Abstract:
:Two Gram-positive, rod-shaped, non-spore-forming bacteria (strains RHLT(1)-17(T) and RHLT(2)-1(T)) were isolated from Hailuogou glacier in Szechwan province, PR China. Phylogenetic analysis based on 16S rRNA gene sequences revealed that the strains belonged to the genus Nocardioides and shared 97.8 % sequence similarity with each other and 97.6 and 98.4 % sequence similarity, respectively, with Nocardioides kribbensis KSL-2(T). Strain RHLT(1)-17(T) grew at 0-35 °C and strain RHLT(2)-1(T) grew at 0-25 °C. The major cellular fatty acids of strain RHLT(1)-17(T) were C(17 : 1)ω8c (32.69 %) and iso-C(16 : 0) (21.74 %). The major cellular fatty acids of strain RHLT(2)-1(T) were C(18 : 1)ω9c (28.72 %), summed feature 3 (17.14 %; comprising C(16 : 1)ω7c and/or C(16 : 1)ω6c), iso-C(16 : 0) (14.35 %), C(16 : 0) (9.96 %) and iso-C(14 : 0) (8.34 %). Both strains contained ll-2,6-diaminopimelic acid in the cell-wall peptidoglycan and MK-8(H(4)) as the predominant menaquinone. On the basis of data obtained using a polyphasic approach, two novel species, Nocardioides szechwanensis sp. nov. (type strain RHLT(1)-17(T) = CGMCC 1.11147(T) = NBRC 108562(T)) and Nocardioides psychrotolerans sp. nov. (type strain RHLT(2)-1(T) =CGMCC 1.11156(T) = NBRC 108563(T)), are proposed.
journal_name
Int J Syst Evol Microbiolauthors
Liu Q,Xin YH,Liu HC,Zhou YG,Wen Ydoi
10.1099/ijs.0.038091-0subject
Has Abstractpub_date
2013-01-01 00:00:00pages
129-133issue
Pt 1eissn
1466-5026issn
1466-5034journal_volume
63pub_type
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