Observations on chytridiaceous parasites of phanerogams. XIII. Physoderma maculare Wallroth

TitleObservations on chytridiaceous parasites of phanerogams. XIII. Physoderma maculare Wallroth
Publication TypeJournal Article
Year of Publication1964
AuthorsJr. FKSparrow
JournalArchiv fur Mikrobiologie
Volume48
Pagination136-149
KeywordsPHYSODERMA
Abstract

A reexamination of Physoderma maculare Wallroth the type species of the genus, on Alisma, confirms Clinton's (1902) account of the production of an epibiotic stage from resting spore zoospores. The latter on mature host tissue may also give rise to the endobiotic stage which bears resting spores. On seedlings, however, resting spore zoospores produce only epibiotic sporangia. The fungus could not successfully infect Sagittaria, a closely related host.