Algae {blue-green algae} {cyanobacteria}| can have blue phycocyanin pigment that builds unique starch, have no chloroplasts, have no nuclear membranes, live in water and damp places, and have asexual reproduction. Most cyanobacteria species are multicellular, with cells attached end-to-end by gelatin-like cell covering. Cyanobacteria used phycobilins, carotenoids, and chlorophylls to absorb visible light and make oxygen [-2700000000].
types
Prochlorococcus is one-celled and is smallest photosynthesizer at 0.6 microns diameter. It is the most-abundant genus and makes half of sea oxygen. They can live in low or high light. They do not relate to prochlorophytes. Synechococcus is similar, has 1700 genes, and has 1.7 million bases. Grypania spiralis was early blue-green alga, 0.5 meter wide. Nostoc is symbiotic with gunnera and cycads.
Biological Sciences>Botany>Algae>Kinds
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Date Modified: 2022.0224