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甲状腺激素可逆地抑制ophiuroid幼虫的变形发育

Elias Taylor¹, Jonathan D Allen², Andreas Heyland¹

¹University of Guelph, Integrative Biology, 50 Stone Rd East, Guelph, ON, Canada, N1G 2W1.

The Journal of experimental biology

|January 6, 2025

概括

甲状腺激素 (THs) 令人惊的是抑制了易碎星的变形. 饥饿加速发育,这表明THs在食物丰富时延迟转化,突出了内分泌系统在海洋无脊椎动物发育中的作用.

科学领域:

内分泌学在内分泌学.
海洋生物学海洋生物学
发育生物学发展生物学

背景情况:

已知甲状腺激素 (THs) 调节了带动物的变形.
有证据表明,THs也会影响诸如皮动物等无脊椎动物的变形.
缺乏关于THs在ophiuroid (脆星) 变态发展中的作用的信息.

研究的目的:

调查甲状腺激素在脆脆的明星Ophiopholis aculeata的变形发展中的作用.
确定THs和TH合成抑制对脆性恒星转化和沉积的影响.

主要方法:

对Ophiopholis aculeata幼虫暴露于甲状腺激素 (T4) 和硫尿素 (一种TH合成抑制剂).
观察发育时间,转化和定居的过程.
对饥饿条件的实验操纵,以评估其与TH信号的相互作用.

主要成果:

发现甲状腺激素 (T4) 可逆地抑制了O. aculeata的变形发育和定居.
使用尿素抑制TH合成加速了变形发育.
饥饿加速了幼虫的形态发生和定居,并阻断了氨酸的作用,这表明食物可用性和TH功能之间存在联系.

结论:

甲状腺激素信号传递在甲状腺甲状腺变形发育中起着功能性作用.
THs可能会延迟O. aculeata的转化,可能是对高食物可用性的反应.
这些发现强调了内分泌信号在调节多种无脊椎动物种群的变形过程中的保留和中心作用.

关键词:

这种植物是Ophiopholis aculeata.皮是指皮的部分.内分泌系统内分泌系统幼虫幼虫幼虫是一种变形的转化过程甲状腺素甲状腺素

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