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Microbial Diversity
Proteobacteria Classes and Their Key Roles
Description
Proteobacteria are a large and diverse phylum of Gram-negative bacteria. They have an outer membrane that contains lipopolysaccharides. Many of them use different ways to get energy, including phototrophy, chemolithotrophy, and heterotrophy. They live in soil, water, and host-associated environments.
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Transcript
变形菌门是一类多样化的革兰氏阴性菌,可分为五个纲。
α-变形菌纲是一个包含十个目的多样化类群。Rhizobiales目是其中最大的一个目,包含如Rhizobium和Agrobacterium等固氮属。
β-变形菌纲(Betaproteobacteria)分为六个目。其中最显著的属包括来自奈瑟菌目(Neisseriales)的Neisseria和来自亚硝化单胞菌目(Nitrosomonadales)的Nitrosomonas。
Gammaproteobacteria 是最多样化的一类,包含 15 个目。该类包括肠杆菌目(Enterobacteriales),其内含有如 大肠杆菌...
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