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温度和微生物环境改变了幼虫两动物的大脑形态

Kyle J Emerson¹, Samantha S Fontaine², Kevin D Kohl²

¹Department of Biological Sciences, Duquesne University, Pittsburgh, PA 15282, USA.

The Journal of experimental biology

|May 26, 2023

概括

环境温度和肠道微生物显著影响两动物的神经发育. 更高的温度和减少的微生物暴露改变了头大脑的大小和形状,这表明两动物的微生物群-肠-大脑轴.

科学领域:

生态生态学生态生态学
神经科学是一个神经科学.
微生物学微生物学

背景情况:

全球气候变化对野生动物生理构成风险,特别是对温度变化敏感的两动物.
温度上升可能会损害两动物的神经发育,可能由肠道微生物群通过微生物群-肠道-大脑 (MGB) 轴介导.
在非哺乳动物野生动物中,MGB轴的理解很差,因此需要对多种模型系统进行研究.

研究的目的:

为了研究环境温度和微生物暴露如何影响绿色青的神经发育.
测试温度和微生物环境通过MGB轴塑造头大脑发育的假设.
为两动物的MGB轴提供证据.

主要方法:

绿色青头 (Lithobates clamitans) 在自然或自池水中在三种温度 (14,22,28°C) 上养.
通过测量相对大脑质量和关键大脑结构的形态来评估神经发育.
与大脑形态学相关的肠道微生物多样性和细菌丰富性被分析.

主要成果:

较高的温度导致相对大脑质量增加和光学纹路尺寸更大.
在自池水的发展导致了更宽,更长的光学纹路.
大脑形态变异与肠道微生物多样性和特定细菌种群相关.

结论:

环境温度和微生物群落都是影响两动物大脑发育的关键因素.
这些发现表明两动物中微生物群-肠-大脑轴的存在和重要性.
这项研究强调两动物神经发育对气候变化和微生物变化的脆弱性.

关键词:

青的青,就是青.这是一个很棒的体验,Gut Gut Gut Gut.微生物组是一个微生物组.微生物群中的微生物群.微生物肠大脑轴神经发育神经发育泰德波尔 (Tadpole) 是一个子.

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