Aureobasidium pullulansas a biocontrol agent of postharvest pathogens of apples in Uruguay

Autor:	M. Fernanda Garat, Gabriela Garmendia, Silvana Vero, M. Belén González, Michael Wisniewski
Rok vydání:	2009
Předmět:	Iprodione biology Microorganism Biological pest control Cold storage biology.organism_classification Microbiology Fungicide Aureobasidium pullulans Horticulture Human health chemistry.chemical_compound chemistry Insect Science Postharvest sense organs Agronomy and Crop Science
Zdroj:	Biocontrol Science and Technology. 19:1033-1049
ISSN:	1360-0478 0958-3157
DOI:	10.1080/09583150903277738
Popis:	Aureobasidium pullulans was the microorganism most frequently recovered from the surface of apple fruit (cv. Red Delicious) stored in commercial cold chambers for 6 months. In the present work, 10 isolates of Aureobasidium pullulans were assayed to determine if they could control blue and grey mold disease of apple during cold storage. Although nine of 10 isolates, significantly reduced the percentage of decayed wounds when compared to the control, one of them, designated isolate ApB, showed the highest levels of protection. ApB was able to grow in a wide range of temperatures lower than 35°C, which is an important human health safety factor. ApB was resistant to thiabendazole, iprodione and imazalil, the most commonly commercially applied fungicides in postharvest treatment of apples in Uruguay. Regarding the mechanisms of action of the selected biocontrol agent, lytic enzymes did not seem to play a central role. ApB depleted iron from nutrient media, which may be an important aspect of its abil...
Databáze:	OpenAIRE
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