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Suranjika S, Barla P, Sharma N, Dey N. A review on ubiquitin ligases: Orchestrators of plant resilience in adversity. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 347:112180. [PMID: 38964613 DOI: 10.1016/j.plantsci.2024.112180] [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: 04/09/2024] [Revised: 06/19/2024] [Accepted: 07/01/2024] [Indexed: 07/06/2024]
Abstract
Ubiquitin- proteasome system (UPS) is universally present in plants and animals, mediating many cellular processes needed for growth and development. Plants constantly defend themselves against endogenous and exogenous stimuli such as hormonal signaling, biotic stresses such as viruses, fungi, nematodes, and abiotic stresses like drought, heat, and salinity by developing complex regulatory mechanisms. Ubiquitination is a regulatory mechanism involving selective elimination and stabilization of regulatory proteins through the UPS system where E3 ligases play a central role; they can bind to the targets in a substrate-specific manner, followed by poly-ubiquitylation, and subsequent protein degradation by 26 S proteasome. Increasing evidence suggests different types of E3 ligases play important roles in plant development and stress adaptation. Herein, we summarize recent advances in understanding the regulatory roles of different E3 ligases and primarily focus on protein ubiquitination in plant-environment interactions. It also highlights the diversity and complexity of these metabolic pathways that enable plant to survive under challenging conditions. This reader-friendly review provides a comprehensive overview of E3 ligases and their substrates associated with abiotic and biotic stresses that could be utilized for future crop improvement.
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Affiliation(s)
- Sandhya Suranjika
- Institute of Life Sciences (ILS), an autonomous institute under Department of Biotechnology Government of India, NALCO Square, Bhubaneswar, Odisha, India; Department of Biotechnology, Kalinga Institute of Industrial Technology (KIIT), KIIT Road, Patia, Bhubaneswar, Odisha, India
| | - Preeti Barla
- Institute of Life Sciences (ILS), an autonomous institute under Department of Biotechnology Government of India, NALCO Square, Bhubaneswar, Odisha, India
| | - Namisha Sharma
- Institute of Life Sciences (ILS), an autonomous institute under Department of Biotechnology Government of India, NALCO Square, Bhubaneswar, Odisha, India
| | - Nrisingha Dey
- Institute of Life Sciences (ILS), an autonomous institute under Department of Biotechnology Government of India, NALCO Square, Bhubaneswar, Odisha, India.
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2
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Li B, Zhou X, Yao W, Lin J, Ding X, Chen Q, Huang H, Chen W, Huang X, Pan S, Xiao Y, Liu J, Liu X, Liu J. NADP-malic Enzyme OsNADP-ME2 Modulates Plant Height Involving in Gibberellin Signaling in Rice. RICE (NEW YORK, N.Y.) 2024; 17:52. [PMID: 39152344 PMCID: PMC11329442 DOI: 10.1186/s12284-024-00729-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 08/06/2024] [Indexed: 08/19/2024]
Abstract
Plants NADP-malic enzymes (NADP-MEs) act as a class of oxidative decarboxylase to mediate malic acid metabolism in organisms. Despite NADP-MEs have been demonstrated to play pivotal roles in regulating diverse biological processes, the role of NADP-MEs involving in plant growth and development remains rarely known. Here, we characterized the function of rice cytosolic OsNADP-ME2 in regulating plant height. The results showed that RNAi silencing and knock-out of OsNADP-ME2 in rice results in a dwarf plant structure, associating with significant expression inhibition of genes involving in phytohormone Gibberellin (GA) biosynthesis and signaling transduction, but with up-regulation for the expression of GA signaling suppressor SLR1. The accumulation of major bioactive GA1, GA4 and GA7 are evidently altered in RNAi lines, and exogenous GA treatment compromises the dwarf phenotype of OsNADP-ME2 RNAi lines. RNAi silencing of OsNADP-ME2 also causes the reduction of NADP-ME activity associating with decreased production of pyruvate. Thus, our data revealed a novel function of plant NADP-MEs in modulation of rice plant height through regulating bioactive GAs accumulation and GA signaling, and provided a valuable gene resource for rice plant architecture improvement.
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Affiliation(s)
- Bing Li
- Hunan Provincial Key Laboratory of Crop Gene Engineering, College of Agronomy, Hunan Agricultural University, Changsha, 410128, China
| | - Xiaolong Zhou
- Hunan Provincial Key Laboratory of Crop Gene Engineering, College of Agronomy, Hunan Agricultural University, Changsha, 410128, China
| | - Wei Yao
- Hunan Provincial Key Laboratory of Crop Gene Engineering, College of Agronomy, Hunan Agricultural University, Changsha, 410128, China
| | - Jinjun Lin
- Hunan Provincial Key Laboratory of Crop Gene Engineering, College of Agronomy, Hunan Agricultural University, Changsha, 410128, China
| | - Xiaowen Ding
- Hunan Provincial Key Laboratory of Crop Gene Engineering, College of Agronomy, Hunan Agricultural University, Changsha, 410128, China
| | - Qianru Chen
- Hunan Provincial Key Laboratory of Crop Gene Engineering, College of Agronomy, Hunan Agricultural University, Changsha, 410128, China
| | - Hao Huang
- Hunan Provincial Key Laboratory of Crop Gene Engineering, College of Agronomy, Hunan Agricultural University, Changsha, 410128, China
| | - Wenfeng Chen
- Hunan Provincial Key Laboratory of Crop Gene Engineering, College of Agronomy, Hunan Agricultural University, Changsha, 410128, China
| | - Xilai Huang
- Hunan Provincial Key Laboratory of Crop Gene Engineering, College of Agronomy, Hunan Agricultural University, Changsha, 410128, China
| | - Sujun Pan
- Hunan Provincial Key Laboratory of Crop Gene Engineering, College of Agronomy, Hunan Agricultural University, Changsha, 410128, China
| | - Yinghui Xiao
- Hunan Provincial Key Laboratory of Crop Gene Engineering, College of Agronomy, Hunan Agricultural University, Changsha, 410128, China
| | - Jianfeng Liu
- Hunan Provincial Key Laboratory of Crop Gene Engineering, College of Agronomy, Hunan Agricultural University, Changsha, 410128, China
| | - Xionglun Liu
- Hunan Provincial Key Laboratory of Crop Gene Engineering, College of Agronomy, Hunan Agricultural University, Changsha, 410128, China.
| | - Jinling Liu
- Hunan Provincial Key Laboratory of Crop Gene Engineering, College of Agronomy, Hunan Agricultural University, Changsha, 410128, China.
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3
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Xu X, Shi X, You X, Hao Z, Wang R, Wang M, He F, Peng S, Tao H, Liu Z, Wang J, Zhang C, Feng Q, Wu W, Wang GL, Ning Y. A pair of E3 ubiquitin ligases control immunity and flowering by targeting different ELF3 proteins in rice. Dev Cell 2024:S1534-5807(24)00391-5. [PMID: 39025063 DOI: 10.1016/j.devcel.2024.06.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 04/19/2024] [Accepted: 06/19/2024] [Indexed: 07/20/2024]
Abstract
The ubiquitin-proteasome system (UPS) plays crucial roles in cellular processes including plant growth, development, and stress responses. In this study, we report that a pair of E3 ubiquitin ligases, AvrPiz-t-interaction protein 6 (APIP6) and IPA1-interaction protein 1 (IPI1), intricately target early flowering3 (ELF3) paralogous proteins to control rice immunity and flowering. APIP6 forms homo-oligomers or hetero-oligomers with IPI1. Both proteins interact with OsELF3-2, promoting its degradation to positively control resistance against the rice blast fungus (Magnaporthe oryzae). Intriguingly, overexpression of IPI1 in Nipponbare caused significantly late-flowering phenotypes similar to the oself3-1 mutant. Except for late flowering, oself3-1 enhances resistance against M. oryzae. IPI1 also interacts with and promotes the degradation of OsELF3-1, a paralog of OsELF3-2. Notably, IPI1 and APIP6 synergistically modulate OsELF3s degradation, finely tuning blast disease resistance by targeting OsELF3-2, while IPI1 controls both disease resistance and flowering by targeting OsELF3-1. This study unravels multiple functions for a pair of E3 ligases in rice.
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Affiliation(s)
- Xiao Xu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Agro-Biotechnology and Ministry of Agriculture Key Laboratory of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing 100193, China
| | - Xuetao Shi
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xiaoman You
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Zeyun Hao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Ruyi Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Min Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Feng He
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Shasha Peng
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Hui Tao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Zheng Liu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Jisong Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Chongyang Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Qin Feng
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Department of Plant Pathology, The Ohio State University, Columbus, OH 43210, USA
| | - Weixun Wu
- China National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 311400, China
| | - Guo-Liang Wang
- Department of Plant Pathology, The Ohio State University, Columbus, OH 43210, USA
| | - Yuese Ning
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
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Yan Y, Wang H, Bi Y, Wang J, Noman M, Li D, Song F. OsATL32 ubiquitinates the reactive oxygen species-producing OsRac5-OsRbohB module to suppress rice immunity. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2024; 66:1459-1480. [PMID: 38629772 DOI: 10.1111/jipb.13666] [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: 10/29/2023] [Accepted: 03/21/2024] [Indexed: 07/12/2024]
Abstract
Ubiquitination-mediated protein degradation is integral to plant immunity, with E3 ubiquitin ligases acting as key factors in this process. Here, we report the functions of OsATL32, a plasma membrane-localized Arabidopsis Tóxicos En Levadura (ATL)-type E3 ubiquitin ligase, in rice (Oryza sativa) immunity and its associated regulatory network. We found that the expression of OsATL32 is downregulated in both compatible and incompatible interactions between rice and the rice blast fungus Magnaporthe oryzae. The OsATL32 protein level declines in response to infection by a compatible M. oryzae strain or to chitin treatment. OsATL32 negatively regulates rice resistance to blast and bacterial leaf blight diseases, as well as chitin-triggered immunity. Biochemical and genetic studies revealed that OsATL32 suppresses pathogen-induced reactive oxygen species (ROS) accumulation by mediating ubiquitination and degradation of the ROS-producing OsRac5-OsRbohB module, which enhances rice immunity against M. oryzae. The protein phosphatase PHOSPHATASE AND TENSIN HOMOLOG enhances rice blast resistance by dephosphorylating OsATL32 and promoting its degradation, preventing its negative effect on rice immunity. This study provides insights into the molecular mechanism by which the E3 ligase OsATL32 targets a ROS-producing module to undermine rice immunity.
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Affiliation(s)
- Yuqing Yan
- National Key Laboratory for Rice Biology and Breeding, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Hui Wang
- National Key Laboratory for Rice Biology and Breeding, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Yan Bi
- National Key Laboratory for Rice Biology and Breeding, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Jiajing Wang
- National Key Laboratory for Rice Biology and Breeding, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Muhammad Noman
- National Key Laboratory for Rice Biology and Breeding, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Dayong Li
- National Key Laboratory for Rice Biology and Breeding, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Fengming Song
- National Key Laboratory for Rice Biology and Breeding, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
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5
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Jinlong H, Yu Z, Ruizhi W, Xiaoyu W, Zhiming F, Qiangqiang X, Nianbing Z, Yong Z, Haiyan W, Hongcheng Z, Jinyan Z. A genome-wide association study of panicle blast resistance to Magnaporthe oryzae in rice. MOLECULAR BREEDING : NEW STRATEGIES IN PLANT IMPROVEMENT 2024; 44:49. [PMID: 39007057 PMCID: PMC11236831 DOI: 10.1007/s11032-024-01486-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Accepted: 06/18/2024] [Indexed: 07/16/2024]
Abstract
Rice blast, caused by Magnaporthe oryzae (M. oryzae), is one of the most serious diseases worldwide. Developing blast-resistant rice varieties is an effective strategy to control the spread of rice blast and reduce the reliance on chemical pesticides. In this study, 477 sequenced rice germplasms from 48 countries were inoculated and assessed at the booting stage. We found that 23 germplasms exhibited high panicle blast resistance against M. oryzae. Genome-wide association analysis (GWAS) identified 43 quantitative trait loci (QTLs) significantly associated (P < 1.0 × 10-4) with resistance to rice panicle blast. These QTL intervals encompass four genes (OsAKT1, OsRACK1A, Bsr-k1 and Pi25/Pid3) previously reported to contribute to rice blast resistance. We selected QTLs with -Log10 (P-value) greater than 6.0 or those detected in two-year replicates, amounting to 12 QTLs, for further candidate gene analysis. Three blast resistance candidate genes (Os06g0316800, Os06g0320000, Pi25/Pid3) were identified based on significant single nucleotide polymorphisms (SNP) distributions within annotated gene sequences across these 12 QTLs and the differential expression levels among blast-resistant varieties after 72 h of inoculation. Os06g0316800 encodes a glycine-rich protein, OsGrp6, an important component of plant cell walls involved in cellular stress responses and signaling. Os06g0320000 encodes a protein with unknown function (DUF953), part of the thioredoxin-like family, which is crucial for maintaining reactive oxygen species (ROS) homeostasis in vivo, named as OsTrxl1. Lastly, Pi25/Pid3 encodes a disease resistance protein, underscoring its potential importance in plant biology. By analyzing the haplotypes of these three genes, we identified favorable haplotypes for blast resistance, providing valuable genetic resources for future rice blast resistance breeding programs. Supplementary Information The online version contains supplementary material available at 10.1007/s11032-024-01486-5.
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Affiliation(s)
- Hu Jinlong
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou, 225009 China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009 China
| | - Zhang Yu
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou, 225009 China
| | - Wang Ruizhi
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou, 225009 China
| | - Wang Xiaoyu
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou, 225009 China
| | - Feng Zhiming
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou, 225009 China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009 China
| | - Xiong Qiangqiang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou, 225009 China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009 China
| | - Zhou Nianbing
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou, 225009 China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009 China
| | - Zhou Yong
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou, 225009 China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009 China
| | - Wei Haiyan
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou, 225009 China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009 China
| | - Zhang Hongcheng
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou, 225009 China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009 China
| | - Zhu Jinyan
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou, 225009 China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009 China
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6
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Su Y, Ngea GLN, Wang K, Lu Y, Godana EA, Ackah M, Yang Q, Zhang H. Deciphering the mechanism of E3 ubiquitin ligases in plant responses to abiotic and biotic stresses and perspectives on PROTACs for crop resistance. PLANT BIOTECHNOLOGY JOURNAL 2024. [PMID: 38864414 DOI: 10.1111/pbi.14407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 05/12/2024] [Accepted: 05/27/2024] [Indexed: 06/13/2024]
Abstract
With global climate change, it is essential to find strategies to make crops more resistant to different stresses and guarantee food security worldwide. E3 ubiquitin ligases are critical regulatory elements that are gaining importance due to their role in selecting proteins for degradation in the ubiquitin-proteasome proteolysis pathway. The role of E3 Ub ligases has been demonstrated in numerous cellular processes in plants responding to biotic and abiotic stresses. E3 Ub ligases are considered a class of proteins that are difficult to control by conventional inhibitors, as they lack a standard active site with pocket, and their biological activity is mainly due to protein-protein interactions with transient conformational changes. Proteolysis-targeted chimeras (PROTACs) are a new class of heterobifunctional molecules that have emerged in recent years as relevant alternatives for incurable human diseases like cancer because they can target recalcitrant proteins for destruction. PROTACs interact with the ubiquitin-proteasome system, principally the E3 Ub ligase in the cell, and facilitate proteasome turnover of the proteins of interest. PROTAC strategies harness the essential functions of E3 Ub ligases for proteasomal degradation of proteins involved in dysfunction. This review examines critical advances in E3 Ub ligase research in plant responses to biotic and abiotic stresses. It highlights how PROTACs can be applied to target proteins involved in plant stress response to mitigate pathogenic agents and environmental adversities.
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Affiliation(s)
- Yingying Su
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Guillaume Legrand Ngolong Ngea
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
- Institute of Fisheries Sciences, University of Douala, Douala, Cameroon
| | - Kaili Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Yuchun Lu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Esa Abiso Godana
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Michael Ackah
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Qiya Yang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Hongyin Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
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7
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Zhao Y, Zhong X, Xu G, Zhu X, Shi Y, Liu M, Wang R, Kang H, You X, Ning Y, Wang G, Wang X. The F-box protein OsFBX156 positively regulates rice defence against the blast fungus Magnaporthe oryzae by mediating ubiquitination-dependent degradation of OsHSP71.1. MOLECULAR PLANT PATHOLOGY 2024; 25:e13459. [PMID: 38808386 PMCID: PMC11134189 DOI: 10.1111/mpp.13459] [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: 12/27/2023] [Revised: 04/01/2024] [Accepted: 04/04/2024] [Indexed: 05/30/2024]
Abstract
F-box protein is a subunit of the SCF (SKP1-CUL1-F-box protein) E3 ubiquitin ligase complex, which plays a critical role in regulating different pathways in plant immunity. In this study, we identified the rice (Oryza sativa) F-box protein OsFBX156, which targets the heat shock protein 70 (OsHSP71.1) to regulate resistance to the rice blast fungus Magnaporthe oryzae. Overexpression of OsFBX156 or knockout of OsHSP71.1 in rice resulted in the elevation of pathogenesis-related (PR) genes and an induction burst of reactive oxygen species (ROS) after flg22 and chitin treatments, thereby enhancing resistance to M. oryzae. Furthermore, OsFBX156 can promote the degradation of OsHSP71.1 through the 26S proteasome pathway. This study sheds lights on a novel mechanism wherein the F-box protein OsFBX156 targets OsHSP71.1 for degradation to promote ROS production and PR gene expression, thereby positively regulating rice innate immunity.
