Chrysophyta
Học thuậtThân thiện
Definition
- 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
- 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and golden-brown algae and diatoms: Xanthophyceae, Chrysophyceae, Bacillariophyceae; some classification systems superseded or subsumed by Heterokontophyta