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Zygospores in Smittium culisetae (Trichomycetes) and Observations on Trichospore Germination

Marvin C. Williams
Mycologia
Vol. 75, No. 2 (Mar. - Apr., 1983), pp. 251-256
DOI: 10.2307/3792809
Stable URL: http://www.jstor.org/stable/3792809
Page Count: 6
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Zygospores in Smittium culisetae (Trichomycetes) and Observations on Trichospore Germination
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Abstract

Zygospores of Smittium culisetae (Harpellales, Legeriomycetaceae), previously unknown in this species, were found several times in mosquito larvae (Aedes vexans) in Nebraska. Trichospore germination in an axenic isolate is consistent with the concept that the trichospore is a monosporic sporangium. Holdfast material presumed to function in cementing the developing inner protoplast to the substratum is extruded almost explosively shortly after germination. The holdfast material appears to originate from apical bodies within the trichospore.

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