บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Bioassays of glucosinolate-derived isothiocyanates against postharvest pear pathogens.

Mari, M.; Iori, R.; Leoni, O.; Marchi, A.;

Plant Pathology Year: 1996 Vol: 45 Issue: 4 Pages: 753-760 Ref: 33 ref.

1996

บทคัดย่อ

Bioassays of glucosinolate-derived isothiocyanates against postharvest pear pathogens.

The effect of 6 isothiocyanates (ITCs), produced by the enzymatic hydrolysis of glucosinolates, on fungal pathogens of pear was determined. Pears were artificially inoculated through induced wounds with conidial suspensions of Botrytis cinerea, Rhizopus stolonifer, Monilinia laxa, Mucor piriformis or Penicillium expansum and were then treated with ITCs. Of the 6 ITCs tested, the ITC from glucoraphenin showed the highest effectiveness after 6 days at 20 deg C, against M. laxa, B. cinerea and M. piriformis. The effectiveness of the ITC from glucoraphenin against M. laxa was assayed in 2 further trials to test the effect of ITC concn on different concn of inoculum and to determine the duration of the curative effect of this ITC. ITC concn directly affected fungus control capacity. The highest ITC concn (3.6 mg/ml) afforded pathogen control at the highest level of pathogen concn (106 conidia/ml) after 6 days at 20 deg . Its curative effect was evident up to 40 h after inoculation.