A Cold Limit to Adaptation in the Sea.
A Cold Limit to Adaptation in the Sea.
复制标题
海洋适应的寒冷极限。
DOI：
10.1016/j.tree.2015.09.014
复制
发表时间：
2016
影响因子：
16.8
通讯作者：
L. Peck
中科院分区：
文献类型：
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作者：
L. Peck
温度通过改变反应速率来影响生物功能。生理速率通常每升高10°C增加一倍至三倍，1-4倍包括正常的生物功能。然而，在生活在0°C左右的极地海洋物种中，许多过程的速度都慢得超过了温暖水域物种的Arrhenius关系。生长，胚胎发育，特定动力作用（SDA）持续时间，以及适应温度变化的时间，在接近0°C的物种中比在10° C下慢5-12倍。然而，在耗氧量和SDA因子范围内，这种向较慢状态的冷海洋生理过渡是不存在的;在能力与有氧范围相关的过程中。我的观点是，涉及重大蛋白质修饰的过程受到影响，蛋白质合成或折叠问题导致速率减慢，超出预期的温度效应。
Temperature affects biological functions by altering reaction rates. Physiological rates usually double to treble for every 10°C rise, and 1–4 fold encompasses normal biological functions. However, in polar marine species inhabiting temperatures around 0°C many processes are slowed beyond the Arrhenius relationships for warmer water species. Growth, embryonic development, Specific dynamic action (SDA) duration, and time to acclimate to altered temperature, are all 5–12 fold slower in species living near 0°C than at 10°C. This cold marine physiological transition to slower states is absent, however, in oxygen consumption and SDA factorial scope; processes where capacity is related to aerobic scope. My opinion is that processes involving significant protein modification are impacted, and protein synthesis or folding problems cause the slowing of rates beyond expected temperature effects.