Please use this identifier to cite or link to this item: http://hdl.handle.net/10773/5091
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dc.contributor.authorCalado, A. J.pt
dc.contributor.authorCraveiro, S. C.pt
dc.contributor.authorDaugbjerg, N.pt
dc.contributor.authorMoestrup, O.pt
dc.date.accessioned2012-01-13T10:35:36Z-
dc.date.issued2006-04-
dc.identifier.issn0022-3646pt
dc.identifier.urihttp://hdl.handle.net/10773/5091-
dc.description.abstractA small, freshwater dinoflagellate with an incomplete cingulum, identified as Esoptrodinium gemma Javornicky (=Bernardinium bernardinense sensu auctt. non sensu Chodat), was maintained in mixed culture and examined using light and serial section TEM. Vegetative flagellate cells, large cells with two longitudinal flagella (planozygotes), and cysts were examined. The cells displayed a red eyespot near the base of the longitudinal flagellum, made of two or three layers of pigment globules not bounded by a membrane. Yellow-green, band-shaped chloroplasts, bounded by three membranes and containing lamella with three thylakoids, were present in both flagellate cells and cysts. Most cells had food vacuoles, containing phagotrophically ingested chlamydomonads or chlorelloid green algae; ingestion occurred through the ventral area, involving a thin pseudopod apparently driven by the peduncle. The pusule was tubular, with numerous diverticula in its distal portion, and opened into the longitudinal flagellar canal. Three roots were associated with each pair of flagellar bases, both in vegetative cells and in a planozygote. The longitudinal microtubular root bifurcated around the longitudinal basal body. The planozygote contained a single peduncle and associated structures, and a single transverse flagellar canal with the two converging transverse flagella. Using two ciliates as outgroup species, phylogenetic analyses based on maximum parsimony, neighbor-joining and posterior probability (Bayesian analysis) supported a clade comprising Esoptrodinium, Tovellia, and Jadwigia.pt
dc.description.sponsorshipCOBICE project 530pt
dc.description.sponsorshipDanish Science Research Council grant 21-02-0539pt
dc.language.isoengpt
dc.publisherWiley Blackwellpt
dc.relationdx.doi.org/10.1111/j.1529-8817.2006.00195.xpt
dc.rightsrestrictedAccesspor
dc.subjectBernardinium bernardinensept
dc.subjectDinophyceaept
dc.subjectEsoptrodinium gemmapt
dc.subjectFlagellar apparatuspt
dc.subjectLSU rDNApt
dc.subjectPhagotrophypt
dc.subjectPhylogenypt
dc.subjectPlanozygotept
dc.subjectUltrastructurept
dc.titleUltrastructure and LSU rDNA-based phylogeny of Esoptrodinium gemma (Dinophyceae), with notes on feeding behavior and the description of the flagellar base area of a planozygotept
dc.typearticlept
dc.peerreviewedyespt
ua.distributioninternationalpt
degois.publication.firstPage434pt
degois.publication.issue2pt
degois.publication.issue2-
degois.publication.lastPage452pt
degois.publication.titleJournal of Phycologypt
degois.publication.volume42pt
dc.date.embargo10000-01-01-
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