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Coscinodiscophyceae is a class of diatom.[1]
Coscinodiscophyceae is similar to Centrales. Order Centrales is a traditional, paraphyletic subdivision of the heterokont algae known as diatoms.[2][3][4] The order is named for the shape of the cell walls (or valves or frustules) of centric diatoms, which are circular or ellipsoid in valve view. The valves often bear radially symmetrical ornamental patterns that can appear as dots when viewed with an optical microscope. Some also bear spines on their valves, which may either increase cell surface area and reduce sinking, or act as a deterrent to zooplankton grazers. Unlike pennate diatoms, centric diatoms never have a raphe.
In terms of cell cycle, vegetative cells are diploid and undergo mitosis during normal cell division. In sexual species, oogamous meiosis produces haploid gametes, either ova or sperm cells. These fuse to produce a zygote which expands in size to develop into an auxospore from which full-size vegetative cells are produced.
In some taxonomy schemes,[3] the centric diatoms are known instead as Order Coscinodiscophyceae. And in some schemes as order Biddulphiales.[5] However, diatom taxonomy is changing due to the development of new molecular and genetical analysis tools.[4]
Tremarin, Priscila; Veiga Ludwig, Thelma Alvim; Torgan, Lezilda Carvalho (November 7, 2014). "Aulacoseira veraluciae sp. nov. (Coscinodiscophyceae, Aulacoseiraceae): a common freshwater diatom from Brazil". PHYTOTAXA 184 (4): 208-222. External links Plankton About plankton Algal bloom CLAW hypothesis High lipid content microalgae Holoplankton Meroplankton Milky seas effect Paradox of the plankton Planktology Red tide Spring bloom Thin layers More... By size Eukaryotic picoplankton Heterotrophic picoplankton Microphyte (microalgae) Nanophytoplankton Photosynthetic picoplankton Picobiliphyte Picoeukaryote Picoplankton Bacterioplankton Bacteriastrum Aeromonas salmonicida Cyanobacteria Cyanobiont Cyanotoxin Enteric redmouth disease Flavobacterium Flavobacterium columnare Pelagibacter ubique Marine bacteriophage SAR11 clade Streptococcus iniae Phytoplankton Auxospore Axodine Chaetoceros Chaetocerotaceae Coccolithophore Emiliania huxleyi Eustigmatophyte Frustule Heterokont Nannochloropsis Navicula Prasinophyceae Raphidophyte Thalassiosira pseudonana Diatom orders Centrales Pennales (Classes: Coscinodiscophyceae Fragilariophyceae Bacillariophyceae) Flagellates Brevetoxin Choanoflagellates Dinoflagellates Flagellum Pfiesteria piscicida Saxitoxin Symbiodinium Velvet (fish disease) Zooplankton Chaetognatha Ciguatera Ctenophora Gelatinous zooplankton Hunting copepods Ichthyoplankton Jellyfish Marine larvae Crustacean larvae Salmon louse Sea louse Copepod orders Calanoida Cyclopoida Harpacticoida Monstrilloida Poecilostomatoida Siphonostomatoida More... Related topics Aeroplankton Algaculture Algal mat Algal nutrient solutions Artificial seawater Autotrophs Biological pump Diel vertical migration Dimethylsulfoniopropionate f-ratio Fish diseases and parasites Heterotroph HNLC Macroalgae Manta trawl Marine mucilage Microbial mat Mycoplankton Ocean acidification Primary production Stromatolite Tychoplankton Zoid C-MORE CPR AusCPR MOCNESS SCAR Eukaryota: SAR: Heterokonta or Stramenopiles Domain (Kingdom ) Ochrophyta (photosynthetic) Phaeista Hypogyristea Pinguiophyceae Pelagophyceae Axodines/Actinochrysophyceae Dictyochales/Silicoflagellates Pedinellales/Actinodines Rhizochromulinales Actinophryida Florenciellales Chrysista Chrysophyceae, golden algae Chromulinales Chrysosphaerales Hibberdiales Hydrurales Phaeothamniales Eustigmatophyceae Eustigmataceae Monodopsidaceae Pseudocharaciopsidaceae Phaeophyceae, brown algae Ascoseirales Cutleriales Desmarestiales Dictyotales Discosporangiales Ectocarpales Fucales Ishigeales Laminariales Nemodermatales Onslowiales Ralfsiales Scytosiphonales Scytothamnales Sphacelariales Sporochnales Syringodermatales Tilopteridales Phaeothamniophyceae Phaeothamniales Pleurochloridellales Raphidophyceae Chattonella, Fibrocapsa, Gonyostomum, Haramonas, Heterosigma, Vacuolaria Synurophyceae Heterogloeales Ochromonadales Rhizochloridales Synurales Xanthophyceae, yellow-green algae Botrydiales Mischococcales Tribonematales Vaucheriales Khakista Bolidophyceae Bolidomonas Bacillariophyta, diatoms Coscinodiscophyceae Biddulphiophycidae Chaetocerotophycidae Corethrophycidae Coscinodiscophycidae Cymatosirophycidae Lithodesmiophycidae Rhizosoleniophycidae Thalassiosirophycidae Bacillariophyceae Bacillariales Naviculales Fragilariophyceae Fragilariales Heterotrophic groups Pseudofungi Oomycetes Hyphochytriomycetes Bigyra Sagenista Bicosoecea Labyrinthulomycetes Opalinata/Slopalinida Opalinidae Proteromonadidae Blastocystis Categories Articles with 'species' microformats Pages using citations with accessdate and no URL Commons category template with no category set Commons category without a link on Wikidata Biological oceanography Diatoms Planktology
Labyrinthulomycetes
Rhizaria, Ochrophyta, Pseudofungi, Bigyra, SAR supergroup
Cenozoic, Heterokont, Jurassic, Plankton, Philadelphia
Phylogenetics, Biological classification, Nomenclature, Botany, Crocus
Fish, Amphipoda, Animal, Fresh water, Phytoplankton
Amoebozoa, Bacteria, Rhizaria, Animal, Fungus
Culture, Plankton, Biological classification, Coscinodiscophyceae, Chromalveolata
Heterokont, Plankton, Biological classification, Diatom, Chaetocerotaceae
Heterokont, Plankton, Silicoflagellate, Rhizochromulinales, Coscinodiscophyceae