins differentially expressed between the control and the high temperature treatments. Putative physiological functions suggested five categories such as growth (15.4%), heat shock proteins (7.7%), regulatory proteins (26.9%), redox homeostasis proteins (11.5%) and energy and metabolism (38.5%) related proteins. The results of the present study suggest that cv. N22, an agronomically recognized temperature tolerant rice cultivar copes with high temperature stress in a complex manner. Several functional proteins play important roles in its responses. The predicted climate change events necessitate more studies using this cultivar under different simulated ecological conditions to identify proteomic changes and the associated genes to be used as biomarkers and to gain a better understanding on the biochemical pathways involved in tolerance.
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42
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Wang ZM, Li HX, Liu XF, He Y, Zeng HL. Reduction of pyruvate orthophosphate dikinase activity is associated with high temperature-induced chalkiness in rice grains. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2015; 89:76-84. [PMID: 25725409 DOI: 10.1016/j.plaphy.2015.02.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Accepted: 02/18/2015] [Indexed: 05/01/2023]
Abstract
Global warming affects both rice (Oryza sativa) yields and grain quality. Rice chalkiness due to high temperature during grain filling would lower the grain quality. The biochemical and molecular mechanisms responsible for the increased occurrence of chalkiness under high temperature are not fully understood. Previous research suggested that cytosolic pyruvate orthophosphate dikinase (cyPPDK, EC 2.7.9.1) in rice modulates carbon metabolism. The objective of this study was to determine the relationship between cyPPDK and high temperature-induced chalkiness. High temperature treatments were applied during the grain filling of two rice cultivars (9311 and TXZ-25) which had different sensitivity of chalkiness to high temperature. Chalkiness was increased significantly under high temperature treatment, especially for TXZ-25. A shortened grain filling duration and a decreased grain weight in both cultivars were caused by high temperature treatment. A reduction in PPDK activities due to high temperature was observed during the middle and late grain filling periods, accompanied by down regulated cyPPDK mRNA and protein levels. The temperature effects on the developmental regulation of PPDK activity were confirmed at transcription, translation and post-translational levels. PPDK activities were insensitive to variation in PPDK levels, suggesting the rapid phosphorylation mechanism of this protein. The two varieties showed similar responses to the high temperature treatment in both PPDK activities and chalkiness. We concluded that high temperature-induced chalkiness was associated with the reduction of PPDK activity.
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Affiliation(s)
- Zhen-mei Wang
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Hai-xia Li
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiong-feng Liu
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Ying He
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Han-lai Zeng
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
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43
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Lin KH, Chen LFO, Li SD, Lo HF. Comparative proteomic analysis of cauliflower under high temperature and flooding stresses. SCIENTIA HORTICULTURAE 2015; 183:118-129. [PMID: 32287882 PMCID: PMC7116940 DOI: 10.1016/j.scienta.2014.12.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 11/15/2014] [Accepted: 12/13/2014] [Indexed: 05/04/2023]
Abstract
High-temperature and waterlogging are major abiotic stresses that affect the yield and quality of cauliflower. Cauliflower cultivars 'H41' and 'H69' are tolerant to high temperature and flooding, respectively; however, 'H71' is sensitive to both stresses. The objectives of this study were to identify the proteins that were differentially regulated and the physiological changes that occurred during different time periods in 'H41', 'H69', and 'H71' when responding to treatments of flooding, 40 °C, and both stresses combined. Changes in the leaf proteome were analyzed by matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF-MS) and identified by Mascot peptide mass fingerprint (PMF) and database searching. Stress treatments caused significant reductions in electrolyte leakage, chlorophyll fluorescence Fv/Fm, chlorophyll content, and water potential as stress times were prolonged. By the comparative proteomic analysis, 85 protein peaks that were differentially expressed in response to combination treatments at 0, 6, and 24 h, 69 (33 in 'H41', 29 in 'H69', and 9 in 'H71') were identified, of which were cultivar specific. Differentially regulated proteins predominantly functioned in photosynthesis and to a lesser extent in energy metabolism, cellular homeostasis, transcription and translation, signal transduction, and protein biosynthesis. This is the first report that utilizes proteomics to discover changes in the protein expression profile of cauliflower in response to heat and flooding.
