- Volume 58, Issue 9, 2008
Volume 58, Issue 9, 2008
- New Taxa
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- Other Gram-Positive Bacteria
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Sporosarcina antarctica sp. nov., a psychrophilic bacterium isolated from the Antarctic
A Gram-positive, psychrophilic, rod-shaped bacterium, designated strain N-05T, was isolated from soil samples collected off King George Island, west Antarctica (6 ° 13′ 31″ S 5 ° 57′ 08″ W). Phylogenetic analysis based on 16S rRNA gene sequences showed that strain N-05T was related to members of the genus Sporosarcina and had highest 16S rRNA gene sequence similarity with the type strain of Sporosarcina macmurdoensis (98.0 %). The temperature range for growth of strain N-05T was 0–23 °C, with optimum growth occurring at 17–18 °C and approximately pH 6.0–8.0. Strain N-05T had MK-7 as the major menaquinone and anteiso-C15 : 0 and C16 : 1 ω7c alcohol as major fatty acids. The genomic DNA G+C content was 39.2 mol%. On the basis of phenotypic characteristics, phylogenetic analysis and DNA–DNA relatedness data, strain N-05T is considered to represent a novel species of the genus Sporosarcina, for which the name Sporosarcina antarctica is proposed. The type strain is N-05T (=CGMCC 1.6503T=JCM 14646T).
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Clostridium amylolyticum sp. nov., isolated from H2-producing UASB granules
Lei Song and Xiuzhu DongA Gram-stain-positive, strictly anaerobic, mesophilic, amylolytic, rod-shaped bacterium, designated strain SW408T, was isolated from a laboratory-scale H2-producing upflow anaerobic sludge blanket reactor. The strain grew at 24–45 °C (no growth at or below 22 °C or at or above 47 °C), with optimum growth at 37 °C. The pH range for growth was 4.0–9.0 (no growth at or below pH 3.6 or at or above pH 9.3), with optimum growth at pH 7.0. Starch, cellobiose, glucose, fructose, galactose, lactose, maltose, mannose, ribose and sucrose supported growth. The major end products from glucose fermentation were ethanol, acetate, hydrogen and carbon dioxide. Abundant H2 was produced from starch fermentation. The DNA G+C content was 33.1 mol% (T m method). Phylogenetic analysis based on 16S rRNA gene sequence analysis showed that the bacterium represents a previously unrecognized species within Clostridium rRNA cluster I and is most closely related to the type strain of Clostridium frigidicarnis (94.9 % similarity). On the basis of phenotypic, genotypic and phylogenetic characteristics, strain SW408T was identified as a representative of a novel species of the genus Clostridium, for which the name Clostridium amylolyticum sp. nov. is proposed. The type strain is SW408T (=JCM 14823T=AS 1.5069T=CGMCC 1.5069T).
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Paenibacillus konsidensis sp. nov., isolated from a patient
A Gram-positive, rod-shaped bacterium, designated strain LBYT, was isolated from the blood of a Korean patient. The organism could not be identified based on conventional clinical microbiological methods. 16S rRNA gene sequencing and phylogenetic analysis revealed that it belonged to the genus Paenibacillus, but was distinct from recognized Paenibacillus species. Strain LBYT was related most closely to the type strains of Paenibacillus macerans and Paenibacillus popilliae, with 16S rRNA gene sequence similarities of 96.2 and 95.4 %, respectively. The major fatty acids of strain LBYT were anteiso-C15 : 0 (43.8 %), C16 : 0 (10.4 %), iso-C16 : 0 (10.3 %), iso-C15 : 0 (9.2 %) and anteiso-C17 : 0 (8.3 %). On the basis of biochemical characteristics, fatty acid composition and comparative 16S rRNA gene sequence analysis, strain LBYT is considered to represent a novel species of the genus Paenibacillus, for which the name Paenibacillus konsidensis sp. nov. is proposed. The type strain is LBYT (=ABB-ID-KSY9T=KCTC 13165T=JCM 14798T).
