海洋管的变形是由细菌菌体尾状结构的阵列诱导的
Nicholas J Shikuma1, Martin Pilhofer, Gregor L Weiss
1Division of Biology, California Institute of Technology, Pasadena, CA 91125, USA.
Science (New York, N.Y.)
|January 11, 2014
概括
海洋管幼虫的变形是由细菌菌体的尾状结构触发的. 这一发现揭示了微生物与动物之间的新奇相互作用,解释了生物膜如何影响海洋无脊椎动物的发展.
科学领域:
- 海洋生物学 海洋生物学
- 微生物学 微生物学
- 发展生物学 发展生物学
背景情况:
- 地海洋动物种群依赖于幼虫的定居和变形.
- 幼虫的定居通常是通过来自表面细菌的线索来调解的.
- 管虫Hydroides elegans是一种生物污染剂,需要细菌接触才能进行变形.
研究的目的:
- 阐明细菌在Hydroides elegans幼虫中引发转型的机制.
- 为了确定参与这种微生物介导的发育过渡的特定细菌结构.
主要方法:
- 研究了Pseudoalteromonas luteoviolacea和Hydroides elegans幼虫之间的相互作用.
- 使用显微镜描述了P. luteoviolacea产生的结构.
- 观察了这些结构对幼虫变形的影响.
主要成果:
- 类虫 (Pseudoalteromonas luteoviolacea) 产生了一系列的菌体尾状结构.
- 这些阵列由具有基板的收缩结构组成,由纤维连接在一起,形成六角网.
- 这些细菌阵列被证明可以触发Hydroides elegans幼虫的变形.
结论:
- 由Pseudoalteromonas luteoviolacea产生的虫尾状结构是Hydroides elegans变形的关键诱导因素.
- 这代表了一种新的细菌-动物相互作用形式.
- 了解这些结构可以了解海洋生物膜是如何影响动物发育的.
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