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OsNAC2 Is Involved in Multiple Hormonal Pathways to Mediate Germination of Rice Seeds and Establishment of Seedling

文献类型：期刊论文

作者Yu, Jiangtao4; Mao, Chanjuan4; Zhong, Qun4; Yao, Xuefeng1; Li, Peng2; Liu, Chunming1; Ming, Feng4
刊名FRONTIERS IN PLANT SCIENCE
出版日期2021
卷号12
关键词rice OsNAC2 ethylene abscisic acid seed germination seedling growth
ISSN号1664-462X
DOI10.3389/fpls.2021.699303
文献子类Article
英文摘要The germination of seeds and establishment of seedling are the preconditions of plant growth and are antagonistically regulated by multiple phytohormones, e.g., ethylene, abscisic acid (ABA), and gibberellic acid (GA). However, the interactions between these phytohormones and their upstream transcriptional regulation during the seed and seedling growth in rice remain poorly understood. Here, we demonstrated a rice NAC (NAM-ATAF-CUC) transcription factor, OsNAC2, the overexpression of which increases the ethylene sensitivity in rice roots during the seedling period. Further study proved that OsNAC2 directly activates the expressions of OsACO and OsACO3, enhancing ethylene synthesis, and then retards seedling establishment. Moreover, OsNAC2 delays the germination of seeds and coleoptile growth through the ABA pathway instead of the ethylene and GA pathway, by targeting the promoters of OsNCED3, OsZEP1, and OsABA8ox1. We also found that OsNAC2 regulates downstream targets in a time-dependent manner by binding to the promoter of OsKO2 in the seedling period but not in the germination stage. Our finding enriched the regulatory network of ethylene, ABA, and GA in the germination of rice seeds and seedling growth, and uncovered new insights into the difference of transcription factors in targeting their downstream components.
学科主题Plant Sciences
出版地LAUSANNE
WOS关键词NAC TRANSCRIPTION FACTOR ; ABSCISIC-ACID ; ETHYLENE-RESPONSE ; FACTOR PROMOTES ; ARABIDOPSIS ; GROWTH ; AUXIN ; GIBBERELLIN ; RECEPTORS ; CYTOKININ
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000681632000001
出版者FRONTIERS MEDIA SA
资助机构Ministry of Agriculture of the People's Republic of China [2016ZX08009-001-008] ; National Key R&D Program of China [2018YFD1000400] ; Science and Technology Commission of Shanghai Municipality [18DZ2260500] ; Shanghai Engineering Research Center of Plant Germplasm Resources [17DZ2252700] ; National Natural Science Foundation of China [31801321] ; Natural Science Foundation of Shanghai [20ZR1441000]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/26610]  
专题中科院植物分子生理学重点实验室
作者单位1.Shanghai Acad Agr Sci, Biotechnol Res Inst, Shanghai, Peoples R China
2.Chinese Acad Sci, Inst Bot, Key Lab Plant Mol Physiol, Beijing, Peoples R China
3.Chinese Acad Agr Sci, Inst Crop Sci, Beijing, Peoples R China
4.Shanghai Normal Univ, Coll Life Sci, Shanghai Key Lab Plant Mol Sci, Shanghai, Peoples R China
推荐引用方式
GB/T 7714		 Yu, Jiangtao,Mao, Chanjuan,Zhong, Qun,et al. OsNAC2 Is Involved in Multiple Hormonal Pathways to Mediate Germination of Rice Seeds and Establishment of Seedling[J]. FRONTIERS IN PLANT SCIENCE,2021,12.
APA Yu, Jiangtao.,Mao, Chanjuan.,Zhong, Qun.,Yao, Xuefeng.,Li, Peng.,...&Ming, Feng.(2021).OsNAC2 Is Involved in Multiple Hormonal Pathways to Mediate Germination of Rice Seeds and Establishment of Seedling.FRONTIERS IN PLANT SCIENCE,12.
MLA Yu, Jiangtao,et al."OsNAC2 Is Involved in Multiple Hormonal Pathways to Mediate Germination of Rice Seeds and Establishment of Seedling".FRONTIERS IN PLANT SCIENCE 12(2021).

入库方式： OAI收割

来源：植物研究所

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