Parabasalia
(parabasalians, parabasalids)
[=Parabasalidea]
Life
> Eukaryotes > Excavata
Single-celled and live as parasites
or symbionts in animals. Trichomonas
vaginalis is a parabasalid that causes a sexually transmitted
disease in humans. Trichomonas hominis and T. tenax can
also infect people but are regarded as harmless commensals. Other species live in the intestines of some
cockroaches
and termites enabling
them to break down the cellulose in the dead plant material they eat. These
symbiotic parabasalids in turn have symbiotic bacteria that aid locomotion and
cellulose breakdown.
Classification
Trichomonadida
Genera: Cochlosoma, Dientamoeba, Monocercomonas, Pentatrichomonoides,
Pseudotrichomonas, Trichomitopsis, Trichomonas, Tritrichomonas. |
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Cristamonadida
Genera: Calonympha, Coronympha, Deltotrichonympha, Devescovina, Foaina,
Joenia, Kofoidia, Lophomonas, Rhizonympha. |
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Spirotrichonymphida
Found in the hindguts of lower termites. Genera: Holomastigotes,
Holomastigotoides, Microjoenia, Spironympha, Spirotrichonympha. |
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Trichonymphida
Found in the hindguts of lower termites. Genera: Cryptocercus.
Barbulanympha, Eucomonympha, Hoplonympha, Spirotrichosoma, Staurojoenina,
Teranympha, Trichonympha. |
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Publications
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Adl, S.M., Simpson, A.G., Farmer, M.A., Andersen, R.A.,
Anderson, O.R., Barta, J.R., Bowser, S.S., Brugerolle, G., Fensome, R.A.,
Fredericq, S., James, T.Y., Karpov, S., Kugrens, P., Krug, J., Lane, C.E.,
Lewis, L.A., Lodge, J., Lynn, D.H., Mann, D.G., McCourt, R.M., Mendoza, L.,
Moestrup, Ø., Mozley-Standridge, S.E., Nerad, T.A., Shearer, C.A., Smirnov,
A.V., Spiegel, F.W. and Taylor, M.F.J.R. 2005. The new higher level
classification of eukaryotes with emphasis on the taxonomy of protists.
Eukaryote Microbiology 52(5): 399-451.
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