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Affiliation(s)
- K H Lin
- Graduate Institute of Biotechnology, Chinese Culture University, Taipei 111, Taiwan
| | - L F O Chen
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei 115, Taiwan
| | - S D Li
- Graduate Institute of Biotechnology, Chinese Culture University, Taipei 111, Taiwan
| | - H F Lo
- Department of Horticulture and Landscape Architecture, National Taiwan University, Taipei 106, Taiwan
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44
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Kumar A, Bimolata W, Kannan M, Kirti PB, Qureshi IA, Ghazi IA. Comparative proteomics reveals differential induction of both biotic and abiotic stress response associated proteins in rice during Xanthomonas oryzae pv. oryzae infection. Funct Integr Genomics 2015; 15:425-37. [PMID: 25648443 DOI: 10.1007/s10142-014-0431-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 12/13/2014] [Accepted: 12/25/2014] [Indexed: 01/16/2023]
Abstract
Xanthomonas oryzae pv. oryzae (Xoo) causes bacterial blight disease in rice and brutally affects the yield up to 50 % of total production. Here, we report a comparative proteomics analysis of total foliar protein isolated from infected rice leaves of susceptible Pusa Basmati 1 (PB1) and resistant Oryza longistaminata genotypes. Two-dimensional gel electrophoresis (2-DE) coupled with matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) approaches identified 29 protein spots encoding unique proteins from both the genotypes. Identified proteins belonged to a large number of biological and molecular functions related to biotic and abiotic stress proteins which are potentially involved during Xoo infection. Biotic and abiotic stress-related proteins were induced during Xoo infection, indicating the activation of common stress pathway during bacterial blight infection. Candidate genes conferring tolerance against bacterial blight, which include germin-like protein, putative r40c1, cyclin-dependent kinase C, Ent-isokaur-15-ene synthase and glutathione-dependent dehydroascorbate reductase 1 (GSH-DHAR1), were also induced, with germin-like proteins induced only in the resistant rice genotype O. longistaminata. Energy, metabolism and hypothetical proteins were common among both the genotypes. Further, host defence/stress-related proteins were mostly expressed in resistant genotype O. longistaminata, indicating possible co-evolution of the pathogen and the wild rice, O. longistaminata.
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Affiliation(s)
- Anirudh Kumar
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Prof. C. R. Rao Road, Hyderabad, 500046, India
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45
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Jiang C, Cheng Z, Zhang C, Yu T, Zhong Q, Shen JQ, Huang X. Proteomic analysis of seed storage proteins in wild rice species of the Oryza genus. Proteome Sci 2014; 12:51. [PMID: 25505850 PMCID: PMC4263040 DOI: 10.1186/s12953-014-0051-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Accepted: 09/30/2014] [Indexed: 11/18/2022] Open
Abstract
Background The total protein contents of rice seeds are significantly higher in the three wild rice species (Oryza rufipogon Grill., Oryza officinalis Wall. and Oryza meyeriana Baill.) than in the cultivated rice (Oryza sativa L.). However, there is still no report regarding a systematic proteomic analysis of seed proteins in the wild rice species. Also, the relationship between the contents of seed total proteins and rice nutritional quality has not been thoroughly investigated. Results The total seed protein contents, especially the glutelin contents, of the three wild rice species were higher than those of the two cultivated rice materials. Based on the protein banding patterns of SDS-PAGE, O. rufipogon was similar to the two cultivated rice materials, followed by O. officinalis, while O. meyeriana exhibited notable differences. Interestingly, O. meyeriana had high contents of glutelin and low contents of prolamine, and lacked 26 kDa globulin band and appeared a new 28 kDa protein band. However, for O. officinali a 16 kDa protein band was absent and a row of unique 32 kDa proteins appeared. In addition, we found that 