Geographic distribution and genetics of killer phenotypes for the yeast Pichia kluyveri across the United States
Article Abstract:
Sixty one strains of Pichia kluyveri gathered from a broad geographic range across the US were tested for their ability to kill 71 other strains of yeast. The results showed that 69% of the P. kluyveri strains displayed killing activity. Genetic analysis showed that the variability in killer activity within localities is similar to the variablity across the continent, indicating that the species is polymorphic for killer types. Furthermore, the killer phenotype is controlled by several epistatic nuclear genes. There is evidence to suggest that killer toxin production has a role in exclusion of other yeast from particular habitats.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1992
User Contributions:
Comment about this article or add new information about this topic:
Dehydrogenases involved in the conversion of succinate to 4-hydroxybutanoate by Clostridium kluyveri
Article Abstract:
The results of C-13 nuclear magnetic resonance studies of the metabolic end products of growth and the detection of dehydrogenase activities involved in the conversion of succinate to 4-hydroxybutanoate (succinic semialdehyde dehydrogenase and 4-hydroxybutanoate dehydrogenase) support a pathway of succinate fermentation to acetate and butanoate in clostridium kluyveri. Succinate is used by C. kluyveri as an electron acceptor for the reducing equivalents generated from the ATP producing oxidation of ethanol.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1993
User Contributions:
Comment about this article or add new information about this topic:
Styrene formation by the decompostion by Pichia carsonii of trans-cinnamic acid added to a ground fish product
Article Abstract:
A sample of chikuwa fish emitting a petroleum-like odor was analyzed by gas chromatography, and showed the presence of styrene. Microbiological procedures were able to isolate two strains of Pichia carsonii designated as CHI and ITA. Further biochemical analysis revealed that styrene was formed by CHI and ITA from cinnamic acid contained in food additive P. Since the yeast was also isolated from a cold room, it was concluded that the food was contaminated during the thawing process.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1992
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Inheritance and distribution of trichome phenotypes in Datura wrightii. Base composition of Coffea AFLP sequences and their conservation within the genus
- Abstracts: Nest initiation and clutch size of Great Blue Herons on the Mississippi River in relation to the 1993 flood. Responses of egg-laying Pied Flycatchers to experimental changes in clutch size: a re-examination
- Abstracts: Characterization of interpopulation genetic variability in three hybrid maize populations. Physical mapping of rRNA genes in Medicago sativa and M. glomerata by fluorescent in situ hybridization
- Abstracts: Comparison of selected methods for the enumeration of fecal coliforms and Escherichia coli in shellfish. Three-year study to assess human enteric viruses in shellfish
- Abstracts: Geographical structure and host specificity in bacteria and the implications for tracing the source of coliform contamination