Zearalenone detoxification compositions and methods

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/82 (2006.01) A23L 1/015 (2006.01) A62D 3/00 (2006.01)

Patent

CA 2269098

The present invention provides a bacterial microorganism having the ability to degrade or detoxify zearalenone or derivatives or analogs of zearalenone. The present invention also provides a method for the isolation and utilization of a zearalenone-degradation gene encoding a gene product having the ability to degrade or detoxify zearalenone or derivatives or analogs of zearalenone. In another embodiment, the present invention provides for the generation of transformants into which the zearalenone-degradation gene has been introduced, thereby providing the ability to degrade or detoxify zearalenone or derivatives or analogs of zearalenone to said transformants. The present invention further provides a method for detoxification of plants pre- or post-harvest using microbes having the ability to degrade or detoxify zearalenone or derivatives or analogs of zearalenone. The invention also provides a method for detoxification of plants pre- or post-harvest using the zearalenone-degradation gene.

L'invention concerne un micro-organisme bactérien ayant la capacité de dégrader ou détoxifier la zéaralenone, des dérivés ou des analogues de celle-ci. Elle porte également sur un procédé d'isolement et d'utilisation d'un gène de dégradation de la zéaralenone, codant pour un produit génique ayant la capacité de dégrader ou de détoxifier la zéaralenone, des dérivés ou des analogues de celle-ci. Dans un autre mode de réalisation, l'invention se rapporte à la génération de transformants dans lesquels le gène de dégradation de la zéaralenone a été introduit, ce qui confère à ceux-ci la capacité de dégrader ou de détoxifier la zéaralenone, des dérivés ou des analogues de celle-ci. L'invention concerne enfin un procédé de détoxification de plantes avant ou après leur récolte au moyen de microbes ayant la capacité de dégrader ou de détoxifier la zéaralenone, des dérivés ou des analogues de celle-ci, ainsi qu'un procédé de détoxification de plantes avant ou après la récolte au moyen du gène de dégradation de la zéaralenone.

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