PXD003746 - Reciprocal regulation of the TOR kinase and ABA receptor balances plant growth and stress response

Dataset Information

Reciprocal regulation of the TOR kinase and ABA receptor balances plant growth and stress response

ABSTRACT: We found that TOR kinase regulates the plant environmental stress responses through phosphorylation at a conserved serine residue of Abscisic acid receptor PYR1/PYLs/RCARs. The phosphorylation inhibits the function of PYLs and prevents the binding of PYLs to abscisic acid and its downstream substrates of PP2C, which blocks the ABA and stress signaling. Our results suggest that plant utilizes this mechanism as a hub to regulate the ABA-mediate stress responses and growth recovery

INSTRUMENT(S): LTQ Orbitrap Velos

ORGANISM(S): Arabidopsis Thaliana (mouse-ear Cress)

TISSUE(S): Whole Plant

SUBMITTER: Chuan-Chih Hsu

LAB HEAD: Jian-Kang Zhu

PROVIDER: PXD003746 | Pride | 2017-12-01

REPOSITORIES: Pride

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Publications

Reciprocal Regulation of the TOR Kinase and ABA Receptor Balances Plant Growth and Stress Response.

Wang Pengcheng P Zhao Yang Y Li Zhongpeng Z Hsu Chuan-Chih CC Liu Xue X Fu Liwen L Hou Yueh-Ju YJ Du Yanyan Y Xie Shaojun S Zhang Chunguang C Gao Jinghui J Cao Minjie M Huang Xiaosan X Zhu Yingfang Y Tang Kai K Wang Xingang X Tao W Andy WA Xiong Yan Y Zhu Jian-Kang JK

Molecular cell 20171228 1

As sessile organisms, plants must adapt to variations in the environment. Environmental stress triggers various responses, including growth inhibition, mediated by the plant hormone abscisic acid (ABA). The mechanisms that integrate stress responses with growth are poorly understood. Here, we discovered that the Target of Rapamycin (TOR) kinase phosphorylates PYL ABA receptors at a conserved serine residue to prevent activation of the stress response in unstressed plants. This phosphorylation di ...[more]

PMID: 29290610

Dataset Information

Reciprocal regulation of the TOR kinase and ABA receptor balances plant growth and stress response

Publications

Reciprocal Regulation of the TOR Kinase and ABA Receptor Balances Plant Growth and Stress Response.

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