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Halolactibacillus alkaliphilus sp. nov., a moderately alkaliphilic and halophilic bacterium isolated from a soda lake in Inner Mongolia, China, and emended description of the genus Halolactibacillus
More LessA moderately alkaliphilic and halophilic bacterium was isolated from sediment of Xiarinaoer soda lake located in the Inner Mongolia municipality. This bacterium, designated strain H-5T, was a facultative anaerobe, Gram-positive, rod-shaped and non-motile. Strain H-5T grew in complex medium with 0.5–30 % (w/v) NaCl and at pH 7.5–13. The cell wall peptidoglycan contained meso-diaminopimelic acid. The major isoprenoid quinones found in this strain were MK-9H4 and MK-9H2, and the major cellular fatty acids were C16 : 0 and anteiso-C13 : 0. The DNA G+C content of strain H-5T was 38.3 mol%. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain H-5T was located in the genus Halolactibacillus. The 16S rRNA gene sequence similarities between strain H-5T and the type strains of the two recognized species of the genus Halolactibacillus were 98.6 and 98.0 %. The DNA–DNA relatedness values between strain H-5T and the two type strains were 19 and 5 %. Based on the phenotypic and chemotaxonomic data, the phylogenetic analysis and genomic distinctiveness, strain H-5T is considered to represent a novel species of the genus Halolactibacillus, for which the name Halolactibacillus alkaliphilus is proposed. The type strain is H-5T (=CGMCC AS 1.6843T=NBRC 103919T).
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Reclassification of the genus Leuconostoc and proposals of Fructobacillus fructosus gen. nov., comb. nov., Fructobacillus durionis comb. nov., Fructobacillus ficulneus comb. nov. and Fructobacillus pseudoficulneus comb. nov.
More LessA taxonomic study was made of the genus Leuconostoc. The species in the genus were divided into three subclusters by phylogenetic analysis based on the 16S rRNA gene sequences. The three subclusters were the Leuconostoc mesenteroides subcluster (comprising L. carnosum, L. citreum, L. gasicomitatum, L. gelidum, L. inhae, L. kimchii, L. lactis, L. mesenteroides and L. pseudomesenteroides), the L. fructosum subcluster (L. durionis, L. ficulneum, L. fructosum and L. pseudoficulneum) and the L. fallax subcluster (L. fallax). Phylogenetic trees based on the sequences of the 16S–23S rRNA gene intergenic spacer region, the rpoC gene or the recA gene indicated a good correlation with the phylogenetic tree based on 16S rRNA gene sequences. The species in the L. fructosum subcluster were morphologically distinguishable from the species in the L. mesenteroides subcluster and L. fallax as species in the L. fructosum subcluster had rod-shaped cells. In addition, the four species in the L. fructosum subcluster needed an electron acceptor for the dissimilation of d-glucose and produced acetic acid from d-glucose rather than ethanol. On the basis of evidence presented in this study, it is proposed that the four species in the L. fructosum subcluster, Leuconostoc durionis, Leuconostoc ficulneum, Leuconostoc fructosum and Leuconostoc pseudoficulneum, should be transferred to a novel genus, Fructobacillus gen. nov., as Fructobacillus durionis comb. nov. (type strain D-24T=LMG 22556T=CCUG 49949T), Fructobacillus ficulneus comb. nov. (type strain FS-1T=DSM 13613T=JCM 12225T), Fructobacillus fructosus comb. nov. (type strain IFO 3516T=DSM 20349T=JCM 1119T=NRIC 1058T) and Fructobacillus pseudoficulneus comb. nov. (type strain LC-51T=DSM 15468T=CECT 5759T). The type species of the genus Fructobacillus is Fructobacillus fructosus gen. nov., comb. nov.. No significant physiological and biochemical differences were found between the species in the L. mesenteroides subcluster and L. fallax in the present study and thus L. fallax remains as a member of the genus Leuconostoc.
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- International Committee On Systematics Of Prokaryotes
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- Taxonomic Note
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Nomenclature and taxonomy of halophilic archaea – comments on the proposal by DasSarma and DasSarma for nomenclatural changes within the order Halobacteriales
More LessP. DasSarma & S. DasSarma [Saline Systems 4 (2008), 5] have proposed far-reaching changes in the nomenclature and taxonomy of the halophilic archaea of the order Halobacteriales, family Halobacteriaceae. While re-evaluation of the taxonomic classification of strains within the group is to be encouraged, the nomenclatural changes proposed are in violation of the General Considerations, Principles and Rules of the International Code of Nomenclature of Bacteria.
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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)