title: Maritalea porphyrae sp. nov., isolated from a red alga (Porphyra yezoensis), and transfer of Zhangella mobilis to Maritalea mobilis comb. nov.
abstract: Three Gram-negative, motile, aerobic bacteria were isolated from cultures of the marine red alga Porphyra yezoensis. Phylogenetic analysis based on 16S rRNA gene sequences revealed that the novel strains were closely related to Maritalea myrionectae CL-SK30(T) (97.9% 16S rRNA gene sequence similarity) and Zhangella mobilis E6(T) (96.2 %). 16S rRNA gene sequence similarity between Z. mobilis E6(T) and M. myrionectae CL-SK30(T) was 97.9%. The DNA G+C contents of the isolates (49.4-50.0 mol%) were similar to those of M. myrionectae DSM 19524(T) (52.3 mol%) and Z. mobilis JCM 15144(T) (50.3 mol%). From these results, it was difficult to differentiate the genus Zhangella from the genus Maritalea. DNA-DNA hybridization demonstrated that the isolates belonged to a single species. The isolates could also be distinguished from M. myrionectae and Z. mobilis on the basis of chemotaxonomic and phenotypic features, including fatty acid composition (particularly C(16:1)ω7c), growth with 6-9% (w/v) NaCl, carbon utilization, oxidation patterns and so on. A novel species of the genus Maritalea is proposed to accommodate the three isolates, with the name Maritalea porphyrae sp. nov. The type strain is LCM-3(T) (=LMG 25872(T)=NBRC 107169(T)). Furthermore, it is proposed that Zhangella mobilis should be transferred from the genus Zhangella to the genus Maritalea, with the name Maritalea mobilis comb. nov. (type strain E6(T)=CGMCC 1.7002(T)=JCM 15144(T)).
authors.affiliation: National Research Institute of Fisheries Science, Fisheries Research Agency, Yokohama 236-8648, Japan.
authors.forename: Youhei
authors.initials: Y
authors.lastname: Fukui
authors.affiliation: National Fisheries University, Shimonoseki 759-6595, Japan.
authors.forename: Mahiko
authors.initials: M
authors.lastname: Abe
authors.affiliation: Seikai National Fisheries Research Institute, Nagasaki, 851-2213, Japan.
authors.forename: Masahiro
authors.initials: M
authors.lastname: Kobayashi
authors.affiliation: National Research Institute of Fisheries Science, Fisheries Research Agency, Yokohama 236-8648, Japan.
authors.forename: Kenji
authors.initials: K
authors.lastname: Ishihara
authors.affiliation: National Research Institute of Fisheries and Environment of Inland Sea, Fisheries Research Agency, Hiroshima 739-0452, Japan.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Oikawa
authors.affiliation: National Research Institute of Fisheries Science, Fisheries Research Agency, Yokohama 236-8648, Japan.
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Yano
authors.affiliation: National Research Institute of Fisheries Science, Fisheries Research Agency, Yokohama 236-8648, Japan.
authors.forename: Masataka
authors.initials: M
authors.lastname: Satomi
mesh_terms: D000332:Aerobiosis; D015373:Bacterial Typing Techniques; D001482:Base Composition; D016000:Cluster Analysis; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D005227:Fatty Acids / Q000032:analysis; D041921:Hyphomicrobiaceae / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification* / Q000502:physiology; D008124:Locomotion; D008969:Molecular Sequence Data; D009693:Nucleic Acid Hybridization; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D000461:Rhodophyta / Q000382:microbiology*; D017422:Sequence Analysis, DNA
chemical_list: D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D005227:Fatty Acids; D012336:RNA, Ribosomal, 16S