diatom

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Related to Bacillariophyta: Bacillariophyceae

di·a·tom

 (dī′ə-tŏm′)
n.
Any of various microscopic one-celled or colonial heterokonts of the class Bacillariophyceae that are photosynthetic, have a silica cell wall made up of two interlocking parts, and form an important component of phytoplankton.

[New Latin diatoma, from Greek diatomos, cut in half, from diatemnein, to cut in half : dia-, dia- + temnein, to cut; see tem- in Indo-European roots.]

diatom

(ˈdaɪətəm; -ˌtɒm)
n
(Microbiology) any microscopic unicellular alga of the phylum Bacillariophyta, occurring in marine or fresh water singly or in colonies, each cell having a cell wall made of two halves and impregnated with silica. See also diatomite
[C19: from New Latin Diatoma (genus name), from Greek diatomos cut in two, from diatemnein to cut through, from dia- + temnein to cut]

di•a•tom

(ˈdaɪ ə təm, -ˌtɒm)

n.
any of numerous mostly marine algae of the class Bacillariophyceae (phylum Chrysophyta), each one-celled alga being enclosed in an intricately patterned double shell of silica, one shell fitting over the other like a box lid.
[1835–45; < New Latin Diatoma orig. a genus name, feminine n. based on Greek diátomos cut in two. See dia-, -tome]

di·a·tom

(dī′ə-tŏm′)
Any of various microscopic one-celled algae that live in water, have hard shells composed mostly of silica, and often live in colonies. Diatom shells are made of two symmetrical parts called valves.

diatomaceous (dī′ə-tə-mā′shəs) adjective
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.diatom - microscopic unicellular marine or freshwater colonial alga having cell walls impregnated with silicadiatom - microscopic unicellular marine or freshwater colonial alga having cell walls impregnated with silica
phytoplankton - photosynthetic or plant constituent of plankton; mainly unicellular algae
alga, algae - primitive chlorophyll-containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves
Bacillariophyceae, class Bacillariophyceae, class Diatomophyceae, Diatomophyceae - marine and freshwater eukaryotic algae: diatoms
Translations
References in periodicals archive ?
Phytoplankton biomass was dominated by Cyanophyta, Chlorophyta, Bacillariophyta and Euglenophyta (Fig.
The analysis of other algal groups, such as Cryptophyta, Bacillariophyta and Pyrrophyta showed an increase from August to early November 2010.
Se registraron cinco especies de cianobacterias distribuidas en cinco generos, y 89 especies de microalgas distribuidas en cuatro divisiones: Bacillariophyta (32 generos y 66 especies), Chlorophyta (13 generos y 18 especies), Euglenophyta (3 generos y 4 especies) y Xanthophyta (1 genero y 1 especie) (Tabla 2).
Of the 128 identified species, the highest percentage (fifty-six species, 43%) was classified as sporadic, distributed among the Bacillariophyta divisions (50 species), Dinophyta (4 species), and Cyanophyta (2 species).
Major phytoplankton groups were identified and included Cyanobacteria, Dinophyta (dinoflagellates), Bacillariophyta (diatoms), and miscellaneous other groups and morphotypes.
Taxonomic study of bacillariophyta from Kallar Kahar Lake Chakwal, Punjab, Pakistan.
Se documenta un total de 466 especies (Tabla 1): 172 Rhodophyta (la mayoria Florideophyceae: 120 taxa), 114 Chlorophyta (la mayoria Ulvophyceae: 105 taxa), 99 Bacillariophyta (la mayoria Bacillariophyceae: 85 taxa), 42 Ochrophyta (la mayoria Phaeophyceae: 40 taxa), 30 Dinophyta (la mayoria Prorocentrales: 14 taxa), 6 Euglenophyta y 3 Cyanoprokaryota.
De la division Bacillariophyta pertenece el 72% de los generos registrados, seguido por Cyanobacteria (27%), y las divisiones Chlorophyta y Euglenophyta (1% y 0,2% respectivamente).
The phytoplankton species compositions in Qingdao and Weihai were quite similar, being composed of 50% Bacillariophyta, 29% Pyrrophyta, 5% Chlorophyta, 5% Chrysophyta, 7% Protozoa, and 4% unidentified species.
El fitoplancton marino, principal componente fotosintetico de los ecosistemas pelagicos, es una comunidad diversa, constituida por alrededor de 5,000 especies de microalgas, distribuidas en aproximadamente 19 clases de 7 divisiones (Tett & Barton, 1995; Lee, 1999; Hernandez- Becerril, 2003); entre las que destacan por su riqueza y abundancia Bacillariophyta (diatomeas) y Dinophyta (dinoflagelados).