[Isolation and characterization of a flocculating mutant of Saccharomyces diastaticus].
A flocculating strain of Saccharomyces diastaticus NRRL2416 was isolated after ethidium bromide mutagenesis and density gradient separation. Flocculation did not change the general characteristics of the strain. Flocculation was better on maltodextrin-containing media than on others. It was found to be calcium-dependent and sensitive to growth conditions. The deflocculating effects of some sugars suggested that mannose may be involved in the mechanism of flocculation, as for strains of the FLO1 phenotypic group.
Guiraud
J P
JP
Génie Biologique et Science des Aliments, Microbiologie industrielle Université Montpellier II, France.
Fontana
A
A
D003470:Culture Media; D004492:Edetic Acid / Q000494:pharmacology; D004996:Ethidium / Q000494:pharmacology*; D005285:Fermentation / Q000187:drug effects; D005427:Flocculation; D005087:Glucan 1,4-alpha-Glucosidase / Q000378:metabolism; D006026:Glycoside Hydrolases / Q000378:metabolism; D066298:In Vitro Techniques; D016296:Mutagenesis; D012440:Saccharomyces / Q000187:drug effects / Q000302:isolation & purification* / Q000378:metabolism; D043324:beta-Fructofuranosidase
D003470:Culture Media; D004492:Edetic Acid; D006026:Glycoside Hydrolases; D043324:beta-Fructofuranosidase; D005087:Glucan 1,4-alpha-Glucosidase; D004996:Ethidium
Isolement et caractérisation d'un mutant floculant de Saccharomyces diastaticus.