Labilibacter

Abstract

Abstract La.bi.li.bac'ter. L. masc. adj. labilis , gliding; N.L. masc. n. bacter , rod; N.L. masc. n. Labilibacter , gliding rod. Bacteroidetes / Bacteroidia / Bacteroidales / Marinilabiliaceae / Labilibacter Labilibacter is a genus within the family Marinilabiliaceae , order Bacteroidales , class Bacteroidia , and phylum Bacteroidetes . It currently includes three species – Labilibacter sediminis , Labilibacter aurantiacus , and Labilibacter marinus – isolated from marine sediment or sea squirts ( Styela clava ). Colonies of Labilibacter are circular and yellow or orange. The three species of the genus show different features, including the ability to hydrolyze gelatin, starch and produce indole and valine arylamidase. The major fatty acids are iso‐C 15:0 and anteiso‐C 15:0 . The major respiratory quinone is MK‐7. The polar lipid profile of the genus contains unidentified lipid, phospholipid, aminophospholipid, phosphatidylethanolamine, and aminolipid. The size of the genome is between 5.88 and 6.37 Mb. 16S rRNA gene sequence analysis indicated that the closest phylogenetic relatives of the genus Labilibacter are members of the genera Saccharicinis and Carboxylicivirga . DNA G + C content (mol%) : 35.1–35.9 (genome), 35.1–36.1 (HPLC). Type species : Labilibacter aurantiacus Lu et al. 2017 VP .