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Affiliation(s)
- Yudan Zhao
- State Key Laboratory for Biology of Plant Diseases and Insect PestsInstitute of Plant Protection, Chinese Academy of Agricultural SciencesBeijingChina
| | - Xionghui Zhong
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China)Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Sciences, Ministry of AgricultureBeijingChina
| | - Guojuan Xu
- State Key Laboratory for Biology of Plant Diseases and Insect PestsInstitute of Plant Protection, Chinese Academy of Agricultural SciencesBeijingChina
| | - Xiaoying Zhu
- State Key Laboratory for Biology of Plant Diseases and Insect PestsInstitute of Plant Protection, Chinese Academy of Agricultural SciencesBeijingChina
| | - Yanlong Shi
- State Key Laboratory for Biology of Plant Diseases and Insect PestsInstitute of Plant Protection, Chinese Academy of Agricultural SciencesBeijingChina
| | - Minghao Liu
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural AffairsAgricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural SciencesShenzhenChina
| | - Ruyi Wang
- State Key Laboratory for Biology of Plant Diseases and Insect PestsInstitute of Plant Protection, Chinese Academy of Agricultural SciencesBeijingChina
| | - Houxiang Kang
- State Key Laboratory for Biology of Plant Diseases and Insect PestsInstitute of Plant Protection, Chinese Academy of Agricultural SciencesBeijingChina
| | - Xiaoman You
- State Key Laboratory for Biology of Plant Diseases and Insect PestsInstitute of Plant Protection, Chinese Academy of Agricultural SciencesBeijingChina
| | - Yuese Ning
- State Key Laboratory for Biology of Plant Diseases and Insect PestsInstitute of Plant Protection, Chinese Academy of Agricultural SciencesBeijingChina
| | - Guo‐Liang Wang
- Department of Plant PathologyThe Ohio State UniversityColumbusOhioUSA
| | - Xuli Wang
- State Key Laboratory for Biology of Plant Diseases and Insect PestsInstitute of Plant Protection, Chinese Academy of Agricultural SciencesBeijingChina
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8
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Mou B, Zhao G, Wang J, Wang S, He F, Ning Y, Li D, Zheng X, Cui F, Xue F, Zhang S, Sun W. The OsCPK17-OsPUB12-OsRLCK176 module regulates immune homeostasis in rice. THE PLANT CELL 2024; 36:987-1006. [PMID: 37831412 PMCID: PMC10980343 DOI: 10.1093/plcell/koad265] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 09/11/2023] [Accepted: 09/17/2023] [Indexed: 10/14/2023]
Abstract
Plant immunity is fine-tuned to balance growth and defense. However, little is yet known about molecular mechanisms underlying immune homeostasis in rice (Oryza sativa). In this study, we reveal that a rice calcium-dependent protein kinase (CDPK), OsCPK17, interacts with and stabilizes the receptor-like cytoplasmic kinase (RLCK) OsRLCK176, a close homolog of Arabidopsis thaliana BOTRYTIS-INDUCED KINASE 1 (AtBIK1). Oxidative burst and pathogenesis-related gene expression triggered by pathogen-associated molecular patterns are significantly attenuated in the oscpk17 mutant. The oscpk17 mutant and OsCPK17-silenced lines are more susceptible to bacterial diseases than the wild-type plants, indicating that OsCPK17 positively regulates rice immunity. Furthermore, the plant U-box (PUB) protein OsPUB12 ubiquitinates and degrades OsRLCK176. OsCPK17 phosphorylates OsRLCK176 at Ser83, which prevents the ubiquitination of OsRLCK176 by OsPUB12 and thereby enhances the stability and immune function of OsRLCK176. The phenotypes of the ospub12 mutant in defense responses and disease resistance show that OsPUB12 negatively regulates rice immunity. Therefore, OsCPK17 and OsPUB12 reciprocally maintain OsRLCK176 homeostasis and function as positive and negative immune regulators, respectively. This study uncovers positive cross talk between CDPK- and RLCK-mediated immune signaling in plants and reveals that OsCPK17, OsPUB12, and OsRLCK176 maintain rice immune homeostasis.
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Affiliation(s)
- Baohui Mou
- Department of Plant Pathology, The Ministry of Agriculture Key Laboratory of Pest Monitoring and Green Management, and Joint International Research Laboratory of Crop Molecular Breeding, Ministry of Education, China Agricultural University, Beijing 100193, China
| | - Guosheng Zhao
- Department of Plant Pathology, The Ministry of Agriculture Key Laboratory of Pest Monitoring and Green Management, and Joint International Research Laboratory of Crop Molecular Breeding, Ministry of Education, China Agricultural University, Beijing 100193, China
| | - Jiyang Wang
- Department of Plant Pathology, The Ministry of Agriculture Key Laboratory of Pest Monitoring and Green Management, and Joint International Research Laboratory of Crop Molecular Breeding, Ministry of Education, China Agricultural University, Beijing 100193, China
| | - Shanzhi Wang
- Department of Plant Pathology, The Ministry of Agriculture Key Laboratory of Pest Monitoring and Green Management, and Joint International Research Laboratory of Crop Molecular Breeding, Ministry of Education, China Agricultural University, Beijing 100193, China
- College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Feng He
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yuese Ning
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Dayong Li
- College of Plant Protection, Jilin Agricultural University, Changchun, Jilin 130118, China
| | - Xinhang Zheng
- Department of Plant Pathology, The Ministry of Agriculture Key Laboratory of Pest Monitoring and Green Management, and Joint International Research Laboratory of Crop Molecular Breeding, Ministry of Education, China Agricultural University, Beijing 100193, China
| | - Fuhao Cui
- Department of Plant Pathology, The Ministry of Agriculture Key Laboratory of Pest Monitoring and Green Management, and Joint International Research Laboratory of Crop Molecular Breeding, Ministry of Education, China Agricultural University, Beijing 100193, China
| | - Fang Xue
- Wetland Agriculture and Ecology Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, Shandong, China
| | - Shiyong Zhang
- Wetland Agriculture and Ecology Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, Shandong, China
| | - Wenxian Sun
- Department of Plant Pathology, The Ministry of Agriculture Key Laboratory of Pest Monitoring and Green Management, and Joint International Research Laboratory of Crop Molecular Breeding, Ministry of Education, China Agricultural University, Beijing 100193, China
- College of Plant Protection, Jilin Agricultural University, Changchun, Jilin 130118, China
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9
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Panahabadi R, Ahmadikhah A, Farrokhi N. Genetic dissection of monosaccharides contents in rice whole grain using genome-wide association study. THE PLANT GENOME 2023; 16:e20292. [PMID: 36691363 DOI: 10.1002/tpg2.20292] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 11/02/2022] [Indexed: 06/17/2023]
Abstract
The simplest form of carbohydrates are monosaccharides which are the building blocks for the synthesis of polymers or complex carbohydrates. Monosaccharide contents of 197 rice accessions were quantified by HPAEC-PAD in rice (Oryza sativa L.) whole grain (RWG). A genome-wide association study (GWAS) was carried out using 33,812 single nucleotide polymorphisms (SNPs) to identify corresponding genomic regions influencing neutral monosaccharides contents. In total, 49 GWAS signals contained in 17 genomic regions (quantitative trait loci [QTLs]) on seven chromosomes of rice were determined to be associated with monosaccharides contents of whole grain. The QTLs were found for fucose (1), mannose (1), xylose (2), arabinose (2), galactose (4), and rhamnose (7) contents, all of which are novel. Based on co-location of annotated rice genes in the vicinity of GWAS signals, the constituents of the whole grain were associated with the following candidate genes: arabinose content with α-N-arabinofuranosidase, pectinesterase inhibitor, and glucosamine-fructose-6-phosphate aminotransferase 1; xylose content with ZOS1-10 (a C2H2 zinc finger transcription factor [TF]); mannose content with aldose 1-epimerase-like protein and a MYB family TF; galactose content with a GT8 family member (galacturonosyltransferase-like 3), a GRAS family TF, and a GH16 family member (xyloglucan endotransglucosylase/hydrolase xyloglucan 23); fucose content with gibberellin 20 oxidase and a lysine-rich arabinogalactan protein 19, and finally rhamnose content with myo-inositol-1-phosphate synthase, UDP-arabinopyranose mutase, and COBRA-like protein precursor. The results of this study should improve our understanding of the genetic basis of the factors that might be involved in the biosynthesis, regulation, and turnover of monosaccharides in RWG, aiming to enhance the nutritional value of rice grain and impact the related industries.
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Affiliation(s)
- Rahele Panahabadi
- Faculty of Life Sciences and Biotechnology, Shahid Beheshti Univ., Tehran, Iran
| | | | - Naser Farrokhi
- Faculty of Life Sciences and Biotechnology, Shahid Beheshti Univ., Tehran, Iran
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10
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Langin G, González-Fuente M, Üstün S. The Plant Ubiquitin-Proteasome System as a Target for Microbial Manipulation. ANNUAL REVIEW OF PHYTOPATHOLOGY 2023; 61:351-375. [PMID: 37253695 DOI: 10.1146/annurev-phyto-021622-110443] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The plant immune system perceives pathogens to trigger defense responses. In turn, pathogens secrete effector molecules to subvert these defense responses. The initiation and maintenance of defense responses involve not only de novo synthesis of regulatory proteins and enzymes but also their regulated degradation. The latter is achieved through protein degradation pathways such as the ubiquitin-proteasome system (UPS). The UPS regulates all stages of immunity, from the perception of the pathogen to the execution of the response, and, therefore, constitutes an ideal candidate for microbial manipulation of the host. Pathogen effector molecules interfere with the plant UPS through several mechanisms. This includes hijacking general UPS functions or perturbing its ability to degrade specific targets. In this review, we describe how the UPS regulates different immunity-related processes and how pathogens subvert this to promote disease.
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Affiliation(s)
- Gautier Langin
- Centre for Plant Molecular Biology (ZMBP), University of Tübingen, Tübingen, Germany;
- Faculty of Biology and Biotechnology, Ruhr-University Bochum, Bochum, Germany
| | | | - Suayib Üstün
- Faculty of Biology and Biotechnology, Ruhr-University Bochum, Bochum, Germany
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11
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Bakhat N, Vielba-Fernández A, Padilla-Roji I, Martínez-Cruz J, Polonio Á, Fernández-Ortuño D, Pérez-García A. Suppression of Chitin-Triggered Immunity by Plant Fungal Pathogens: A Case Study of the Cucurbit Powdery Mildew Fungus Podosphaera xanthii. J Fungi (Basel) 2023; 9:771. [PMID: 37504759 PMCID: PMC10381495 DOI: 10.3390/jof9070771] [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: 06/15/2023] [Revised: 07/17/2023] [Accepted: 07/17/2023] [Indexed: 07/29/2023] Open
Abstract
Fungal pathogens are significant plant-destroying microorganisms that present an increasing threat to the world's crop production. Chitin is a crucial component of fungal cell walls and a conserved MAMP (microbe-associated molecular pattern) that can be recognized by specific plant receptors, activating chitin-triggered immunity. The molecular mechanisms underlying the perception of chitin by specific receptors are well known in plants such as rice and Arabidopsis thaliana and are believed to function similarly in many other plants. To become a plant pathogen, fungi have to suppress the activation of chitin-triggered immunity. Therefore, fungal pathogens have evolved various strategies, such as prevention of chitin digestion or interference with plant chitin receptors or chitin signaling, which involve the secretion of fungal proteins in most cases. Since chitin immunity is a very effective defensive response, these fungal mechanisms are believed to work in close coordination. In this review, we first provide an overview of the current understanding of chitin-triggered immune signaling and the fungal proteins developed for its suppression. Second, as an example, we discuss the mechanisms operating in fungal biotrophs such as powdery mildew fungi, particularly in the model species Podosphaera xanthii, the main causal agent of powdery mildew in cucurbits. The key role of fungal effector proteins involved in the modification, degradation, or sequestration of immunogenic chitin oligomers is discussed in the context of fungal pathogenesis and the promotion of powdery mildew disease. Finally, the use of this fundamental knowledge for the development of intervention strategies against powdery mildew fungi is also discussed.
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Affiliation(s)
- Nisrine Bakhat
- Departamento de Microbiología, Facultad de Ciencias, Universidad de Málaga, 29071 Malaga, Spain
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora", Universidad de Málaga, Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), 29071 Malaga, Spain
| | - Alejandra Vielba-Fernández
- Departamento de Microbiología, Facultad de Ciencias, Universidad de Málaga, 29071 Malaga, Spain
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora", Universidad de Málaga, Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), 29071 Malaga, Spain
| | - Isabel Padilla-Roji
- Departamento de Microbiología, Facultad de Ciencias, Universidad de Málaga, 29071 Malaga, Spain
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora", Universidad de Málaga, Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), 29071 Malaga, Spain
| | - Jesús Martínez-Cruz
- Departamento de Microbiología, Facultad de Ciencias, Universidad de Málaga, 29071 Malaga, Spain
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora", Universidad de Málaga, Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), 29071 Malaga, Spain
| | - Álvaro Polonio
- Departamento de Microbiología, Facultad de Ciencias, Universidad de Málaga, 29071 Malaga, Spain
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora", Universidad de Málaga, Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), 29071 Malaga, Spain
| | - Dolores Fernández-Ortuño
- Departamento de Microbiología, Facultad de Ciencias, Universidad de Málaga, 29071 Malaga, Spain
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora", Universidad de Málaga, Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), 29071 Malaga, Spain
| | - Alejandro Pérez-García
- Departamento de Microbiología, Facultad de Ciencias, Universidad de Málaga, 29071 Malaga, Spain
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora", Universidad de Málaga, Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), 29071 Malaga, Spain
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12
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Zhang P, Ma X, Liu L, Mao C, Hu Y, Yan B, Guo J, Liu X, Shi J, Lee GS, Pan X, Deng Y, Zhang Z, Kang Z, Qiao Y. MEDIATOR SUBUNIT 16 negatively regulates rice immunity by modulating PATHOGENESIS RELATED 3 activity. PLANT PHYSIOLOGY 2023; 192:1132-1150. [PMID: 36815292 PMCID: PMC10231465 DOI: 10.1093/plphys/kiad120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/19/2023] [Accepted: 01/20/2023] [Indexed: 06/01/2023]
Abstract
Lesion mimic mutants (LMMs) are valuable genetic resources for unraveling plant defense responses including programmed cell death. Here, we identified a rice (Oryza sativa) LMM, spotted leaf 38 (spl38), and demonstrated that spl38 is essential for the formation of hypersensitive response-like lesions and innate immunity. Map-based cloning revealed that SPL38 encodes MEDIATOR SUBUNIT 16 (OsMED16). The spl38 mutant showed enhanced resistance to rice pathogens Magnaporthe oryzae and Xanthomonas oryzae pv. oryzae (Xoo) and exhibited delayed flowering, while OsMED16-overexpressing plants showed increased rice susceptibility to M. oryzae. The OsMED16-edited rice lines were phenotypically similar to the spl38 mutant but were extremely weak, exhibited growth retardation, and eventually died. The C-terminus of OsMED16 showed interaction with the positive immune regulator PATHOGENESIS RELATED 3 (OsPR3), resulting in the competitive repression of its chitinase and chitin-binding activities. Furthermore, the ospr3 osmed16 double mutants did not exhibit the lesion mimic phenotype of the spl38 mutant. Strikingly, OsMED16 exhibited an opposite function in plant defense relative to that of Arabidopsis (Arabidopsis thaliana) AtMED16, most likely because of 2 amino acid substitutions between the monocot and dicot MED16s tested. Collectively, our findings suggest that OsMED16 negatively regulates cell death and immunity in rice, probably via the OsPR3-mediated chitin signaling pathway.
