University of California

Sexuality and genetic behavior in the fungus Hypomyces (Fusarium) solani f. sp. cucurbitae


W. C. Snyder
S. G. Georgopoulos
R. K. Webster
S. N. Smith

Authors Affiliations

W. C. Snyder was Professor of Plant Pathology and Plant Pathologist Emeritus in the Experiment Station, Berkeley; S. G. Georgopoulos was Head, Science Branch, Greek Atomic Commission, N.R.C. “Democritus,” Aghia Paraskevi, Athens; R. K. Webster was Professor of Plant Pathology and Associate Plant Pathologist in the Experiment Station, Davis; S. N. Smith was Assistant Research Plant Pathologist, Department of Plant Pathology, University of California, Berkeley.

Publication Information

Hilgardia 43(6):161-185. DOI:10.3733/hilg.v43n06p161. August 1975.

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The host-specialized pathogen, Fusarium (Hypomyces) solani f. sp. cucurbitae causes rots of the stem, root, and fruit of cucurbits in many places in the world. The fungus is seed-borne, soil-borne, and sometimes air-borne. The individual clone is usually hermaphroditic but has been found in nature in a uni-sexual form. Although the Fusarium is heterothallic, rarely are the two mating types (+ and -) found together. When they are mated, the perithecia may be either red, or white, depending upon the genetic constitution. Races, as distinguished by host response, are not interfertile. Mutations of the normal hermaphrodite may give rise to male, female or neuter forms.

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Snyder W, Georgopoulos S, Webster R, Smith S. 1975. Sexuality and genetic behavior in the fungus Hypomyces (Fusarium) solani f. sp. cucurbitae. Hilgardia 43(6):161-185. DOI:10.3733/hilg.v43n06p161
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