Rediscovery of an unusual chytridiaceous fungus new to the order Rhizophydiales

The newest order in Chytridiomycota, Rhizophydiales, shows remarkable genetic divergence and zoospore ultrastructural diversity. From submersed mud from a marsh near an oligotrophic lake in the Patagonia region of Argentina, we isolated a previously undescribed chytrid in Rhizophydiales with unique...

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Bibliographic Details
Published in:Mycologia 2008-03, Vol.100 (2), p.325-334
Main Authors: Letcher, P. M., Powell, M. J., Viusent, M. C.
Format: Article
Language:English
Subjects:
Rhizophlyctis harderi
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Summary:The newest order in Chytridiomycota, Rhizophydiales, shows remarkable genetic divergence and zoospore ultrastructural diversity. From submersed mud from a marsh near an oligotrophic lake in the Patagonia region of Argentina, we isolated a previously undescribed chytrid in Rhizophydiales with unique 28S rRNA and ITS1-5.8S-ITS2 sequences and a distinctive zoospore and thallus. In a combined LSU + 5.8S phylogeny of representative taxa in the order, the nearest relative to this new species is Rhizophlyctis harderi, and their zoospores share several similar character states. A new genus is erected for this chytrid, the first to be brought into pure culture from this region.
ISSN:0027-5514
1557-2536
DOI:10.3852/mycologia.100.2.325