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Affiliation(s)
- Peng Zhang
- Shanghai Key Laboratory of Plant Molecular Sciences, College of Life Sciences, Shanghai Normal University, Shanghai 200234, China
- College of Agriculture, Yangtze University, Jingzhou 434025, China
| | - Xiaoding Ma
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Lina Liu
- Shanghai Key Laboratory of Plant Molecular Sciences, College of Life Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Chanjuan Mao
- Shanghai Key Laboratory of Plant Molecular Sciences, College of Life Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Yongkang Hu
- Shanghai Key Laboratory of Plant Molecular Sciences, College of Life Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Bingxiao Yan
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Jia Guo
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling 712100, China
| | - Xinyu Liu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - Jinxia Shi
- Shanghai Key Laboratory of Plant Molecular Sciences, College of Life Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Gang-Seob Lee
- National Institute of Agricultural Science, Jeon Ju 54874, Republic of Korea
| | - Xiaowu Pan
- Hunan Rice Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Yiwen Deng
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Zhengguang Zhang
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhensheng Kang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling 712100, China
| | - Yongli Qiao
- Shanghai Key Laboratory of Plant Molecular Sciences, College of Life Sciences, Shanghai Normal University, Shanghai 200234, China
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13
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Kou X, He Q, Cao P, Wang P, Zhang S, Wu J, Kou X. Comprehensive genomic analysis of the Rho GTPases regulators in seven Rosaceae species revealed that PbrGDI1 controls pollen tube growth in Pyrus via mediating cellulose deposition. Int J Biol Macromol 2023; 235:123860. [PMID: 36868336 DOI: 10.1016/j.ijbiomac.2023.123860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 02/17/2023] [Accepted: 02/24/2023] [Indexed: 03/05/2023]
Abstract
The primary regulators of Rho GTPases are GTPase-activating protein (GAP), guanine nucleotide exchange factor (GEF), and GDP dissociation inhibitor (GDI), which function as signaling switches in several physiological processes involved in plant growth and development. This study compared how the Rho GTPase regulators functioned in seven Rosaceae species. Seven Rosaceae species, divided into three subgroups, had a total of 177 regulators of Rho GTPases. According to duplication analysis, the expansion of GEF, GAP, and GDI families was facilitated by whole genome duplication or a dispersed duplication event. The balance of cellulose deposition to control the growth of the pear pollen tube, as demonstrated by the expression profile and antisense oligonucleotide approach. Moreover, protein-protein interactions indicated that PbrGDI1 and PbrROP1 could directly interact, suggesting that PbrGDI1 regulated the growth of the pear pollen tube through PbrROP1 signaling downstream. These results lay the foundations for future functional characterization of the GAP, GEF, and GDI gene families in Pyrus bretschneideri.
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Affiliation(s)
- Xiaobing Kou
- School of Life Sciences, Nantong University, Nantong 226019, Jiangsu, People's Republic of China.
| | - Qianke He
- Centre of Pear Engineering Technology Research, State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Peng Cao
- Centre of Pear Engineering Technology Research, State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Peng Wang
- Centre of Pear Engineering Technology Research, State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Shaoling Zhang
- Centre of Pear Engineering Technology Research, State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Juyou Wu
- Centre of Pear Engineering Technology Research, State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China.
| | - Xiaobing Kou
- School of Life Sciences, Nantong University, Nantong 226019, Jiangsu, People's Republic of China.
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14
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Bi Y, Wang H, Yuan X, Yan Y, Li D, Song F. The NAC transcription factor ONAC083 negatively regulates rice immunity against Magnaporthe oryzae by directly activating transcription of the RING-H2 gene OsRFPH2-6. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2023; 65:854-875. [PMID: 36308720 DOI: 10.1111/jipb.13399] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 10/26/2022] [Indexed: 06/16/2023]
Abstract
NAC transcription factors (TFs) play critical roles in plant immunity by modulating the expression of downstream genes via binding to specific cis-elements in promoters. Here, we report the function and regulatory network of a pathogen- and defense phytohormone-inducible NAC TF gene, ONAC083, in rice (Oryza sativa) immunity. ONAC083 localizes to the nucleus and exhibits transcriptional activation activity that depends on its C-terminal region. Knockout of ONAC083 enhances rice immunity against Magnaporthe oryzae, strengthening pathogen-induced defense responses, and boosting chitin-induced pattern-triggered immunity (PTI), whereas ONAC083 overexpression has opposite effects. We identified ONAC083-binding sites in the promoters of 82 genes, and showed that ONAC083 specifically binds to a conserved element with the core sequence ACGCAA. ONAC083 activated the transcription of the genes OsRFPH2-6, OsTrx1, and OsPUP4 by directly binding to the ACGCAA element. OsRFPH2-6, encoding a RING-H2 protein with an N-terminal transmembrane region and a C-terminal typical RING domain, negatively regulated rice immunity against M. oryzae and chitin-triggered PTI. These data demonstrate that ONAC083 negatively contributes to rice immunity against M. oryzae by directly activating the transcription of OsRFPH2-6 through the ACGCAA element in its promoter. Overall, our study provides new insight into the molecular regulatory network of NAC TFs in rice immunity.
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Affiliation(s)
- Yan Bi
- National Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Hui Wang
- National Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Xi Yuan
- National Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Yuqing Yan
- National Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Dayong Li
- National Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Fengming Song
- National Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
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15
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Wang K, Li S, Chen L, Tian H, Chen C, Fu Y, Du H, Hu Z, Li R, Du Y, Li J, Zhao Q, Du C. E3 ubiquitin ligase OsPIE3 destabilises the B-lectin receptor-like kinase PID2 to control blast disease resistance in rice. THE NEW PHYTOLOGIST 2023; 237:1826-1842. [PMID: 36440499 DOI: 10.1111/nph.18637] [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: 06/17/2022] [Accepted: 11/18/2022] [Indexed: 06/16/2023]
Abstract
Previous studies have reported that PID2, which encodes a B-lectin receptor-like kinase, is a key gene in the resistance of rice to Magnaporthe oryzae strain ZB15. However, the PID2-mediated downstream signalling events remain largely unknown. The U-box E3 ubiquitin ligase OsPIE3 (PID2-interacting E3) was isolated and confirmed to play key roles in PID2-mediated rice blast resistance. Yeast two-hybrid analysis showed that the armadillo repeat region of OsPIE3 is required for its interaction with PID2. Further investigation demonstrated that OsPIE3 can modify the subcellular localisation of PID2, thus promoting its nuclear recruitment from the plasma membrane for protein degradation in the ubiquitin-proteasome system. Site-directed mutagenesis of a conserved cysteine site (C230S) within the U-box domain of OsPIE3 reduces PID2 translocation and ubiquitination. Genetic analysis suggested that OsPIE3 loss-of-function mutants exhibited enhanced resistance to M. oryzae isolate ZB15, whereas mutants with overexpressed OsPIE3 exhibited reduced resistance. Furthermore, the OsPIE3/PID2-double mutant displayed a similar blast phenotype to that of the PID2 single mutant, suggesting that OsPIE3 is a negative regulator and functions along with PID2 in blast disease resistance. Our findings confirm that the E3 ubiquitin ligase OsPIE3 is necessary for PID2-mediated rice blast disease resistance regulation.
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Affiliation(s)
- Ke Wang
- Collaborative Innovation Center of Henan Grain Crops, Key Laboratory of Henan Rice Biology, Center for Crop Genome Engineering, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Shen Li
- Collaborative Innovation Center of Henan Grain Crops, Key Laboratory of Henan Rice Biology, Center for Crop Genome Engineering, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Longxin Chen
- Molecular Biology Laboratory, Zhengzhou Normal University, Zhengzhou, 450044, China
| | - Haoran Tian
- Collaborative Innovation Center of Henan Grain Crops, Key Laboratory of Henan Rice Biology, Center for Crop Genome Engineering, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Cong Chen
- Collaborative Innovation Center of Henan Grain Crops, Key Laboratory of Henan Rice Biology, Center for Crop Genome Engineering, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Yihan Fu
- Collaborative Innovation Center of Henan Grain Crops, Key Laboratory of Henan Rice Biology, Center for Crop Genome Engineering, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Haitao Du
- Collaborative Innovation Center of Henan Grain Crops, Key Laboratory of Henan Rice Biology, Center for Crop Genome Engineering, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Zheng Hu
- Collaborative Innovation Center of Henan Grain Crops, Key Laboratory of Henan Rice Biology, Center for Crop Genome Engineering, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Runting Li
- Molecular Biology Laboratory, Zhengzhou Normal University, Zhengzhou, 450044, China
| | - Yanxiu Du
- Collaborative Innovation Center of Henan Grain Crops, Key Laboratory of Henan Rice Biology, Center for Crop Genome Engineering, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Junzhou Li
- Collaborative Innovation Center of Henan Grain Crops, Key Laboratory of Henan Rice Biology, Center for Crop Genome Engineering, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Quanzhi Zhao
- Collaborative Innovation Center of Henan Grain Crops, Key Laboratory of Henan Rice Biology, Center for Crop Genome Engineering, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
- Rice Industrial Technology Research Institute, Guizhou University, Guiyang, 550025, China
| | - Changqing Du
- Collaborative Innovation Center of Henan Grain Crops, Key Laboratory of Henan Rice Biology, Center for Crop Genome Engineering, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
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16
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Wang W, Zhang J, Guo F, Di Y, Wang Y, Li W, Sun Y, Wang Y, Ni F, Fu D, Wang W, Hao Q. Role of reactive oxygen species in lesion mimic formation and conferred basal resistance to Fusarium graminearum in barley lesion mimic mutant 5386. FRONTIERS IN PLANT SCIENCE 2022; 13:1020551. [PMID: 36699849 PMCID: PMC9869871 DOI: 10.3389/fpls.2022.1020551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 09/26/2022] [Indexed: 06/17/2023]
Abstract
This study investigated the barley lesion mimic mutant (LMM) 5386, evidenced by a leaf brown spot phenotype localized on the chromosome 3H, and its conferred basal resistance to Fusarium graminearum. RNA-seq analysis identified 1453 genes that were differentially expressed in LMM 5386 compared to those in the wild type. GO and KEGG functional annotations suggested that lesion mimic formation was mediated by pathways involving oxidation reduction and glutathione metabolism. Additionally, reactive oxygen species (ROS) accumulation in brown spots was substantially higher in LMM 5386 than in the wild-type plant; therefore, antioxidant competence, which is indicated by ROS accumulation, was significantly lower in LMM 5386. Furthermore, the reduction of glycine in LMM 5386 inhibited glutathione biosynthesis. These results suggest that the decrease in antioxidant competence and glutathione biosynthesis caused considerable ROS accumulation, leading to programmed cell death, which eventually reduced the yield components in LMM 5386.
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Affiliation(s)
- Wenqiang Wang
- College of Life Sciences, Zaozhuang University, Zaozhuang, China
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai’an, China
- Shandong Shofine Seed Technology Co., Ltd., Jining, China
| | - Jifa Zhang
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai’an, China
- Spring Valley Agriscience Co., Ltd., Jinan, China
| | - Fenxia Guo
- College of Life Sciences, Zaozhuang University, Zaozhuang, China
| | - Yindi Di
- College of Life Sciences, Zaozhuang University, Zaozhuang, China
| | - Yuhui Wang
- College of Life Sciences, Zaozhuang University, Zaozhuang, China
| | - Wankun Li
- College of Life Sciences, Zaozhuang University, Zaozhuang, China
| | - Yali Sun
- Qihe Bureau of Agriculture and Rural, Qihe, China
| | - Yuhai Wang
- College of Life Sciences, Zaozhuang University, Zaozhuang, China
| | - Fei Ni
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai’an, China
| | - Daolin Fu
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai’an, China
- Spring Valley Agriscience Co., Ltd., Jinan, China
| | - Wei Wang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai’an, China
| | - Qunqun Hao
- College of Life Sciences, Zaozhuang University, Zaozhuang, China
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai’an, China
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17
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Jiang R, Zhou S, Da X, Chen T, Xu J, Yan P, Mo X. Ubiquitin-Specific Protease 2 (OsUBP2) Negatively Regulates Cell Death and Disease Resistance in Rice. PLANTS 2022; 11:plants11192568. [PMID: 36235432 PMCID: PMC9571816 DOI: 10.3390/plants11192568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 09/22/2022] [Accepted: 09/26/2022] [Indexed: 11/16/2022]
Abstract
Lesion mimic mutants (LMMs) are great materials for studying programmed cell death and immune mechanisms in plants. Various mechanisms are involved in the phenotypes of different LMMs, but few studies have explored the mechanisms linking deubiquitination and LMMs in rice (Oryza sativa). Here, we identified a rice LMM, rust spots rice (rsr1), resulting from the mutation of a single recessive gene. This LMM has spontaneous reddish-brown spots on its leaves, and displays enhanced resistance to both fungal leaf blast (caused by Magnaporthe oryzae) and bacterial blight (caused by Xanthomonas oryzae pv. oryzae). Map-based cloning showed that the mutated gene in rsr1 encodes a Ubiquitin-Specific Protease 2 (OsUBP2). The mutation of OsUBP2 was shown to result in reactive oxygen species (ROS) accumulation, chloroplast structural defects, and programmed cell death, while the overexpression of OsUBP2 weakened rice resistance to leaf blast. OsUBP2 is therefore a negative regulator of immune processes and ROS production. OsUBP2 has deubiquitinating enzyme activity in vitro, and the enzyme active site includes a cysteine at the 234th residue. The ubiquitinated proteomics data of rsr1 and WT provide some possible target protein candidates for OsUBP2.
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18
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Liu X, Yin Z, Wang Y, Cao S, Yao W, Liu J, Lu X, Wang F, Zhang G, Xiao Y, Tang W, Deng H. Rice cellulose synthase-like protein OsCSLD4 coordinates the trade-off between plant growth and defense. FRONTIERS IN PLANT SCIENCE 2022; 13:980424. [PMID: 36226281 PMCID: PMC9548992 DOI: 10.3389/fpls.2022.980424] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 09/12/2022] [Indexed: 06/16/2023]
Abstract
Plant cell wall is a complex and changeable structure, which is very important for plant growth and development. It is clear that cell wall polysaccharide synthases have critical functions in rice growth and abiotic stress, yet their role in plant response to pathogen invasion is poorly understood. Here, we describe a dwarf and narrowed leaf in Hejiang 19 (dnl19) mutant in rice, which shows multiple growth defects such as reduced plant height, enlarged lamina joint angle, curled leaf morphology, and a decrease in panicle length and seed setting. MutMap analysis, genetic complementation and gene knockout mutant show that cellulose synthase-like D4 (OsCSLD4) is the causal gene for DNL19. Loss function of OsCSLD4 leads to a constitutive activation of defense response in rice. After inoculation with rice blast and bacterial blight, dnl19 displays an enhanced disease resistance. Widely targeted metabolomics analysis reveals that disruption of OsCSLD4 in dnl19 resulted in significant increase of L-valine, L-asparagine, L-histidine, L-alanine, gentisic acid, but significant decrease of L-aspartic acid, malic acid, 6-phosphogluconic acid, glucose 6-phosphate, galactose 1-phosphate, gluconic acid, D-aspartic acid. Collectively, our data reveals the importance of OsCSLD4 in balancing the trade-off between rice growth and defense.
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Affiliation(s)
- Xiong Liu
- College of Agronomy, Hunan Agricultural University, Changsha, China
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Changsha, China
| | - Zhongliang Yin
- College of Agronomy, Hunan Agricultural University, Changsha, China
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Changsha, China
| | - Yubo Wang
- College of Agronomy, Hunan Agricultural University, Changsha, China
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Changsha, China
| | - Sai Cao
- College of Agronomy, Hunan Agricultural University, Changsha, China
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Changsha, China
| | - Wei Yao
- College of Agronomy, Hunan Agricultural University, Changsha, China
| | - Jinling Liu
- College of Agronomy, Hunan Agricultural University, Changsha, China
| | - Xuedan Lu
- College of Agronomy, Hunan Agricultural University, Changsha, China
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Changsha, China
| | - Feng Wang
- College of Agronomy, Hunan Agricultural University, Changsha, China
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Changsha, China
| | - Guilian Zhang
- College of Agronomy, Hunan Agricultural University, Changsha, China
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Changsha, China
| | - Yunhua Xiao
- College of Agronomy, Hunan Agricultural University, Changsha, China
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Changsha, China
| | - Wenbang Tang
- College of Agronomy, Hunan Agricultural University, Changsha, China
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Changsha, China
- Hunan Hybrid Rice Research Center, Hunan Academy of Agricultural Sciences, Changsha, China
- State Key Laboratory of Hybrid Rice, Changsha, China
| | - Huabing Deng
- College of Agronomy, Hunan Agricultural University, Changsha, China
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Changsha, China
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19
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Functional Characterization of Ubiquitination Genes in the Interaction of Soybean—Heterodera glycines. Int J Mol Sci 2022; 23:ijms231810771. [PMID: 36142678 PMCID: PMC9504373 DOI: 10.3390/ijms231810771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/05/2022] [Accepted: 09/13/2022] [Indexed: 11/21/2022] Open
Abstract
Ubiquitination is a kind of post-translational modification of proteins that plays an important role in plant response to biotic and abiotic stress. The response of soybean GmPUB genes to soybean cyst nematode (SCN, Heterodera glycines) infection is largely unknown. In this study, quantitative real-time PCR (qRT-PCR) was performed to detect the relative expression of 49 GmPUB genes in susceptible cultivar William 82 and resistant cultivar Huipizhi after SCN inoculation. The results show that GmPUB genes responded to cyst nematode infection at 1 day post-inoculation (dpi), 5 dpi, 10 dpi and 15 dpi. The expression levels of GmPUB16A, GmPUB20A, GmCHIPA, GmPUB33A, GmPUB23A and GmPUB24A were dramatically changed during SCN infection. Furthermore, functional analysis of these GmPUB genes by overexpression and RNAi showed that GmPUB20A, GmPUB33A and GmPUB24A negatively regulated soybean resistance under SCN stress. The results from our present study provide insights into the complicated molecular mechanism of the interaction between soybean and SCN.
