蓝色的神经内分泌轴的温度驱动的变化Callinectes sapidus在变周期期间
Daniela Dantas David1, Giovanna Zanetti1, José Araújo Souto-Neto1
1Department of Physiology, Institute of Biosciences, University of São Paulo, São Paulo, Brazil.
General and comparative endocrinology
|August 9, 2024
概括
温度显著影响甲动物的变,特别是在变前的阶段. 较低的温度会扰乱内分泌调节,影响蓝Callinectes sapidus中的生态类固醇和热冲击蛋白 (HSP).
科学领域:
- 甲类内分泌学 甲类内分泌学
- 分子生物学分子生物学
- 环境生理学环境生理学
背景情况:
- 环境温度影响甲动物的变周期.
- 连接温度和变的精确生理机制在很大程度上是未知的.
- 了解这些机制对于水产养殖和生态研究至关重要.
研究的目的:
- 在不同的热条件下研究Callinectes sapidus变周期的调节机制.
- 评估温度对生态类固醇,脂质,热冲击蛋白 (HSP) 和关键变基因的影响.
- 为了区分intermolt和premolt阶段之间的反应.
主要方法:
- 评估了19°C,24°C和29°C的血淋巴生态和脂质度.
- 测量了不同组织中热冲击蛋白 (HSP) 和变基因的表达.
- 在intermolt和前moltCallinectes sapidus阶段的比较反应.
主要成果:
- 预先切割的动物对较低的温度 (19°C) 的敏感性比间隔切割的动物更强.
- 在19°C的预产中,类固醇的含量下降,这可能被增加的肝胰腺受体 (CasEcR) 表达力所补偿.
- 肝中热冲击蛋白表达是由温度和变阶段之间的相互作用引起的.
结论:
- 温度在内分泌水平上有效调节甲类的变.
- 低于最佳的温度,特别是在前阶段,会引起显著的生理反应.
- 在这种物种中,制激素的表达似乎是构成性的,不受温度或变阶段的影响.
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