Author:
Miller Charles E.,Martin Robert W.,Dylewski Daniel P.
Abstract
The ultrastructure of plasmodia, sporangia, and cystosori of Ligniera verrucosa Maire and Tison is described and compared with that of other plasmodiophorids. Sporangiogenic plasmodia cleave into multilobed sporangia. The contents of each sporangial lobe cleaves to form secondary zoospores, which escape the sporangium by swimming through adjacent lobes after walls between lobes break down. Certain peripherally situated lobes do not form zoospores and, after expelling their undifferentiated contents, function as exit tubes during zoospore emergence. Plasmodia contained several large, membrane-bound vacuoles of unknown function. The taxonomy of the genus Ligniera and its species is discussed. Ligniera is a good and valid taxon.
Publisher
Canadian Science Publishing
Cited by
17 articles.
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