Keller, U Isolation and Characterization of Vacuoles from the Ergot Fungus Claviceps purpurea. [electronic resource] - Applied and environmental microbiology Apr 1984 - 710-4 p. digital Publication Type: Journal Article ISSN: 0099-2240 Standard No.: 10.1128/aem.47.4.710-714.1984 doi