- Volume 48, Issue 3, 1998
Volume 48, Issue 3, 1998
- Obituary
-
- Validation List
-
- Notification List
-
- Systematics Of Yeasts
-
-
-
Structure and genetic stability of mitochondrial genomes vary among yeasts of the genus Saccharomyces
More LessSeveral yeast species/isolates belonging to the genus Saccharomyces were examined for the organization of their mtDNAs and ability to generate petite mutants. A general characteristic for all of the mtDNAs tested was that they were very A+T-rich. However, restriction patterns and inducibility of petite mutations revealed a great diversity in the organization and genetic behaviour of mtDNAs. One group of yeasts, Saccharomyces sensu stricto, contains mtDNA ranging in size from 64 to 85 kb. mtDNAs from these yeasts contain a high number of restriction sites that are recognized by the enzymes Haelll and Mspl, which cut specifically in G+C clusters. There are three to nine ori/rep sequences per genome. These yeasts spontaneously generate respiration deficient mutants. Ethidium bromide (Et-Br), at low concentrations, induces a majority of cells to give rise to petites. A second group of yeasts, Saccharomyces sensu lato, contains smaller mtDNAs, ranging in size from 23 to 48 kb, and probably only a few intergenic G+C clusters and no ori/rep sequences. These yeasts also generate petite clones spontaneously, but Et-Br, even when present at high concentrations, does not substantially increase the frequency of petites. In most petite clones from these yeasts only a small fragment of the wild-type molecule is retained and apparently multiplied. A third group, represented by Saccharomyces kluyveri, does not give rise to petite mutants either spontaneously or after induction.
-
-
-
-
Bullera penniseticola sp. nov. and Kockovaella sacchari sp. nov., two new yeast species isolated from plants in Thailand
More LessTwo strains of ballistoconidium-forming yeasts, isolated from plants collected in the south-east seacoast of Bangkok, Thailand, were described. The strains (K-272Tand K-337T) were assigned to the genera Bullera and Kockovaella, respectively, based on morphological and chemotaxonomical characteristics. Phylogenetically, strain K-272Tis close to Bullera hannae, and strain K-337Tis close to Kockovaella thailandica and Kockovaella imperatae. These two strains represent new species based on DNA-DNA reassociation experiments.Bullera penniseticola Takashima et Nakase sp. nov. and Kockovaella sacchari Takashima et Nakase sp. nov. are proposed for K-272T(= JCM 9857T) and K-337T(= JCM 9858T), respectively.
-
- International Committee On Systematic Bacteriology
-
-
-
Taxonomic note: necessary correction of specific and subspecific epithets according to Rules 12c and 13b of the International Code of Nomenclature of Bacteria (1990 Revision)
More LessSpecific epithets and subspecific epithets treated as adjectives must agree in gender with the generic names (Rules 12c and 13b of the International Code of Nomenclature of Bacteria). Thirty-four cases that do not respect theses Rules are corrected.
-
-
- International Committee On Systematic Bacteriology: Requests For An Opinion
-
-
-
Proposal of strain NCIMB 13488 as neotype of Halorubrum trapanicum. Request for an Opinion
W. D. Grant, A. Oren and A. VentosaIn view of the fact that strain NRC 34021, the designated type strain of Halorubrum trapanicum, is no longer available, strain NCMIB 13488, derived from strain NRC 34021, is proposed as the neotype strain of H. trapanicum.
-
-
-
-
Rejection of the species Methanothrix soehngenii VP and the genus Methanothrix VP as nomina confusa, and transfer of Methanothrix thermophila VP to the genus Methanosaeta VP as Methanosaeta thermophila comb. nov. Request for an Opinion
More LessWe request an Opinion of the Judicial Commission regarding rejection of the species Methanothrix soehngenii VPHuser, Wuhrmann and Zehnder 1983, 439, and the genus Methanothrix VPHuser, Wuhrmann and Zehnder 1983, 439, as nomina confusa because their descriptions were based on the characterization of an impure type strain, strain OpfikonT. We also propose the transfer of Methanothrix thermophila VP Kamagata et al. 1992, 465, to the genus Methanosaeta as Methanosaeta thermophila comb. nov.
-
Volumes and issues
-
Volume 74 (2024)
-
Volume 73 (2023)
-
Volume 72 (2022 - 2023)
-
Volume 71 (2020 - 2021)
-
Volume 70 (2020)
-
Volume 69 (2019)
-
Volume 68 (2018)
-
Volume 67 (2017)
-
Volume 66 (2016)
-
Volume 65 (2015)
-
Volume 64 (2014)
-
Volume 63 (2013)
-
Volume 62 (2012)
-
Volume 61 (2011)
-
Volume 60 (2010)
-
Volume 59 (2009)
-
Volume 58 (2008)
-
Volume 57 (2007)
-
Volume 56 (2006)
-
Volume 55 (2005)
-
Volume 54 (2004)
-
Volume 53 (2003)
-
Volume 52 (2002)
-
Volume 51 (2001)
-
Volume 50 (2000)
-
Volume 49 (1999)
-
Volume 48 (1998)
-
Volume 47 (1997)
-
Volume 46 (1996)
-
Volume 45 (1995)
-
Volume 44 (1994)
-
Volume 43 (1993)
-
Volume 42 (1992)
-
Volume 41 (1991)
-
Volume 40 (1990)
-
Volume 39 (1989)
-
Volume 38 (1988)
-
Volume 37 (1987)
-
Volume 36 (1986)
-
Volume 35 (1985)
-
Volume 34 (1984)
-
Volume 33 (1983)
-
Volume 32 (1982)
-
Volume 31 (1981)
-
Volume 30 (1980)
-
Volume 29 (1979)
-
Volume 28 (1978)
-
Volume 27 (1977)
-
Volume 26 (1976)
-
Volume 25 (1975)
-
Volume 24 (1974)
-
Volume 23 (1973)
-
Volume 22 (1972)
-
Volume 21 (1971)
-
Volume 20 (1970)
-
Volume 19 (1969)
-
Volume 18 (1968)
-
Volume 17 (1967)
-
Volume 16 (1966)
-
Volume 15 (1965)
-
Volume 14 (1964)
-
Volume 13 (1963)
-
Volume 12 (1962)
-
Volume 11 (1961)
-
Volume 10 (1960)
-
Volume 9 (1959)
-
Volume 8 (1958)
-
Volume 7 (1957)
-
Volume 6 (1956)
-
Volume 5 (1955)
-
Volume 4 (1954)
-
Volume 3 (1953)
-
Volume 2 (1952)
-
Volume 1 (1951)