TaWRKY13-A Serves as a Mediator of Jasmonic Acid-Related Leaf Senescence by Modulating Jasmonic Acid Biosynthesis.
TaWRKY13-A Serves as a Mediator of Jasmonic Acid-Related Leaf Senescence by Modulating Jasmonic Acid Biosynthesis.
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TaWRKY13-A 通过调节茉莉酸生物合成作为茉莉酸相关叶片衰老的调节剂
DOI:
10.3389/fpls.2021.717233
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发表时间:
2021
影响因子:
5.6
通讯作者:
Zhou C
中科院分区:
文献类型:
--
作者:
Qiao H;Liu Y;Cheng L;Gu X;Yin P;Li K;Zhou S;Wang G;Zhou C
Leaf senescence is crucial for crop yield and quality. Transcriptional regulation is a key step for integrating various senescence-related signals into the nucleus. However, few regulators of senescence implicating transcriptional events have been functionally characterized in wheat. Based on our RNA-seq data, we identified a WRKY transcription factor, TaWRKY13-A, that predominately expresses at senescent stages. By using the virus-induced gene silencing (VIGS) method, we manifested impaired transcription of TaWRKY13-A leading to a delayed leaf senescence phenotype in wheat. Moreover, the overexpression (OE) of TaWRKY13-A accelerated the onset of leaf senescence under both natural growth condition and darkness in Brachypodium distachyon and Arabidopsis thaliana. Furthermore, by physiological and molecular investigations, we verified that TaWRKY13-A participates in the regulation of leaf senescence via jasmonic acid (JA) pathway. The expression of JA biosynthetic genes, including AtLOX6, was altered in TaWRKY13-A-overexpressing Arabidopsis. We also demonstrated that TaWRKY13-A can interact with the promoter of AtLOX6 and TaLOX6 by using the electrophoretic mobility shift assay (EMSA) and luciferase reporter system. Consistently, we detected a higher JA level in TaWRKY13-A-overexpressing lines than that in Col-0. Moreover, our data suggested that TaWRKY13-A is partially functional conserved with AtWRKY53 in age-dependent leaf senescence. Collectively, this study manifests TaWRKY13-A as a positive regulator of JA-related leaf senescence, which could be a new clue for molecular breeding in wheat.
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DOI:
10.1093/plcell/koab022
发表时间:
2021-05-31
期刊:
The Plant cell
影响因子:
--
作者:
Choi JY;Abdulkina LR;Yin J;Chastukhina IB;Lovell JT;Agabekian IA;Young PG;Razzaque S;Shippen DE;Juenger TE;Shakirov EV;Purugganan MD
通讯作者:
Purugganan MD
影响因子:
27.5
作者:
Chen, Ligang;Xiang, Shengyuan;Yu, Diqiu
通讯作者:
Yu, Diqiu
影响因子:
7.2
作者:
Clough, SJ;Bent, AF
通讯作者:
Bent, AF
影响因子:
5.9
作者:
Chen, Kunmei;Li, Hongwei;Li, Zhensheng
通讯作者:
Li, Zhensheng
影响因子:
7.4
作者:
He, YH;Fukushige, H;Gan, SS
通讯作者:
Gan, SS