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Int J Syst Evol Microbiol. 2018 Nov;68(11):3441-3446. doi: 10.1099/ijsem.0.003007.

Kribbella monticola sp. nov., a novel actinomycete isolated from soil.

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1​Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China.
2​State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China.


A novel actinobacterium, designated strain NEAU-SW521T, was isolated from soil collected from Xianglu Mountain, Heilongjiang province, north PR China. The results of analysis of the 16S rRNA gene indicated that NEAU-SW521T represented a member of the genus Kribbella. The results of phylogenetic analyses using the 16S rRNA gene and multilocus sequence analysis using the concatenated gene sequences of the gyrB, rpoB, relA, recA and atpD genes all indicated that the strain formed a clade with Kribbella alba DSM 15500T (99.16 %), Kribbella ginsengisoli JCM 16928T (98.96 %), Kribbella catacumbae JCM 14968T (98.82 %), Kribbella sancticallisti JCM 14969T (98.62 %), Kribbella qitaiheensis NEAU-GQTH2-3T (98.61 %) and Kribbella koreensis JCM 10977T (98.47 %). The cell wall contained ll-diaminopimelic acid as the major diamino acid and the whole-cell hydrolysates were ribose, glucose and galactose. The major polar lipids were diphosphatidylglycerol, phosphatidylcholine, phosphatidylglycerol, phosphatidylinositol and an unidentified phospholipid. The predominant menaquinone was MK-9(H4). Major fatty acids were iso-C16 : 0 and anteiso-C15 : 0. These chemotaxonomic data supported the affiliation of NEAU-SW521T to the genus Kribbella. The DNA G+C content was 67.8 mol%. Furthermore, the strain could be clearly distinguished by concatenated gene genetic distances, the combination of DNA-DNA hybridization results and some phenotypic characteristics. Therefore, it is proposed that NEAU-SW521T represents a novel species of the genus Kribbella, for which the name Kribbellamonticola sp. nov. is proposed. The type strain is NEAU-SW521T (=CGMCC 4.7465T=DSM 105770T).


16S rRNA gene; Kribbella monticola sp. nov.; polyphasic analysis

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