title: Detection of polygalacturonase, pectin-lyase and pectin-esterase activities in a Saccharomyces cerevisiae strain.
abstract: The catalytic capacity of several excreted pectinolytic enzymes obtained from various yeast strains was examined using in vivo and biochemical techniques. Of the 33 yeast strains studied, 30 were isolated from champagne wine during alcoholic fermentation. Only one yeast strain was found to excrete pectinolytic enzymes and was identified as Saccharomyces cerevisiae and designated SCPP. Pulsed-field gel electrophoresis and the polymerase chain reaction technique were used to characterize further this specific strain. Three types of pectinolytic enzymes were found to be excreted by SCPP: polygalacturonase, pectin-lyase and pectin-esterase. These enzymes allow pectin hydrolysis during cell growth.
authors.affiliation: Université de Reims, Faculté des Sciences, Laboratoire de Microbiologie Générale, France.
authors.forename: A
authors.initials: A
authors.lastname: Gainvors
authors.forename: V
authors.initials: V
authors.lastname: Frézier
authors.forename: H
authors.initials: H
authors.lastname: Lemaresquier
authors.forename: C
authors.initials: C
authors.lastname: Lequart
authors.forename: M
authors.initials: M
authors.lastname: Aigle
authors.forename: A
authors.initials: A
authors.lastname: Belarbi
mesh_terms: D001483:Base Sequence; D002265:Carboxylic Ester Hydrolases / Q000378:metabolism*; D008969:Molecular Sequence Data; D011096:Polygalacturonase / Q000378:metabolism*; D011133:Polysaccharide-Lyases / Q000378:metabolism*; D012441:Saccharomyces cerevisiae / Q000201:enzymology*
chemical_list: D002265:Carboxylic Ester Hydrolases; C022323:pectinesterase; D011096:Polygalacturonase; D011133:Polysaccharide-Lyases; C027349:pectin lyase