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ABA-mediated modulation of elevated CO2 on stomatal response to drought.
Current Opinion in Plant Biology ( IF 9.5 ) Pub Date : 2020-01-11 , DOI: 10.1016/j.pbi.2019.12.002
Shenglan Li 1 , Xiangnan Li 2 , Zhenhua Wei 3 , Fulai Liu 4
Affiliation  

Elevated atmospheric CO2 concentration (e[CO2]) and soil water deficits have substantial effect on stomatal morphology and movement that regulate plant water relations and plant growth. e[CO2] could alleviate the impact of drought stress, thus contributing to crop yield. Xylem-borne abscisic acid (ABA) plays a crucial role in regulating stomatal aperture serving as first line of defence against drought; whereas e[CO2] may disrupt this fundamental drought adaptation mechanism by delaying the stomatal response to soil drying. We review the state-of-the-art knowledge on stomatal response to drought stress at e[CO2] and discuss the role of ABA in mediating these responses.

中文翻译:

ABA介导的CO2升高对干旱对气孔反应的调节。

大气中二氧化碳浓度(e [CO2])的升高和土壤缺水对调节植物水关系和植物生长的气孔形态和运动有很大影响。e [CO2]可以减轻干旱胁迫的影响,从而有助于提高作物产量。木质部释放的脱落酸(ABA)在调节气孔孔径中起着至关重要的作用,是防止干旱的第一道防线。而e [CO2]可能会通过延迟气孔对土壤干燥的响应而破坏这种基本的干旱适应机制。我们回顾了在e [CO2]上对干旱胁迫的气孔响应的最新知识,并讨论了ABA在介导这些响应中的作用。
更新日期:2020-01-11
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