Insects and low temperatures: from molecular biology to distributions and abundance
Insects and low temperatures: from molecular biology to distributions and abundance
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DOI：
10.1098/rstb.2002.1074
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发表时间：
2002-07-29
影响因子：
6.3
通讯作者：
Bale, JS
中科院分区：
文献类型：
--
作者：
Bale, JS
昆虫是地球上最多样化的动物群，从热带到两极，不同的物种占据了一系列陆地和水生栖息地。生活在极低温环境中的物种必须忍受或避免冰冻才能生存。虽然目前对参与季节性适应和冬季抗寒性过程的主要冷冻保护剂（冰核剂、多元醇和抗冻蛋白）的合成、生物化学和功能了解很多，但对这些化合物的结构生物学研究却比较有限。最近发现的快速冷硬化、冰界面干燥和影响死亡率和流动性的临界热阈值的每日重置都强调了温度作为最重要的非生物因素的作用，通过生理过程决定生态结果。这些关系可以在关键领域看到，例如物种对气候变暖的反应、虫害爆发的预测系统以及外来物种在新环境中建立的潜力。
Insects are the most diverse fauna on earth, with different species occupying a range of terrestrial and aquatic habitats from the tropics to the poles. Species inhabiting extreme low-temperature environments must either tolerate or avoid freezing to survive. While much is now known about the synthesis, biochemistry and function of the main groups of cryoprotectants involved in the seasonal processes of acclimatization and winter cold hardiness (ice-nucleating agents, polyols and antifreeze proteins), studies on the structural biology of these compounds have been more limited.The recent discovery of rapid cold-hardening, ice-interface desiccation and the daily resetting of critical thermal thresholds affecting mortality and mobility have emphasized the role of temperature as the most important abiotic factor, acting through physiological processes to determine ecological outcomes. These relationships are seen in key areas such as species responses to climate warming, forecasting systems for pest outbreaks and the establishment potential of alien species in new environments.