13 kDa prolamine band disappeared while special 14 kDa and 12 kDa protein bands were present in O. officinalis. Two-dimensional gel electrophoresis (2-DE) analysis revealed remarkable differences in protein profiles of the wild rice species and the two cultivated rice materials. Also, the numbers of detected protein spots of the three wild rice species were significantly higher than those of two cultivated rice. A total of 35 differential protein spots were found for glutelin acidic subunits, glutelin precursors and glutelin basic subunits in wild rice species. Among those, 18 protein spots were specific and 17 major spots were elevated. Six differential protein spots for glutelin acidic subunits were identified, including a glutelin type-A 2 precursor and five hypothetical proteins. Conclusion This was the first report on proteomic analysis of the three wild rice species. Overall results suggest that there were many new types of glutelin subunits and precursor in the three wild rice species. Hence, wild rice species are important genetic resources for improving nutritional quality to rice. Electronic supplementary material The online version of this article (doi:10.1186/s12953-014-0051-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Chunmiao Jiang
- College of Life Science, Yunnan University, Kunming, Yunnan 650031 P.R. China.,Biotechnology & Genetic Germplasm Institute, Yunnan Academy of Agricultural Sciences, Kunming, Yunnan 650223 P.R. China
| | - Zaiquan Cheng
- Biotechnology & Genetic Germplasm Institute, Yunnan Academy of Agricultural Sciences, Kunming, Yunnan 650223 P.R. China
| | - Cheng Zhang
- College of Life Science, Yunnan University, Kunming, Yunnan 650031 P.R. China
| | - Tengqiong Yu
- Biotechnology & Genetic Germplasm Institute, Yunnan Academy of Agricultural Sciences, Kunming, Yunnan 650223 P.R. China
| | - Qiaofang Zhong
- Biotechnology & Genetic Germplasm Institute, Yunnan Academy of Agricultural Sciences, Kunming, Yunnan 650223 P.R. China
| | - J Qingxi Shen
- School of Life Science, University of Nevada, Las vegas, USA
| | - Xingqi Huang
- College of Life Science, Yunnan University, Kunming, Yunnan 650031 P.R. China.,Biotechnology & Genetic Germplasm Institute, Yunnan Academy of Agricultural Sciences, Kunming, Yunnan 650223 P.R. China
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Cerný M, Jedelský PL, Novák J, Schlosser A, Brzobohatý B. Cytokinin modulates proteomic, transcriptomic and growth responses to temperature shocks in Arabidopsis. PLANT, CELL & ENVIRONMENT 2014; 37:1641-55. [PMID: 24393122 DOI: 10.1111/pce.12270] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Revised: 12/27/2013] [Accepted: 12/30/2013] [Indexed: 05/18/2023]
Abstract
As sessile organisms, plants must sense environmental conditions and adjust their growth and development processes accordingly, through adaptive responses regulated by various internal factors, including hormones. A key environmental factor is temperature, but temperature-sensing mechanisms are not fully understood despite intense research. We investigated proteomic responses to temperature shocks (15 min cold or heat treatments) with and without exogenous applications of cytokinin in Arabidopsis. Image and mass spectrometric analysis of the two-dimensionally separated proteins detected 139 differentially regulated spots, in which 148 proteins were identified, most of which have not been previously linked to temperature perception. More than 70% of the temperature-shock response proteins were modulated by cytokinin, mostly in a similar manner as heat shock. Data mining of previous transcriptomic datasets supported extensive interactions between temperature and cytokinin signalling. The biological significance of this finding was tested by assaying an independent growth response of Arabidopsis seedlings to heat stress: hypocotyl elongation. This response was strongly inhibited in mutants with deficiencies in cytokinin signalling or endogenous cytokinin levels. Thus, cytokinins may directly participate in heat signalling in plants. Finally, large proportions of both temperature-shock and cytokinin responsive proteomes co-localize to the chloroplast, which might therefore host a substantial proportion of the temperature response machinery.
