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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Calcium as environmental sensor in plants [Review]
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Calcium as environmental sensor in plants [Review]

机译：钙作为植物中的环境传感器[综述]

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Plants are constantly exposed to a changing and often unfavourable environment which has led to the evolution of adaptive strategies that permit plant cells to sense environmental stimuli and to activate responses that allow avoidance or survival of environmental stresses. A central theme in the current research in stress biology has been the elucidation of signalling pathways and their components controlling the stress-response regulons. Efforts have been directed by several laboratories across the globe to understand how environmental cues are sensed and transduced to the level of gene expression. A number of interacting signal pathways appear to control the activation of stress-responsive genes. Sensing environment by plants must involve a highly precise, specific and finely-regulated mechanism in the form of 'language'. Over the years, search for such a 'language' has narrowed down to a divalent cation, calcium (Ca2+), that acts as a ubiquitous messenger in the responses of a cell to the environment. With the advent of some novel techniques, the measurement of intracellular Ca2+ concentration has become easy. This has led to unequivocal evidences for involvement of Ca2+ in several plant responses to the environment. Since development of crops tolerant to abiotic stresses is an important aspect in agricultural research, understanding the involvement of Ca2+, in facing these challenges becomes imperative and worthwhile. Hence, the present review focuses on some recent aspects of Ca2+ functioning in relation to some selective abitoic factors.
机译：植物不断地暴露于不断变化且通常不利的环境中，这导致适应性策略的发展，该策略允许植物细胞感知环境刺激并激活能够避免或维持环境胁迫的响应。当前应激生物学研究的中心主题是阐明信号通路及其控制应激反应调节因子的成分。全球多个实验室已经做出了努力，以了解如何感测环境暗示并将其转导至基因表达水平。许多相互作用的信号途径似乎可以控制应激反应基因的激活。植物的传感环境必须以“语言”的形式涉及高度精确，特定且精细调节的机制。多年来，对这种“语言”的搜索已缩小为二价阳离子钙（Ca2 +），它在细胞对环境的反应中作为普遍的信使。随着一些新技术的出现，细胞内Ca2 +浓度的测量变得很容易。这导致了明确的证据表明Ca2 +参与了多种植物对环境的反应。由于抗非生物胁迫的农作物的开发是农业研究的重要方面，因此了解Ca2 +的参与以应对这些挑战变得势在必行且值得。因此，本综述着重于与某些选择性雄性因子相关的Ca2 +功能的一些最新方面。

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