Chrysophyta

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Definition
  1. Noun:
    • A division of mostly freshwater eukaryotic algae: Chrysophyta refers to a group of algae where the green chlorophyll is often masked by brown or yellow pigments, giving them a yellow-green or golden-brown appearance. This group traditionally includes classes such as yellow-green algae (Xanthophyceae), golden-brown algae (Chrysophyceae), and diatoms (Bacillariophyceae).
Examples of Usage
  • Noun:
    • The pond's water sample revealed a diverse population of Chrysophyta.
    • Diatoms, a major component of Chrysophyta, are important primary producers in aquatic ecosystems.
Advanced Usage
  • In taxonomic discussions: The classification "Chrysophyta" has been revised in many modern systems, with its members often reclassified under the division Heterokontophyta (or Ochrophyta).
    • In contemporary phycology, many organisms once grouped under Chrysophyta are now placed within Heterokontophyta.
Variants and Related Words
  • Chrysophyceae (n): A class within Chrysophyta, the golden-brown algae.
  • Bacillariophyceae (n): A class within Chrysophyta, the diatoms.
  • Xanthophyceae (n): A class within Chrysophyta, the yellow-green algae.
Synonyms
  • Golden algae (informal, for Chrysophyceae)
  • Yellow-green algae (for Xanthophyceae)
Noun
  1. 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and golden-brown algae and diatoms: Xanthophyceae, Chrysophyceae, Bacillariophyceae; some classification systems superseded or subsumed by Heterokontophyta

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