บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Enhancement of Candida oleophila for the biocontrol of postharvest diseases of apple with Nisin.

El-Neshawy, S.; Wilson, C. L.;

Postharvest physiology, pathology and technologies for horticultural commodities: recent advances. Proceedings of an international symposium held at Agadir, Morocco, 16-21 January 1994. Year: 1995 Pages: 419-425 Ref: 17 ref.

1995

บทคัดย่อ

Enhancement of Candida oleophila for the biocontrol of postharvest diseases of apple with Nisin.

ABSTRACT :

 

Nisin, a polypeptide antibiotic produced by Streptococcus lactis [Lactococcus lactis subsp. lactis], enhanced the effectiveness of the biocontrol agent C. oleiphila in controlling rots caused by Botrytis cinerea and Penicillium expansum on Golden Delicious apples either at room temp. or in storage at 4 deg C. Apple wounds were inoculated with a suspension of the pathogen, antagonist and Nisin in various combinations and stored at room temp. After 7 days, 11% of the wounds developed rots from Botrytis and Penicillium. When 4% Nisin was added to the antagonist suspension, 22% developed rots with the antagonist alone, while 100% and 44% of the wounds developed on water control treatments. Nisin enhanced the antagonistic activity of C. oleophila populations in Petri dishes and in the wounds of apples. It inhibited spore germination of both B. cinerea and P. expansum and restricted the growth of germ tubes which favoured the antagonist C. oleophila and thus enhanced biocontrol.