Taxonomic study of fusaria of the sporotrichiella section used in recent toxicological work.

Eight isolates of Fusarium of the Sporotrichiella section were critically studied as to their taxonomic position. Most of these isolates had been used for comprehensive toxicological work on mycotoxin effects on animals, chiefly in the United States and Japan. Isolates NRRL 3299 and NRRL 3287, supplied from the United States, were determined to be Fusarium poae. Isolates NRRL 3249, NRRL 5908, 2061-C, and YN-13 from the United States and isolate T-2 from South Africa belonged to Fusarium sporotrichioides. Isolate NRRL 3509 belonged to F. sporotrichioides var. tricinctum. The relevance of recent toxicological work with these isolates on animals to earlier work on alimentary toxic aleukia is discussed in light of the above identifications.