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Topic: Noctilucales


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In the News (Wed 9 Dec 09)

  
  Noctilucales
These differ from most other groups in that the mature cell is diploid and its nucleus does not show a dinokaryotic organization.
During sexual reproduction, gametes are produced which resemble more typical athecate dinoflagellates and have dinokaryotic nuclei.
Evidence suggests that the Noctilucales diverged from most other dinoflagellates early on, and they are generally placed in their own class.
www.ebroadcast.com.au /lookup/encyclopedia/no/Noctilucales.html   (137 words)

  
  Noctilucales - Wikipedia, the free encyclopedia
They differ from most others in that the mature cell is diploid and its nucleus does not show a dinokaryotic organization.
Instead, they feed on other plankton, and there is usually a special tentacle involved in ingestion.
Noctilucales reproduce mainly by fission, but sexual reproduction also occurs.
en.wikipedia.org /wiki/Noctilucales   (200 words)

  
 Noctilucales - Web Health Search   (Site not responding. Last check: 2007-10-19)
They differ from most others in that the mature cell is diploid and its nucleus does not show a dinokaryotic organization.
Instead, they feed on other plankton, and there is usually a special tentacle involved in ingestion.
Noctilucales reproduce mainly by fission, but sexual reproduction also occurs.
www.erate.ws /search.aspx?search=Noctilucales   (164 words)

  
 Molecular Data and the Evolutionary History of Dinoflagellates - Science - RedOrbit
As LSU sequences for Perkinsus, Oxyrrhis, Syndiniales, Noctilucales or Blastodiniales are unavailable, the trees consisted of a large, badly resolved group of very short-branched taxa (the GPP complex, Gymnodiniales, Peridiniales, Prorocentrales and Dinophysiales) and a monophyletic grouping of longer-branched members of the order Gonyaulacales (Fig.
In the most recent general classification of dinoflagellates (Fensome et al., 1993) Noctilucales and Blastodiniales are basal classes of their own within the subdivision of dinokaryotic dinoflagellates.
As a consequence, the basal position of Noctiluca within the dinokaryotic dinoflagellates should be reexamined: the two main arguments for proposing such a basal position have been shown to be either very weak (SSU-based phylogenetic analyses), or probably wrong (the ostensible presence of histones in the nuclei of feeding stages).
www.redorbit.com /news/science/72475/molecular_data_and_the_evolutionary_history_of_dinoflagellates/index.html   (8479 words)

  
 NationMaster - Encyclopedia: Dinoflagellate
The Dinophyceae are the main class of dinoflagellates, excluding only a few peculiar groups that appear to have diverged from the others early on.
Families Kofodiniaceae Leptodiscaceae Noctilucaceae The Noctilucales are a peculiar order of marine dinoflagellates.
The Syndiniales are an order of dinoflagellates, found exclusively as endosymbionts of marine animals and protozoa.
www.nationmaster.com /encyclopedia/Dinoflagellate   (2309 words)

  
 Palaeos Eukarya: Alveolata: Dinoflagellata
The initial Triassic-Jurassic rapid increase of diversity and its subsequent stability, as indicated by fossils, could be explained by the random or environmentally induced "switching on" and "switching off" of the ability to produce fossilizable cysts by long-ranging Phanerozoic taxa.
Furthermore, the observed record does not include important taxa such as the Gymnodiniphycidae (except for Suessia and Dinogymnium, the latter appearing clearly to be a "switched on"-"switched off" ptychodiscalean), Dinophysiales (except possibly for Ternia and Palaeodinophysis), Prorocentrales, Noctilucales, Blastodiniales and Phytodiniales.
However, the Mesozoic-Cenozoic fossil record shows a pattern that would be expected of a group undergoing an initial adaptive radiation and subsequent stabilization.
www.palaeos.com /Eukarya/Units/Alveolata/Dinoflagellata.000.html   (5441 words)

  
 IngentaConnect New records of Scaphodinium mirabile (Dinophyceae), an unnoticed ...
Previous records of dinoflagellate Scaphodinium mirabile Margalef (Leptodiscaceae, Noctilucales) were restricted to the Mediterranean-Black Sea and Eastern Atlantic Ocean.
Nine and 34 specimens were observed in the upper 100 m layer in May and July, respectively, in a cross-section in the vicinity of the Kuroshio Current (NW Pacific Ocean).
Keywords: aberrant dinoflagellate; Dinophyceae; Dinophyta; Kuroshio Current; Noctilucales; Pacific Ocean; phytoplankton; Scaphodinium; taxonomy
www.ingentaconnect.com /content/bsc/pre/2004/00000052/00000001/art00002   (196 words)

  
 Algaebase: listing the world's algae
The classification is a beta version and not all taxonomic hierarchies have been repaired or are currently included.
Classification: Empire Eukaryota Kingdom Protozoa Subkingdom Biciliata Infrakingdom Alveolata Phylum Myzozoa Class Dinophyceae Order Noctilucales Family Noctilucaceae Genus Noctiluca
Numbers of names and species: There are 3 species names in the AlgaeBase species database at present, of which 1 is/are flagged as current.
www.algaebase.org /generadetail.lasso?genus_id=44661   (162 words)

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