Phytotoxin Isolated from Liquid Cultures of Ceratocystis ulmi

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Science  09 Jul 1965:
Vol. 149, Issue 3680, pp. 202-203
DOI: 10.1126/science.149.3680.202


Phytotoxic material has been isolated from liquid cultures of Ceratocystis ulmi. One component of the material has been obtained in pure form and has proved to be a rather thermostable glycoprotein. This compound induced disease symptoms, similar to those produced by the fungus itself, in elm sprouits and trees.