Erythrobacter

Abstract

E.ry.thro.bac.ter. Gr. masc. adj. erythros , red; N.L. masc. n. bacter , rod; N.L. masc. n. Erythrobacter , red rod. Pseudomonadota / Alphaproteobacteria / Sphingomonadales / Erythrobacteraceae / Erythrobacter The genus Erythrobacter belonging to the family Erythrobacteraceae currently consists of fifteen species with validly published names: Erythrobacter alti , Erb. ani , Erb. aurantius , Erb. colymbi , Erb. crassostreae , Erb. cryptus , Erb. dokdonensis , Erb. donghaensis , Erb. insulae , Erb. litoralis , Erb. longus , Erb. neustonensis , Erb. ramosus , Erb. rubeus , and Erb. sanguineus . Historically, Erb. longus Och 101 T was one of the first identified aerobic anoxygenic, photoheterotrophic bacteria. Members of Erythrobacter mainly inhabit various aquatic environments, including seawater, marine mats, freshwater, and hot spring, and could accumulate more biomass for a given amount of organic carbon in luminous than in the nonluminous environments, playing an essential role in the carbon cycle. Cells are Gram‐stain‐negative, and most of the members are motile by flagella. The main respiratory quinone is ubiquinone‐10. The major polar lipids are phosphatidylethanolamine (PE), phosphatidylglycerol (PG), and sphingoglycolipid (SGL). The predominant cellular fatty acids are C 18:1 ω7 c and C 17:1 ω6 c . DNA G + C content (mol%) : 57–67 (by genome sequence or HPLC). Type species : Erythrobacter longus Shiba and Simidu 1982 VP .