Wheat scab is a main effect on wheat production. Larger quantity of toxin produced by Fusarium head blight accumulated in grains may endanger seriously to the health of man and animals. It is more and more concerned by world wild breeders to breed new varieties of wheat with greater tolerance to Fusarium graminearum. It is one of the main breeding targets to improve the wheat scab-resistance. The technique of in vitro selection for toxin-resistant variant cell lines has provided a new way to cre...