Linked Life Data

12022276

Source:http://linkedlifedata.com/resource/pubmed/id/12022276

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2002-5-22
pubmed:databankReference
pubmed:abstractText
Comparative electron microscopic studies of Collodictyon triciliatum and Diphylleia rotans (=Aulacomonas submarina) showed that they share a distinctive flagellar transitional zone and a very similar flagellar apparatus. In both species, the basic couple of basal bodies and flagella #1 and #2 are connected to the dorsal and ventral roots, respectively. Collodictyon triciliatum has two additional basal bodies and flagella, #3 and #4, situated on each side of the basic couple, each of which also bears a dorsal root. The horseshoe-shaped arrangement of dictyosomes, mitochondria with tubular cristae and the deep ventral groove are very similar to those of Diphylleia rotans. These two genera have very specific features and are placed in a new family, Collodictyonidae, distinct from other eukaryotic groups. Electron microscopic observation of mitotic telophase in Diphylleia rotans revealed two chromosomal masses, surrounded by the nuclear envelope, within the dividing parental nucleus, as in the telophase stage of the heliozoan Actinophrys and the helioflagellate Dimorpha. Spindle microtubules arise from several MTOCs outside the nucleus, and several microtubules penetrate within the dividing nucleus, via pores at the poles. This semi-open type of orthomitosis is reminiscent of that of actinophryids. The SSU rDNA sequence of Diphylleia rotans was compared with that of all the eukaryotic groups that have a slow-evolving rDNA. Diphylleia did not strongly assemble with any group and emerged in a very poorly resolved part of the eukaryotic phylogenetic tree.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
1434-4610
pubmed:author
pubmed:issnType
Print
pubmed:volume
153
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
59-70
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Collodictyon triciliatum and Diphylleia rotans (=Aulacomonas submarina) form a new family of flagellates (Collodictyonidae) with tubular mitochondrial cristae that is phylogenetically distant from other flagellate groups.
pubmed:affiliation
Biologie des Protistes, UMR CNRS 6023, Université Blaise Pascal de Clermont-Ferrand, Aubière, France. Guy.BRUGEROLLE@lbp.univ-bpclermont.fr
pubmed:publicationType
Journal Article