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20
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A VQ-motif-containing protein fine-tunes rice immunity and growth by a hierarchical regulatory mechanism. Cell Rep 2022; 40:111235. [PMID: 35977497 DOI: 10.1016/j.celrep.2022.111235] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 06/17/2022] [Accepted: 07/27/2022] [Indexed: 12/27/2022] Open
Abstract
Rice blast and bacterial blight, caused by the fungus Magnaporthe oryzae and the bacterium Xanthomonas oryzae pv. oryzae (Xoo), respectively, are devastating diseases affecting rice. Here, we report that a rice valine-glutamine (VQ) motif-containing protein, OsVQ25, balances broad-spectrum disease resistance and plant growth by interacting with a U-Box E3 ligase, OsPUB73, and a transcription factor, OsWRKY53. We show that OsPUB73 positively regulates rice resistance against M. oryzae and Xoo by interacting with and promoting OsVQ25 degradation via the 26S proteasome pathway. Knockout mutants of OsVQ25 exhibit enhanced resistance to both pathogens without a growth penalty. Furthermore, OsVQ25 interacts with and suppresses the transcriptional activity of OsWRKY53, a positive regulator of plant immunity. OsWRKY53 downstream defense-related genes and brassinosteroid signaling genes are upregulated in osvq25 mutants. Our findings reveal a ubiquitin E3 ligase-VQ protein-transcription factor module that fine-tunes plant immunity and growth at the transcriptional and posttranslational levels.
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21
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Meng Y, Zhang A, Ma Q, Xing L. Functional Characterization of Tomato ShROP7 in Regulating Resistance against Oidium neolycopersici. Int J Mol Sci 2022; 23:ijms23158557. [PMID: 35955691 PMCID: PMC9369182 DOI: 10.3390/ijms23158557] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 07/01/2022] [Accepted: 07/29/2022] [Indexed: 02/01/2023] Open
Abstract
ROPs (Rho-like GTPases from plants) are a unique family of small GTP-binding proteins in plants and play vital roles in numerous cellular processes, including growth and development, abiotic stress signaling, and plant defense. In the case of the latter, the role of ROPs as response regulators to obligate parasitism remains largely enigmatic. Herein, we isolated and identified ShROP7 and show that it plays a critical role in plant immune response to pathogen infection. Real-time quantitative PCR analysis revealed that the expression of ShROP7 was significantly increased during incompatible interactions. To establish its requirement for resistance, we demonstrate that virus-induced gene silencing (VIGS) of ShROP7 resulted in increased susceptibility of tomato to Oidium neolycopersici (On) Lanzhou strain (On-Lz). Downstream resistance signaling through H2O2 and the induction of the hypersensitive response (HR) in ShROP7-silenced plants were significantly reduced after inoculating with On-Lz. Taken together, with the identification of ShROP7-interacting candidates, including ShSOBIR1, we demonstrate that ShROP7 plays a positive regulatory role in tomato powdery mildew resistance.
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Affiliation(s)
- Yanan Meng
- College of Life Sciences, Northwest University, Xi’an 710069, China;
| | - Ancheng Zhang
- College of Plant Protection, Northwest A&F University, Xianyang 712100, China (Q.M.)
| | - Qing Ma
- College of Plant Protection, Northwest A&F University, Xianyang 712100, China (Q.M.)
| | - Lianxi Xing
- College of Life Sciences, Northwest University, Xi’an 710069, China;
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University, Xi’an 710069, China
- Correspondence:
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22
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Trenner J, Monaghan J, Saeed B, Quint M, Shabek N, Trujillo M. Evolution and Functions of Plant U-Box Proteins: From Protein Quality Control to Signaling. ANNUAL REVIEW OF PLANT BIOLOGY 2022; 73:93-121. [PMID: 35226816 DOI: 10.1146/annurev-arplant-102720-012310] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Posttranslational modifications add complexity and diversity to cellular proteomes. One of the most prevalent modifications across eukaryotes is ubiquitination, which is orchestrated by E3 ubiquitin ligases. U-box-containing E3 ligases have massively expanded in the plant kingdom and have diversified into plant U-box proteins (PUBs). PUBs likely originated from two or three ancestral forms, fusing with diverse functional subdomains that resulted in neofunctionalization. Their emergence and diversification may reflect adaptations to stress during plant evolution, reflecting changes in the needs of plant proteomes to maintain cellular homeostasis. Through their close association with protein kinases, they are physically linked to cell signaling hubs and activate feedback loops by dynamically pairing with E2-ubiquitin-conjugating enzymes to generate distinct ubiquitin polymers that themselves act as signals. Here, we complement current knowledgewith comparative genomics to gain a deeper understanding of PUB function, focusing on their evolution and structural adaptations of key U-box residues, as well as their various roles in plant cells.
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Affiliation(s)
- Jana Trenner
- Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, Halle, Germany; ,
| | | | - Bushra Saeed
- Institute of Biology II, Faculty of Biology, Albert-Ludwigs-University Freiburg, Freiburg, Germany; ,
| | - Marcel Quint
- Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, Halle, Germany; ,
| | - Nitzan Shabek
- Department of Plant Biology, College of Biological Sciences, University of California, Davis, California, USA;
| | - Marco Trujillo
- Institute of Biology II, Faculty of Biology, Albert-Ludwigs-University Freiburg, Freiburg, Germany; ,
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23
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Zhang F, Fang H, Wang M, He F, Tao H, Wang R, Long J, Wang J, Wang GL, Ning Y. APIP5 functions as a transcription factor and an RNA-binding protein to modulate cell death and immunity in rice. Nucleic Acids Res 2022; 50:5064-5079. [PMID: 35524572 PMCID: PMC9122607 DOI: 10.1093/nar/gkac316] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 04/08/2022] [Accepted: 04/20/2022] [Indexed: 01/13/2023] Open
Abstract
Many transcription factors (TFs) in animals bind to both DNA and mRNA, regulating transcription and mRNA turnover. However, whether plant TFs function at both the transcriptional and post-transcriptional levels remains unknown. The rice (Oryza sativa) bZIP TF AVRPIZ-T-INTERACTING PROTEIN 5 (APIP5) negatively regulates programmed cell death and blast resistance and is targeted by the effector AvrPiz-t of the blast fungus Magnaporthe oryzae. We demonstrate that the nuclear localization signal of APIP5 is essential for APIP5-mediated suppression of cell death and blast resistance. APIP5 directly targets two genes that positively regulate blast resistance: the cell wall-associated kinase gene OsWAK5 and the cytochrome P450 gene CYP72A1. APIP5 inhibits OsWAK5 expression and thus limits lignin accumulation; moreover, APIP5 inhibits CYP72A1 expression and thus limits reactive oxygen species production and defense compounds accumulation. Remarkably, APIP5 acts as an RNA-binding protein to regulate mRNA turnover of the cell death- and defense-related genes OsLSD1 and OsRac1. Therefore, APIP5 plays dual roles, acting as TF to regulate gene expression in the nucleus and as an RNA-binding protein to regulate mRNA turnover in the cytoplasm, a previously unidentified regulatory mechanism of plant TFs at the transcriptional and post-transcriptional levels.
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Affiliation(s)
- Fan Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Hong Fang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Min Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Feng He
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Hui Tao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Ruyi Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Jiawei Long
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Jiyang Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Guo-Liang Wang
- Department of Plant Pathology, The Ohio State University, Columbus, OH 43210, USA
| | - Yuese Ning
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
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24
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Zhou Y, Xu S, Jiang N, Zhao X, Bai Z, Liu J, Yao W, Tang Q, Xiao G, Lv C, Wang K, Hu X, Tan J, Yang Y. Engineering of rice varieties with enhanced resistances to both blast and bacterial blight diseases via CRISPR/Cas9. PLANT BIOTECHNOLOGY JOURNAL 2022; 20:876-885. [PMID: 34890109 PMCID: PMC9055821 DOI: 10.1111/pbi.13766] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 11/25/2021] [Accepted: 12/04/2021] [Indexed: 05/05/2023]
Abstract
Rice blast and bacterial blight represent two of major diseases having devastating impact on the yield of rice in most rice-growing countries. Developments of resistant cultivars are the most economic and effective strategy to control these diseases. Here, we used CRISPR/Cas9-mediated gene editing to rapidly install mutations in three known broad-spectrum blast-resistant genes, Bsr-d1, Pi21 and ERF922, in an indica thermosensitive genic male sterile (TGMS) rice line Longke638S (LK638S). We obtained transgene-free homozygous single or triple mutants in T1 generations. While all single and triple mutants showed increased resistance to rice blast compared with wild type, the erf922 mutants displayed the strongest blast resistance similar with triple mutants. Surprisingly, we found that Pi21 or ERF922 single mutants conferred enhanced resistance to most of tested bacterial blight. Both resistances in mutants were attribute to the up-regulation of SA- and JA-pathway associated genes. Moreover, phenotypic analysis of these single mutants in paddy fields revealed that there were no trade-offs between resistances and main agricultural traits. Together, our study provides a rapid and effective way to generate rice varieties with resistance to both rice blast and bacterial blight.
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Affiliation(s)
- Yanbiao Zhou
- Key Laboratory of Southern Rice Innovation & ImprovementMinistry of Agriculture and Rural Affairs/Hunan Engineering Laboratory of Disease and Pest Resistant Rice BreedingYuan Longping High‐Tech Agriculture Co., LtdChangsha410001HunanChina
- College of Life SciencesSouth China Agricultural UniversityGuangzhou510642China
| | - Shichong Xu
- Key Laboratory of Southern Rice Innovation & ImprovementMinistry of Agriculture and Rural Affairs/Hunan Engineering Laboratory of Disease and Pest Resistant Rice BreedingYuan Longping High‐Tech Agriculture Co., LtdChangsha410001HunanChina
- College of Plant Science and TechnologyHuazhong Agricultural UniversityWuhan430070HubeiChina
| | - Nan Jiang
- Key Laboratory of Southern Rice Innovation & ImprovementMinistry of Agriculture and Rural Affairs/Hunan Engineering Laboratory of Disease and Pest Resistant Rice BreedingYuan Longping High‐Tech Agriculture Co., LtdChangsha410001HunanChina
| | - Xinhui Zhao
- Key Laboratory of Southern Rice Innovation & ImprovementMinistry of Agriculture and Rural Affairs/Hunan Engineering Laboratory of Disease and Pest Resistant Rice BreedingYuan Longping High‐Tech Agriculture Co., LtdChangsha410001HunanChina
- College of Life SciencesSouth China Agricultural UniversityGuangzhou510642China
| | - Zhenan Bai
- Key Laboratory of Southern Rice Innovation & ImprovementMinistry of Agriculture and Rural Affairs/Hunan Engineering Laboratory of Disease and Pest Resistant Rice BreedingYuan Longping High‐Tech Agriculture Co., LtdChangsha410001HunanChina
| | - Jinling Liu
- College of AgronomyHunan Agricultural UniversityChangsha410128HunanChina
| | - Wei Yao
- College of AgronomyHunan Agricultural UniversityChangsha410128HunanChina
| | - Qianying Tang
- Key Laboratory of Southern Rice Innovation & ImprovementMinistry of Agriculture and Rural Affairs/Hunan Engineering Laboratory of Disease and Pest Resistant Rice BreedingYuan Longping High‐Tech Agriculture Co., LtdChangsha410001HunanChina
| | - Gui Xiao
- State Key Laboratory of Hybrid RiceHunan Hybrid Rice Research CenterChangsha410125HunanChina
| | - Chao Lv
- Key Laboratory of Southern Rice Innovation & ImprovementMinistry of Agriculture and Rural Affairs/Hunan Engineering Laboratory of Disease and Pest Resistant Rice BreedingYuan Longping High‐Tech Agriculture Co., LtdChangsha410001HunanChina
- College of Plant Science and TechnologyHuazhong Agricultural UniversityWuhan430070HubeiChina
| | - Kai Wang
- Key Laboratory of Southern Rice Innovation & ImprovementMinistry of Agriculture and Rural Affairs/Hunan Engineering Laboratory of Disease and Pest Resistant Rice BreedingYuan Longping High‐Tech Agriculture Co., LtdChangsha410001HunanChina
| | - Xiaochun Hu
- Key Laboratory of Southern Rice Innovation & ImprovementMinistry of Agriculture and Rural Affairs/Hunan Engineering Laboratory of Disease and Pest Resistant Rice BreedingYuan Longping High‐Tech Agriculture Co., LtdChangsha410001HunanChina
| | - Junjie Tan
- State Key Laboratory of Crop Genetics and Germplasm EnhancementInnovation Center for Genome Editing and EngineeringJiangsu Collaborative Innovation Center for Modern Crop ProductionNanjing Agricultural UniversityNanjing210095China
| | - Yuanzhu Yang
- Key Laboratory of Southern Rice Innovation & ImprovementMinistry of Agriculture and Rural Affairs/Hunan Engineering Laboratory of Disease and Pest Resistant Rice BreedingYuan Longping High‐Tech Agriculture Co., LtdChangsha410001HunanChina
- College of Plant Science and TechnologyHuazhong Agricultural UniversityWuhan430070HubeiChina
- College of AgronomyHunan Agricultural UniversityChangsha410128HunanChina
- State Key Laboratory of Hybrid RiceHunan Hybrid Rice Research CenterChangsha410125HunanChina
- State Key Laboratory of Crop Genetics and Germplasm EnhancementInnovation Center for Genome Editing and EngineeringJiangsu Collaborative Innovation Center for Modern Crop ProductionNanjing Agricultural UniversityNanjing210095China
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25
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Freh M, Gao J, Petersen M, Panstruga R. Plant autoimmunity-fresh insights into an old phenomenon. PLANT PHYSIOLOGY 2022; 188:1419-1434. [PMID: 34958371 PMCID: PMC8896616 DOI: 10.1093/plphys/kiab590] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 11/22/2021] [Indexed: 06/14/2023]
Abstract
The plant immune system is well equipped to ward off the attacks of different types of phytopathogens. It primarily relies on two types of immune sensors-plasma membrane-resident receptor-like kinases and intracellular nucleotide-binding domain leucine-rich repeat (NLRs) receptors that engage preferentially in pattern- and effector-triggered immunity, respectively. Delicate fine-tuning, in particular of the NLR-governed branch of immunity, is key to prevent inappropriate and deleterious activation of plant immune responses. Inadequate NLR allele constellations, such as in the case of hybrid incompatibility, and the mis-activation of NLRs or the absence or modification of proteins guarded by these NLRs can result in the spontaneous initiation of plant defense responses and cell death-a phenomenon referred to as plant autoimmunity. Here, we review recent insights augmenting our mechanistic comprehension of plant autoimmunity. The recent findings broaden our understanding regarding hybrid incompatibility, unravel candidates for proteins likely guarded by NLRs and underline the necessity for the fine-tuning of NLR expression at various levels to avoid autoimmunity. We further present recently emerged tools to study plant autoimmunity and draw a cross-kingdom comparison to the role of NLRs in animal autoimmune conditions.
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Affiliation(s)
- Matthias Freh
- Institute for Biology I, Unit of Plant Molecular Cell Biology, RWTH Aachen University, Aachen 52056, Germany
| | - Jinlan Gao
- Institute of Biology, Functional Genomics, Copenhagen University, Copenhagen 2200, Denmark
| | - Morten Petersen
- Institute of Biology, Functional Genomics, Copenhagen University, Copenhagen 2200, Denmark
| | - Ralph Panstruga
- Institute for Biology I, Unit of Plant Molecular Cell Biology, RWTH Aachen University, Aachen 52056, Germany
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26
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How Many Faces Does the Plant U-Box E3 Ligase Have? Int J Mol Sci 2022; 23:ijms23042285. [PMID: 35216399 PMCID: PMC8875423 DOI: 10.3390/ijms23042285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 02/04/2022] [Accepted: 02/08/2022] [Indexed: 11/17/2022] Open
Abstract
Ubiquitination is a major type of post-translational modification of proteins in eukaryotes. The plant U-Box (PUB) E3 ligase is the smallest family in the E3 ligase superfamily, but plays a variety of essential roles in plant growth, development and response to diverse environmental stresses. Hence, PUBs are potential gene resources for developing climate-resilient crops. However, there is a lack of review of the latest advances to fully understand the powerful gene family. To bridge the gap and facilitate its use in future crop breeding, we comprehensively summarize the recent progress of the PUB family, including gene evolution, classification, biological functions, and multifarious regulatory mechanisms in plants.
