title: Natronoarchaeum mannanilyticum gen. nov., sp. nov., an aerobic, extremely halophilic archaeon isolated from commercial salt.
abstract: Strain YSM-123(T) was isolated from commercial salt made from Japanese seawater in Niigata prefecture. Optimal NaCl and Mg(2+) concentrations for growth were 4.0-4.5 M and 5 mM, respectively. The isolate was a mesophilic and slightly alkaliphilic haloarchaeon, whose optimal growth temperature and pH were 37 °C and pH 8.0-9.0. Phylogenetic analysis based on 16S rRNA gene sequence analysis suggested that strain YSM-123(T) is a member of the phylogenetic group defined by the family Halobacteriaceae, but there were low similarities to type strains of other genera of this family (≤90 %); for example, Halococcus (similarity <89 %), Halostagnicola (<89 %), Natronolimnobius (<89 %), Halobiforma (<90 %), Haloterrigena (<90 %), Halovivax (<90 %), Natrialba (<90 %), Natronobacterium (<90 %) and Natronococcus (<90 %). The G+C content of the DNA was 63 mol%. Polar lipid analysis revealed the presence of phosphatidylglycerol, phosphatidylglycerophosphate methyl ester, disulfated diglycosyl diether and an unknown glycolipid. On the basis of the data presented, we propose that strain YSM-123(T) should be placed in a new genus and species, Natronoarchaeum mannanilyticum gen. nov., sp. nov. The type strain of Natronoarchaeum mannanilyticum is strain YSM-123(T) (=JCM 16328(T) =CECT 7565(T)).
authors: Bio-Nano Electronics Research Center, Toyo University, 2100 Kujirai, Kawagoe-shi, Saitama 350-8585, Japan.|Toyo University, 2100 Kujirai, Kawagoe-shi, Saitama 350-8585, Japan.|Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-cho, Yokosuka-shi, Kanagawa 237-0061, Japan.
authors: Yasuhiro
authors: Y
authors: Shimane
authors: Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-cho, Yokosuka-shi, Kanagawa 237-0061, Japan.
authors: Yuji
authors: Y
authors: Hatada
authors: Bio-Nano Electronics Research Center, Toyo University, 2100 Kujirai, Kawagoe-shi, Saitama 350-8585, Japan.|Toyo University, 2100 Kujirai, Kawagoe-shi, Saitama 350-8585, Japan.
authors: Hiroaki
authors: H
authors: Minegishi
authors: Bio-Nano Electronics Research Center, Toyo University, 2100 Kujirai, Kawagoe-shi, Saitama 350-8585, Japan.|Toyo University, 2100 Kujirai, Kawagoe-shi, Saitama 350-8585, Japan.
authors: Toru
authors: T
authors: Mizuki
authors: Bio-Nano Electronics Research Center, Toyo University, 2100 Kujirai, Kawagoe-shi, Saitama 350-8585, Japan.|Toyo University, 2100 Kujirai, Kawagoe-shi, Saitama 350-8585, Japan.
authors: Akinobu
authors: A
authors: Echigo
authors: Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-cho, Yokosuka-shi, Kanagawa 237-0061, Japan.
authors: Masayuki
authors: M
authors: Miyazaki
authors: Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-cho, Yokosuka-shi, Kanagawa 237-0061, Japan.
authors: Yukari
authors: Y
authors: Ohta
authors: Bio-Nano Electronics Research Center, Toyo University, 2100 Kujirai, Kawagoe-shi, Saitama 350-8585, Japan.|Toyo University, 2100 Kujirai, Kawagoe-shi, Saitama 350-8585, Japan.
authors: Ron
authors: R
authors: Usami
authors: Department of Infection, Immunity and Inflammation, University of Leicester, Room 144, Maurice Shock Medical Sciences Building, Leicester, UK.
authors: William D
authors: WD
authors: Grant
authors: Toyo University, 2100 Kujirai, Kawagoe-shi, Saitama 350-8585, Japan.|Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-cho, Yokosuka-shi, Kanagawa 237-0061, Japan.
authors: Koki
authors: K
authors: Horikoshi
mesh_terms: D000332:Aerobiosis; D001482:Base Composition; D019641:DNA, Archaeal / Q000235:genetics; D006216:Halobacteriaceae / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification* / Q000378:metabolism; D008969:Molecular Sequence Data; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D017673:Sodium Chloride, Dietary / Q000032:analysis / Q000378:metabolism*
chemical_list: D019641:DNA, Archaeal; D012336:RNA, Ribosomal, 16S; D017673:Sodium Chloride, Dietary