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Sicyonia ingentis的精子经历了一种双相容量,伴随着形态变化

Athula H Wikramanayake¹, Kevin R Uhlinger¹, Fred J Griffin¹

¹University of California-Bodega Marine Laboratory, Bodega Bay, CA 94923.

Development, growth & differentiation

|June 7, 2023

概括

雌性 (Sicyonia ingentis) 的精子在受精后经历了两相体反应 (AR). 精子需要在受精后的大量时间来发展形态变化,以便成功完成AR.

科学领域:

海洋生物学海洋生物学
生殖生物学生殖生物学
甲动物生理学甲动物生理学

背景情况:

在许多海洋无脊椎动物中,体反应 (AR) 对于受精至关重要.
精子电容,一个生理成熟的过程,对于一些物种的AR是必要的.
在Sicyonia ingentis中对AR的特定容量要求尚未完全理解.

研究的目的:

为了研究Sicyonia ingentis精子中的电容化过程.
为了确定在授精后发展宏体反应 (AR) 能力的时间进程.
为了将电容化过程中的形态变化与AR成功相关联.

主要方法:

精子从Sicyonia ingentis雌性种子容器中收集,在种植后的不同时间.
精子与卵水 (EW) 进行化,以诱导体反应 (AR).
用显微镜检查精子形态.

主要成果:

来自男性的精子没有经历RE与EW,这表明需要进行种植后电容.
精子在受精后25个小时左右成为了对体外细胞形成的有能力者.
在灌输后大约145小时,获得了对宏体线索形成的能力.
在男性和女性的精子之间观察到显著的形态差异,其中一些变化与AR成功有关.

结论:

在受精后,Sicyonia ingentis的精子需要长时间的电容期才能达到完全的宏粒反应 (AR) 能力.
在这种物种中,在电容化过程中的形态变化对于成功完成AR至关重要.
这些发现提供了关于甲类生殖生理学和受精机制的见解.

关键词:

(可以吃.亚克罗斯组反应的反应形态变化形态变化精子容量化能力精子容量化能力

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