Crysophyta the golden algae
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Crysophyta – The Golden Algae. By Glenn Lippig. Some Members. Dinobryon. Synura. Ochromonas. Phaeoplaca. Chrysophytes have varying life cycles since members are unicellular, colonial, or amoeboid, but most of them pass through a flagellate stage. Key Features.

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Crysophyta – The Golden Algae

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Crysophyta – The Golden Algae

By Glenn Lippig


Some Members

Dinobryon

Synura

Ochromonas

Phaeoplaca

Chrysophytes have varying life cycles since members are unicellular, colonial, or amoeboid, but most of them pass through a flagellate stage.


Key Features

  • Chrysophytes are facultatively heterotrophic (feed on bacteria/diatoms) in the absence of light

  • Most Crysophytes are unicellular, but some such as Dinobryn grow in colonies

  • Crysophytes are usually biflagellated (two flagella), but some have only one flagella and others are motile.


  • Chrysophyta are a foundation of the aquatic food chain in freshwater ponds and lakes.


Other Facts

  • Chrysophytes get their nickname “The Golden Algae” from their color, which is due to yellow and brown carotene and xanthophylls accessory pigments.

  • Chrysophyte cells can be “naked” and embedded in mucilage or “coccoid” and surrounded by a cell wall

  • There are over 1,000 species of Chrysophyta.

  • The ancestors of chrysophytes were actually not able to photosynthesize. It is believed they gained this ability through an endosymbiotic relationship with cyanobacteria.


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