ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Biological control of Botrytis cinerea on cold stored dutch white cabbage.

Leifert, C.; Sigee, D. C.; Epton, H. A. S.;

Recent advances in Botrytis research. Proceedings of the 10th International Botrytis symposium, Heraklion, Crete, Greece, 5-10 April 1992 Year: 1992 Pages: 201-205 Ref: 5 ref.

1992

บทคัดย่อ

Spores of B. cinerea inoculated onto non-heat-treated discs of white cabbage failed to germinate and no spoilage of leaf discs occurred for periods of up to 3 months. When leaf discs were wounded in the centre with a sterile pipette tip some spores germinated in the vicinity of the wound but again failed to establish and cause spoilage on the leaf disc. It is suggested that ths indicates that plant resistance mechanisms are active, preventing spore germination and fungal establishment. Heating of cabbage discs resulted in rapid fungal growth, and 14 d after inoculation the fungal mycelium covered the whole disc. It is suggested that the heat treatment inactivates the plant's resistance mechanism. Fungal establishment could be prevented on heated discs by dipping discs into suspensions of Serratia and Pseudomonas which showed in vitro antagonism in plate assays. Following inoculation with some antagonistic Serratia and Pseudomonas strains leaf discs remained without signs of spoilage until the end of the experiments, after 2 months.