Chrysophyta

Thesaurus

Noun

Chrysophyta - mostly freshwater eukaryotic algae having the chlorophyll masked by brown or yellow pigment; yellow-green and golden-brown algae and diatoms: Xanthophyceae, Chrysophyceae, Bacillariophyceae; some classification systems superseded or subsumed by Heterokontophytadivision Chrysophytakingdom Protoctista, Protoctista - in most modern classifications, replacement for the Protista; includes: Protozoa; Euglenophyta; Chlorophyta; Cryptophyta; Heterokontophyta; Rhodophyta; unicellular protists and their descendant multicellular organisms: regarded as distinct from plants and animalsgolden algae - algae having the pigments chlorophyll and carotene and xanthophyllyellow-green algae - any alga of the division Chrysophyta with its chlorophyll masked by yellow pigmentChrysophyceae, class Chrysophyceae, class Heterokontae, Heterokontae - all the yellow-green algae having flagella of unequal lengthclass Xanthophyceae, Xanthophyceae - yellow-green algaeBacillariophyceae, class Bacillariophyceae, class Diatomophyceae, Diatomophyceae - marine and freshwater eukaryotic algae: diatomsHeterotrichales, order Heterotrichales - yellow-green algae with simple or branching filaments; comprising the single family Tribonemaceaedivision - (biology) a group of organisms forming a subdivision of a larger category

Chrysophyta

(krəsŏf`ətə), phylum (division) of unicellular marine or freshwater organisms of the kingdom ProtistaProtista
or Protoctista
, in the five-kingdom system of classification, a kingdom comprising a variety of unicellular and some simple multinuclear and multicellular eukaryotic organisms.
..... Click the link for more information. consisting of the diatomsdiatom
, unicellular organism of the kingdom Protista, characterized by a silica shell of often intricate and beautiful sculpturing. Most diatoms exist singly, although some join to form colonies.
..... Click the link for more information. (class Bacillariophyceae), the golden, or golden-brown, algae (class Chrysophyceae), and the yellow-green algae (class Xanthophyceae). In many chrysophytes the cell walls are composed of cellulose with large quantities of silica. Some have one or two flagella, which can be similar or dissimilar. A few species are ameboid forms with no cell walls. The food storage products of chrysophytes are oils or the polysaccharide laminarin. Formerly classified as plants, the chrysophytes contain the photosynthetic pigments chlorophyll a and c; all but the yellow-green algae also contain the carotenoid pigment fucoxanthin. Under some circumstances diatoms will reproduce sexually, but the usual form of reproduction is cell division. The diatoms and golden-brown algae are of great importance as components of the plankton and nanoplankton that form the foundation of the marine food chain.

Chrysophyta

[krə′säf·ə·də] (botany) The golden-brown algae, a division of plants with a predominance of carotene and xanthophyll pigments in addition to chlorophyll.

Chrysophyta

a division of the algae. The colouring is caused by the presence of CAROTENOID pigments that are present with the CHLOROPHYLL. This very diverse group of freshwater and marine forms includes the golden-brown algae (Chrysophyceae), yellow-green algae (Xanthophyceae) and the diatoms (Bacillariophyceae).

Chrysophyta

Related to Chrysophyta: Chlorophyta, division Chrysophyta, Pyrrophyta

noun

Synonyms for Chrysophyta

noun mostly freshwater eukaryotic algae having the chlorophyll masked by brown or yellow pigment

Synonyms

division Chrysophyta

Related Words

kingdom Protoctista
Protoctista
golden algae
yellow-green algae
Chrysophyceae
class Chrysophyceae
class Heterokontae
Heterokontae
class Xanthophyceae
Xanthophyceae
Bacillariophyceae
class Bacillariophyceae
class Diatomophyceae
Diatomophyceae
Heterotrichales
order Heterotrichales
division