What does blue-green algae mean?

blue-green algae meaning in General Dictionary

predominantly photosynthetic prokaryotic organisms containing a blue pigment in addition to chlorophyll; happen singly or in colonies in diverse habitats; essential as phytoplankton

Sentence Examples with the word blue-green algae

A common phenomenon in cycads is the production of roots which grow upwards (apogeotropic), and appear as coralline branched structures above the level of the ground; some of the cortical cells of these roots are hypertrophied, and contain numerous filaments of blue-green Algae (Nostocaceae), which live as endoparasites in the cell-cavities.

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