Erythrobacteraceae

Abstract

Abstract E.ry.thro.bac.te.ra'ceae. N.L. masc. n. Erythrobacter , type genus of the family; L. fem. pl. n. suff. ‐ aceae , ending to denote a family; N.L. fem. pl. n. Erythrobacteraceae , the Erythrobacter family. Pseudomonadota / Alphaproteobacteria / Sphingomonadales / Erythrobacteraceae Cells are Gram‐stain‐negative rods, cocci, or ellipsoids. Several species are motile. Aerobic or facultatively anaerobic. The dominant respiratory quinone is ubiquinone‐10 (Q‐10). The major polar lipids are phosphatidylethanolamine (PE), phosphatidylglycerol (PG), and glycosphingolipid (SGL). The cellular fatty acid profiles are dominated by unsaturated fatty acids including heptadecenoic acid (C 17 : 1 ) and octadecenoic acid (C 18 : 1 ). The family forms a monophyletic cluster in neighbor‐joining phylogenetic analyses of the 16S rRNA gene, while its genus discriminations are based on phylogenomic and genomic similarity analysis. It currently accommodates 19 genera. Members of the family Erythrobacteraceae were isolated from various habitats, including marine, terrestrial and freshwater environments. DNA G + C content (mol%) : 54–74 (by genome, HPLC or T m ). Type genus : Erythrobacter Shiba and Simidu 1982 VP .