- Volume 60, Issue 7, 2010
Volume 60, Issue 7, 2010
- New Taxa
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- Proteobacteria
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Shewanella fodinae sp. nov., isolated from a coal mine and from a marine lagoon
Strains JC15T and JC19 were isolated from samples collected from different locations in India, including a coal mine and a marine lagoon. Both strains were Gram-stain-negative rods, motile by means of a single polar flagellum, catalase- and oxidase-positive, and hydrolysed casein, produced H2S and showed β-haemolysis. Strain JC15T grew optimally at pH 6 (range pH 5–8) while strain JC19 grew optimally at pH 7 (range pH 6-9) and both had a growth temperature optimum of 30–37 °C (range 22–40 °C). Both strains could grow chemo-organoheterotrophically and chemolithoautotrophically. Neither strain required NaCl for growth and both could tolerate up to 9 % (w/v) NaCl, with optimum growth at 5 % NaCl. Vitamin B12 was required as a growth factor by both strains. The major fatty acids were iso-C15 : 0, C17 : 1 ω8c and iso-C13 : 0 3-OH. The DNA G+C contents of strains JC15T and JC19 were 53.6 and 54.3 mol%, respectively. A phylogenetic tree based on 16S rRNA gene sequence analysis showed that strains JC15T and JC19 were most closely related to Shewanella haliotis DW01T (approximately 94 % sequence similarity) and to other members of the genus Shewanella. Genomic relatedness (DNA–DNA hybridization) between strains JC15T and JC19 is 88 %. On the basis of phenotypic and molecular genetic evidence, strain JC15T represents a novel species of the genus Shewanella, for which the name Shewanella fodinae sp. nov. is proposed. The type strain is JC15T (=CCUG 57102T =NBRC 105216T =KCTC 22506T).
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Oceanicola nitratireducens sp. nov., a marine alphaproteobacterium isolated from the South China Sea
More LessA Gram-negative, non-motile, short-rod-shaped bacterial strain (JLT1210T) that accumulates poly-β-hydroxybutyrate granules was isolated from the Beibu Gulf in the South China Sea. Cells have polar or subpolar flagella. Phylogenetic analyses based on 16S rRNA gene sequences showed that the strain belongs to the genus Oceanicola in the order Rhodobacterales, class Alphaproteobacteria. The closest neighbours were Oceanicola nanhaiensis SS011B1-20T (96.5 % similarity) and Oceanicola batsensis HTCC2597T (96.4 %). The predominant respiratory ubiquinone of strain JLT1210T was Q-10 and the DNA G+C content was 72.8 mol%. Evidence from genotypic, chemotaxonomic and phenotypic data shows that strain JLT1210T represents a novel species of the genus Oceanicola, for which the name Oceanicola nitratireducens sp. nov. is proposed; the type strain is JLT1210T (=LMG 24663T=CGMCC 1.7292T).
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Sphingopyxis soli sp. nov., isolated from landfill soil
More LessA Gram-negative, aerobic, rod-shaped, motile, oxidase-positive, catalase-negative bacterium, designated strain BL03T, was isolated from landfill soil in Pohang, Republic of Korea. Colonies on Luria–Bertani agar plates were yellow. The strain grew in the presence of 0–3 % (w/v) NaCl, at 15–42 °C and at pH 5.0–9.5. The predominant ubiquinone was Q-10, and the major cellular fatty acids were C17 : 1 ω6c, C15 : 0 2-OH and C18 : 1 ω7c. Polar lipids detected were phosphatidylmonomethylethanolamine, diphosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol, sphingoglycolipid and an unknown glycolipid. Spermidine was identified as the major polyamine component. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain BL03T belongs to the genus Sphingopyxis with high sequence similarity to Sphingopyxis taejonensis JSS54T (97.8 %), Sphingopyxis alaskensis RB2256T (97.4 %) and Sphingopyxis chilensis S37T (96.9 %). Levels of DNA–DNA relatedness between strain BL03T and the above three type strains were only 10.3–40.3 %. The DNA G+C content of strain BL03T was 65.9 mol%. Based on the data presented, strain BL03T is considered to represent a novel species of the genus Sphingopyxis, for which the name Sphingopyxis soli sp. nov. is proposed. The type strain is BL03T (=KCTC 22405T =JCM 15910T).
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- Eukaryotic Micro-Organisms
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Wickerhamomyces patagonicus sp. nov., an ascomycetous yeast species from Patagonia, Argentina
More LessEight strains of a novel yeast species were isolated from tree saps of ‘Coihue’ (Nothofagus dombeyi, Nothofagaceae) and glacial meltwater (Castaño Overo River) in the Nahuel Huapi National Park, Patagonia, Argentina. The sequences of the D1/D2 domains of the large subunit of the rRNA gene showed that this novel yeast species belongs to the Wickerhamomyces genus (Order Saccharomycetales, Family Wickerhamomycetaceae). The closest related species were Candida ponderosae and Wickerhamomyces chambardii. Wickerhamomyces patagonicus sp. nov. is proposed to accommodate these novel strains, with the type strain CRUB 1724T (=CBS 11398T =JCM 16381T).
