Oligotrichida

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Oligotrichida

[¦äl·ə·gō′trik·ə·də]
(invertebrate zoology)
A minor order of the Spirotrichia; the body is round in cross section, and the adoral zone of membranelles is often highly developed at the oral end of the organism.
References in periodicals archive ?
Extremely high copy numbers and polymorphisms of the rDNA operon estimated from single cell analysis of oligotrich and peritrich ciliates.
Sequences analyses of the small subunit rRNA gene confirm of oligotrich ciliates sensu lato and support the monophyly of the subclasses Oligotrichia and Choreotrichia (Ciliophora, Spirotrichea).
a cladoceran Bosmina longirostris, an Oligotrich protozoan, and the midge larva Chaoborus americanus.
Jumping behavior in the oligotrich ciliates Strobilidium velox and Halteria grandinella and its significance as a defense against rotifer predators.
Considering the seasonal variations, the protozoan groups that are truly planktonic, such as the oligotrichs (Spirotrichea), predominated in the dry season, whereas during the rainy season, due to the material input and resuspension of sediment, sessile protozoans of the Peritrichia group were the most important ones.
Considerando-se as variacoes sazonais, os grupos de protozoarios que sao verdadeiramente planctonicos, como os oligotrichs (Spirotrichea), predominaram no periodo seco, enquanto que, no periodo chuvoso, em razao da entrada de material e da ressuspensao do sedimento, os protozoarios sesseis do grupo Peritrichia foram os mais importantes.
Hino T, Kametaka M, Kandtsu M (1973) The cultivation of rumen oligotrich protozoa.
Throughout the study, ciliate communities in all lakes were numerically dominated by oligotrichs.
Oceanographic Institution report in the April 23 NATURE that many plankton called oligotrichs and tintinnids can retain chloroplasts they ingest and use them to their own advantage.