บทคัดย่องานวิจัย

Control of Botrytis cinerea strains resistant to iprodione in apple with rhodotorulic acid and yeasts

Gabriela Sansone, Irma Rezza, Viviana Calvente, Delia Benuzzi and Maria Isabel Sanz de Tosetti

Postharvest Biology and Technology Volume 35, Issue 3 , March 2005, Pages 245-251

2005

บทคัดย่อ

Control of Botrytis cinerea strains resistant to iprodione in apple with rhodotorulic acid and yeasts

A Rhodotorula strain (Rhodotorula glutinis ySL 30) in combination with a siderophore was evaluated for postharvest control of a Botrytis cinerea strain resistant to iprodione o­n apple. The biocontrol yeast was less effective for the control of iprodione-resistant B. cinerea than the iprodione-sensitive B. cinerea. A combination of R. glutinis and rhodotorulic acid, a siderophore produced by yeasts belonging to Rhodotorula genus, was evaluated as a way to improve the control of the resistant strain. In experiments “in vitro”, rhodotorulic acid retarded the spore germination of the fungus, and in biocontrol experiments o­n apple wounds, the disease was more effectively controlled by the antagonistic agent in combination with the siderophore than by the antagonistic agent alone. R. glutinis reduced decay severity by 54% and R. glutinis in combination with siderophore reduced decay severity by 72%, in comparison with the non-treated control.