The United States of America As Represented by the Secretary of

G Thomas Hayman

Gregory L Cote

Timothy D Leathers

Paul L Bolen

A rapid screening procedure to select microorganism strains that produce a high proportion of alternan to dextan and a high proportion of alternansucrase to dextransucrase is described. Strains selected by the method are useful to produce a high proportion of alternansucrase to dextransucrase and to produce a high proportion of alternan to dextran, either fermentatively by cultivation of the strains on sucrose, or enzymatically by using alternansucrase produced by the strains of the invention. The selected strains can also be used to obtain microorganism strains having further improvements.

Rapid screening method to select microorganism strains that produce a

A rapid screening procedure to select microorganism strains that produce a high proportion of alternan to dextran and a high proportion of alternansucrase to dextransucrase is described. Strains selected by the method are useful to produce a high proportion of alternansucrase to dextransucrase and to produce a high proportion of alternan to dextran, either fermentatively by cultivation of the strains on sucrose, or enzymatically by using alternansucrase produced by the strains of the invention. The selected strains can also be used to obtain microorganism strains having further improvements.

Microorganism strains that produce a high proportion of alternan to

A novel cytotoxic protein is described possessing antifungal activity and which may be used for the treatment of fungal infections, or the prevention or control of fungal growth, as well as being potentially valuable as a biopesticide such as an insecticide, nematicide, or herbicide. The protein is produced by culture of Pichia inositovora strain NRRL Y-18709, and may be subsequently recovered from the culture medium and purified.

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Peoria, IL, United States of America

G Thomas Hayman