Arabidopsis WRKY Transcription Factors WRKY12 and WRKY13 Oppositely Regulate Flowering under Short-Day Conditions

CORC > 西双版纳热带植物园 > 中国科学院西双版纳热带植物园 > 植物分子生物学研究组

	Arabidopsis WRKY Transcription Factors WRKY12 and WRKY13 Oppositely Regulate Flowering under Short-Day Conditions
	Yu, Diqiu
刊名	MOLECULAR PLANT
	2017
卷号	9 期号:11 页码:1492-1503
关键词	flowering WRKY transcription factor DELLA proteins gibberellin FUL
中文摘要	In plants, photoperiod is an important cue for determining flowering. The floral transition in Arabidopsis thaliana is earlier under long-day (LD) than under short-day (SD) conditions. Flowering of Arabidopsis plants under SD conditions is mainly regulated by the plant hormone gibberellin (GA). Here, we report two WRKY transcription factors function oppositely in controlling flowering time under SD conditions. Phenotypic analysis showed that disruption of WRKY12 caused a delay in flowering, while loss of WRKY13 function promoted flowering. WRKY12 and WRKY13 displayed negatively correlated expression profiles and function successively to regulate flowering. Molecular and genetic analyses demonstrated that FRUITFULL (FUL) is a direct downstream target gene of WRKY12 and WRKY13. Interestingly, we found that DELLA proteins GIBBERELLIN INSENSITIVE (GAI) and RGA-LIKE1 (RGL1) interacted with WRKY12 and WRKY13, and their interactions interfered with the transcriptional activity of the WRKY12 and WRKY13. Further studies suggested thatWRKY12 and WRKY13 partly mediated the effect of GA3 on controlling flowering time. Taken together, our results indicate thatWRKY12 and WRKY13 oppositely modulate flowering time under SD conditions, which at least partially involves the action of GA.
收录类别	SCI
语种	英语
公开日期	2017-03-10
内容类型	期刊论文
源URL	[http://ir.xtbg.org.cn/handle/353005/10320]
专题	西双版纳热带植物园_植物分子生物学研究组
推荐引用方式 GB/T 7714	Yu, Diqiu. Arabidopsis WRKY Transcription Factors WRKY12 and WRKY13 Oppositely Regulate Flowering under Short-Day Conditions[J]. MOLECULAR PLANT,2017,9(11):1492-1503.
APA	Yu, Diqiu.(2017).Arabidopsis WRKY Transcription Factors WRKY12 and WRKY13 Oppositely Regulate Flowering under Short-Day Conditions.MOLECULAR PLANT,9(11),1492-1503.
MLA	Yu, Diqiu."Arabidopsis WRKY Transcription Factors WRKY12 and WRKY13 Oppositely Regulate Flowering under Short-Day Conditions".MOLECULAR PLANT 9.11(2017):1492-1503.