Two strains of marine, heterotrophic, alkaliphilic bacteria, designated A3F-7 and ssthio04PA2-7c, were isolated from hard coral and marine sand, respectively, collected in the Republic of Palau. A phylogenetic analysis based on 16S rRNA gene sequences showed that the isolates were related to members of the genus . However, the sequence similarities between the isolates and the type strains of the species were less than 93 %. The G+C contents of the isolates were around 57 mol%, the major respiratory quinone was Q-8 and the predominant cellular fatty acids were 16 : 17, 16 : 0, 18 : 17 and 14 : 0. On the basis of the phylogenetic data, phenotypic characteristics and DNA–DNA hybridization results, strains A3F-7 and ssthio04PA2-7c represent a novel species of a novel genus, for which the name gen. nov., sp. nov. is proposed. The type strain of is A3F-7 (=MBIC06429 =DSM 19956).


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