Induction of gray mold rot resistance by methyl salicylate application in strawberry fruits.
Kim MiAe, and Choi SeongJin
Journal of the Korean Society for Horticultural Science. Volume 43, Number 1, 2002. Pages 29-33.
2002
บทคัดย่อ
This study was conducted to investigate the suppressive effect of methyl salicylate (MSA) fumigation on gray mould rot (caused by Botrytis cinerea) incidence in harvested strawberry fruits. When harvested strawberry fruits were kept in humid condition in ambient temperature after inoculation with a spore and mycelia fragment suspension of gray mould fungus, MSA-treated plot showed a decrease in fruit rot incidence by one-third compared with the control. Although MSA exhibited only light inhibitory effect on fungal growth of the gray mould pathogen in vitro, the inhibitory effect on gray mould pathogen was more conspicuous on strawberry fruits. On the other hand, when MSA was applied to fruits, it was converted into salicylic acid and increased the activity of chitinase, which is one of the pathogenesis-related proteins. Thus, it was considered that not only the antifungal activity but also the disease resistance-inducing activity of MSA which caused the reduction in gray mould incidence in straw berry fruits. MSA, detected as one of the natural volatile compounds in strawberry fruits, could be applied as a non-toxic alternative to fungicide.