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The Rhizobiales are an order of Gram-negative Alphaproteobacteria.
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.
Rhodopila globiformis is a species of bacteria, formerly known as Rhodopseudomonas globiformis. It is a motile, spherical organism. Cells can grow between 1.6–1.8 μm in diameter. The photopigments consist of bacteriochlorophyll aP and aliphatic methoxylated ketocarotenoids. The organism grows under anaerobic conditions in the light or under microaerophilic conditions in the dark. Biotin, p-aminobenzoic acid and a source of reduced sulfur are required as growth factors in order to cultivate this bacteria. This bacteria possesses a high potential cytochrome c2.
Methylocella silvestris is a bacterium. It is Gram-negative, aerobic, non-pigmented, non-motile, rod-shaped and methane-oxidizing facultative methanotroph. It lacks intracytoplasmic membranes common to all methane-oxidizing bacteria except Methylocella, but contain a vesicular membrane system connected to the cytoplasmic membrane. BL2(T) is the type strain.
Thermacetogenium phaeum is a bacterium, the type species of its genus. It is strictly anaerobic, thermophilic, syntrophic and acetate-oxidizing. Its cells are gram-positive, endospore-forming and rod-shaped. Its type strain is PBT. It has a potential biotechnological role.
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.
Methylosphaera hansonii, also called Antarctic budding methanotroph AM6, is a species of psychrophilic, group I methanotrophs, named after microbiologist Richard S. Hanson. It is non-motile, coccoidal in morphology, does not form resting cells, reproduces by constriction, and requires seawater for growth. Its type strain is ACAM 549.
Methylomonas scandinavica is a species of Gram-negative gammaproteobacteria found in deep igneous rock ground water in Sweden. As a member of the Methylomonas genus, M. scandinavica has the ability to use methane as a carbon source.
Bryocella elongata is a bacterium, a type species of genus Bryocella. Cells are Gram-negative, non-motile pink-pigmented rods that multiply by normal cell division and form rosettes. The type strain is SN10(T). B. elongata was first isolated in 2011 from a methanotropic enrichment culture.
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.
Methylocystis heyeri is a Gram-negative, aerobic, methanotrophic and non-motile bacterium species from the genus of Methylocystis which has been isolated from Sphagnum peat in the Großer Teufelssee in Germany.
Methylocystis hirsuta is a Gram-negative, aerobic and methanotroph bacterium species from the genus of Methylocystis which has been isolated from a groundwater aquifer from Mountain View in California in the United States.
Methylocystis parvus is a methylotroph bacterium species from the genus of Methylocystis.
Methylopila trichosporium is an obligate aerobic and methane-oxidizing bacterium species from the genus of Methylopila.
Methyloferula is a Gram-negative, mesophilic, psychrotolerant, aerobic and colorless genus of bacteria from the family of Beijerinckiaceae. Up to now there is only one species of this genus known.
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 Methylocellaspp however it is unable to grow on multicarbon substrates. It's genome was sequenced in March and April 2015.
Mucilaginibacter gracilis is a Gram-negative, facultatively aerobic, heterotrophic and non-motile bacterium from the genus of Mucilaginibacter which has been isolated from Sphagnum peat bog in the Tomsk Region in Russia.
Mucilaginibacter paludis is a facultatively aerobic and heterotrophic bacterium from the genus of Mucilaginibacter which has been isolated from acidic Sphagnum peat bog in western Siberia in Russia. Mucilaginibacter paludis has the ability to degrade pectin, xylan and laminarin.
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.
Singulisphaera is a moderately acidophilic and mesophilic genus of bacteria from the family of Planctomycetaceae.
References
- ↑ Dedysh, S. N.; Liesack, W.; Khmelenina, V. N.; Suzina, N. E.; Trotsenko, Y. A.; Semrau, J. D.; Bares, A. M.; Panikov, N. S.; Tiedje, J. M. (2000). "Methylocella palustris gen. nov., sp. nov., a new methane-oxidizing acidophilic bacterium from peat bogs, representing a novel subtype of serine-pathway methanotrophs". International Journal of Systematic and Evolutionary Microbiology. 50 (3): 955–969. doi: 10.1099/00207713-50-3-955 . ISSN 1466-5026. PMID 10843033.
