Burning questions for a warming and changing world: 15 unknowns in plant abiotic stress

编号 040038102

推送时间 20230206

研究领域 森林培育 

年份 2022 

类型 期刊 

语种 英语

标题 Burning questions for a warming and changing world: 15 unknowns in plant abiotic stress

来源期刊 The Plant Cell

期 第381期

发表时间 20220826

关键词 warming world;  changing world;  abiotic stress;  cell and molecular biology;  water availability;  temperature;  salinity;  CO2;  environmental signals;  endogenous signaling;  genes;  phenotypes; 

摘要 We present unresolved questions in plant abiotic stress biology as posed by 15 research groups with expertise spanning eco-physiology to cell and molecular biology. Common themes of these questions include the need to better understand how plants detect water availability, temperature, salinity, and rising carbon dioxide (CO2) levels; how environmental signals interface with endogenous signaling and development (e.g. circadian clock and flowering time); and how this integrated signaling controls downstream responses (e.g. stomatal regulation, proline metabolism, and growth versus defense balance). The plasma membrane comes up frequently as a site of key signaling and transport events (e.g. mechanosensing and lipid-derived signaling, aquaporins). Adaptation to water extremes and rising CO2 affects hydraulic architecture and transpiration, as well as root and shoot growth and morphology, in ways not fully understood. Environmental adaptation involves tradeoffs that limit ecological distribution and crop resilience in the face of changing and increasingly unpredictable environments. Exploration of plant diversity within and among species can help us know which of these tradeoffs represent fundamental limits and which ones can be circumvented by bringing new trait combinations together. Better defining what constitutes beneficial stress resistance in different contexts and making connections between genes and phenotypes, and between laboratory and field observations, are overarching challenges.

服务人员 孙小满

服务院士 尹伟伦

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