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27
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Yao Y, Zhou J, Cheng C, Niu F, Zhang A, Sun B, Tu R, Wan J, Li Y, Huang Y, Xie K, Dai Y, Zhang H, Hong JH, Pan X, Zhu J, Zhou H, Liu Z, Cao L, Chu H. A conserved clathrin-coated vesicle component, OsSCYL2, regulates plant innate immunity in rice. PLANT, CELL & ENVIRONMENT 2022; 45:542-555. [PMID: 34866195 PMCID: PMC9305246 DOI: 10.1111/pce.14240] [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: 07/30/2021] [Revised: 10/19/2021] [Accepted: 11/18/2021] [Indexed: 05/07/2023]
Abstract
Clathrin-mediated vesicle trafficking (CMVT) is a fundamental process in all eukaryotic species, and indispensable to organism's growth and development. Recently, it has been suggested that CMVT also plays important roles in the regulation of plant immunity. However, the molecular link between CMVT and plant immunity is largely unknown. SCY1-LIKE2 (SCYL2) is evolutionally conserved among the eukaryote species. Loss-of-function of SCYL2 in Arabidopsis led to severe growth defects. Here, we show that mutation of OsSCYL2 in rice gave rise to a novel phenotype-hypersensitive response-like (HR) cell death in a light-dependent manner. Although mutants of OsSCYL2 showed additional defects in the photosynthetic system, they exhibited enhanced resistance to bacterial pathogens. Subcellular localisation showed that OsSCYL2 localized at Golgi, trans-Golgi network and prevacuolar compartment. OsSCYL2 interacted with OsSPL28, subunit of a clathrin-associated adaptor protein that is known to regulate HR-like cell death in rice. We further showed that OsSCYL2-OsSPL28 interaction is mediated by OsCHC1. Collectively, we characterized a novel component of the CMVT pathway in the regulation of plant immunity. Our work also revealed unidentified new functions of the very conserved SCYL2. It thus may provide new breeding targets to achieve both high yield and enhanced resistance in crops.
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Affiliation(s)
- Yao Yao
- Institute of Crop Breeding and CultivationShanghai Academy of Agricultural SciencesShanghaiChina
- College of AgronomyJiangxi Agricultural UniversityNanchangJiangxiChina
| | - Jihua Zhou
- Institute of Crop Breeding and CultivationShanghai Academy of Agricultural SciencesShanghaiChina
| | - Can Cheng
- Institute of Crop Breeding and CultivationShanghai Academy of Agricultural SciencesShanghaiChina
| | - Fuan Niu
- Institute of Crop Breeding and CultivationShanghai Academy of Agricultural SciencesShanghaiChina
| | - Anpeng Zhang
- Institute of Crop Breeding and CultivationShanghai Academy of Agricultural SciencesShanghaiChina
| | - Bin Sun
- Institute of Crop Breeding and CultivationShanghai Academy of Agricultural SciencesShanghaiChina
| | - Rongjian Tu
- Institute of Crop Breeding and CultivationShanghai Academy of Agricultural SciencesShanghaiChina
| | - Jianing Wan
- Institute of Edible FungiShanghai Academy of Agricultural SciencesShanghaiChina
| | - Yao Li
- Institute of Crop Breeding and CultivationShanghai Academy of Agricultural SciencesShanghaiChina
- College of Fisheries and LifeShanghai Ocean UniversityShanghaiChina
| | - Yiwen Huang
- Institute of Crop Breeding and CultivationShanghai Academy of Agricultural SciencesShanghaiChina
- College of AgronomyJiangxi Agricultural UniversityNanchangJiangxiChina
| | - Kaizhen Xie
- Institute of Crop Breeding and CultivationShanghai Academy of Agricultural SciencesShanghaiChina
- College of Fisheries and LifeShanghai Ocean UniversityShanghaiChina
| | - Yuting Dai
- Institute of Crop Breeding and CultivationShanghai Academy of Agricultural SciencesShanghaiChina
- College of AgronomyJiangxi Agricultural UniversityNanchangJiangxiChina
| | - Hui Zhang
- College of Life ScienceShanghai Normal UniversityShanghaiChina
| | - Jing Han Hong
- Cancer and Stem Cell Biology ProgrammeDuke‐NUS Medical SchoolSingaporeSingapore
| | - Xiaohua Pan
- College of AgronomyJiangxi Agricultural UniversityNanchangJiangxiChina
| | - Jiaojiao Zhu
- School of Agriculture and Biology, Joint Center for Single Cell BiologyShanghai Jiao Tong UniversityShanghaiChina
| | - Hong Zhou
- School of Agriculture and Biology, Joint Center for Single Cell BiologyShanghai Jiao Tong UniversityShanghaiChina
| | - Zhenhua Liu
- School of Agriculture and Biology, Joint Center for Single Cell BiologyShanghai Jiao Tong UniversityShanghaiChina
| | - Liming Cao
- Institute of Crop Breeding and CultivationShanghai Academy of Agricultural SciencesShanghaiChina
| | - Huangwei Chu
- Institute of Crop Breeding and CultivationShanghai Academy of Agricultural SciencesShanghaiChina
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Han H, Zou J, Zhou J, Zeng M, Zheng D, Yuan X, Xi D. The small GTPase NtRHO1 negatively regulates tobacco defense response to tobacco mosaic virus by interacting with NtWRKY50. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:366-381. [PMID: 34487168 DOI: 10.1093/jxb/erab408] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 09/04/2021] [Indexed: 06/13/2023]
Abstract
Small GTPases play critical roles in the regulation of plant growth and development. However, the mechanism of action of small GTPases in plant response to virus infection remains largely unknown. Here, the gene encoding a Rho-type GTPase, NtRHO1, was identified as one of the genes up-regulated after tobacco mosaic virus (TMV) infection. Subcellular localization of NtRHO1 showed that it was located in the cytoplasm, plasma membrane, and nucleus. Transient overexpression of NtRHO1 in Nicotiana benthamiana accelerated TMV reproduction and led to the production of reactive oxygen species. By contrast, silencing of NtRHO1 reduced the sensitivity of N. benthamiana to TMV-GFP. Further exploration revealed a direct interaction between NtRHO1 and NtWRKY50, a positive regulator of the N. benthamiana response to virus infection. Yeast one-hybrid and electrophoretic mobility shift assays showed that this regulation was related to the capacity of NtWRKY50 to bind to the WK-box of the PR1 promoter, which was weakened by the interaction between NtRHO1 and NtWRKY50. Thus, our results indicate that the small GTPase NtRHO1 plays a negative role in tobacco response to TMV infection by interacting with transcription factor NtWRKY50, resulting in reduced plant immunity.
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Affiliation(s)
- Hongyan Han
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan, China
| | - Jialing Zou
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan, China
| | - Jingya Zhou
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan, China
| | - Mengyuan Zeng
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan, China
| | - Dongchao Zheng
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan, China
| | - Xuefeng Yuan
- Department of Plant Pathology, College of Plant Protection, Shandong Agricultural University, Shandong Province Key Laboratory of Agricultural Microbiology, Tai'an, Shandong, China
| | - Dehui Xi
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan, China
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Chen R, Deng Y, Ding Y, Guo J, Qiu J, Wang B, Wang C, Xie Y, Zhang Z, Chen J, Chen L, Chu C, He G, He Z, Huang X, Xing Y, Yang S, Xie D, Liu Y, Li J. Rice functional genomics: decades' efforts and roads ahead. SCIENCE CHINA. LIFE SCIENCES 2022. [PMID: 34881420 DOI: 10.1007/s11427-021-2024-2020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
Rice (Oryza sativa L.) is one of the most important crops in the world. Since the completion of rice reference genome sequences, tremendous progress has been achieved in understanding the molecular mechanisms on various rice traits and dissecting the underlying regulatory networks. In this review, we summarize the research progress of rice biology over past decades, including omics, genome-wide association study, phytohormone action, nutrient use, biotic and abiotic responses, photoperiodic flowering, and reproductive development (fertility and sterility). For the roads ahead, cutting-edge technologies such as new genomics methods, high-throughput phenotyping platforms, precise genome-editing tools, environmental microbiome optimization, and synthetic methods will further extend our understanding of unsolved molecular biology questions in rice, and facilitate integrations of the knowledge for agricultural applications.
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Affiliation(s)
- Rongzhi Chen
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Yiwen Deng
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology & Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Yanglin Ding
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Jingxin Guo
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Jie Qiu
- Shanghai Key Laboratory of Plant Molecular Sciences, College of Life Sciences, Shanghai Normal University, Shanghai, 200234, China
| | - Bing Wang
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Changsheng Wang
- National Center for Gene Research, Center of Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200233, China
| | - Yongyao Xie
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Zhihua Zhang
- College of Plant Science, Jilin University, Changchun, 130062, China
| | - Jiaxin Chen
- Shanghai Key Laboratory of Plant Molecular Sciences, College of Life Sciences, Shanghai Normal University, Shanghai, 200234, China
| | - Letian Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Chengcai Chu
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Guangcun He
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Zuhua He
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology & Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Xuehui Huang
- Shanghai Key Laboratory of Plant Molecular Sciences, College of Life Sciences, Shanghai Normal University, Shanghai, 200234, China
| | - Yongzhong Xing
- National Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research, Huazhong Agricultural University, Wuhan, 430070, China
| | - Shuhua Yang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Daoxin Xie
- MOE Laboratory of Bioinformatics, School of Life Sciences, Tsinghua University, Beijing, 100084, China.
| | - Yaoguang Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China.
| | - Jiayang Li
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing, 100101, China.
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30
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Zheng Y, Zhu Y, Mao X, Jiang M, Wei Y, Lian L, Xu H, Chen L, Xie H, Lu G, Zhang J. SDR7-6, a short-chain alcohol dehydrogenase/reductase family protein, regulates light-dependent cell death and defence responses in rice. MOLECULAR PLANT PATHOLOGY 2022; 23:78-91. [PMID: 34633131 PMCID: PMC8659612 DOI: 10.1111/mpp.13144] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 08/15/2021] [Accepted: 09/10/2021] [Indexed: 05/15/2023]
Abstract
Lesion mimic mutants resembling the hypersensitive response without pathogen attack are an ideal material to understand programmed cell death, the defence response, and the cross-talk between defence response and development in plants. In this study, mic, a lesion mimic mutant from cultivar Yunyin treated with ethyl methanesulphonate (EMS), was screened. By map-based cloning, a short-chain alcohol dehydrogenase/reductase with an atypical active site HxxxK was isolated and designated as SDR7-6. It functions as a homomultimer in rice and is localized at the endoplasmic reticulum. The lesion mimic phenotype of the mutant is light-dependent. The mutant displayed an increased resistance response to bacterial blight, but reduced resistance to rice blast disease. The mutant and knockout lines showed increased reactive oxygen species, jasmonic acid content, antioxidant enzyme activity, and expression of pathogenicity-related genes, while chlorophyll content was significantly reduced. The knockout lines showed significant reduction in grain size, seed setting rate, 1000-grain weight, grain weight per plant, panicle length, and plant height. SDR7-6 is a new lesion mimic gene that encodes a short-chain alcohol dehydrogenase with atypical catalytic site. Disruption of SDR7-6 led to cell death and had adverse effects on multiple agricultural characters. SDR7-6 may act at the interface of the two defence pathways of bacterial blight and rice blast disease in rice.
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Affiliation(s)
- Yanmei Zheng
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan CropsFujian Agriculture and Forestry UniversityFuzhouChina
- Rice Research InstituteFujian Academy of Agricultural SciencesFuzhouChina
- Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs P.R. China/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular BreedingFuzhouChina
| | - Yongsheng Zhu
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan CropsFujian Agriculture and Forestry UniversityFuzhouChina
- Rice Research InstituteFujian Academy of Agricultural SciencesFuzhouChina
- Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs P.R. China/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular BreedingFuzhouChina
| | - Xiaohui Mao
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan CropsFujian Agriculture and Forestry UniversityFuzhouChina
- Rice Research InstituteFujian Academy of Agricultural SciencesFuzhouChina
- Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs P.R. China/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular BreedingFuzhouChina
| | - Minrong Jiang
- Rice Research InstituteFujian Academy of Agricultural SciencesFuzhouChina
- Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs P.R. China/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular BreedingFuzhouChina
| | - Yidong Wei
- Rice Research InstituteFujian Academy of Agricultural SciencesFuzhouChina
- Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs P.R. China/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular BreedingFuzhouChina
| | - Ling Lian
- Rice Research InstituteFujian Academy of Agricultural SciencesFuzhouChina
- Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs P.R. China/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular BreedingFuzhouChina
| | - Huibin Xu
- Rice Research InstituteFujian Academy of Agricultural SciencesFuzhouChina
- Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs P.R. China/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular BreedingFuzhouChina
| | - Liping Chen
- Rice Research InstituteFujian Academy of Agricultural SciencesFuzhouChina
- Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs P.R. China/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular BreedingFuzhouChina
| | - Huaan Xie
- Rice Research InstituteFujian Academy of Agricultural SciencesFuzhouChina
- Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs P.R. China/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular BreedingFuzhouChina
| | - Guodong Lu
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan CropsFujian Agriculture and Forestry UniversityFuzhouChina
| | - Jianfu Zhang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan CropsFujian Agriculture and Forestry UniversityFuzhouChina
- Rice Research InstituteFujian Academy of Agricultural SciencesFuzhouChina
- Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs P.R. China/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular BreedingFuzhouChina
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31
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Rice functional genomics: decades' efforts and roads ahead. SCIENCE CHINA. LIFE SCIENCES 2021; 65:33-92. [PMID: 34881420 DOI: 10.1007/s11427-021-2024-0] [Citation(s) in RCA: 100] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 11/01/2021] [Indexed: 12/16/2022]
Abstract
Rice (Oryza sativa L.) is one of the most important crops in the world. Since the completion of rice reference genome sequences, tremendous progress has been achieved in understanding the molecular mechanisms on various rice traits and dissecting the underlying regulatory networks. In this review, we summarize the research progress of rice biology over past decades, including omics, genome-wide association study, phytohormone action, nutrient use, biotic and abiotic responses, photoperiodic flowering, and reproductive development (fertility and sterility). For the roads ahead, cutting-edge technologies such as new genomics methods, high-throughput phenotyping platforms, precise genome-editing tools, environmental microbiome optimization, and synthetic methods will further extend our understanding of unsolved molecular biology questions in rice, and facilitate integrations of the knowledge for agricultural applications.
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32
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Liu Z, Zhu Y, Shi H, Qiu J, Ding X, Kou Y. Recent Progress in Rice Broad-Spectrum Disease Resistance. Int J Mol Sci 2021; 22:11658. [PMID: 34769087 PMCID: PMC8584176 DOI: 10.3390/ijms222111658] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 10/25/2021] [Accepted: 10/25/2021] [Indexed: 11/25/2022] Open
Abstract
Rice is one of the most important food crops in the world. However, stable rice production is constrained by various diseases, in particular rice blast, sheath blight, bacterial blight, and virus diseases. Breeding and cultivation of resistant rice varieties is the most effective method to control the infection of pathogens. Exploitation and utilization of the genetic determinants of broad-spectrum resistance represent a desired way to improve the resistance of susceptible rice varieties. Recently, researchers have focused on the identification of rice broad-spectrum disease resistance genes, which include R genes, defense-regulator genes, and quantitative trait loci (QTL) against two or more pathogen species or many isolates of the same pathogen species. The cloning of broad-spectrum disease resistance genes and understanding their underlying mechanisms not only provide new genetic resources for breeding broad-spectrum rice varieties, but also promote the development of new disease resistance breeding strategies, such as editing susceptibility and executor R genes. In this review, the most recent advances in the identification of broad-spectrum disease resistance genes in rice and their application in crop improvement through biotechnology approaches during the past 10 years are summarized.
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Affiliation(s)
- Zhiquan Liu
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (Z.L.); (Y.Z.); (H.S.); (J.Q.)
| | - Yujun Zhu
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (Z.L.); (Y.Z.); (H.S.); (J.Q.)
| | - Huanbin Shi
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (Z.L.); (Y.Z.); (H.S.); (J.Q.)
| | - Jiehua Qiu
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (Z.L.); (Y.Z.); (H.S.); (J.Q.)
| | - Xinhua Ding
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian 271018, China;
| | - Yanjun Kou
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (Z.L.); (Y.Z.); (H.S.); (J.Q.)
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33
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Wang W, Li T, Chen Q, Deng B, Deng L, Zeng K. Transcription Factor CsWRKY65 Participates in the Establishment of Disease Resistance of Citrus Fruits to Penicillium digitatum. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:5671-5682. [PMID: 33988021 DOI: 10.1021/acs.jafc.1c01411] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Penicillium digitatum is the primary pathogen that causes serious yield losses worldwide. In our previous study, CsWRKY transcription factors (TFs) and some genes associated with immunity were identified in citrus fruits after P. digitatum infection, but little information is available in the literature on the mechanisms of TFs in citrus disease resistance. In this study, the possible mechanisms of CsWRKY65 participating in the establishment of disease resistance were investigated. Results show that CsWRKY65 was a transcriptional activator in the nucleus. The dual-luciferase transient assays and electrophoretic mobility shift assays showed that CsWRKY65 bound with CsRbohB, CsRbohD, CsCDPK33, and CsPR10 promoters to activate gene transcription. Besides, the transient overexpression of CsWRKY65 induced reactive oxygen species accumulation and increased PR gene expression in Nicotiana benthamiana leaves. The transient overexpression of CsWRKY65 in the citrus peel enhanced the disease resistance against P. digitatum. In conclusion, CsWRKY65 is likely to be involved in regulating the disease resistance to P. digitatum of citrus fruits by directly activating the expressions of CsRbohB, CsRbohD, CsCDPK33, and CsPR10. This study provides new information for the mechanism of citrus WRKY TFs participating in the establishment of disease resistance.
