Target of Rapamycin Signaling in Plant Stress Responses

编号 040022704

推送时间 20200224

研究领域 森林培育 

年份 2020 

类型 期刊 

语种 英语

标题 Target of Rapamycin Signaling in Plant Stress Responses

来源期刊 Plant Physiology

期 第227期

发表时间 20200116

关键词 Plant Stress;  TOR;  abiotic stresses;  nutrient deficiencies; 

摘要 Target of Rapamycin (TOR) is an atypical serine/threonine protein kinase that is evolutionally conserved among yeasts, plants, and mammals. In plants, TOR signaling functions as a central hub to integrate different kinds of nutrient, energy, hormone, and environmental signals. TOR thereby orchestrates every stage of plant life, from embryogenesis, meristem activation, root and leaf growth to flowering, senescence, and life span determination. Besides its essential role in the control of plant growth and development, recent research has also shed light on its multifaceted roles in plant environmental stress responses. Here, we review recent findings on the involvement of TOR signaling in plant adaptation to nutrient deficiency and various abiotic stresses. We also discuss the mechanisms underlying how plants cope with such unfavorable conditions via TOR-ABA crosstalk and TOR-mediated autophagy, both of which play crucial roles in plant stress responses. Until now, little was known about the upstream regulators and downstream effectors of TOR in plant stress responses. We propose that the SnRKs-TOR axis plays a role in sensing various stress signals, and predict the key downstream effectors based on recent high-throughput proteomic analyses.

服务人员 孙小满

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