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Quantifying Infection of Wheat by Races of Pyrenophora tritici-repentis Producing Different Host-Selective Toxins
DownloadFall 2018
Pyrenophora tritici-repentis, the cause of tan spot of wheat, produces several host-selective toxins (HSTs), including Ptr ToxA and Ptr ToxB. Ptr ToxA-producing isolates are predominant in Canada, while Ptr ToxB-producing isolates are extremely rare. The reason for the scarcity of ToxB+ isolates...
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Fall 2012
Tan spot is an important foliar disease of wheat caused by Pyrenophora tritici-repentis. This fungus produces Ptr ToxB, a host-specific toxin that induces chlorosis on sensitive host genotypes. An assessment of the effects of Ptr ToxB in a toxin-sensitive wheat line revealed that photosynthesis,...