Department of Crop and Soil Environmental Sciences, Virginia Tech, Blacksburg, VA 24061, USA.
Curr Opin Plant Biol. 2013 May;16(2):196-204. doi: 10.1016/j.pbi.2013.02.003. Epub 2013 Feb 28.
Both high and low extremes in precipitation increasingly impact agricultural productivity and sustainability as a consequence of global climate change. Elucidation of the genetic basis underlying stress tolerance facilitates development of new rice varieties with enhanced tolerance. Submergence tolerance is conferred by a single master regulator that orchestrates various acclimation responses, whereas drought tolerance is regulated by a number of small-effect loci that are largely influenced by genetic background and environment. Detailed molecular studies have uncovered the functional importance of genes and signaling components which coordinate various morphological and physiological responses to submergence and drought, providing new insight into understanding the complex regulatory mechanisms of stress tolerance in rice.
由于全球气候变化，降水的高低极端都对农业生产力和可持续性产生了影响。阐明耐受胁迫的遗传基础有助于开发具有增强耐受性的新型水稻品种。耐淹水由单个主调控因子赋予，该因子协调各种适应反应，而耐旱性则由许多小效应位点调控，这些位点主要受遗传背景和环境的影响。详细的分子研究揭示了基因和信号成分的功能重要性，这些基因和信号成分协调了水稻对淹水和干旱的各种形态和生理反应，为理解水稻胁迫耐受的复杂调控机制提供了新的见解。
