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相关概念视频

Responses to Heat and Cold Stress02:45

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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The insulin and ecdysone pathways as regulators of diapause termination: transcriptional and protein insights from Pieris napi.

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一个定量模型的温度依赖的隙进展.

Loke von Schmalensee1,2, Philip Süess1, Kevin T Roberts1,3

  • 1Department of Zoology, Stockholm University, Stockholm 10691, Sweden.

Proceedings of the National Academy of Sciences of the United States of America
|August 28, 2024
PubMed
概括

像Pieris napi这样的昆虫的冬季隔膜是一个温度依赖的过程. 暴露于寒冷会终止隔膜,使春天的发育能够同步,并防止过早出现.

关键词:
隔膜休息时间隔音间歇终止终止生态预测 生态预测昆虫是一种昆虫.热性能曲线的热性能曲线

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科学领域:

  • 昆虫生理学 昆虫生理学
  • 发育生物学是发展生物学.
  • 生态生态学 生态生态学

背景情况:

  • 昆虫的冬季停滞对于生存至关重要,防止它们在春天之前发育.
  • 对断终端的温度依赖性的定量理解是有限的.
  • 隔离症的表型通常是神秘的,阻碍了研究.

研究的目的:

  • 开发一种方法来定量评估温度依赖的隔膜终止.
  • 描述Pieris napi. 中的隔膜终止的热反应规范.
  • 为了研究隔离期终止和隔离期后发育率之间的关系.

主要方法:

  • 蝶 (Pieris napi) 被从各种寒冷条件转移到20°C.
  • 记录了屏幕停顿终止时间,以确定温度依赖的速率.
  • 在一系列温度范围内测量了后隔离间发展率.

主要成果:

  • 皮埃里斯纳皮的Diapause终止遵循一个温度依赖的速率过程,在低温时达到峰值.
  • 建立了一个热反应规范,预测在可变温度下对断路终止.
  • 隔离后的发展呈现出明显的热性能曲线,最好在31°C左右.

结论:

  • 隔膜断裂终止和隔膜断裂后的发展是不同的,取决于温度的过程.
  • 这些过程的相互作用确保了Pieris napi. 的同步春季化.
  • 这种定量模型增强了对隔离期作为适应生存和同步的理解.