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Microbiology

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Microbial Ecology

Microbial Cooperation in Soil and Hosts

Description

Microbial cooperation describes helpful interactions between different species. In these partnerships, microbes work together for one or mutual benefit. These interactions can shape ecosystems and evolution. They also play major roles in symbiosis and disease.

One clear example involves the Gram-...

Transcript

合作是一种物种间的相互作用,其中所有参与的生物体相较于不发生相互作用时均能受益,但彼此之间并不存在强制性的依赖关系。

例如,幼年的寄生性线虫 Steinernema carpocapsae 在其肠道内携带 Xenorhabdus nematophila 细菌。

感染昆虫宿主后,幼虫期线虫将细菌排泄到昆虫的体腔内。

在该环境中,细菌大量增殖并释放毒素,可在24至48小时内杀死宿主,同时释放抗菌物质,保护虫尸免受其他微生物和蚂蚁的侵袭。

细菌信号会触发线虫成熟,使成虫能够交配并在尸体内部产卵。

Fusarium 这样的真菌在土壤中形成菌丝网络,有助于如 Pseudomonas p...

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