บทคัดย่องานวิจัย

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Influence of Ca-ions on polygalacturonase activity and apple fruit infection by Penicillium expansum Link.

Popushoi, I. S.; Todirash, V. A.; Kogan, E. D.;

Buletinul Academiei de Stiinte a Republicii Moldova. Stiinte Biologice si Chimice Year: 1993 Issue: No. 5 Pages: 33-35 Ref: 9 ref.

1993

บทคัดย่อ

Influence of Ca-ions on polygalacturonase activity and apple fruit infection by Penicillium expansum Link.

Golden Delicious apples were wound-inoculated with a conidial suspension of P. expansum in solutions with varying concn of CaCl2. The results revealed that the decay intensity, caused by inoculation, decreased with increasing Ca concn. It was shown that the polygalacturonase produced by P. expansum did not readily hydrolyse Ca-pectate and it is concluded that the Ca ions affect the structure of the plant cell walls making them less accessible to cell wall degrading enzymes produced by fungal pathogens.