Arabidopsis Transcription Factors SPL1 and SPL12 Confer Plant Thermotolerance at Reproductive Stage

doi:10.1016/j.molp.2017.03.010

	Arabidopsis Transcription Factors SPL1 and SPL12 Confer Plant Thermotolerance at Reproductive Stage
	Chao, Lu-Men 1; Liu, Yao-Qian2 ; Chen, Dian-Yang 1; Xue, Xue-Yi 1; Mao, Ying-Bo 1; Chen, Xiao-Ya1,2,3
	2017-05
发表期刊	MOLECULAR PLANT (IF:17.1[JCR-2023],21.4[5-Year])
ISSN	1674-2052
卷号	10 期号:5 页码:735-748
发表状态	已发表
DOI	10.1016/j.molp.2017.03.010
摘要	Plant reproductive organs are vulnerable to heat, but regulation of heat-shock responses in inflorescence is largely uncharacterized. Here, we report that two of the SQUAMOSA PROMOTER BINDING PROTEIN-LIKE (SPL) transcriptional factors in Arabidopsis, SPL1 and SPL12, act redundantly in thermotolerance at the reproductive stage. The spl1-1 spl12-1 inflorescences displayed hypersensitivity to heat stress, whereas overexpression of SPL1 or SPL12 enhanced the thermotolerance in both Arabidopsis and tobacco. RNA sequencing revealed 1939 upregulated and 1479 downregulated genes in wild-type inflorescence upon heat stress, among which one-quarter (1,040) was misregulated in spl1-1 spl12-1, indicating that SPL1 and SPL12 contribute greatly to the heat-triggered transcriptional reprogramming in inflorescence. Notably, heat stress induced a large number of abscisic acid (ABA) responsive genes, of which similar to 39% were disturbed in heat induction in spl1-1 spl12-1 inflorescence. Preapplication of ABA and overexpression of SPL1 restored the inflorescence thermotolerance in spl1-1 spl12-1 and in the ABA biosynthesis mutant aba2-1, but not in the pyl sextuple mutant defective in ABA receptors PYR1/PYL1/PYL2/PYL4/PYL5/ PYL8. Thus, inflorescence thermotolerance conferred by SPL1 and SPL2 involves PYL-mediated ABA signaling. The molecular network consisting of SPL1 and SPL12 illustrated here shed new light on the mechanisms of plant thermotolerance at the reproductive stage.
关键词	plant thermotolerance inflorescence SPL transcription factor abscisic acid
收录类别	SCI ; CSCD
语种	英语
资助项目	State Key Basic Research Program of China[2013CB127000]
WOS研究方向	Biochemistry & Molecular Biology ; Plant Sciences
WOS类目	Biochemistry & Molecular Biology ; Plant Sciences
WOS记录号	WOS:000402400000010
CSCD记录号	CSCD:6020450
出版者	CELL PRESS
WOS关键词	HEAT-STRESS RESPONSE ; SBP-BOX GENE ; SIGNALING PATHWAYS ; SALICYLIC-ACID ; ABSCISIC-ACID ; DIFFERENTIAL EXPRESSION ; ANTIOXIDANT SYSTEMS ; LOW-TEMPERATURE ; FLOWERING TIME ; THALIANA
原始文献类型	Article
引用统计	被引频次：128[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/1392
专题	生命科学与技术学院生命科学与技术学院_特聘教授组_陈晓亚组生命科学与技术学院_博士生
通讯作者	Chen, Xiao-Ya
作者单位	1.Univ CAS, Chinese Acad Sci, Shanghai Inst Plant Physiol & Ecol, CAS Ctr Excellence Mol Plant Sci,Natl Key Lab Pla, Shanghai 200032, Peoples R China 2.ShanghaiTech Univ, Sch Life Sci & Technol, Shanghai 201210, Peoples R China 3.Shanghai Chenshan Bot Garden, Shanghai Key Lab Plant Funct Genom & Resources, Plant Sci Res Ctr, Shanghai 201602, Peoples R China
通讯作者单位	生命科学与技术学院
推荐引用方式 GB/T 7714	Chao, Lu-Men,Liu, Yao-Qian,Chen, Dian-Yang,et al. Arabidopsis Transcription Factors SPL1 and SPL12 Confer Plant Thermotolerance at Reproductive Stage[J]. MOLECULAR PLANT,2017,10(5):735-748.
APA	Chao, Lu-Men,Liu, Yao-Qian,Chen, Dian-Yang,Xue, Xue-Yi,Mao, Ying-Bo,&Chen, Xiao-Ya.(2017).Arabidopsis Transcription Factors SPL1 and SPL12 Confer Plant Thermotolerance at Reproductive Stage.MOLECULAR PLANT,10(5),735-748.
MLA	Chao, Lu-Men,et al."Arabidopsis Transcription Factors SPL1 and SPL12 Confer Plant Thermotolerance at Reproductive Stage".MOLECULAR PLANT 10.5(2017):735-748.