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Topic: Oligohymenophorea

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Phyllopharyngea

Ciliophora

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	Oligohymenophorea
		The Oligohymenophorea are a large class of ciliate protozoa.
		There is typically a ventral groove containing the mouth and distinct oral cilia, separate from those of the body.
		Since then the Apostomatia[?] have been added, but otherwise its composition has remained relatively constant, with the main variations being the position of the Peniculida and of the Plagiopylida.
	www.ebroadcast.com.au /lookup/encyclopedia/ol/Oligohymenophorea.html (214 words)

	Peritrichia
		The Peritrichia are a large and distinctive group of ciliate protozoa, treated as a subclass of the Oligohymenophorea.
		They are usually bell or disc shaped, with a prominent paroral membrane arising from the oral cavity and circling counter-clockwise around the anterior of the cell, accompanied by a smaller series of membranelles.
		Most live on the integument or gills of freshwater and marine invertebrates, but other hosts occur, including fish and even other ciliates, and other locations as well.
	www.ebroadcast.com.au /lookup/encyclopedia/pe/Peritrichia.html (211 words)

	Oligohymenophorea, genetics
		Phylogenetic relationships of the subclass peritrichia (Oligohymenophorea, Ciliophora) with emphasis on the genus Epistylis, inferred from small subunit rRNA gene sequences.
		DNA was isolated directly from field-sampled species for PCR, and was used to resolve relationships within the genus Epistylis and to confirm the stability of the placement of peritrichs.
		Phylogenetic relationships within the class Oligohymenophorea, phylum Ciliophora, were investigated by determining the complete small subunit rRNA (SSrRNA) gene sequences for the hymenostomes Colpidium campylum, Glaucoma chattoni, and the peritrich Opisthonecta henneguyi.
	lib.bioinfo.pl /meid:286008 (1874 words)

	Reasoning behind Denis Lynn's revised classification of the Phylum Ciliophora
		This superclass includes ciliates with oral structures that include adoral polykinetids that can be as few as three in number and a paroral on the right side, which can be circular when the oral region is apical.
		I agree that the plagiopylians should be elevated to class rank as suggested by de Puytorac et al.
		This varies only slightly in the entodiniomorphids for which Lynn (1991) has interpreted the appearance of a transient microtubule during somatic kinetid replication to be the homologue of the T2 transverse microtubular ribbon of other litostomes.
	www.uoguelph.ca /~ciliates/classification/reasoning.html (1302 words)

	Medscape MEDLINE search: Oligohymenophorea
		The protozoans Ancistrum mytili (Oligohymenophorea: Ancistridae) and Marteilia refringens/maurini (Marteiliidea: Marteiliidae) were found parasitizing cultured mussels Mytilus galloprovincialis L. from Dis Aquat Organ - Jun 2006 - Abdalnasser Rayyan, Panagiotis Damianidis, Chryssanthi Antoniadou
		Molecular polymorphism of strains within Paramecium septaurelia (Ciliophora, Oligohymenophorea).
		Ciliophora, Cl. Oligohymenophorea) based on sequences of the histone H4 gene fragment.
	search.medscape.com /uslclient/searchMedline.do?queryText=Oligohymenophorea (987 words)

	The wonderful world of microrganisms
		There are three classes of ciliates, all classified according to the complexity of their membrane structure the simplest being kinetofragminophorea, next in line is oligohymenophorea (oligo meaning "few", hymen meaning "membrane") and then polyhymenophorea (poly meaning "many").
		Both the paramecium and the ciliate you see here are in the class oligohymenophorea, but within the class is two sub-classes and the paramecium and the ciliate below are not in the same subclass.
		I will assume the species is Vorticella, as it is the most common one in freshwater, there are several other species and it would have taken me some time and closer examination to find out for sure as they are all similar.
	www.pavementgear.com /microsite/micro2.htm (568 words)

	Systematics of the Ciliata (Site not responding. Last check: 2007-11-03)
		Ciliate Diversity : Above are shown representatives of four major groups of Ciliata.
		From left to right, these are Didinium (Litostomatea); Stentor (Spirotrichea); Paramecium (Nassophorea); and Vorticella (Oligohymenophorea).
		There are an estimated 7,500 species of ciliate known.
	www.ucmp.berkeley.edu /protista/ciliata/ciliatasy.html (110 words)

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