1887

Abstract

In the course of a study aimed at isolating bacteria from Arctic soils by a method that selectively enriches for rare bioactive actinomycetes, a Gram-stain-negative, pigmented, non-motile rod, designated MN12-7, was isolated. The salmon-pink strain was, based on 16S rRNA gene sequence similarity, found to be affiliated with the family . Strain MN12-7 was catalase-, oxidase- and cellulase-positive and lacked gelatinase, urease, lipase and pectinase. The predominant cellular fatty acids were summed feature 3 (comprising Cω7 and/or Cω6), iso-C and Cω6. The major respiratory quinone of strain MN12-7 was MK-7, and the major polar lipid was phosphatidylethanolamine in addition to phosphatidylserine, seven unidentified lipids and six unidentified aminolipids. The DNA G+C content of strain MN12-7 was 38 mol%. Strain MN12-7 formed a separate lineage in a cluster containing ‘ comitans’, with which it shared 92.3 % 16S rRNA gene sequence similarity. Based on the phenotypic characteristics and phylogenetic inference, strain MN12-7 is proposed as a representative of a novel species in a new genus, gen. nov., sp. nov. The type strain of the type species is MN12-7 ( = KCTC 32015 = CIP 110422).

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2013-05-01
2019-10-20
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