Journal of Plant Pathology (2009) 91, 745-750

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C.J. Knight, A.M. Bailey and G.D. Foster (2009)
Agrobacterium-mediated transformation of the plant pathogenic fungus Verticillium albo-atrum
Journal of Plant Pathology 91 (3), 745-750
Abstract: We report the successful Agrobacterium tumefaciensmediated transformation of the important plant pathogen Verticillium albo-atrum. V. albo-atrum was demonstrated to be hygromycin B sensitive and consequently transformations were based on integration of either the hygromycin B resistance gene (hph) or hph in addition to the fluorescence gene DsRed. The effect of various parameters on transformation efficiency, including spore concentration, acetosyringone concentration, selection media and co-cultivation time were investigated. Transformants were analysed by PCR and Southern analysis, and were found to contain randomly integrated T-DNA that typically inserted as one or two copies. The dual marker system afforded by pCAMDsRed provides an additional and fast method of transformant verification. Development of a successful transformation system for V. albo-atrum should facilitate further molecular studies of this important plant pathogen.
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Research topic(s) for pests/diseases/weeds:
molecular biology - genes
general biology - morphology - evolution

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Verticillium albo-atrum
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