title: Citreicella marina sp. nov., isolated from deep-sea sediment.
abstract: A taxonomic study was carried out on a novel strain, designated CK-I3-6(T), which was isolated from deep-sea sediment of the south-west Indian Ocean Ridge. Cells were Gram-reaction-negative, oxidase- and catalase-positive, rod-shaped and non-motile. Growth was observed at 4-38 °C and in 1-12 % (w/v) NaCl. Cells were able to degrade gelatin and oxidize thiosulfate but did not reduce nitrate. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain CK-I3-6(T) belonged to the genus Citreicella with a sequence similarity of 97.3 % to Citreicella thiooxidans CHLG 1(T), while similarities with other taxa were <95.7 %. DNA-DNA hybridization showed that strain CK-I3-6(T) and C. thiooxidans CHLG 1(T) showed a low DNA-DNA relatedness (48±3 %). The principal fatty acids were C(16 : 0) (7.8 %), C(18 : 1)ω7c (66.6 %), summed feature 3 (C(16 : 1)ω6c and/or C(16 : 1)ω7c; 6.3 %) and C(19 : 0)ω8c cyclo (10.0 %). The chromosomal DNA G+C content was 67.5 mol%. On the basis of the combined genotypic and phenotypic data, strain CK-I3-6(T) represents a novel species of the genus Citreicella, for which the name Citreicella marina sp. nov. is proposed. The type strain is CK-I3-6(T) ( = CCTCC AB 209064(T)  = LMG 25230(T)  = MCCC 1A03060(T)).
authors.affiliation: Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, State Oceanic Administration, PR China.
authors.forename: Qiliang
authors.initials: Q
authors.lastname: Lai
authors.affiliation: Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, State Oceanic Administration, PR China.
authors.forename: Yuanyuan
authors.initials: Y
authors.lastname: Fu
authors.affiliation: Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, State Oceanic Administration, PR China.
authors.forename: Jianning
authors.initials: J
authors.lastname: Wang
authors.affiliation: Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, State Oceanic Administration, PR China.
authors.forename: Shuangxi
authors.initials: S
authors.lastname: Chen
authors.affiliation: Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, State Oceanic Administration, PR China.
authors.forename: Huanzi
authors.initials: H
authors.lastname: Zhong
authors.affiliation: Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, State Oceanic Administration, PR China.
authors.forename: Fengqin
authors.initials: F
authors.lastname: Sun
authors.affiliation: Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, State Oceanic Administration, PR China.
authors.forename: Zongze
authors.initials: Z
authors.lastname: Shao
mesh_terms: D001482:Base Composition; D002374:Catalase / Q000378:metabolism; D016000:Cluster Analysis; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D005227:Fatty Acids / Q000032:analysis; D005780:Gelatin / Q000378:metabolism; D019015:Geologic Sediments / Q000382:microbiology*; D019156:Indian Ocean; D008969:Molecular Sequence Data; D009693:Nucleic Acid Hybridization; D010088:Oxidoreductases / Q000378:metabolism; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D041902:Rhodobacteraceae / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification* / Q000502:physiology; D017422:Sequence Analysis, DNA; D012965:Sodium Chloride / Q000378:metabolism; D013696:Temperature; D013885:Thiosulfates / Q000378:metabolism
chemical_list: D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D005227:Fatty Acids; D012336:RNA, Ribosomal, 16S; D013885:Thiosulfates; D012965:Sodium Chloride; D005780:Gelatin; D010088:Oxidoreductases; D002374:Catalase