บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Induction of resistance to postharvest decay by the yeast biocontrol agent Candida oleophila.

Droby, S., Porat, R., Vinokur, V., Cohen, L., Weiss, B. and Daus, A.

Bulletin OILB/SROP. Volume 24, Number 3, 2001. Pages 297-302

2001

บทคัดย่อ

Induction of resistance to postharvest decay by the yeast biocontrol agent Candida oleophila.

Results of this study show that application of C. oleophila to surface wounds or to intact grapefruit elicited systemic resistance to Penicillium digitatum. The induction of resistance was pronounced already 24 h after elicitation, and was distance and concentration dependent, and was restricted to peel tissue surrounding the yeast application site. Only viable yeast cells were able to enhance fruit resistance to the pathogen. Application of C. oleophila cell suspensions to grapefruit peel tissue increased accumulation of chitinase and beta -1,3-endoglucanase protein levels as indicated by Western immunoblotting analysis. Overall, this study provides evidence that induction of resistance mechanisms against postharvest decay of citrus fruit takes place and should be considered as an important factor of a multicomponent mechanism of action of the yeast C. oleophila.