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Biology

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Microbiology

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Microbial Ecology

How Microbes Hunt and Defend

Description

Microbial predation is a form of interaction in which one microorganism kills and eats another to gain nutrients and energy. It includes both bacterial predators and protozoan predators. This process helps shape microbial communities and affects how nutrients move through the environment.

Some ba...

Transcript

微生物捕食是指一种微生物通过杀死并消耗另一种微生物来获取营养的过程。

根据其捕食策略,某些捕食性细菌被描述为表生型或内生型。

Vampirococcus这样的表生捕食者会附着在猎物的外膜上,分泌裂解酶,并吸收释放出的细胞质物质。

内生性捕食者(如Bdellovibrio)通过附着在猎物细胞上并穿透其外膜进入周质空间,从而启动其生命周期。

进入宿主后,捕食者将宿主转化为球形的蛭弧体,随后伸长并进行复制,裂解宿主以释放子代。

Myxococcus 可以捕食其他微生物,也可以在有机物上进行腐生生长。

捕食过程中,协调的 黏球菌 种群利用滑行运动接近并聚集在猎物表面...

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