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Gammaproteobacteria is a class of bacteria in the phylum Pseudomonadota (synonym Proteobacteria ). It contains about 250 genera, which makes it the most genus-rich taxon of the Prokaryotes. [1] Several medically, ecologically, and scientifically important groups of bacteria belong to this class. All members of this class are Gram-negative.
- Gammaproteobacteria, Garrity et al. 2005
- Pseudomonadota
Dec 24, 2022 · Gammaproteobacteria is a class of several medically, ecologically and scientifically important groups of bacteria, such as the Enterobacteriaceae ( Escherichia coli ), Vibrionaceae and Pseudomonadaceae. Like all Proteobacteria, the Gammaproteobacteria are Gram-negative.
The phylum comprises six classes Acidithiobacilia, Alphaproteobacteria, Betaproteobacteria, Gammaproteobacteria, Hydrogenophilia, and Zetaproteobacteria. The Pseudomonadota are widely diverse, with differences in morphology, metabolic processes, relevance to humans, and ecological influence.
- Pseudomonadota, Garrity et al. 2021
Gammaproteobacteria consists of human pathogens (e.g., Pseudomonas aeruginosa Salmonella, Vibrio, and Yersinia ,); some genera are methane oxidizers and some genera are in symbiosis with hydrothermal vent dwelling animals. Pseudomonas aeruginosa is a stringently aerobic, nonfermenting motile bacterium.
1 Introduction. The gamma-proteobacterium Methylococcus capsulatus (Bath) is one of the most extensively studied methanotrophs. It is ubiquitous in nature and has frequently been used in commercial pilot studies involving methanotrophs ( Larsen and Joergensen, 1996; Murrell, 2010 ). Electron micrographs show that its cell envelope contains a ...
Sep 30, 2021 · Our results determined that Gammaproteobacteria were an indicator taxon in the guts of the soil invertebrates that responded to environmental concentrations of soil pollutants, thus providing an effective theoretical basis for subsequent assessments of soil ecological risk.
Dec 24, 2022 · All proteobacteria are Gram-negative, with an outer membrane mainly composed of lipopolysaccharides. The divisions of the proteobacteria include: Alphaproteobacteria, Betaproteobacteria, Gammaproteobacteria, Deltaproteobacteria, Epsilonproteobacteria and Zetaproteobacteria.
