title: Relationship between conidial enzymes and germination of the apple blue mold, Penicillium expansum.
abstract: The relationship between conidial enzymes of Penicillium expansum and spore germination was examined. The activities of xylanase and pectinase, but not of cellulase and amylase, were detected in the conidia. The levels of xylanase and pectinase were greatly enhanced by xylan and pectin as respective carbon sources in the basal medium. No conidia germinated in the basal medium without a carbon source. The type of carbon source and the enzyme levels of the conidia did not affect the rate of germination. However, a relationship was found between the enzyme levels and the elongation of the germ tubes.
authors.affiliation: Department of Life and Bioresource Science, Chiba University, Matsudo-city, Japan.
authors.forename: Soichiro
authors.initials: S
authors.lastname: Kimura
authors.forename: Seigo
authors.initials: S
authors.lastname: Amachi
authors.forename: Nobuko
authors.initials: N
authors.lastname: Ohno
authors.forename: Haruo
authors.initials: H
authors.lastname: Takahashi
authors.forename: Hirofumi
authors.initials: H
authors.lastname: Shinoyama
authors.forename: Takaaki
authors.initials: T
authors.lastname: Fujii
mesh_terms: D010407:Penicillium / Q000201:enzymology / Q000254:growth & development / Q000502:physiology*; D011096:Polygalacturonase / Q000378:metabolism*; D043325:Xylan Endo-1,3-beta-Xylosidase; D014995:Xylosidases / Q000378:metabolism*
chemical_list: D014995:Xylosidases; D011096:Polygalacturonase; D043325:Xylan Endo-1,3-beta-Xylosidase