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The main characteristics of xanthophyceae are:

  1. The members of this family are commonly known as yellow green algae.
  2. Presence of chromatophores which are yellow green; pigments are xanthophyll or carotenoids, chlorophyll a, chlorophyll e.
  3. The reserve food materials are oil and leucosin.
  4. The members are unicellular motile to simple filamentous forms.
  5. Cell wall is rich in pectic compounds.
  6. Pyrenoids are absent.
  7. Sexual reproduction is isogamous.
  8. Zoospores having unequal flagella