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Affiliation(s)
- Wenjun Wang
- College of Food Science, Southwest University, Chongqing 400715, P. R. China
| | - Ting Li
- College of Food Science, Southwest University, Chongqing 400715, P. R. China
| | - Qi Chen
- College of Food Science, Southwest University, Chongqing 400715, P. R. China
| | - Bing Deng
- College of Food Science, Southwest University, Chongqing 400715, P. R. China
| | - Lili Deng
- College of Food Science, Southwest University, Chongqing 400715, P. R. China
- Research Center of Food Storage & Logistics, Southwest University, Chongqing 400715, P. R. China
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, Chongqing 401331, P. R. China
| | - Kaifang Zeng
- College of Food Science, Southwest University, Chongqing 400715, P. R. China
- Research Center of Food Storage & Logistics, Southwest University, Chongqing 400715, P. R. China
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Zhao X, Qiu T, Feng H, Yin C, Zheng X, Yang J, Peng YL, Zhao W. A novel glycine-rich domain protein, GRDP1, functions as a critical feedback regulator for controlling cell death and disease resistance in rice. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:608-622. [PMID: 32995857 DOI: 10.1093/jxb/eraa450] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 09/25/2020] [Indexed: 06/11/2023]
Abstract
Lesion mimic mutants constitute a valuable genetic resource for unraveling the signaling pathways and molecular mechanisms governing the programmed cell death and defense responses of plants. Here, we identified a lesion mimic mutant, spl-D, from T-DNA insertion rice lines. The mutant exhibited higher accumulation of H2O2, spontaneous cell death, decreased chlorophyll content, up-regulation of defense-related genes, and enhanced disease resistance. The causative gene, OsGRDP1, encodes a cytosol- and membrane-associated glycine-rich domain protein. OsGRDP1 was expressed constitutively in all of the organs of the wild-type plant, but was up-regulated throughout plant development in the spl-D mutant. Both the overexpression and knockdown (RNAi) of OsGRDP1 resulted in the lesion mimic phenotype. Moreover, the intact-protein level of OsGRDP1 was reduced in the spotted leaves from both overexpression and RNAi plants, suggesting that the disruption of intact OsGRDP1 is responsible for lesion formation. OsGRDP1 interacted with an aspartic proteinase, OsAP25. In the spl-D and overexpression plants, proteinase activity was elevated, and lesion formation was partially suppressed by an aspartic proteinase inhibitor. Taken together, our results reveal that OsGRDP1 is a critical feedback regulator, thus contributing to the elucidation of the mechanism underlying cell death and disease resistance.
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Affiliation(s)
- Xiaosheng Zhao
- State Key Laboratory of Agrobiotechnology and College of Plant Protection, China Agricultural University, Beijing, China
| | - Tiancheng Qiu
- State Key Laboratory of Agrobiotechnology and College of Plant Protection, China Agricultural University, Beijing, China
| | - Huijing Feng
- State Key Laboratory of Agrobiotechnology and College of Plant Protection, China Agricultural University, Beijing, China
| | - Changfa Yin
- State Key Laboratory of Agrobiotechnology and College of Plant Protection, China Agricultural University, Beijing, China
| | - Xunmei Zheng
- State Key Laboratory of Agrobiotechnology and College of Plant Protection, China Agricultural University, Beijing, China
| | - Jun Yang
- State Key Laboratory of Agrobiotechnology and College of Plant Protection, China Agricultural University, Beijing, China
| | - You-Liang Peng
- State Key Laboratory of Agrobiotechnology and College of Plant Protection, China Agricultural University, Beijing, China
| | - Wensheng Zhao
- State Key Laboratory of Agrobiotechnology and College of Plant Protection, China Agricultural University, Beijing, China
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35
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Liu H, Dong S, Li M, Gu F, Yang G, Guo T, Chen Z, Wang J. The Class III peroxidase gene OsPrx30, transcriptionally modulated by the AT-hook protein OsATH1, mediates rice bacterial blight-induced ROS accumulation. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2021; 63:393-408. [PMID: 33241917 DOI: 10.1111/jipb.13040] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 11/03/2020] [Indexed: 05/07/2023]
Abstract
Class III peroxidases (CIII Prxs) play critical roles in plant immunity by scavenging reactive oxygen species (ROS). However, the functions of CIII Prxs in rice (Oryza sativa L.) immunity are largely unexplored. Here, we report a Prx precursor, OsPrx30, that is responsive to the bacterial blight Xanthomonas oryzae pv. oryzae (Xoo). OsPrx30 was primarily expressed in rice roots, leaves, and stems, and its protein product was mainly localized at the endoplasmic reticulum. Overexpression of OsPrx30 enhanced the plant's susceptibility to Xoo by maintaining a high level of peroxidase (POD) activity and reducing the content of H2 O2 , whereas depletion of OsPrx30 had the opposite effects. Furthermore, we identified an AT-hook transcription factor, OsATH1, that is specifically bound to the OsPrx30 promoter. As observed in plants overexpressing OsPrx30, depletion of OsATH1 enhanced susceptibility to Xoo. Finally, we demonstrated that depletion of OsATH1 increased histone H3 acetylation at the AT-rich region of the OsPrx30 promoter. Taken together, these results reveal a mechanism underlying the POD-induced natural resistance to bacterial diseases and suggest a model for transcription regulation of Prx genes in rice.
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Affiliation(s)
- Hao Liu
- National Engineering Research Center of Plant Space Breeding, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Provincial Key Laboratory of Crop Genetic Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Shuangyu Dong
- National Engineering Research Center of Plant Space Breeding, South China Agricultural University, Guangzhou, 510642, China
| | - Ming Li
- National Engineering Research Center of Plant Space Breeding, South China Agricultural University, Guangzhou, 510642, China
| | - Fengwei Gu
- National Engineering Research Center of Plant Space Breeding, South China Agricultural University, Guangzhou, 510642, China
| | - Guili Yang
- National Engineering Research Center of Plant Space Breeding, South China Agricultural University, Guangzhou, 510642, China
| | - Tao Guo
- National Engineering Research Center of Plant Space Breeding, South China Agricultural University, Guangzhou, 510642, China
| | - Zhiqiang Chen
- National Engineering Research Center of Plant Space Breeding, South China Agricultural University, Guangzhou, 510642, China
| | - Jiafeng Wang
- National Engineering Research Center of Plant Space Breeding, South China Agricultural University, Guangzhou, 510642, China
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Liu T, Wang H, Liu Z, Pang Z, Zhang C, Zhao M, Ning B, Song B, Liu S, He Z, Wei W, Wu J, Liu Y, Xu P, Zhang S. The 26S Proteasome Regulatory Subunit GmPSMD Promotes Resistance to Phytophthora sojae in Soybean. FRONTIERS IN PLANT SCIENCE 2021; 12:513388. [PMID: 33584766 PMCID: PMC7876454 DOI: 10.3389/fpls.2021.513388] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 01/04/2021] [Indexed: 05/19/2023]
Abstract
Phytophthora root rot, caused by Phytophthora sojae is a destructive disease of soybean (Glycine max) worldwide. We previously confirmed that the bHLH transcription factor GmPIB1 (P. sojae-inducible bHLH transcription factor) reduces accumulation of reactive oxygen species (ROS) in cells by inhibiting expression of the peroxidase-related gene GmSPOD thus improving the resistance of hairy roots to P. sojae. To identify proteins interacting with GmPIB1 and assess their participation in the defense response to P. sojae, we obtained transgenic soybean hairy roots overexpressing GmPIB1 by Agrobacterium rhizogenes mediated transformation and examined GmPIB1 protein-protein interactions using immunoprecipitation combined with mass spectrometry. We identified 392 proteins likely interacting with GmPIB1 and selected 20 candidate genes, and only 26S proteasome regulatory subunit GmPSMD (Genbank accession no. XP_014631720) interacted with GmPIB1 in luciferase complementation and pull-down experiments and yeast two-hybrid assays. Overexpression of GmPSMD (GmPSMD-OE) in soybean hairy roots remarkably improved resistance to P. sojae and RNA interference of GmPSMD (GmPSMD -RNAi) increased susceptibility. In addition, accumulation of total ROS and hydrogen peroxide (H2O2) in GmPSMD-OE transgenic soybean hairy roots were remarkably lower than those of the control after P. sojae infection. Moreover, in GmPSMD-RNAi transgenic soybean hairy roots, H2O2 and the accumulation of total ROS exceeded those of the control. There was no obvious difference in superoxide anion (O2 -) content between control and transgenic hairy roots. Antioxidant enzymes include peroxidase (POD), glutathione peroxidase (GPX), superoxide dismutase (SOD), catalase (CAT) are responsible for ROS scavenging in soybean. The activities of these antioxidant enzymes were remarkably higher in GmPSMD-OE transgenic soybean hairy roots than those in control, but were reduced in GmPSMD-RNAi transgenic soybean hairy roots. Moreover, the activity of 26S proteasome in GmPSMD-OE and GmPIB1-OE transgenic soybean hairy roots was significantly higher than that in control and was significantly lower in PSMD-RNAi soybean hairy roots after P. sojae infection. These data suggest that GmPSMD might reduce the production of ROS by improving the activity of antioxidant enzymes such as POD, SOD, GPX, CAT, and GmPSMD plays a significant role in the response of soybean to P. sojae. Our study reveals a valuable mechanism for regulation of the pathogen response by the 26S proteasome in soybean.
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Affiliation(s)
- Tengfei Liu
- Key Laboratory of Soybean Biology of Chinese Education Ministry, Soybean Research Institute, Northeast Agricultural University, Harbin, China
| | - Huiyu Wang
- Key Laboratory of Soybean Biology of Chinese Education Ministry, Soybean Research Institute, Northeast Agricultural University, Harbin, China
| | - Zhanyu Liu
- Key Laboratory of Soybean Biology of Chinese Education Ministry, Soybean Research Institute, Northeast Agricultural University, Harbin, China
| | - Ze Pang
- Key Laboratory of Soybean Biology of Chinese Education Ministry, Soybean Research Institute, Northeast Agricultural University, Harbin, China
| | - Chuanzhong Zhang
- Key Laboratory of Soybean Biology of Chinese Education Ministry, Soybean Research Institute, Northeast Agricultural University, Harbin, China
| | - Ming Zhao
- Key Laboratory of Soybean Biology of Chinese Education Ministry, Soybean Research Institute, Northeast Agricultural University, Harbin, China
| | - Bin Ning
- Key Laboratory of Soybean Biology of Chinese Education Ministry, Soybean Research Institute, Northeast Agricultural University, Harbin, China
| | - Bo Song
- Key Laboratory of Soybean Biology of Chinese Education Ministry, Soybean Research Institute, Northeast Agricultural University, Harbin, China
| | - Shanshan Liu
- Key Laboratory of Soybean Biology of Chinese Education Ministry, Soybean Research Institute, Northeast Agricultural University, Harbin, China
- *Correspondence: Shanshan Liu,
| | - Zili He
- Key Laboratory of Soybean Biology of Chinese Education Ministry, Soybean Research Institute, Northeast Agricultural University, Harbin, China
| | - Wanling Wei
- Key Laboratory of Soybean Biology of Chinese Education Ministry, Soybean Research Institute, Northeast Agricultural University, Harbin, China
| | - Junjiang Wu
- Key Laboratory of Soybean Cultivation of Ministry of Agriculture P. R. China, Soybean Research Institute of Heilongjiang Academy of Agricultural Sciences, Harbin, China
| | - Yaguang Liu
- Key Laboratory of Soybean Biology of Chinese Education Ministry, Soybean Research Institute, Northeast Agricultural University, Harbin, China
| | - Pengfei Xu
- Key Laboratory of Soybean Biology of Chinese Education Ministry, Soybean Research Institute, Northeast Agricultural University, Harbin, China
- Pengfei Xu,
| | - Shuzhen Zhang
- Key Laboratory of Soybean Biology of Chinese Education Ministry, Soybean Research Institute, Northeast Agricultural University, Harbin, China
- Shuzhen Zhang,
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Wang R, He F, Ning Y, Wang GL. Fine-Tuning of RBOH-Mediated ROS Signaling in Plant Immunity. TRENDS IN PLANT SCIENCE 2020; 25:1060-1062. [PMID: 32861572 DOI: 10.1016/j.tplants.2020.08.001] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 08/01/2020] [Accepted: 08/04/2020] [Indexed: 06/11/2023]
Abstract
Activation of plant respiratory burst oxidase homologs (RBOHs) to generate reactive oxygen species (ROS) is a crucial defense signaling event. RBOH activation occurs predominantly through N-terminal phosphorylation and the binding of a small GTPase. Two recent papers reported that C-terminal phosphorylation and ubiquitination modulates AtRBOHD activity, which extends our understanding of the fine-tuning of RBOH signaling in plant immunity.
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Affiliation(s)
- Ruyi Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Department of Plant Pathology, the Ohio State University, Columbus, OH 43210, USA
| | - Feng He
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yuese Ning
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Guo-Liang Wang
- Department of Plant Pathology, the Ohio State University, Columbus, OH 43210, USA.
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Wang N, Liu Y, Cai Y, Tang J, Li Y, Gai J. The soybean U-box gene GmPUB6 regulates drought tolerance in Arabidopsis thaliana. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 155:284-296. [PMID: 32795910 DOI: 10.1016/j.plaphy.2020.07.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 06/15/2020] [Accepted: 07/10/2020] [Indexed: 06/11/2023]
Abstract
The plant U-box (PUB) proteins function as E3 ligases to poly-ubiquitinate the target proteins for their degradation or post-translational modification. PUBs also play important roles in regulation of diverse biological processes, including plant response to environmental stresses. In this study, the functional characterization of a soybean PUB gene, GmPUB6, was performed. GmPUB6 was mainly localized to peroxisome, and showed E3 ubiquitin ligase activity. The transcript levels of GmPUB6 in soybean leaves and roots were induced by abscisic acid (ABA), high salinity and polyethylene glycol (PEG) treatment. Comparing with the wild-type (WT) plants, overexpression of GmPUB6 in Arabidopsis thaliana decreased plant survival rate after drought stress, reduced seed germination rate and root elongation under mannitol (osmotic) stress, and suppressed ABA- or mannitol-mediated stomatal closure. In addition, under dehydration stress, the relative expression levels of seven stress responsive genes, including ABI1, DREB2A, KIN2, RAB18, RD20, RD29A and RD29B, were lower in GmPUB6-overexpressed plants than WT. Taken together, these results suggest that GmPUB6 functions as a negative regulator in drought tolerance, and plays an important role in osmotic stress and ABA signaling pathways, which might be the possible mechanism of PUB6 participating in drought stress response.
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Affiliation(s)
- Ning Wang
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, National Center for Soybean Improvement, Key Laboratory for Biology and Genetic Improvement of Soybean (General, Ministry of Agriculture), Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing, 210095, China; Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, 210014, China
| | - Yandang Liu
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, National Center for Soybean Improvement, Key Laboratory for Biology and Genetic Improvement of Soybean (General, Ministry of Agriculture), Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yuanyuan Cai
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, National Center for Soybean Improvement, Key Laboratory for Biology and Genetic Improvement of Soybean (General, Ministry of Agriculture), Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jiajun Tang
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, National Center for Soybean Improvement, Key Laboratory for Biology and Genetic Improvement of Soybean (General, Ministry of Agriculture), Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yan Li
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, National Center for Soybean Improvement, Key Laboratory for Biology and Genetic Improvement of Soybean (General, Ministry of Agriculture), Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Junyi Gai
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, National Center for Soybean Improvement, Key Laboratory for Biology and Genetic Improvement of Soybean (General, Ministry of Agriculture), Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing, 210095, China.
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Engelhardt S, Trutzenberg A, Hückelhoven R. Regulation and Functions of ROP GTPases in Plant-Microbe Interactions. Cells 2020; 9:E2016. [PMID: 32887298 PMCID: PMC7565977 DOI: 10.3390/cells9092016] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 08/28/2020] [Accepted: 08/31/2020] [Indexed: 02/07/2023] Open
Abstract
Rho proteins of plants (ROPs) form a specific clade of Rho GTPases, which are involved in either plant immunity or susceptibility to diseases. They are intensively studied in grass host plants, in which ROPs are signaling hubs downstream of both cell surface immune receptor kinases and intracellular nucleotide-binding leucine-rich repeat receptors, which activate major branches of plant immune signaling. Additionally, invasive fungal pathogens may co-opt the function of ROPs for manipulation of the cytoskeleton, cell invasion and host cell developmental reprogramming, which promote pathogenic colonization. Strikingly, mammalian bacterial pathogens also initiate both effector-triggered susceptibility for cell invasion and effector-triggered immunity via Rho GTPases. In this review, we summarize central concepts of Rho signaling in disease and immunity of plants and briefly compare them to important findings in the mammalian research field. We focus on Rho activation, downstream signaling and cellular reorganization under control of Rho proteins involved in disease progression and pathogen resistance.
