title: Aeromicrobium flavum sp. nov., isolated from air.
abstract: A Gram-positive, non-motile, facultatively anaerobic actinobacterium, designated TYLN1 T, was isolated from an air sample from the campus of Wuhan University, China, and subjected to a polyphasic taxonomic study. Strain TYLN1 T grew optimally at pH 7.0 and 30 degrees C. Analysis of 16S rRNA gene sequence similarities revealed that the organism belongs to the genus Aeromicrobium. The G+C content of the strain was 73.3 mol%. The cell-wall diamino acid was ll-2,6-diaminopimelic acid, the predominant menaquinones were MK-9(H4) and MK-8(H4) and the predominant fatty acid was C18:1 omega9c (68.38 %). These chemotaxonomic data also support the affiliation of strain TYLN1 T to the genus Aeromicrobium. The values for DNA-DNA hybridization between strain TYLN1 T and the phylogenetically closest relatives Aeromicrobium tamlense DSM 19087T and Aeromicrobium panaciterrae DSM 17939T were respectively 35 and 11.5 %. On the basis of the data from this study, the isolate represents a novel species, for which the name Aeromicrobium flavum sp. nov. is proposed. The type strain is TYLN1 T (=CCTCC AB 206046T =DSM 19355T).
authors.affiliation: College of Life Sciences, Wuhan University, Wuhan, PR China.
authors.forename: Yali
authors.initials: Y
authors.lastname: Tang
authors.forename: Guoling
authors.initials: G
authors.lastname: Zhou
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.forename: Jing
authors.initials: J
authors.lastname: Mao
authors.forename: Xuesong
authors.initials: X
authors.lastname: Luo
authors.forename: Mengxi
authors.initials: M
authors.lastname: Wang
authors.forename: Chengxiang
authors.initials: C
authors.lastname: Fang
mesh_terms: D000192:Actinomycetales / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification / Q000502:physiology; D000391:Air Microbiology; D015373:Bacterial Typing Techniques; D001482:Base Composition; D002681:China; D004269:DNA, Bacterial / Q000032:analysis; D004275:DNA, Ribosomal / Q000032:analysis; D005227:Fatty Acids / Q000032:analysis; D020459:Genes, rRNA; D008969:Molecular Sequence Data; D009693:Nucleic Acid Hybridization; D010641:Phenotype; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D017422:Sequence Analysis, DNA; D013045:Species Specificity
chemical_list: D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D005227:Fatty Acids; D012336:RNA, Ribosomal, 16S