Agrobacterium-mediated transformation of Sclerotinia sclerotiorum

Tipo de material: Texto

TextoSeries ; Journal of MicroBiological Methods, 65(1), p.220-207, 2006Trabajos contenidos:

Welda, R. J
Colin, C. E
Ridgwaya, H. J

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Resumen: Ascospores from the phytopathogenic fungus Sclerotinia sclerotiorum were transformed to hygromycin B resistance by co-cultivation with Agrobacterium tumefaciens. Transformed spores germinated and grew on PDA supplemented with 100 ug/ml hygromycin B. The presence of mitotically stable hph gene integration at random sites in the genome was confirmed by PCR and Southern blot analysis. A transformation frequency of 8 × 10- 5 was achieved in five separate experiments. This study is the first report of success co-cultivating A. tumefaciens with S. sclerotiorum. This report of a reproducible Agrobacterium-mediated transformation method should allow the development of T-DNA tagging as a system for insertional mutagenesis in S. sclerotiorum and provide a simple and reliable method for genetic manipulation.

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Ascospores from the phytopathogenic fungus Sclerotinia sclerotiorum were transformed to hygromycin B resistance by co-cultivation with Agrobacterium tumefaciens. Transformed spores germinated and grew on PDA supplemented with 100 ug/ml hygromycin B. The presence of mitotically stable hph gene integration at random sites in the genome was confirmed by PCR and Southern blot analysis. A transformation frequency of 8 × 10- 5 was achieved in five separate experiments. This study is the first report of success co-cultivating A. tumefaciens with S. sclerotiorum. This report of a reproducible Agrobacterium-mediated transformation method should allow the development of T-DNA tagging as a system for insertional mutagenesis in S. sclerotiorum and provide a simple and reliable method for genetic manipulation.

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