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Affiliation(s)
| | | | - Ralph Hückelhoven
- Phytopathology, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Emil-Ramann-Straße 2, 85354 Freising, Germany; (S.E.); (A.T.)
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McLellan H, Chen K, He Q, Wu X, Boevink PC, Tian Z, Birch PR. The Ubiquitin E3 Ligase PUB17 Positively Regulates Immunity by Targeting a Negative Regulator, KH17, for Degradation. PLANT COMMUNICATIONS 2020; 1:100020. [PMID: 32715295 PMCID: PMC7371183 DOI: 10.1016/j.xplc.2020.100020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 10/08/2019] [Accepted: 01/02/2020] [Indexed: 05/12/2023]
Abstract
Ubiquitination is a post-translational modification that regulates many processes in plants. Several ubiquitin E3 ligases act as either positive or negative regulators of immunity by promoting the degradation of different substrates. StPUB17 is an E3 ligase that has previously been shown to positively regulate immunity to bacteria, fungi and oomycetes, including the late blight pathogen Phytophthora infestans. Silencing of StPUB17 promotes pathogen colonization and attenuates Cf4/avr4 cell death. Using yeast-2-hybrid and co-immunoprecipitation we identified the putative K-homology (KH) RNA-binding protein (RBP), StKH17, as a candidate substrate for degradation by StPUB17. StKH17 acts as a negative regulator of immunity that promotes P. infestans infection and suppresses specific immune pathways. A KH RBP domain mutant of StKH17 (StKH17GDDG) is no longer able to negatively regulate immunity, indicating that RNA binding is likely required for StKH17 function. As StPUB17 is a known target of the ubiquitin E3 ligase, StPOB1, we reveal an additional step in an E3 ligase regulatory cascade that controls plant defense.
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Affiliation(s)
- Hazel McLellan
- Division of Plant Science, School of Life Science, University of Dundee (at JHI), Invergowrie, Dundee DD2 5DA, UK
| | - Kai Chen
- Key Laboratory of Horticultural Plant Biology (HZAU), Ministry of Education, Key Laboratory of Potato Biology and Biotechnology (HZAU), Ministry of Agriculture and Rural Affairs, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Qin He
- Division of Plant Science, School of Life Science, University of Dundee (at JHI), Invergowrie, Dundee DD2 5DA, UK
- Key Laboratory of Horticultural Plant Biology (HZAU), Ministry of Education, Key Laboratory of Potato Biology and Biotechnology (HZAU), Ministry of Agriculture and Rural Affairs, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Xintong Wu
- Key Laboratory of Horticultural Plant Biology (HZAU), Ministry of Education, Key Laboratory of Potato Biology and Biotechnology (HZAU), Ministry of Agriculture and Rural Affairs, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Petra C. Boevink
- Cell and Molecular Science, James Hutton Institute, Invergowrie, Dundee DD2 5DA, UK
| | - Zhendong Tian
- Key Laboratory of Horticultural Plant Biology (HZAU), Ministry of Education, Key Laboratory of Potato Biology and Biotechnology (HZAU), Ministry of Agriculture and Rural Affairs, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Paul R.J. Birch
- Division of Plant Science, School of Life Science, University of Dundee (at JHI), Invergowrie, Dundee DD2 5DA, UK
- Cell and Molecular Science, James Hutton Institute, Invergowrie, Dundee DD2 5DA, UK
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41
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Zhang Q, Zhang X, Zhuang R, Wei Z, Shu W, Wang X, Kang Z. TaRac6 Is a Potential Susceptibility Factor by Regulating the ROS Burst Negatively in the Wheat- Puccinia striiformis f. sp. tritici Interaction. FRONTIERS IN PLANT SCIENCE 2020; 11:716. [PMID: 32695124 PMCID: PMC7338558 DOI: 10.3389/fpls.2020.00716] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 05/06/2020] [Indexed: 05/30/2023]
Abstract
Rac/Rop proteins play important roles in the regulation of cell growth and plant defense responses. However, the function of Rac/Rop proteins in wheat remains largely unknown. In this study, a small G protein gene, designated as TaRac6, was characterized from wheat (Triticum aestivum) in response to Puccinia striiformis f. sp. tritici (Pst) and was found to be highly homologous to the Rac proteins identified in other plant species. Transient expression analyses of the TaRac6-GFP fusion protein in Nicotiana benthamiana leaves showed that TaRac6 was localized in the whole cell. Furthermore, transient expression of TaRac6 inhibited Bax-triggered plant cell death (PCD) in N. benthamiana. Transcript accumulation of TaRac6 was increased at 24 h post-inoculation (hpi) in the compatible interaction between wheat and Pst, while it was not induced in an incompatible interaction. More importantly, silencing of TaRac6 by virus induced gene silencing (VIGS) enhanced the resistance of wheat (Suwon 11) to Pst (CYR31) by producing fewer uredinia. Histological observations revealed that the hypha growth of Pst was markedly inhibited along with more H2O2 generated in the TaRac6-silenced leaves in response to Pst. Moreover, transcript levels of TaCAT were significantly down-regulated, while those of TaSOD and TaNOX were significantly up-regulated. These results suggest that TaRac6 functions as a potential susceptibility factor, which negatively regulate the reactive oxygen species (ROS) burst in the wheat-Pst interaction.
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Affiliation(s)
- Qiong Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, China
| | - Xinmei Zhang
- College of Life Sciences, Northwest A&F University, Yangling, China
| | - Rui Zhuang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, China
| | - Zetong Wei
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, China
| | - Weixue Shu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, China
| | - Xiaojie Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, China
| | - Zhensheng Kang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, China
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42
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Zhang C, Wei Y, Xu L, Wu KC, Yang L, Shi CN, Yang GY, Chen D, Yu FF, Xie Q, Ding SW, Wu JG. A Bunyavirus-Inducible Ubiquitin Ligase Targets RNA Polymerase IV for Degradation during Viral Pathogenesis in Rice. MOLECULAR PLANT 2020; 13:836-850. [PMID: 32087369 DOI: 10.1016/j.molp.2020.02.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 01/18/2020] [Accepted: 02/14/2020] [Indexed: 05/19/2023]
Abstract
The ubiquitin-proteasome system (UPS) is an important post-translational regulatory mechanism that controls many cellular functions in eukaryotes. Here, we show that stable expression of P3 protein encoded by Rice grassy stunt virus (RGSV), a negative-strand RNA virus in the Bunyavirales, causes developmental abnormities similar to the disease symptoms caused by RGSV, such as dwarfing and excess tillering, in transgenic rice plants. We found that both transgenic expression of P3 and RGSV infection induce ubiquitination and UPS-dependent degradation of rice NUCLEAR RNA POLYMERASE D1a (OsNRPD1a), one of two orthologs of the largest subunit of plant-specific RNA polymerase IV (Pol IV), which is required for RNA-directed DNA methylation (RdDM). Furthermore, we identified a P3-inducible U-box type E3 ubiquitin ligase, designated as P3-inducible protein 1 (P3IP1), which interacts with OsNRPD1a and mediates its ubiquitination and UPS-dependent degradation in vitro and in vivo. Notably, both knockdown of OsNRPD1 and overexpression of P3IP1 in rice plants induced developmental phenotypes similar to RGSV disease symptomss. Taken together, our findings reveal a novel virulence mechanism whereby plant pathogens target host RNA Pol IV for UPS-dependent degradation to induce disease symptoms. Our study also identified an E3 ubiquitin ligase, which targets the RdDM compotent NRPD1 for UPS-mediated degradation in rice.
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Affiliation(s)
- Chao Zhang
- Vector-borne Virus Research Center, Key Laboratory of Plant Virology of Fujian Province, Institute of Plant Virology, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Ying Wei
- Vector-borne Virus Research Center, Key Laboratory of Plant Virology of Fujian Province, Institute of Plant Virology, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Le Xu
- Center for Plant Biology, Tsinghua-Peking Center for Life Sciences, College of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Kang-Cheng Wu
- Vector-borne Virus Research Center, Key Laboratory of Plant Virology of Fujian Province, Institute of Plant Virology, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Liang Yang
- Vector-borne Virus Research Center, Key Laboratory of Plant Virology of Fujian Province, Institute of Plant Virology, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Chao-Nan Shi
- Vector-borne Virus Research Center, Key Laboratory of Plant Virology of Fujian Province, Institute of Plant Virology, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Guo-Yi Yang
- Vector-borne Virus Research Center, Key Laboratory of Plant Virology of Fujian Province, Institute of Plant Virology, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Dong Chen
- Vector-borne Virus Research Center, Key Laboratory of Plant Virology of Fujian Province, Institute of Plant Virology, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Fei-Fei Yu
- State Key Laboratory of Plant Genomics, National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Qi Xie
- State Key Laboratory of Plant Genomics, National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Shou-Wei Ding
- Department of Microbiology and Plant Pathology and Center for Plant Cell Biology, Institute for Integrative Genome Biology, University of California, Riverside, CA, 92521, USA
| | - Jian-Guo Wu
- Vector-borne Virus Research Center, Key Laboratory of Plant Virology of Fujian Province, Institute of Plant Virology, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
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Gao Z, Liu Q, Zhang Y, Chen D, Zhan X, Deng C, Cheng S, Cao L. OsCUL3a-Associated Molecular Switches Have Functions in Cell Metabolism, Cell Death, and Disease Resistance. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:5471-5482. [PMID: 32320244 DOI: 10.1021/acs.jafc.9b07426] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
This study applies parallel reaction monitoring (PRM) proteomics and CRISPR-Cas9 mutagenesis to identify relationships between cell metabolism, cell death, and disease resistance. In oscul3a (oscullin3a) mutants, OsCUL3a-associated molecular switches are responsible for disrupted cell metabolism that leads to increased total lipid content in rice grain, a late accumulation of H2O2 in leaves, enhanced Xanthomonas oryzae pv. oryzae disease resistance, and suppressed panicle and first internode growth. In oscul3a mutants, PRM-confirmed upregulated molecular switch proteins include lipoxygenases (CM-LOX1 and CM-LOX2), suggesting a novel connection between ferroptosis and rice lesion mimic formation. Rice immunity-associated proteins OsNPR1 and OsNPR3 were shown to interact with each other and have opposing regulatory effects based on the cell death phenotype of osnpr1/oscul3a and osnpr3/oscul3a double mutants. Together, these results describe a network that regulates plant growth, disease resistance, and grain quality that includes the E3 ligase OsCUL3a, cell metabolism-associated molecular switches, and immunity switches OsNPR1 and OsNPR3.
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Affiliation(s)
- Zhiqiang Gao
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, Zhejiang 310006, People's Republic of China
- Key Laboratory for Zhejiang Super Rice Research, China National Rice Research Institute, Hangzhou, Zhejiang 310006, People's Republic of China
- College of Life Sciences, Gannan Normal University, Ganzhou, Jiangxi 341000, People's Republic of China
| | - Qunen Liu
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, Zhejiang 310006, People's Republic of China
- Key Laboratory for Zhejiang Super Rice Research, China National Rice Research Institute, Hangzhou, Zhejiang 310006, People's Republic of China
| | - Yingxin Zhang
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, Zhejiang 310006, People's Republic of China
- Key Laboratory for Zhejiang Super Rice Research, China National Rice Research Institute, Hangzhou, Zhejiang 310006, People's Republic of China
| | - Daibo Chen
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, Zhejiang 310006, People's Republic of China
- Key Laboratory for Zhejiang Super Rice Research, China National Rice Research Institute, Hangzhou, Zhejiang 310006, People's Republic of China
| | - Xiaodeng Zhan
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, Zhejiang 310006, People's Republic of China
- Key Laboratory for Zhejiang Super Rice Research, China National Rice Research Institute, Hangzhou, Zhejiang 310006, People's Republic of China
| | - Chenwei Deng
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, Zhejiang 310006, People's Republic of China
- Key Laboratory for Zhejiang Super Rice Research, China National Rice Research Institute, Hangzhou, Zhejiang 310006, People's Republic of China
| | - Shihua Cheng
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, Zhejiang 310006, People's Republic of China
- Key Laboratory for Zhejiang Super Rice Research, China National Rice Research Institute, Hangzhou, Zhejiang 310006, People's Republic of China
| | - Liyong Cao
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, Zhejiang 310006, People's Republic of China
- Key Laboratory for Zhejiang Super Rice Research, China National Rice Research Institute, Hangzhou, Zhejiang 310006, People's Republic of China
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44
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Li W, Deng Y, Ning Y, He Z, Wang GL. Exploiting Broad-Spectrum Disease Resistance in Crops: From Molecular Dissection to Breeding. ANNUAL REVIEW OF PLANT BIOLOGY 2020; 71:575-603. [PMID: 32197052 DOI: 10.1146/annurev-arplant-010720-022215] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Plant diseases reduce crop yields and threaten global food security, making the selection of disease-resistant cultivars a major goal of crop breeding. Broad-spectrum resistance (BSR) is a desirable trait because it confers resistance against more than one pathogen species or against the majority of races or strains of the same pathogen. Many BSR genes have been cloned in plants and have been found to encode pattern recognition receptors, nucleotide-binding and leucine-rich repeat receptors, and defense-signaling and pathogenesis-related proteins. In addition, the BSR genes that underlie quantitative trait loci, loss of susceptibility and nonhost resistance have been characterized. Here, we comprehensively review the advances made in the identification and characterization of BSR genes in various species and examine their application in crop breeding. We also discuss the challenges and their solutions for the use of BSR genes in the breeding of disease-resistant crops.
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Affiliation(s)
- Wei Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, College of Plant Protection, Hunan Agricultural University, Changsha 410128, China
| | - Yiwen Deng
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China;
| | - Yuese Ning
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Zuhua He
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China;
| | - Guo-Liang Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- Department of Plant Pathology, The Ohio State University, Columbus, Ohio 43210, USA;
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Kim EJ, Park SW, Hong WJ, Silva J, Liang W, Zhang D, Jung KH, Kim YJ. Genome-wide analysis of RopGEF gene family to identify genes contributing to pollen tube growth in rice (Oryza sativa). BMC PLANT BIOLOGY 2020; 20:95. [PMID: 32131749 PMCID: PMC7057574 DOI: 10.1186/s12870-020-2298-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 02/20/2020] [Indexed: 05/05/2023]
Abstract
BACKGROUND In plants, the key roles played by RopGEF-mediated ROP signaling in diverse processes, including polar tip growth, have been identified. Despite their important roles in reproduction, a comprehensive analysis of RopGEF members has not yet been performed in rice (Oryza sativa). To determine whether RopGEF regulators are involved in rice pollen tube growth, we performed genome-wide analysis of this family in rice. RESULTS Phylogenomic and meta-expression analysis of eleven RopGEFs in rice showed that four genes were preferentially expressed in mature pollen. These four genes contain the plant-specific Rop nucleotide exchanger (PRONE) domain and possible phosphorylated residues, suggesting a conserved role in polar tip growth with Arabidopsis thaliana. In subcellular localization analysis of the four RopGEFs through tobacco (Nicotiana benthamiana) infiltration, four proteins were predominantly identified in plasma membrane. Moreover, double mutants of RopGEF2/8 exhibited reduced pollen germination, causing partial male sterility. These genes possess unique cis-acting elements in their promoters compared with the other RopGEF genes. CONCLUSIONS In this study, four RopGEF genes were identified as pollen-specific gene in eleven members of rice, and the expression pattern, promoter analysis, and evolutionary relationship of the RopGEF family were studied compared with Arabidopsis. Our study indicated that four RopGEF genes might function during pollen germination in distinct subcellular localization. Our study could provide valuable information on the functional study of RopGEF in rice.
