Methylibium Nakatsu et al. 2006
General information
Description and emendation
Cells are motile, Gram-negative straight rods. Oxidase-positive. Negative for gelatinase and catalase. Hydrolyse urea and reduce nitrate to nitrite. Cells possess PHB granules as a storage material and reproduce by binary fission. Growth occurs heterotrophically under aerobic conditions. Facultative methylotrophs able to use methanol as a sole carbon source in addition to a variety of other more complex carbon sources. The major quinone is Q-8. The major fatty acids are C16:1 ω7c and C16:0, and in lesser amounts C10:0 3-OH, C12:0, C12:0 2-OH, C12:0 3-OH, C14:0, C17:0 cyclo ω7,8c, C18:1 ω7c and C18:0. The DNA G+C content of the type species is 69 mol%.
1: According to the original description, members of the genus are able to hydrolyse urea. However, Methylibium fulvum is unable to hydrolyse urea; therefore, the hydrolysis of urea is not a distinguishing characteristic of the genus Methylibium.
2: Cells are motile, Gram-negative, straight rods. Oxidase-positive. Negative for gelatinase and catalase. Hydrolyse urea and reduce nitrate to nitrite. Cells possess poly-β-hydroxybutyrate granules as a storage material and reproduce by binary fission. Growth occurs heterotrophically under aerobic conditions. Facultative methylotrophs, able to use methanol as a sole carbon source in addition to a variety of other, more complex carbon sources. The major quinone is Q-8. The major cellular fatty acids are C16:1 ω7c and/or iso-C15:0 2-OH and C16:0; C12:0 2-OH and C12:0 3-OH are present. Major polyamines are 2-hydroxyputrescine and putrescine; cadaverine and spermine are present as minor compounds. Major polar lipids are diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine; one unidentified aminolipid is present. The DNA G+C content of the type species is 69 mol% (HPLC).
Subdivision(s)
MID | Name | Rank | Taxon ID |
---|---|---|---|
M022503010006001 | Methylibium petroleiphilum | Species | 105560 |