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Reclassification of Desulfotomaculum auripigmentum as Desulfosporosinus auripigmenti corrig., comb. nov.

DSMZ – Deutsche Sammlung von Mikroorganismen und Zellkulturen, Mascheroder Weg 1b, 38124 Braunschweig, Germany

Correspondence
Erko Stackebrandt
Erko{at}DSMZ.de

The species Desulfotomaculum auripigmentum is reclassified as Desulfosporosinus auripigmenti corrig., comb. nov. on the basis of morphological and physiological traits, phylogenetic position and chemotaxonomic properties. Characteristics supplementary to those provided in the original description reveal that the type strain, DSM 13351^T (=ATCC 700205^T), forms oval, subterminal to terminal spores, possesses LL-diaminopimelic acid and contains MK-7 as the predominant menaquinone, while the whole-cell methanolysate contains even-carbon, straight-chain saturated and mono-unsaturated fatty acids and 1,1-dimethylacetals as major components. DNA–DNA reassociation values below 30 % for Desulfosporosinus orientis DSM 765^T and Desulfosporosinus meridiei DSM 13257^T demonstrate that strain DSM 13351^T shows sufficient genomic differences to maintain its species status. Lack of motility, a smaller cell diameter and the ability to use malate and glycerol as electron donors and fumarate and arsenate as electron acceptors are the main properties that differentiate Desulfosporosinus auripigmenti from the other two species of the genus.

The GenBank/EMBL/DDBJ accession numbers for the 16S rRNA gene sequences of Desulfosporosinus auripigmenti DSM 13351^T and Desulfosporosinus orientis DSM 7493 are AJ493051 and AJ493052, respectively.

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