Abstract:
:A Gram-stain-positive, strictly aerobic and rod-shaped bacterium, designated strain XAT, was isolated from the moss, Physcomitrella patens, and characterized by using a polyphasic taxonomic approach. The novel strain was non-spore-forming, non-motile, catalase-positive and oxidase-negative. Its optimal temperature for growth occurred at 28-30 °C and the optimum pH for growth was 7.0-7.5. The major fatty acids comprised anteiso-C15 : 0, iso-C16 : 0, ω-cyclohexyl-C17 : 0 and anteiso-C17 : 0. The polar lipids contained diphosphatidylglycerol, phosphatidylglycerol, seven unidentified glycolipids, one unidentified phospholipid and one unidentified lipid. The major menaquinone was MK-11, followed by MK-10 and MK-12. The peptidoglycan type was B2γ and contained the amino acids 2,4-diaminobutyric acid, alanine, glycine, 3-hydroxy-glutamic acid and small amounts of glutamic acid. The genomic DNA G+C content of strain XAT was 68.2 mol%. Strain XAT exhibited highest 16S rRNA gene sequence similarity with Leifsonia lichenia 2SbT (96.3 %) and Humibacter antri D7-27T (96.2 %). However, phylogenetic analyses showed that strain XAT did not cluster with any species of the genera Leifsonia, Humibacter or other genera of the family Microbacteriaceae and the phylum Actinobacteria. Based on 16S rRNA gene sequence analyses, and the phenotypic and chemotaxonomic data, strain XAT is considered to represent a novel species of a novel genus, for which the name Cnuibacter physcomitrellae gen. nov., sp. nov. is proposed. The type strain is XAT ( = CGMCC 1.15041T = DSM 29843T).
journal_name
Int J Syst Evol Microbiolauthors
Zhou X,Nan Guo G,Qi Wang L,Lan Bai S,Hong Li Ydoi
10.1099/ijsem.0.000775subject
Has Abstractpub_date
2016-02-01 00:00:00pages
680-688issue
2eissn
1466-5026issn
1466-5034journal_volume
66pub_type
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