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Abyssobacteria
Phylum of bacteria From Wikipedia, the free encyclopedia
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Abyssobacteria is a phylum of bacteria in the Patescibacteria group, characterized by small genomes and deep-branching phylogeny.[1][2]
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Etymology
The name ''Abyssobacteria'' derives from Latin ''abyssus'' (deep) and ''bacteria'', referring to their prevalence in deep subsurface habitats.[3]
Characteristics
Abyssobacteria are characterized by ultra-small cell sizes (typically <0.2 μm), reduced metabolic pathways, and dependence on host bacteria for nutrients, often in anoxic aquifers and deep subsurface sediments.[4] They exhibit limited fermentation capabilities and lack many biosynthetic genes, reflecting their parasitic or symbiotic lifestyles.
References
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