Novel strain of the yeast candida sake (saito and ota) van...

C - Chemistry – Metallurgy – 12 – N

Patent

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C12N 1/16 (2006.01) A01N 63/04 (2006.01) A23B 7/155 (2006.01)

Patent

CA 2191252

There is disclosed a novel strain of the yeast Candida sake (Sai?o and Ota) van Uden and Buckley and its use as biological control agents for fungal diseases of postharvested fruits. Said strain, deposited with the number CECT-10817, is used as antagonist of fungi responsible for the fruit rot after it has been harvested and during the storage period. The effectiveness of said antagonist is very high and is comparable to that of antifungal chemical products widly used. Said activity is intensively elicited particurarly in low temperature storage conditions and in low oxygen environments. The antogonist is efficient to combat rot caused by, among other micro-organisms, the fungi of the species Botrytis cinerea, Penicillium expansum and Rhizopus nigricans.

L'invention décrit une nouvelle souche de la levure Candida sake (Saito et Ota) van Uden et Buckley et son utilisation en tant qu'agent de lutte biologique contre des maladies fongiques de fruits après récolte. Ladite souche, déposée sous le numéro CECT-10817, est utile comme antagoniste des champignons responsables de la pourriture du fruit après sa récolte et pendant la durée de stockage. L'efficacité dudit antagoniste est très élevée et comparable à celle de produits chimiques antifongiques communément utilisés. Cette activité se manifeste avec une intensité toute particulière dans les conditions de stockage à basse température et dans des environnements pauvres en oxygène. L'antagoniste est efficace pour combattre la pourriture provoquée par, entre autres micro-organismes, les champignons des espèces Botrytis cinerea, Penicillium expansum et Rhizopus nigricans.

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