Heterokaryon Formation and Genetic Recombination Between Auxotrophic and Morphological Mutants of Thanatephorus Cucumeris

Abstract

Two auxotrophic mutants of T. cucumeris, one requiring nitrite and the other nicotinic acid, were obtained by irradiation of basidiospores with ultraviolet light. The deficiency was caused by a single-gene mutation in each case. Both mutants were fertile.