不寻常的细胞表面,皮利和Thermoplasmatales archaea的骨干细胞
Matthew C Gaines1,2, Michail N Isupov2,3, Mathew McLaren1,2
1Living Systems Institute, University of Exeter, EX4 4QD, Exeter, United Kingdom.
The ISME journal
|August 13, 2025
概括
这项研究发现,缺乏准晶体S层的古细胞仍然可以形成功能性古细胞和 pili. 这挑战了以前关于S层对于热质体细胞推进的必要性的假设.
科学领域:
- 微生物学 微生物学
- 考古生物学的生物学
- 细胞结构的细胞结构.
背景情况:
- 热质素古生物表现出独特的细胞可塑性,并且缺乏准晶体的S层.
- 传统上,S层被认为对古细胞组装和功能至关重要.
- 这引发了关于S层缺乏古物质中的推进机制的问题.
研究的目的:
- 为了研究热塑性动物中的古和 pili 形成.
- 为了确定S层是否对于这些archaea中的功能性archaella和pili是必要的.
主要方法:
- 低温电子显微镜 (cryoEM) 用于研究昆尼库利等离子体 (Cuniculiplasma divulgatum) 和氧化等离子体 (Oxyplasma meridianum).
- 对 pili 和 archaella 结构和组合的分析.
主要成果:
- 发现C. divulgatum和O. meridianum都能产生功能性的archaella和 pili.
- C. divulgatum 拥有带有终端子的 pili,通过独特的机器组装在一起.
- O. meridianum形成了宽的,有刺刺的外观的糖化化骨干.
- 在这些物种中,Archaella可能有助于细胞推进.
结论:
- 在Thermoplasmatales中产生功能性archaella和pili并不需要正规的S层.
- 这一发现扩大了我们对古生物运动性和细胞表面结构的理解.
关键词:
考古物 (Archaea) 是一种古老的物种.热塑性质的动物它们是Archaella和Archaella.冰冷化EMEM可以使用.冰冷化ETET是什么意思纤维丝 纤维丝 纤维丝 纤维丝在这里,我们可以看到PiliPiliPili.更多相关视频
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