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Affiliation(s)
- Martin Cerný
- Laboratory of Plant Molecular Biology, Institute of Biophysics AS CR, v.v.i and CEITEC - Central European Institute of Technology, Mendel University in Brno, CZ-613 00, Brno, Czech Republic
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47
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Dorion S, Rivoal J. Clues to the functions of plant NDPK isoforms. Naunyn Schmiedebergs Arch Pharmacol 2014; 388:119-32. [PMID: 24964975 DOI: 10.1007/s00210-014-1009-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2014] [Accepted: 06/15/2014] [Indexed: 12/20/2022]
Abstract
This review describes the five nucleoside diphosphate kinase (NDPK) genes found in both model plants Arabidopsis thaliana (thale cress) and Oryza sativa L. (rice). Phylogenetic and sequence analyses of these genes allow the definition of four types of NDPK isoforms with different predicted subcellular localization. These predictions are supported by experimental evidence for most NDPK types. Data mining also provides evidence for the existence of a novel NDPK type putatively localized in the endoplasmic reticulum. Phylogenic analyses indicate that plant types I, II, and III belong to the previously identified Nme group I whereas type IV belongs to Nme group II. Additional analysis of the literature offers clues supporting the idea that the various plant NDPK types have different functions. Hence, cytosolic type I NDPKs are involved in metabolism, growth, and stress responses. Type II NDPKs are localized in the chloroplast and mainly involved in photosynthetic development and oxidative stress management. Type III NDPKs have dual targeting to the mitochondria and the chloroplast and are principally involved in energy metabolism. The subcellular localization and precise function of the novel type IV NDPKs, however, will require further investigations.
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Affiliation(s)
- Sonia Dorion
- IRBV, Université de Montréal, 4101 rue Sherbrooke est, Montréal, QC, H1X 2B2, Canada
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48
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Lin Z, Zhang X, Yang X, Li G, Tang S, Wang S, Ding Y, Liu Z. Proteomic analysis of proteins related to rice grain chalkiness using iTRAQ and a novel comparison system based on a notched-belly mutant with white-belly. BMC PLANT BIOLOGY 2014; 14:163. [PMID: 24924297 PMCID: PMC4072481 DOI: 10.1186/1471-2229-14-163] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Accepted: 06/06/2014] [Indexed: 05/19/2023]
Abstract
BACKGROUND Grain chalkiness is a complex trait adversely affecting appearance and milling quality, and therefore has been one of principal targets for rice improvement. Eliminating chalkiness from rice has been a daunting task due to the complex interaction between genotype and environment and the lack of molecular markers. In addition, the molecular mechanisms underlying grain chalkiness formation are still imperfectly understood. RESULTS We identified a notched-belly mutant (DY1102) with high percentage of white-belly, which only occurs in the bottom part proximal to the embryo. Using this mutant, a novel comparison system that can minimize the effect of genetic background and growing environment was developed. An iTRAQ-based comparative display of the proteins between the bottom chalky part and the upper translucent part of grains of DY1102 was performed. A total of 113 proteins responsible for chalkiness formation was identified. Among them, 70 proteins are up-regulated and 43 down-regulated. Approximately half of these differentially expressed proteins involved in central metabolic or regulatory pathways including carbohydrate metabolism (especially cell wall synthesis) and protein synthesis, folding and degradation, providing proteomic confirmation of the notion that chalkiness formation involves diverse but delicately regulated pathways. Protein metabolism was the most abundant category, accounting for 27.4% of the total differentially expressed proteins. In addition, down regulation of PDIL 2-3 and BiP was detected in the chalky tissue, indicating the important role of protein metabolism in grain chalkiness formation. CONCLUSIONS Using this novel comparison system, our comprehensive survey of endosperm proteomics in the notched-belly mutant provides a valuable proteomic resource for the characterization of pathways contributing to chalkiness formation at molecular and biochemical levels.
