1Department of Botany and Plant Pathology, Oregon State University, Corvallis 97331 U.S.A.; 2Department of Plant Pathology, North Dakota State University, Fargo 58105 U.S.A.
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Accepted 26 January 2001.
The ToxB gene was cloned and characterized from a race 5 isolate of Pyrenophora tritici-repentis from North Dakota. ToxB contains a 261-bp open reading frame that encodes a 23 amino acid putative signal peptide and a 64 amino acid host-selective toxin, Ptr ToxB. Analysis of Ptr ToxB from heterologous expression in Pichia pastoris confirms that ToxB encodes a host-selective toxin.
Ptr chlorosis toxin,
© 2001 The American Phytopathological Society