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Trichonosema algonquinensis n. sp. (Phylum Microsporidia) in Pectinatella magnificd (Bryozoa: Phylactolaemata) from Algonquin Park, Ontario, Canada
Author(s) -
DESSER SHERWIN S.,
KOEHLER ANNE,
BARTA JOHN R.,
KAMYAB JUBIN,
RINGUETTE MAURICE J.
Publication year - 2004
Publication title -
journal of eukaryotic microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.067
H-Index - 77
eISSN - 1550-7408
pISSN - 1066-5234
DOI - 10.1111/j.1550-7408.2004.tb00385.x
Subject(s) - biology , microsporidia , bryozoa , polar filament , parasite hosting , zoology , protein filament , phylum , spore , taxonomy (biology) , botany , paleontology , genetics , world wide web , computer science , bacteria
A new species of microsporidian, Trichonosema algonquinensis , is described from a freshwater bryozoan, Pectinatella magnifica from Ontario, Canada. The parasite develops in epithelial cells and appears as white, spherical masses throughout the tissues. Trichonosema algonquinensis is diplokaryotic, diploblastic and undergoes development in direct contact with the cytoplasm of the host cell. Mature spores are ovoid, tapered at one end, and measure 8.5 ± 0.3 × 4.4 ± 0.1 μm. The polar filament is wound in 20 to 23 helical coils. Although the parasite resembles T. pectinatellae described from the same host in Michigan and Ohio, it differs in the length of the spore and number of coils of the polar filament. Analysis of 16S rDNA by maximum likelihood, parsimony and Baysian inference, complements the morphological data in supporting the placement of T. algonquinensis as a sister species of T. pectinatellae .