title: Flavobacterium cauense sp. nov., isolated from sediment of a eutrophic lake.
abstract: A Gram-negative, rod-shaped, yellow-pigmented bacterium, designated strain R2A-7(T), was isolated from sediment of the eutrophic Taihu Lake in Jiangsu Province, China. The isolate was subjected to a taxonomic study using a polyphasic approach. Phylogenetic analysis based on the 16S rRNA gene sequences placed strain R2A-7(T) within the genus Flavobacterium in the family Flavobacteriaceae. The highest sequence similarity was found with Flavobacterium saliperosum (98.3 %), followed by other Flavobacterium species with similarities <96.0 %. The major fatty acids (>5 %) were 15 : 0 iso, 17 : 1 iso omega9c, 17 : 0 iso 3-OH, 15 : 1 iso G and 15 : 0 iso 3-OH. The G+C content of the genomic DNA of strain R2A-7(T) was 37.7 mol%. The DNA-DNA relatedness value with F. saliperosum CGMCC 1.3801(T) was 40.6 %. Molecular and phenotypic data suggest that strain R2A-7(T) represents a novel species within the genus Flavobacterium, for which the name Flavobacterium cauense is proposed. The type strain is R2A-7(T) (=CGMCC 1.7270(T)=NBRC 104929(T)).
authors.affiliation: College of Biological Sciences, China Agricultural University, Beijing 100193, People's Republic of China.
authors.forename: Jian-Hang
authors.initials: JH
authors.lastname: Qu
authors.forename: Hong-Li
authors.initials: HL
authors.lastname: Yuan
authors.forename: Hai-Feng
authors.initials: HF
authors.lastname: Li
authors.forename: Chun-Ping
authors.initials: CP
authors.lastname: Deng
mesh_terms: D004269:DNA, Bacterial / Q000235:genetics; D004275:DNA, Ribosomal / Q000235:genetics; D005068:Eutrophication; D005227:Fatty Acids / Q000737:chemistry / Q000378:metabolism; D005417:Flavobacterium / Q000145:classification / Q000235:genetics / Q000302:isolation & purification* / Q000378:metabolism; D005618:Fresh Water / Q000382:microbiology*; D019015:Geologic Sediments / Q000382:microbiology*; D008969:Molecular Sequence Data; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics
chemical_list: D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D005227:Fatty Acids; D012336:RNA, Ribosomal, 16S