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Thermodynamics of cercarial development and emergence in trematodes

机译：吸虫在小脑中发育和发育的热力学

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摘要

Temperature is an important factor influencing the biology of ectothermic organisms and is intrinsically linked to climate change. Trematodes are potentially susceptible to temperature changes and in order to develop predictive frameworks of their responses to climate change large-scale analyses are needed. The present study, using the Q_(10) value, analyses experimental data from the scientific literature on the effects of temperature on cercarial development and emergence across a wide range of temperature in low (<=35°) and mid-latitude (36-60°) species. Temperature appears to have no significant effect on the rate of development of cercariae within molluscan hosts. Data on cercarial emergence, corrected to incorporate the minimum emergence temperature threshold (METT) and acclimation status, was found to be largely unaffected by temperature over optimum ranges of approx=20°C (15-25 °C) for mid-latitude species and approx= 25 °C (20-30 °C) for low-latitude species. In addition, a decline in emergence rates was shown at higher temperatures. These results are contrary to a previous study on the meta-analysis of cercarial emergence. Some evidence of strain-specific differences and thermostability over a wide temperature range for both cercarial development and emergence was apparent. The significance of these results in furthering our understanding of cercarial biology under natural conditions is discussed.
机译：温度是影响放热生物体生物学的重要因素，并且与气候变化具有内在联系。吸虫可能易受温度变化的影响，为了建立其对气候变化反应的预测框架，需要进行大规模分析。本研究使用Q_（10）值，分析了科学文献中的温度对低纬度（<= 35°）和中纬度（36- 60°）物种。温度对软体动物宿主中尾c的生长速率似乎没有显着影响。经校正以纳入最低出现温度阈值（METT）和适应状态的子宫颈出现数据，在很大程度上不受中纬度物种的约20°C（15-25°C）最佳范围内温度的影响。对于低纬度物种，大约= 25°C（20-30°C）。另外，在较高温度下出现率下降。这些结果与先前关于子代出现的荟萃分析的研究相反。某些证据表明，在特定温度下，小脑发育和出现的菌株特异性差异和热稳定性均很明显。讨论了这些结果对增进我们对自然条件下子宫颈生物学的理解的意义。

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