IDENTIFICATION OF A MATING POPULATION, GIBBERELLA-NYGAMAI SP-NOV, WITHIN THE FUSARIUM-NYGAMAI ANAMORPH

Isolates of Fusarium nygamai were mated and produced fertile peritheci a of Gibberella nygamai sp. nov., on carrot agar. Female-fertile teste r strains were recovered from random ascospore progeny and two were id entified as more reliable female parents in the detection of other mem bers of this population. The formation of microconidia in short chains and the formation of chlamydospores in anamorph progeny cultures are suitable characters for species identification of F. nypamai. Fusarium nygamai is predominantly soilborne.