บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Improvement of biocontrol yeast activity against postharvest pathogens : recent experiences

Lima G.; Castoria R.; Spina A.M.; Caputo L. and De Curtis F.

5th International Postharvest Symposium . Volume of Abstract . Verona, Italy 6-11 June 2004, p.104

2004

บทคัดย่อ

Improvement of biocontrol yeast activity against postharvest pathogens : recent experiences Control of postharvest diseases of fruits and vegetables by means of biocontrol agents (BCA) applied alone under commercial conditions resulted frequently unsatisfactory if compared with protection displayed by synthetic fungicides. This lack of consistence is also due to the scarcity of research o­n both formulation and possible integration of BCA with other control strategies.

Here we report some recent research experiences aimed at enhancing and stabilising the activity of the biocontrol yeasts Rhodotorula glutines, isolate LS11, Cryptococus laurentii, isolate LS28, and Aureobasidium pullulans, isolate LS30, by combining them with different adjuvants as food-grade additives, antioxidants or low dosage of fungicides. Several compounds among food additives or antioxidants consistently enhanced the antagonistic activity of the BCA against postharvest fungal pathogens in small-scale experiments. Moreover, the activity of antagonists was significantly improved combining them with a low dosage of synthetic fungicides o­n apples in semi-commercial conditions. The improvement of effectiveness of BCA in combined treatments resulted additive or synergistic when compared with activity of BCA and adjuvants applied separately.

The potential application of selected compounds in formulations of yeast-based biofungicides as well as the implications related to combinations of BCA with other control strategies are discussed.