A new species of Fusarium producer of galactose oxidase

Fifty-two isolates of Fusarium species and one of Gibberella fujikuroi were tested for galactose oxidase (GO) production. Five Fusarium isolates conta ined GO activity in the culture filtrate: three F. graminearum and one each F. moniliforme f. sp. subglutinans and F. acuminatum. This is the first ti me F. acuminatum is reported to be a producer of GO enzyme. GO enzyme activ ity produced by isolates was assayed through a time course. Moreover, GO pr otein was partially purified from the most productive four isolates to show that the activity measured in the culture filtrates was due to the presenc e of GO protein.