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. 2004 Dec 15;241(2):207-14.
doi: 10.1016/j.femsle.2004.10.022.

Use of REMI and Agrobacterium-mediated transformation to identify pathogenicity mutants of the biocontrol fungus, Coniothyrium minitans

Christopher W Rogers  1 , Michael P Challen, Jonathan R Green, John M Whipps
Affiliations

Use of REMI and Agrobacterium-mediated transformation to identify pathogenicity mutants of the biocontrol fungus, Coniothyrium minitans

Christopher W Rogers et al. FEMS Microbiol Lett. .

Abstract

Restriction enzyme mediated integration (REMI) and Agrobacterium-mediated transformation (ATMT) were used to transform protoplasts or germinated conidia of the mycoparasite Coniothyrium minitans to hygromycin resistance. Using REMI, up to 32 transformants mug DNA(-1) were obtained, while 37.8 transformants 5 x 10(5) germlings(-1) were obtained using ATMT. Single-copy integrations occurred in 8% and 40% of REMI and ATMT transformants, respectively. A novel microtitre plate-based test was developed to expedite screening of 4000 REMI and ATMT C. minitans transformants. Nine pathogenicity mutants that displayed reduced or no pathogenicity on sclerotia of Sclerotinia sclerotiorum were identified.

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