title: Sphingomicrobium lutaoense gen. nov., sp. nov., isolated from a coastal hot spring.
abstract: A yellowish pigmented, Gram-negative, rod-shaped, non-spore-forming bacterium (strain CC-TBT-3(T)), was isolated on marine agar 2216 from a coastal hot spring of Green Island (Lutao), located off Taituang, Taiwan. 16S rRNA gene sequence analysis of strain CC-TBT-3(T) showed a relatively low similarity (<95.5 %) to representatives of the genera Novosphingobium, Sphingosinicella and Sphingomonas of the Sphingomonadaceae, with the most related strain being the type strain of Novosphingobium soli. In addition to the relatively low 16S rRNA gene sequence similarity to members of established species, the isolate also showed some unique chemotaxonomic features, including the presence of some glycolipids with unusual chromatographic behaviour. The major components of the polar lipid profile were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, sphingoglycolipid and three unidentified glycolipids. The major respiratory quinone was ubiquinone Q-10. The polyamine pattern was characterized by the triamine sym-homospermidine as a major component. Although the predominant fatty acids were C(18:1)ω7c and summed feature 3 (C(16:1)ω7c and/or iso-C(15:0) 2-OH), the isolate did not show the typical hydroxyl fatty acids, such as C(14:0) 2-OH, C(15:0) 2-OH and C(16:0) 2-OH, found in members of the genera Novosphingobium, Sphingomonas and Sphingosinicella, but showed instead high amounts of C(18:1) 2-OH (12.0 %). The DNA G+C content of strain CC-TBT-3(T) was 63.4 mol%. 16S rRNA gene sequence, chemotaxonomic and physiological analyses revealed that strain CC-TBT-3(T) represents a novel species in a new genus in the family Sphingomonadaceae for which the name Sphingomicrobium lutaoense gen. nov., sp. nov. is proposed; the type strain is of the type species S. lutoaense, CC-TBT-3(T) ( = DSM 24194(T) = CCM 7794(T)).
authors.affiliation: Institut für Angewandte Mikrobiologie, Justus-Liebig-Universität Giessen, D-35392 Giessen, Germany.
authors.forename: Peter
authors.initials: P
authors.lastname: Kämpfer
authors.affiliation: Yenepoya Research Center, Yenepoya University, University Road, Deralakatee, Mangalore, Karnataka State, India.
authors.forename: A B
authors.initials: AB
authors.lastname: Arun
authors.affiliation: Department of Soil & Environmental Sciences, College of Agriculture and Natural Resources, National Chung Hsing University, Taichung, Taiwan, ROC.
authors.forename: Chiu-Chung
authors.initials: CC
authors.lastname: Young
authors.affiliation: Institut für Bakteriologie, Mykologie und Hygiene, Veterinärmedizinische Universität, A-1210 Wien, Austria.
authors.forename: Hans-Jürgen
authors.initials: HJ
authors.lastname: Busse
authors.affiliation: Institut für Bakteriologie, Mykologie und Hygiene, Veterinärmedizinische Universität, A-1210 Wien, Austria.
authors.forename: Johannes
authors.initials: J
authors.lastname: Kassmannhuber
authors.affiliation: Marine Microbiology Group, Institut Mediterrani d'Estudis Avançats (CSIC-UIB), C/Miquel Marqués 21, 07190 Esporles, Spain.
authors.forename: Ramon
authors.initials: R
authors.lastname: Rosselló-Móra
authors.affiliation: Environmental Microbiology, Eawag, Ueberlandstrasse 133, CH-8600 Dübendorf, Switzerland.
authors.forename: Birgit
authors.initials: B
authors.lastname: Geueke
authors.affiliation: Yenepoya Research Center, Yenepoya University, University Road, Deralakatee, Mangalore, Karnataka State, India.
authors.forename: P D
authors.initials: PD
authors.lastname: Rekha
authors.affiliation: Laboratory of Microbiology, Department of Seafood Science, National Kaohsiung Marine University, Kaohsiung, Taiwan, ROC.
authors.forename: Wen-Ming
authors.initials: WM
authors.lastname: Chen
mesh_terms: D001482:Base Composition; D004269:DNA, Bacterial / Q000235:genetics; D005227:Fatty Acids / Q000378:metabolism; D045482:Hot Springs / Q000382:microbiology*; D008969:Molecular Sequence Data; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D042301:Sphingomonadaceae / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification* / Q000378:metabolism; D013624:Taiwan
chemical_list: D004269:DNA, Bacterial; D005227:Fatty Acids; D012336:RNA, Ribosomal, 16S