期刊
JOURNAL OF EUKARYOTIC MICROBIOLOGY
卷 65, 期 2, 页码 180-190出版社
WILEY
DOI: 10.1111/jeu.12452
关键词
Monosporangiate; parasite; polymorphic; polysporangiate; Pythium; zoospore
类别
资金
- National Science Foundation [MRI DEB-0500766, DEB-1455611, DEB-1354625]
- Sao Paulo Research Foundation FAPESP [2015/05596-4]
- Direct For Biological Sciences
- Division Of Environmental Biology [1354625, 1455611] Funding Source: National Science Foundation
Increasing numbers of sequences of basal fungi from environmental DNA studies are being deposited in public databases. Many of these sequences remain unclassified below the phylum level because sequence information from identified species is sparse. Lack of basic biological knowledge due to a dearth of identified species is extreme in Cryptomycota, a new phylum widespread in the environment and phylogenetically basal within the fungal lineage. Consequently, we are attempting to fill gaps in the knowledge of Rozella, the best-known genus in this lineage. Rozella is a genus of unwalled, holocarpic, endobiotic parasites of hosts including Chytridiomycota, Blastocladiomycota, Oomycota, Basidiomycota, and a green alga, with most species descriptions based on morphology and host specificity. We found a Rozella parasitizing a Pythium host that was a saprobe on spruce pollen bait placed with an aquatic sample. We characterized the parasite with light microscopy, TEM of its zoospores and sporangia, and its 18S/28S rDNA. Comparison with other Rozella species indicates that the new isolate differs morphologically, ultrastructurally, and genetically from Rozella species for which we have data. Features of the zoospore also differ from those of previously studied species. Herein we describe the Rozella as a new species, R.multimorpha.
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