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

doi:10.3389/fpls.2021.699303

	OsNAC2 Is Involved in Multiple Hormonal Pathways to Mediate Germination of Rice Seeds and Establishment of Seedling
	Yu, Jiangtao 1; Mao, Chanjuan 1; Zhong, Qun 1; Yao, Xuefeng 2; Li, Peng 3; Liu, Chunming2 ; Ming, Feng 1
	2021
发表期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
卷号	12
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.
关键词	rice OsNAC2 ethylene abscisic acid seed germination seedling growth
学科领域	Plant Sciences
DOI	10.3389/fpls.2021.699303
收录类别	SCI
语种	英语
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)
WOS记录号	WOS:000681632000001
出版者	FRONTIERS MEDIA SA
文献子类	Article
出版地	LAUSANNE
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]
作者邮箱	fming@fudan.edu.cn ; cmliu@ibcas.ac.cn
作品OA属性	gold, Green Published
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	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 Normal Univ, Coll Life Sci, Shanghai Key Lab Plant Mol Sci, Shanghai, Peoples R China 2.Shanghai Acad Agr Sci, Biotechnol Res Inst, Shanghai, Peoples R China 3.Chinese Acad Sci, Inst Bot, Key Lab Plant Mol Physiol, Beijing, Peoples R China 4.Chinese Acad Agr Sci, Inst Crop Sci, Beijing, 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).

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