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Int J Syst Evol Microbiol. 2010 Jul;60(Pt 7):1609-12. doi: 10.1099/ijs.0.011957-0. Epub 2009 Aug 21.

Flavihumibacter petaseus gen. nov., sp. nov., isolated from soil of a subtropical rainforest.

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  • 1State Key Lab for Agrobiotechnology, Key Laboratory of Agro-Microbial Resource and Application, College of Biological Sciences, China Agricultural University, Beijing 100193, PR China.


A yellow-coloured bacterium, T41(T), was isolated from a soil sample of a subtropical rainforest in Nepal. Cells were Gram-reaction-positive, aerobic, non-motile, short rods. Phylogenetic analysis based on 16S rRNA gene sequences indicated that the strain formed a cluster with Terrimonas ferruginea, Terrimonas lutea, Niabella soli, Flavisolibacter ginsengiterrae, Flavisolibacter ginsengisoli, Niastella yeongjuensis and Niastella koreensis in the phylum Bacteroidetes. The strain showed the highest sequence similarity to the type strain of Terrimonas lutea (93.2 %). The major isoprenoid quinone was MK-7 and the predominant cellular fatty acids (>10 %) were iso-15 : 0 (33.8 %), iso-15 : 1 G (13.3 %) and iso-17 : 0 3-OH (12.9 %). The DNA G+C content was 48.1 mol%. On the basis of phenotypic and phylogenetic data and genomic distinctiveness, strain T41(T) represents a novel species in a new genus in the phylum Bacteroidetes, for which the name Flavihumibacter petaseus gen. nov., sp. nov. is proposed. The type strain of Flavihumibacter petaseus is strain T41(T) (=CGMCC 1.7723(T) =NBRC 106054(T)).

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