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Affiliation(s)
- Eui-Jung Kim
- Graduate School of Biotechnology and Crop Biotech Institute, Kyung Hee University, Yongin, 17104 South Korea
| | - Sung-Wook Park
- Graduate School of Biotechnology and Crop Biotech Institute, Kyung Hee University, Yongin, 17104 South Korea
| | - Woo-Jong Hong
- Graduate School of Biotechnology and Crop Biotech Institute, Kyung Hee University, Yongin, 17104 South Korea
| | - Jeniffer Silva
- Graduate School of Biotechnology and Crop Biotech Institute, Kyung Hee University, Yongin, 17104 South Korea
| | - Wanqi Liang
- Joint International Research Laboratory of Metabolic and Developmental Sciences, State Key Laboratory of Hybrid Rice, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University–University of Adelaide Joint Centre for Agriculture and Health, Shanghai Jiao Tong University, Shanghai, China
| | - Dabing Zhang
- Graduate School of Biotechnology and Crop Biotech Institute, Kyung Hee University, Yongin, 17104 South Korea
- Joint International Research Laboratory of Metabolic and Developmental Sciences, State Key Laboratory of Hybrid Rice, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University–University of Adelaide Joint Centre for Agriculture and Health, Shanghai Jiao Tong University, Shanghai, China
| | - Ki-Hong Jung
- Graduate School of Biotechnology and Crop Biotech Institute, Kyung Hee University, Yongin, 17104 South Korea
| | - Yu-Jin Kim
- Graduate School of Biotechnology and Crop Biotech Institute, Kyung Hee University, Yongin, 17104 South Korea
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Chen Q, Huang R, Xu Z, Zhang Y, Li L, Fu J, Wang G, Wang J, Du X, Gu R. Label-Free Comparative Proteomic Analysis Combined with Laser-Capture Microdissection Suggests Important Roles of Stress Responses in the Black Layer of Maize Kernels. Int J Mol Sci 2020; 21:ijms21041369. [PMID: 32085613 PMCID: PMC7072901 DOI: 10.3390/ijms21041369] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 02/14/2020] [Accepted: 02/16/2020] [Indexed: 12/20/2022] Open
Abstract
The black layer (BL) is traditionally used as an indicator for kernel harvesting in maize, as it turns visibly dark when the kernel reaches physiological maturity. However, the molecular roles of BL in kernel development have not been fully elucidated. In this work, microscopy images showed that BL began to appear at a growth stage earlier than 10 days after pollination (DAP), and its color gradually deepened to become dark as the development period progressed. Scanning electron microscopy observations revealed that BL is a tissue structure composed of several layers of cells that are gradually squeezed and compressed during kernel development. Laser-capture microdissection (LCM) was used to sample BL and its neighboring inner tissue, basal endosperm transfer layer (BETL), and outer tissue, inner epidermis (IEP), from 20 DAP of kernels. Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry profiling (MALDI-TOF MS profiling) detected 41, 104, and 120 proteins from LCM-sampled BL, BETL, and IEP, respectively. Gene ontology (GO) analysis indicated that the 41 BL proteins were primarily involved in the response to stress and stimuli. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis found that the BL proteins were enriched in several defense pathways, such as the ascorbate and aldarate metabolic pathways. Among the 41 BL proteins, six were BL-specific proteins that were only detected from BL. Annotations of five BL-specific proteins were related to stress responses. During kernel development, transcriptional expression of most BL proteins showed an increase, followed by a decrease, and reached a maximum zero to 20 DAP. These results suggest a role for BL in stress responses for protecting filial tissue against threats from maternal sides, which helps to elucidate the biological functions of BL.
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Affiliation(s)
- Quanquan Chen
- Center for Seed Science and Technology, Beijing Innovation Center for Seed Technology (MOA), Key Laboratory of Crop Heterosis Utilization (MOE), College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; (Q.C.); (R.H.); (Z.X.); (Y.Z.); (L.L.); (J.W.)
| | - Ran Huang
- Center for Seed Science and Technology, Beijing Innovation Center for Seed Technology (MOA), Key Laboratory of Crop Heterosis Utilization (MOE), College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; (Q.C.); (R.H.); (Z.X.); (Y.Z.); (L.L.); (J.W.)
| | - Zhenxiang Xu
- Center for Seed Science and Technology, Beijing Innovation Center for Seed Technology (MOA), Key Laboratory of Crop Heterosis Utilization (MOE), College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; (Q.C.); (R.H.); (Z.X.); (Y.Z.); (L.L.); (J.W.)
| | - Yaxin Zhang
- Center for Seed Science and Technology, Beijing Innovation Center for Seed Technology (MOA), Key Laboratory of Crop Heterosis Utilization (MOE), College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; (Q.C.); (R.H.); (Z.X.); (Y.Z.); (L.L.); (J.W.)
| | - Li Li
- Center for Seed Science and Technology, Beijing Innovation Center for Seed Technology (MOA), Key Laboratory of Crop Heterosis Utilization (MOE), College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; (Q.C.); (R.H.); (Z.X.); (Y.Z.); (L.L.); (J.W.)
| | - Junjie Fu
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (J.F.); (G.W.)
| | - Guoying Wang
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (J.F.); (G.W.)
| | - Jianhua Wang
- Center for Seed Science and Technology, Beijing Innovation Center for Seed Technology (MOA), Key Laboratory of Crop Heterosis Utilization (MOE), College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; (Q.C.); (R.H.); (Z.X.); (Y.Z.); (L.L.); (J.W.)
| | - Xuemei Du
- Center for Seed Science and Technology, Beijing Innovation Center for Seed Technology (MOA), Key Laboratory of Crop Heterosis Utilization (MOE), College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; (Q.C.); (R.H.); (Z.X.); (Y.Z.); (L.L.); (J.W.)
- Correspondence: (X.D.); (R.G.)
| | - Riliang Gu
- Center for Seed Science and Technology, Beijing Innovation Center for Seed Technology (MOA), Key Laboratory of Crop Heterosis Utilization (MOE), College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; (Q.C.); (R.H.); (Z.X.); (Y.Z.); (L.L.); (J.W.)
- Correspondence: (X.D.); (R.G.)
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Qin Q, Wang Y, Huang L, Du F, Zhao X, Li Z, Wang W, Fu B. A U-box E3 ubiquitin ligase OsPUB67 is positively involved in drought tolerance in rice. PLANT MOLECULAR BIOLOGY 2020; 102:89-107. [PMID: 31768809 DOI: 10.1007/s11103-019-00933-8] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 11/19/2019] [Indexed: 05/29/2023]
Abstract
OsPUB67, a U-box E3 ubiquitin ligase, may interact with two drought tolerance negative regulators (OsRZFP34 and OsDIS1) and improve drought tolerance by enhancing the reactive oxygen scavenging ability and stomatal closure. E3 ubiquitin ligases are major components of the ubiquitination cascade and contribute to the biotic and abiotic stress response in plants. In the present study, we show that a rice drought responsive gene, OsPUB67, encoding the U-box E3 ubiquitin ligase was significantly induced by drought, salt, cold, JA, and ABA, and was expressed in nuclei, cytoplasm, and membrane systems. This distribution of expression suggests a significant role for OsPUB67 in a wide range of biological processes and abiotic stress response. Over-expression of OsPUB67 improved drought stress tolerance by enhancing the reactive oxygen scavenging ability and stomatal closure. Bimolecular fluorescence complementation assays revealed that a few E2s interacted with OsPUB67 with unique functional implications in different cell components. Further evidence showed that several E3 ubiquitin ligases interacted with OsPUB67, especially OsRZFP34 and OsDIS1, which are negative regulators of drought tolerance. This interaction on the stomata implied OsPUB67 might function as a heterodimeric ubiquitination complex in response to drought stress. Comprehensive transcriptome analysis revealed OsPUB67 participated in regulating genes involved in the abiotic stress response and transcriptional regulation in an ABA-dependent manner. Our findings revealed OsPUB67 mediated a multilayered complex drought stress tolerance mechanism.
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Affiliation(s)
- Qiao Qin
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yinxiao Wang
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Liyu Huang
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, China
- School of Agriculture, Yunnan University, Yunnan, China
| | - Fengping Du
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiuqin Zhao
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhikang Li
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, China
- College of Agronomy, Anhui Agricultural University, Hefei, China
| | - Wensheng Wang
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, China.
- College of Agronomy, Anhui Agricultural University, Hefei, China.
| | - Binying Fu
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, China.
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Chen L, Deng R, Liu G, Jin J, Wu J, Liu X. Cytological and transcriptome analyses reveal OsPUB73 defect affects the gene expression associated with tapetum or pollen exine abnormality in rice. BMC PLANT BIOLOGY 2019; 19:546. [PMID: 31823718 PMCID: PMC6902612 DOI: 10.1186/s12870-019-2175-2] [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: 09/12/2019] [Accepted: 11/29/2019] [Indexed: 05/31/2023]
Abstract
BACKGROUND As one of the main crops in the world, sterility of rice (Oryza sativa L.) significantly affects the production and leads to yield decrease. Our previous research showed that OsPUB73, which encodes U-box domain-containing protein 73, may be associated with male sterility. However, little information is available on this gene that is required for anther development. In the present study, we knocked out OsPUB73 by using the CRISPR/Cas9 system and studied the cytological and transcriptome of the gene-defect associated with pollen development and sterility in the rice variety (Taichung 65). RESULTS The sequence analysis indicated that OsPUB73 was comprised of 3 exons and 2 introns, of which CDS encoded 586 amino acids including a U-box domain. The expression pattern of OsPUB73 showed that it was highly expressed in the anther during meiosis stage. The ospub73 displayed low pollen fertility (19.45%), which was significantly lower than wild type (WT) (85.37%). Cytological observation showed tapetum vacuolated at the meiosis stage and pollen exine was abnormal at the bi-cellular pollen stage of ospub73. RNA-seq analysis detected 2240 down and 571 up-regulated genes in anther of ospub73 compared with WT during meiosis stage. Among of 2240 down-regulated genes, seven known genes were associated with tapetal cell death or pollen exine development, including CYP703A3 (Cytochrome P450 Hydroxylase703A3), CYP704B2 (Cytochrome P450 Hydroxylase704B2), DPW (Defective Pollen Wall), PTC1 (Persistant Tapetal Cell1), UDT1 (Undeveloped Tapetum1), OsAP37 (Aspartic protease37) and OsABCG15 (ATP binding cassette G15), which were validated by quantitative real-time polymerase chain reaction (qRT-PCR). These results suggested OsPUB73 may play an important role in tapetal or pollen exine development and resulted in pollen partial sterility. CONCLUSION Our results revealed that OsPUB73 plays an important role in rice male reproductive development, which provides valuable information about the molecular mechanisms of the U-box in rice male reproductive development.
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Affiliation(s)
- Lin Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642 China
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou, 510642 China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642 China
- Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China
- Guangdong Key Laboratory for New Technology Research of Vegetables, Guangzhou, 510640 China
| | - Ruilian Deng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642 China
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou, 510642 China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642 China
| | - Guoqiang Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642 China
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou, 510642 China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642 China
| | - Jing Jin
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou, 510642 China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642 China
| | - Jinwen Wu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642 China
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou, 510642 China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642 China
| | - Xiangdong Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642 China
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou, 510642 China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642 China
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Gao Z, Liu Q, Zhang Y, Fang H, Zhang Y, Sinumporn S, Abbas A, Ning Y, Wang GL, Cheng S, Cao L. A proteomic approach identifies novel proteins and metabolites for lesion mimic formation and disease resistance enhancement in rice. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2019; 287:110182. [PMID: 31481196 DOI: 10.1016/j.plantsci.2019.110182] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 06/05/2019] [Accepted: 06/29/2019] [Indexed: 06/10/2023]
Abstract
Lesion mimic mutants are ideal genetic materials to study programmed cell death and defense signaling in plants. However, the molecular basis of lesion mimic formation remains largely unknown. Here, we first used a proteomic approach to identify differentially expressed proteins during dynamic lesion mimic formation in the rice oscul3a mutant, then electron microscope observation and physiological assays were used to analyze the mutant. The oscul3a mutant had disrupted cell metabolism balance, and the identified differentially expressed proteins were mainly located in the chloroplast and cytoplasm, which caused enhanced lipid metabolism, but suppressed carbon/nitrogen metabolism with reduced growth and grain quality. The oscul3a mutant had higher salicylic acid (SA) concentration in leaves, and H2O2 was shown to accumulate late in the formation of lesions. The secondary metabolite coumarin induced reactive oxygen species (ROS) and had rice blast resistance activity. Moreover, the cell death initiated lesion mimic formation of oscul3a mutant was light-sensitive, which might be associated with metabolite biosynthesis and accumulation. This study sheds light on the metabolic transition associated with cell death and defense response, which is under tight regulation by OsCUL3a and metabolism-related proteins, and the newly identified chemicals in the secondary metabolic pathway can potentially be used to control disease in crop plants.
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Affiliation(s)
- Zhiqiang Gao
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, Zhejiang, 310006, People's Republic of China; Key Laboratory for Zhejiang Super Rice Research, China National Rice Research Institute, Hangzhou, Zhejiang, 310006, People's Republic of China.
| | - Qunen Liu
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, Zhejiang, 310006, People's Republic of China; Key Laboratory for Zhejiang Super Rice Research, China National Rice Research Institute, Hangzhou, Zhejiang, 310006, People's Republic of China.
| | - Yingxin Zhang
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, Zhejiang, 310006, People's Republic of China; Key Laboratory for Zhejiang Super Rice Research, China National Rice Research Institute, Hangzhou, Zhejiang, 310006, People's Republic of China.
| | - Hong Fang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, People's Republic of China.
| | - Yue Zhang
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, Zhejiang, 310006, People's Republic of China; Key Laboratory for Zhejiang Super Rice Research, China National Rice Research Institute, Hangzhou, Zhejiang, 310006, People's Republic of China.
| | - Sittipun Sinumporn
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, Zhejiang, 310006, People's Republic of China; Key Laboratory for Zhejiang Super Rice Research, China National Rice Research Institute, Hangzhou, Zhejiang, 310006, People's Republic of China; Thung Kula Ronghai Roi Et Campus, Rajamangala University of Technology Isan, Nakhon Ratchasima 30000, Thailand.
| | - Adil Abbas
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, Zhejiang, 310006, People's Republic of China; Key Laboratory for Zhejiang Super Rice Research, China National Rice Research Institute, Hangzhou, Zhejiang, 310006, People's Republic of China.
| | - Yuese Ning
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, People's Republic of China.
| | - Guo-Liang Wang
- Department of Plant Pathology, The Ohio State University, Columbus, OH 43210, USA.
| | - Shihua Cheng
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, Zhejiang, 310006, People's Republic of China; Key Laboratory for Zhejiang Super Rice Research, China National Rice Research Institute, Hangzhou, Zhejiang, 310006, People's Republic of China.
| | - Liyong Cao
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, Zhejiang, 310006, People's Republic of China; Key Laboratory for Zhejiang Super Rice Research, China National Rice Research Institute, Hangzhou, Zhejiang, 310006, People's Republic of China.
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50
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Hui S, Liu H, Zhang M, Chen D, Li Q, Tian J, Xiao J, Li X, Wang S, Yuan M. The host basal transcription factor IIA subunits coordinate for facilitating infection of TALEs-carrying bacterial pathogens in rice. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2019; 284:48-56. [PMID: 31084878 DOI: 10.1016/j.plantsci.2019.04.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 03/13/2019] [Accepted: 04/03/2019] [Indexed: 06/09/2023]
Abstract
Many plant-pathogenic Xanthomonas rely largely on secreting virulence transcription activator-like effectors (TALEs) proteins into plant nucleus to activate host susceptibility genes to cause disease, the process is dependent on pathogen TALEs association with host plants basal transcription factor IIA small subunit TFIIAγ. TFIIAγ together with large subunit TFIIAαβ constitute as a key component of RNA polymerase II complex for transcriptome initiation. However, whether TFIIAαβ coordinates or competes with pathogen TALEs for interaction with TFIIAγ to activate transcript of TALEs-targeting genes is unclear. Here, we showed that TALE-carrying bacterial pathogens Xanthomonas oryzae pv. oryzae (Xoo) and Xanthomonas oryzae pv. oryzicola (Xoc), the causal agent for bacterial leaf blight and bacterial leaf streak in rice, using their major virulence TALEs to physically associate with N-terminal of OsTFIIAγ5. OsTFIIAα and OsTFIIAβ which are post-translationally mature proteins of OsTFIIAαβ separately bound to N- and C-terminal of OsTFIIAγ5. OsTFIIAα coordinated with TALEs for binding with OsTFIIAγ5 to upregulate rice susceptibility genes to cause disease. Conversely, suppression of OsTFIIAαβ attenuated TALEs-targeting genes transcription, thus improved broad-spectrum disease resistance of rice to Xoo and Xoc. These results provide an applicable strategy for improving resistance to TALE-carrying pathogens in rice by appropriate suppression of plant basal transcription factors expression.
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Affiliation(s)
- Shugang Hui
- National Key Laboratory of Crop Genetic Improvement, National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, 430070, China
| | - Huiling Liu
- National Key Laboratory of Crop Genetic Improvement, National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, 430070, China
| | - Meng Zhang
- National Key Laboratory of Crop Genetic Improvement, National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, 430070, China
| | - Dan Chen
- National Key Laboratory of Crop Genetic Improvement, National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, 430070, China
| | - Qingqing Li
- National Key Laboratory of Crop Genetic Improvement, National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, 430070, China
| | - Jingjing Tian
- National Key Laboratory of Crop Genetic Improvement, National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, 430070, China
| | - Jinghua Xiao
- National Key Laboratory of Crop Genetic Improvement, National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, 430070, China
| | - Xianghua Li
- National Key Laboratory of Crop Genetic Improvement, National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, 430070, China
| | - Shiping Wang
- National Key Laboratory of Crop Genetic Improvement, National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, 430070, China
| | - Meng Yuan
- National Key Laboratory of Crop Genetic Improvement, National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, 430070, China.
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