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Affiliation(s)
- Zhaomiao Lin
- College of Agronomy, Nanjing Agricultural University/Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing 210095, PR China
| | - Xincheng Zhang
- College of Agronomy, Nanjing Agricultural University/Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing 210095, PR China
| | - Xiaoyu Yang
- College of Agronomy, Nanjing Agricultural University/Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing 210095, PR China
| | - Ganghua Li
- College of Agronomy, Nanjing Agricultural University/Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing 210095, PR China
| | - She Tang
- College of Agronomy, Nanjing Agricultural University/Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing 210095, PR China
| | - Shaohua Wang
- College of Agronomy, Nanjing Agricultural University/Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing 210095, PR China
| | - Yanfeng Ding
- College of Agronomy, Nanjing Agricultural University/Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing 210095, PR China
- Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing 210095, PR China
| | - Zhenghui Liu
- College of Agronomy, Nanjing Agricultural University/Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing 210095, PR China
- Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing 210095, PR China
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49
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Evaluation of Extraction Solutions for Biochemical Analyses of the Proteins in Rice Grains. Biosci Biotechnol Biochem 2014; 77:126-31. [DOI: 10.1271/bbb.120617] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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50
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Liu GT, Ma L, Duan W, Wang BC, Li JH, Xu HG, Yan XQ, Yan BF, Li SH, Wang LJ. Differential proteomic analysis of grapevine leaves by iTRAQ reveals responses to heat stress and subsequent recovery. BMC PLANT BIOLOGY 2014; 14:110. [PMID: 24774513 PMCID: PMC4108046 DOI: 10.1186/1471-2229-14-110] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 04/17/2014] [Indexed: 05/18/2023]
Abstract
BACKGROUND High temperature is a major environmental factor limiting grape yield and affecting berry quality. Thermotolerance includes the direct response to heat stress and the ability to recover from heat stress. To better understand the mechanism of the thermotolerance of Vitis, we combined a physiological analysis with iTRAQ-based proteomics of Vitis vinifera cv Cabernet Sauvignon, subjected to 43°C for 6 h, and then followed by recovery at 25/18°C. RESULTS High temperature increased the concentrations of TBARS and inhibited electronic transport in photosynthesis apparatus, indicating that grape leaves were damaged by heat stress. However, these physiological changes rapidly returned to control levels during the subsequent recovery phase from heat stress. One hundred and seventy-four proteins were differentially expressed under heat stress and/or during the recovery phase, in comparison to unstressed controls, respectively. Stress and recovery conditions shared 42 proteins, while 113 and 103 proteins were respectively identified under heat stress and recovery conditions alone. Based on MapMan ontology, functional categories for these dysregulated proteins included mainly photosynthesis (about 20%), proteins (13%), and stress (8%). The subcellular localization using TargetP showed most proteins were located in the chloroplasts (34%), secretory pathways (8%) and mitochondrion (3%). CONCLUSION On the basis of these findings, we proposed that some proteins related to electron transport chain of photosynthesis, antioxidant enzymes, HSPs and other stress response proteins, and glycolysis may play key roles in enhancing grapevine adaptation to and recovery capacity from heat stress. These results provide a better understanding of the proteins involved in, and mechanisms of thermotolerance in grapevines.
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Affiliation(s)
- Guo-Tian Liu
- Key laboratory of Plant Resources and Beijing Key Laboratory of Grape Science and Enology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, P. R., China
- University of China Academy of Sciences, Beijing 100049, P. R., China
| | - Ling Ma
- Key laboratory of Plant Resources and Beijing Key Laboratory of Grape Science and Enology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, P. R., China
- University of China Academy of Sciences, Beijing 100049, P. R., China
| | - Wei Duan
- Key laboratory of Plant Resources and Beijing Key Laboratory of Grape Science and Enology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, P. R., China
| | - Bai-Chen Wang
- Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, P. R., China
| | - Ji-Hu Li
- Key laboratory of Plant Resources and Beijing Key Laboratory of Grape Science and Enology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, P. R., China
- University of China Academy of Sciences, Beijing 100049, P. R., China
| | - Hong-Guo Xu
- Key laboratory of Plant Resources and Beijing Key Laboratory of Grape Science and Enology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, P. R., China
| | - Xue-Qing Yan
- Beijing Computing Center, Beijing 100094, P. R. China
| | - Bo-Fang Yan
- Key laboratory of Plant Resources and Beijing Key Laboratory of Grape Science and Enology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, P. R., China
- University of China Academy of Sciences, Beijing 100049, P. R., China
| | - Shao-Hua Li
- Key laboratory of Plant Resources and Beijing Key Laboratory of Grape Science and Enology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, P. R., China
- Key laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botany Garden, Chinese Academy of Sciences, Wuhan 430074, P. R., China
| | - Li-Jun Wang
- Key laboratory of Plant Resources and Beijing Key Laboratory of Grape Science and Enology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, P. R., China
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