果树响应低温胁迫的分子机制及抗寒性鉴定方法研究进展

Molecular Mechanism of Fruit Trees Response to Low Temperature Stress and Research Progress on Identification Methods for Cold Resistance

适宜的温度是果树生存的必要条件之一,它参与调控果树的整个生长发育过程,是限制果树生长、发育和分布的一个主要环境因子。果树在受到低温胁迫时,其本身会发生一系列的反应来应对逆境,这些反应互相联系形成一套完整的分子应答机制。抗寒性是果树重要的抗逆指标之一,是一系列反应体现在生理生化反应中的结果。该研究综述了果树响应低温胁迫的分子机制,以及国内外抗寒性鉴定方法的原理、优缺点,以期进一步揭示果树低温胁迫适应性的调控机制,为果树的育种和栽培提供科学的参考依据。

Temperature is a necessary growth condition to fruit trees implicated in the regulation of the entire process of growth and development and is a major limiting factor for fruit tree growth,development and distribution.Fruit trees under the cold stress can produce a series of reactions to cope with adversity by changing pattern of expression and transcription in cells,synthesizing new gene and protein.These reactions can form a set of complete molecular response mechanism.Cold resistance is one of the important stress tolerance indexes and is the result of physiological and biochemical reaction.This study reviewed the molecular mechanism of fruit trees response to low temperature stress and the principle,advantages and disadvantages of methods of evaluating cold resistance,in order to further reveal the regulatory mechanism of fruit trees in low temperature stress and provide scientific cultivation and theory basis.