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Abstract

Two bacterial strains, CP153-3 and CP177-2, were isolated from biological soil crusts on the Colorado Plateau, USA, and assigned to the genus , according to 16S rRNA gene sequence analysis and phenotypic characteristics. The strains were Gram-positive, aerobic and psychrotolerant and showed positive catalase and negative oxidase reactions. Cells were motile in young cultures, motility consisting of subtle jerking motions, but no flagella could be detected. The strains shared high 16S rRNA gene sequence similarity (99.7 %) and DNA–DNA relatedness (99 %). They contained -diaminopimelic acid in the cell wall, the major menaquinone was MK-7(H) and the predominant fatty acids were C 9 and iso-C. A low DNA–DNA hybridization value of 20 % with the type strain of the type species of the genus , , as well as phenotypic differences, indicated that the isolates belong to a novel species, for which the name sp. nov. is proposed. Strain CP177-2 (=ATCC BAA-1038 =DSM 16676) was chosen as the type strain. An emended description of the genus is also presented. Further, two new orders are created to accommodate several families previously classified in the order Rainey 1997. The first, ord. nov., encompasses the families , and , and the second, ord. nov., includes the family .

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2009-01-01
2020-09-19
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vol. , part 1, pp. 87 - 94

Comparision of phenotypic, genotypic and chemotaxonomic characteristics among the members of the orders ord. nov., ord. nov. and Rainey 1997 emend. Reddy and Garcia-Pichel

Comparison of fatty acid methyl esters among members of the orders ord. nov. and

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