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Proteobacteria is a major phylum of Gram-negative bacteria. They include a wide variety of pathogenic genera, such as Escherichia, Salmonella, Vibrio, Helicobacter, Yersinia, Legionellales, and many others. Others are free-living (nonparasitic) and include many of the bacteria responsible for nitrogen fixation.
Methanotrophs are prokaryotes that metabolize methane as their source of carbon and energy. They can be either bacteria or archaea and can grow aerobically or anaerobically, and require single-carbon compounds to survive.
Porphyromonas is a Gram-negative, non-spore-forming, obligately anaerobic and non-motile genus from the family of Porphyromonadaceae. This genus has been found to be part of the salivary microbiome. The use of targeted 16S rRNA gene metagenomic sequencing has shown that the genus is well represented in healthy individuals from the Human Microbiome Project.
Methylocella silvestris is a bacterium from the genus Methylocella spp which are found in many acidic soils and wetlands. Historically, Methylocella silvestris was originally isolated from acidic forest soils in Germany, and it is described as Gram-negative, aerobic, non-pigmented, non-motile, rod-shaped and methane-oxidizing facultative methanotroph. As an aerobic methanotrophic bacteria, Methylocella spp use methane (CH4), and methanol as their main carbon and energy source, as well as multi compounds acetate, pyruvate, succinate, malate, and ethanol. They were known to survive in the cold temperature from 4° to 30° degree of Celsius with the optimum at around 15° to 25 °C, but no more than 36 °C. They grow better in the pH scale between 4.5 to 7.0. It lacks intracytoplasmic membranes common to all methane-oxidizing bacteria except Methylocella, but contain a vesicular membrane system connected to the cytoplasmic membrane. BL2T (=DSM 15510T=NCIMB 13906T) is the type strain.
Methylocella palustris is a species of bacterium. It is notable for oxidising methane. It is acidophilic and was first found in a peat bogs, representing a novel subtype of serine-pathway methanotrophs, for which a new genus was described. It is aerobic, Gram-negative, colourless, non-motile and its cells can be straight or curved rods. Strain KT is the type strain.
Methylocapsa acidiphila is a bacterium. It is a methane-oxidizing and dinitrogen-fixing acidophilic bacterium first isolated from Sphagnum bog. Its cells are aerobic, gram-negative, colourless, non-motile, curved coccoids that form conglomerates covered by an extracellular polysaccharide matrix. The cells use methane and methanol as sole sources of carbon and energy. B2T is the type strain.
Methylocella tundrae is a species of bacterium. It is notable for oxidising methane. Its cells are aerobic, Gram-negative, non-motile, dinitrogen-fixing rods. Strain T4T is the type strain.
Methylocapsa aurea is a Gram-negative, aerobic, non-motile bacteria from the genus of Methylocapsa which was isolated from forest soil in Germany. It is a facultative methanotroph.
Methylovirgula is a Gram-negative, aerobic genus of bacteria from the family of Beijerinckiaceae.
Cryobacterium is a Gram-positive and strictly aerobic bacterial genus from the family of Microbacteriaceae.
Ammoniphilus is a Gram-variable, strictly aerobic, rod-shaped, haloalkalitolerant spore-forming, obligately oxalotrophic and motile bacterial genus from the family of Paenibacillaceae with peritrichous flagella. In the cell wall of Ammoniphilus is meso-diaminopimelic acid.
Blastomonas is a Gram-negative, photoheterotrophic, strictly aerobic and non-spore-forming bacteria genus from the family of Sphingomonadaceae.
Methyloferula stellata is a Gram-negative and non-motile bacteria from the genus of Methyloferula which has been isolated from acidic peat soil from Arkhangelsk in Russia. In contrast to most known Methanotrophs Methyloferula stellata is an aerobic acidophilic methanotroph. This makes it similar to Methylocella species, however it is unable to grow on multicarbon substrates. It's genome was sequenced in March and April 2015.
Larkinella is a Gram-negative, chemoorganotrophic and strictly aerobic bacterial genus from the family of Cytophagaceae.
Methylacidiphilum infernorum is an extremely acidophilic methanotrophic aerobic bacteria first isolated and described in 2007 growing on soil and sediment on Hell’s Gate, New Zealand. Similar organisms have also been isolated from geothermal sites on Italy and Russia.
Oribacterium is a strictly anaerobic and non-spore-forming bacterial genus from the family of Lachnospiraceae.
Olsenella is a Gram-positive, non-spore-forming, obligate anaerobic and non-motile bacterial genus from the family of Coriobacteriaceae. Olsenella is named after the microbiologist Ingar Olsen Olsenella bacteria are involved in endodontic infections in humans.
Thalassobacillus is a Gram-positive and moderately halophilic genus of bacteria from the family of Bacillaceae. Thalassobacillus bacteria produces Meso-diaminopimelic acid.
Singulisphaera is a moderately acidophilic and mesophilic genus of bacteria from the family of Planctomycetaceae.
Knoellia is a genus of Gram positive, aerobic, non-endosporeforming bacteria. Species in this genus are mesophilic and have cells that are irregular rods or coccoid.
References
- 1 2 3 4 5 Parte, A.C. "Methyloferula". LPSN .
- ↑ "Methyloferula". Www.uniprot.org.
- ↑ Dedysh, Svetlana N.; Dunfield, Peter F. (1 January 2015). "Methyloferula". Bergey's Manual of Systematics of Archaea and Bacteria. John Wiley & Sons, Ltd: 1–5. doi:10.1002/9781118960608.gbm01403. ISBN 9781118960608.