Abstract
A Gram-stain-positive, aerobic, rod-shaped, yellow actinobacterium, designated MNA2(T), was isolated from a hexachlorocyclohexane-contaminated soil in North India. Strain MNA2(T) showed 95 % 16S rRNA gene sequence similarity with Microbacterium halotolerans YIM 70130(T). Phylogenetic analysis of 16S rRNA gene sequences showed that strain MNA2(T) belonged to a clade represented by the genus Microbacterium of the family Microbacteriaceae. Strain MNA2(T) contained anteiso-C(15 : 0), anteiso-C(17 : 0), iso-C(16 : 0) and iso-C(15 : 0) as the predominant fatty acids and diphosphatidylglycerol, phosphatidylglycerol and two unknown polar lipids. The menaquinones were MK-12, MK-11, MK-13 and MK-10, in an approximate molar ratio of 45 : 40 : 13 : 3, respectively. The DNA G+C content was 65.3 mol%. The peptidoglycan was of the B type of cross-linkage with ornithine as the diagnostic diamino acid. The results of the phylogenetic, phenotypic and chemotaxonomic analysis indicate that strain MNA2(T) belongs to a previously unrecognized species of the genus Microbacterium, for which the name Microbacterium lindanitolerans sp. nov. is proposed. The type strain is MNA2(T) (=DSM 22422(T) =CCM 7585(T)).
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