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J Invertebr Pathol. 2004 Jan;85(1):18-24.

Agrobacterium tumefaciens-mediated transformation of Beauveria bassiana using an herbicide resistance gene as a selection marker.

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Biotechnology Research Center, Southwest Agricultural University, Beibei, Chongqing 400716, PR China.


Beauveria bassiana has been investigated for use in the biological control of several insects in agricultural practice. To understand the molecular basis of virulence and host specificity and to improve the entomopathogenicity of B. bassiana, we have developed a simple, highly efficient and reliable Agrobacterium-mediated transformation method for B. bassiana using a phosphinothricin acetyltransferase (bar) gene as a selectable marker. Most transformants contained single copies of T-DNA and the T-DNA inserts were stably inherited after five generations. With this highly efficient transformation method for B. bassiana, we also obtained two putative T-DNA-tagged mutants that may have altered growth habits or virulence. Thus, the described protocol could provide a useful tool to manipulate the genetic make-up and to tag genes that may be important for virulence or growth and development of B. bassiana.

[Indexed for MEDLINE]

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