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Candida laoshanensis sp. nov. and Candida qingdaonensis sp. nov., anamorphic, ascomycetous yeast species isolated from decayed wood
More LessDuring a study of newly isolated yeast strains utilizing d-xylose as sole carbon source, eight strains, isolated from decayed wood, were found to represent two novel anamorphic, ascomycetous yeast species based on sequence analysis of the 26S rDNA D1/D2 domain and internal transcribed spacer region, and phenotypic characterization. The names Candida laoshanensis sp. nov. (type strain MLRW 6-2T=AS 2.4030T=CBS 11389T) and Candida qingdaonensis sp. nov. (type strain MLRW 7-1T=AS 2.4031T=CBS 11390T) are proposed for these two novel species; the closest relatives of the two novel species are Candida pomicola and Candida marilandica, respectively.
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Yeasts associated with the curculionid beetle Xyloterinus politus: Candida xyloterini sp. nov., Candida palmyrensis sp. nov. and three common ambrosia yeasts
More LessSeven yeast strains were isolated from the body surface and galleries of Xyloterinus politus, the ambrosia beetle that attacks black oak trees. Based on rDNA sequence comparisons and other taxonomic characteristics, five of the strains were identified as members of the species Saccharomycopsis microspora, Wickerhamomyces hampshirensis and Candida mycetangii, which have been reported previously as being associated with insects. The remaining two yeast strains were proposed as representatives of two novel species, Candida xyloterini sp. nov. (type strain ATCC 62898T=CBS 11547T) and Candida palmyrensis sp. nov. (type strain ATCC 62899T=CBS 11546T). C. xyloterini sp. nov. is a close sister taxon to Ogataea dorogensis and assimilates methanol as a sole carbon source but lacks ascospores. On the other hand, C. palmyrensis sp. nov. is phylogenetically distinct from any other ambrosia yeast reported so far. The species was placed near Candida sophiae-reginae and Candida beechii based on DNA sequence analyses, but neither of these were close sister taxa to C. palmyrensis sp. nov.
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- Taxonomic Note
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Proposal of Heliobacteriaceae fam. nov.
More LessThe family name Heliobacteriaceae is not validly published. The purpose of this note is to provide a description of this family in accordance with the Rules of the Bacteriological Code (1990 Revision).
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Sinorhizobium versus Ensifer: may a taxonomy subcommittee of the ICSP contradict the Judicial Commission?
More LessIn response to a Request for an Opinion, the Judicial Commission (Opinion 84) confirmed the earlier synonym, Ensifer, as the correct name for the genus better known as Sinorhizobium. The Judicial Commission considered that this decision would not cause sufficient confusion to justify the conservation of the latter name. The Subcommittee on the Taxonomy of Agrobacterium and Rhizobium of the International Committee on Systematics of Prokaryotes (ICSP) publicly disagreed with this conclusion. Was it justified in doing this?
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Volumes and issues
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Volume 74 (2024)
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Volume 73 (2023)
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Volume 72 (2022 - 2023)
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Volume 71 (2020 - 2021)
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Volume 70 (2020)
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Volume 69 (2019)
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Volume 68 (2018)
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Volume 67 (2017)
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Volume 66 (2016)
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Volume 65 (2015)
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Volume 64 (2014)
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Volume 63 (2013)
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Volume 62 (2012)
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Volume 61 (2011)
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Volume 60 (2010)
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Volume 59 (2009)
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Volume 58 (2008)
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Volume 57 (2007)
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Volume 56 (2006)
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Volume 55 (2005)
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Volume 54 (2004)
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Volume 53 (2003)
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Volume 52 (2002)
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Volume 51 (2001)
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Volume 50 (2000)
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Volume 49 (1999)
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Volume 48 (1998)
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Volume 47 (1997)
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Volume 46 (1996)
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Volume 45 (1995)
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Volume 44 (1994)
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Volume 43 (1993)
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Volume 42 (1992)
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Volume 41 (1991)
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Volume 40 (1990)
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Volume 39 (1989)
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Volume 38 (1988)
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Volume 37 (1987)
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Volume 36 (1986)
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Volume 35 (1985)
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Volume 34 (1984)
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Volume 33 (1983)
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Volume 32 (1982)
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Volume 31 (1981)
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Volume 30 (1980)
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Volume 29 (1979)
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Volume 28 (1978)
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Volume 27 (1977)
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Volume 26 (1976)
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Volume 25 (1975)
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Volume 24 (1974)
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Volume 23 (1973)
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Volume 22 (1972)
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Volume 21 (1971)
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Volume 20 (1970)
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Volume 19 (1969)
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Volume 18 (1968)
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Volume 17 (1967)
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Volume 16 (1966)
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Volume 15 (1965)
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Volume 14 (1964)
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Volume 13 (1963)
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Volume 12 (1962)
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Volume 11 (1961)
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Volume 10 (1960)
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Volume 9 (1959)
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Volume 8 (1958)
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Volume 7 (1957)
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Volume 6 (1956)
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Volume 5 (1955)
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Volume 4 (1954)
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Volume 3 (1953)
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Volume 2 (1952)
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Volume 1 (1951)