关键词: Escape response Heat shock response Pressure experiment Thermal stress Thermoregulation Thermotolerance hsp70

Mesh : Animals Body Temperature Regulation / physiology Decapoda / metabolism HSP70 Heat-Shock Proteins / metabolism Hydrothermal Vents Thermotolerance / physiology

来  源:   DOI:10.1007/s12192-019-01003-0   PDF(Sci-hub)   PDF(Pubmed)

Abstract:
Assessing species thermal tolerance requires identification of their thermal strategies and evaluation of their ability to cope with temperature fluctuations. The mobilization of the molecular heat stress response (HSR), which is a proxy for the thermal tolerance, would be part of the strategy of species colonizing highly variable thermal environments. We here investigate multiple parameters of the HSR in the deep-sea vent shrimp Rimicaris exoculata that colonizes such environments. The set points of the HSR induction, compared to those of the coastal species Palaemonetes varians, clearly reflect a high thermotolerance in this species, while the HSR is proved to be rarely mobilized in the R. exoculata natural populations. Finally, the compilation of multiple parameters such as the upper thermal limit and several thresholds of the HSR, as well as thermal behavior observations, allows us to provide a more accurate picture of the combination and complementarity of strategies that can account for the overall thermal tolerance of the species.
摘要:
评估物种的耐热性需要确定其热策略并评估其应对温度波动的能力。分子热应激反应(HSR)的动员,这是耐热性的代表,将是物种在高度可变的热环境中定居的策略的一部分。我们在这里研究了定居在这种环境中的深海喷口虾Rimicarisexoculata中HSR的多个参数。高铁感应的设定点,与沿海物种Palaemonetesvarians相比,清楚地反映了这个物种的高耐热性,而高铁被证明很少在外植体自然种群中动员。最后,汇编多个参数,如热上限和HSR的几个阈值,以及热行为观察,使我们能够更准确地了解策略的组合和互补性,这些策略可以解释物种的整体耐热性。
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