title: Nocardioides terrae sp. nov., isolated from forest soil.
abstract: Bacterial strain VA15(T) was isolated from forest soil of the Changbai Mountains, Heilongjiang Province, China. Cells of strain VA15(T) were Gram-positive-staining, 0.2-0.3 mum in diameter and 0.3-1.0 mum long, strictly aerobic, non-motile and rod-shaped or coccoid. Growth occurred at 16-34 degrees C (optimum, 29 degrees C), at pH 5.5-8.5 (optimum, pH 6.2-6.5) and in the presence of 0-1 % (w/v) NaCl (optimum, 0-0.25 %). Strain VA15(T) contained MK-8(H(4)) as the major respiratory quinone and ll-2,6-diaminopimelic acid as the cell-wall diamino acid. The major cellular fatty acids were iso-C(16 : 0) (18.1 % of the total), 10-methyl C(18 : 0) (11.8 %) and 10-methyl C(17 : 0) (10.7 %). The DNA G+C content of strain VA15(T) was 71.6 mol% (T(m)). 16S rRNA gene sequence analysis indicated that strain VA15(T) was phylogenetically related to members of the genus Nocardioides; levels of similarity to the type strains of recognized Nocardioides species ranged from 92.9 to 97.7 %. Levels of DNA-DNA relatedness between strain VA15(T) and its closest phylogenetic relatives, Nocardioides panacihumi DSM 18660(T) and Nocardioides marinus DSM 18248(T), were 21 and 16 %, respectively. Based on these results, it is concluded that strain VA15(T) represents a novel species of the genus Nocardioides, for which the name Nocardioides terrae sp. nov. is proposed. The type strain is VA15(T) (=CGMCC 1.7056(T) =NBRC 104259(T)).
authors.affiliation: State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China.
authors.forename: Jia-Yue
authors.initials: JY
authors.lastname: Zhang
authors.forename: Xing-Yu
authors.initials: XY
authors.lastname: Liu
authors.forename: Shuang-Jiang
authors.initials: SJ
authors.lastname: Liu
mesh_terms: D000192:Actinomycetales / Q000145:classification / Q000235:genetics / Q000302:isolation & purification* / Q000378:metabolism; D015373:Bacterial Typing Techniques; D001482:Base Composition; D002681:China; D004269:DNA, Bacterial / Q000235:genetics; D004275:DNA, Ribosomal / Q000235:genetics; D005227:Fatty Acids / Q000737:chemistry / Q000378:metabolism; D008969:Molecular Sequence Data; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012988:Soil Microbiology; D014197:Trees / Q000382:microbiology*
chemical_list: D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D005227:Fatty Acids; D012336:RNA, Ribosomal, 16S