Relationship between conidial enzymes and germination of the apple blue mold, Penicillium expansum.
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.
Kimura
Soichiro
S
Department of Life and Bioresource Science, Chiba University, Matsudo-city, Japan.
Amachi
Seigo
S
Ohno
Nobuko
N
Takahashi
Haruo
H
Shinoyama
Hirofumi
H
Fujii
Takaaki
T
D010407:Penicillium / Q000201:enzymology / Q000254:growth & development / Q000502:physiology*; D011096:Polygalacturonase / Q000378:metabolism*; D043325:Xylan Endo-1,3-beta-Xylosidase; D014995:Xylosidases / Q000378:metabolism*
D014995:Xylosidases; D011096:Polygalacturonase; D043325:Xylan Endo-1,3-beta-Xylosidase