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The Pasteurellaceae comprise a large family of Gram-negative bacteria. Most members live as commensals on mucosal surfaces of birds and mammals, especially in the upper respiratory tract. Pasteurellaceae are typically rod-shaped, and are a notable group of facultative anaerobes. Their biochemical characteristics can be distinguished from the related Enterobacteriaceae by the presence of oxidase, and from most other similar bacteria by the absence of flagella.
The Ectothiorhodospiraceae are a family of purple sulfur bacteria, distinguished by producing sulfur globules outside of their cells. The cells are rod-shaped, vibrioid, or spirilla, and they are able to move using flagella. In general, they are marine and prefer anaerobic conditions. Ectothiorhodospiraceae are a vibrio bacteria that require salty living conditions to survive and grow: classifying them as slightly halophilic. Like all purple sulfur bacteria, they are capable of photosynthesis. To complete this energy process, Sulfur compounds are used as electron donors for carbon fixation in the pentose phosphate pathway. This elemental sulfur accumulates outside of the cells.
The Lachnospiraceae are a family of obligately anaerobic, variably spore-forming bacteria in the order Eubacteriales that ferment diverse plant polysaccharides to short-chain fatty acids and alcohols (ethanol). These bacteria are among the most abundant taxa in the rumen and the human gut microbiota. Members of this family may protect against colon cancer in humans by producing butyric acid. Lachnospiraceae have been found to contribute to diabetes in genetically susceptible (ob/ob) germ-free mice.
Ignatzschineria is a genus of bacteria from the class Gammaproteobacteria. Ignatzschineria is named after Ignaz Rudolph Schiner.
Marinifilum is a genus of bacteria from the family of Marinifilaceae.
Desulforhopalus is a Gram-negative, strictly anaerobic, and non-motile genus of bacteria from the family of Desulfobulbaceae.
Thermanaerovibrio is a Gram-negative, non-spore-forming chemoorganotrophic and thermophilic genus of bacteria from the family of Synergistaceae.
Cloacibacillus is a Gram-negative and anaerobic genus of bacteria from the family of Synergistaceae. Cloacibacillus bacteria are pathogenic.
Aminobacterium is a Gram-negative genus of bacteria from the family of Synergistaceae.
Niabella is a genus of bacteria from the family of Chitinophagaceae.
Taibaiella is a genus of bacteria from the family of Chitinophagaceae.
Terrimonas is a Gram-negative, aerobic and non-motile genus of bacteria from the family of Chitinophagaceae.
Halorhodospira neutriphila is a bacterium from the genus of Halorhodospira which has been isolated from a microbial mat from a marine saltern from Rhone Delta in France. The microbial mat forms at the sediment surface and is between 10 and 20 mm thick, below a fine layer (2–3 cm) of gypsum crust. The mat is composed of a red layer of purple bacteria strains below a green layer of cyanobacteria, interspersed with sulfur globules, and occasionally covered by halite deposits. These mat forming microbes live in anoxic muds and sediments and form a benthic mat in a hypersaline lagoon environment where the salinity of the water ranges from 240-320‰ of total salinity. H. neutriphila was isolated from the red layer of the microbial layer and found to be extremely halophilic and well adapted to withstand the extreme saline conditions of their modified marine habitat. The type strain was identified as strain SG 3301T.
Halochromatium is a Gram-positive and motile genus of bacteria from the family of Chromatiaceae. Halochromatium bacteria occur in microbial mats from hypersaline habitates.
Thiorhodococcus is a Gram-negative genus of bacteria from the family of Chromatiaceae.
Gramella is a genus of bacteria from the family of Flavobacteriaceae. Gramella is named after the Danish pharmacologist Hans Christian Gram.
Halobacteroides is a Gram-negative strictly anaerobic, chemoorganotrophic genus of bacteria from the family of Halobacteroidaceae.
Jeotgalibaca is a genus of bacteria from the family of Carnobacteriaceae.
Marinilactibacillus is a genus of bacteria from the family of Carnobacteriaceae.
Trichococcus is a mesophilic and psychrotolerant genus of bacteria from the family of Carnobacteriaceae. Trichococcus bacteria have the ability to utilize sugars, sugar alcohols and polysaccharides. Some species of Trichococcus species where transferred from the genera Lactosphaera and Ruminococcus.
References
- 1 2 3 4 5 6 "Halorhodospira". LPSN .
- ↑ "Halorhodospira". www.uniprot.org.
- ↑ Parker, Charles Thomas; Wigley, Sarah; Garrity, George M (12 May 2009). Parker, Charles Thomas; Garrity, George M (eds.). "Taxonomic Abstract for the genera". NamesforLife, LLC. doi:10.1601/tx.2171.
{{cite journal}}: Cite journal requires|journal=(help) - 1 2 Brenner, Don J.; Krieg, Noel R.; Staley, James R. (2007). Bergey's Manual® of Systematic Bacteriology: Volume 2: The Proteobacteria, Part B: The Gammaproteobacteria. Springer Science & Business Media. ISBN 9780387280226.
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