在肺部的精子生殖,欧哈德拉·希科尼斯 1. 一个跨越性的形成
1Biological Institute, Ehime University, Matsuyama 790, Japan.
Development, growth & differentiation
|June 7, 2023
概括
尤哈德拉·希科尼斯 (Euhadra Hickonis) 的体从戈尔吉活动中发展,形成囊泡和基底成分. 这一过程涉及核膜相互作用和精子成熟期间的物质添加.
科学领域:
- 生殖生物学 生殖生物学
- 细胞生物学 细胞生物学
- 精子生成研究 精子生成研究
背景情况:
- 体分化对于受精至关重要.
- 在许多物种中,体组件的起源和沉积尚未完全理解.
研究的目的:
- 阐明了牛Euhadra hickonis中体分化的详细过程.
- 为了确定形成宏体的材料的起源和时间添加.
主要方法:
- 传输电子显微镜被用来观察体的分化.
- 在不同发育阶段对精子类动物进行详细的超结构分析.
主要成果:
- 体囊泡起源于早期的戈尔吉活动.
- 一个基底成分稍后被添加到囊泡中,并将核外中的材料纳入.
- 核塑造和戈尔吉复合物迁移是这个过程中的关键事件.
结论:
- 在Euhadra hickonis中,体的分化涉及从戈尔吉和核外的物质的连续添加.
- 这项研究提供了一个详细的超结构地图,说明了这种胃类动物中体形成的过程.
相关概念视频
Spermatogenesis
102.7K
Spermatogenesis is the process by which haploid sperm cells are produced in the male testes. It starts with stem cells located close to the outer rim of seminiferous tubules. These spermatogonial stem cells divide asymmetrically to give rise to additional stem cells (meaning that these structures “self-renew”), as well as sperm progenitors, called spermatocytes. Importantly, this method of asymmetric mitotic division maintains a population of spermatogonial stem cells in the male...
102.7K
Fertilization
71.2K
During fertilization, an egg and sperm cell fuse to create a new diploid structure. In humans, the process occurs once the egg has been released from the ovary, and travels into the fallopian tubes. The process requires several key steps: 1) sperm present in the genital tract must locate the egg; 2) once there, sperm need to release enzymes to help them burrow through the protective zona pellucida of the egg; and 3) the membranes of a single sperm cell and egg must fuse, with the sperm...
71.2K


