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Responses to Heat and Cold Stress

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Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.

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Updated: May 31, 2025

High-Throughput Assays of Critical Thermal Limits in Insects

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热和冷冲击降低了Trichogramma telengai幼虫的隔膜休息的发生率.

Natalia D Voinovich¹, Sergey Y Reznik¹

¹Zoological Institute, Russian Academy of Sciences, Universitetskaya 1, 199034 St. Petersburg, Russia.

|January 25, 2025

概括

热冲击显著降低了Trichogramma telengai中的昆虫隔离的发生率. 寒冷和热冲击对隔膜有不同的影响,不同的敏感度和机制影响昆虫的发展和生存.

科学领域:

昆虫学昆虫学是一门学科.
昆虫生理学昆虫生理学
压力生物学压力生物学

背景情况:

昆虫的隔离是生存在不利条件下至关重要的适应.
了解热应激对隔膜的影响对于昆虫管理至关重要.
热冲击对隔膜障碍发生率的影响仍未得到充分研究.

研究的目的:

为了研究寒冷和热冲击对*Trichogramma telengai*的可选幼虫冬季隔离的影响.
区分热冲击影响隔离器发生率的机制.
为优化*Trichogramma*大规模养和储存提供见解.

主要方法:

实验室实验使 *Trichogramma telengai* 幼虫遭受冷 (-10 °C) 和热 (43 °C) 冲击.
评估因热应激而导致的可选幼虫冬季隔离的发生率.
分析特定发育阶段对热冲击的敏感性.
评估冲击对注定与非注定个体的冲击的影响,以及差异性死亡率.

主要成果:

寒冷和热冲击 (≥20-30分钟) 在T. telengai*中显著降低了隔膜休息的发生率.
热冲击敏感性在中期幼虫中达到顶峰 (在15°C下5天),而冷冲击敏感性在晚期幼虫中达到顶峰 (在15°C下9-11天).

关键词:

三重图形 (Trichogramma) 是一个三重图形.寒冷的冲击给人带来了一些惊喜.隔膜休息时间热冲击是一种热冲击.压力就是压力,压力就是压力.温度的温度的温度的温度的温度

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热冲击主要改变了注定进入隔离期的个体的比例,而冷冲击主要通过差异性死亡率来影响,有利于非隔离期的个体.

结论:

热冲击对昆虫间隙发生率产生了显著的,但却截然不同的影响.
热应激的时间和特定的冲击类型极大地决定了对隔膜断裂的结果.
这些发现增强了对昆虫应激反应的理解,并为生物控制程序的实际应用提供了信息.