Cyanobacteria
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Cyanobacteria are a group of autotrophic gram-negative bacteria of the phylum Cyanobacteriota that can obtain biological energy via oxygenic photosynthesis. Cyanobacteria originated in a freshwater or
CSIRO Science Image 4203 A bluegreen algae species Cylindrospermum sp under magnification
Cyanobacteria are found almost everywhere. Sea spray containing marine microorganisms, including cyanobacteria, can be swept high into the atmosphere where they become aeroplankton, and can travel the globe before falling back to earth.
Prochlorococcus, an influential marine cyanobacterium which produces much of the world's oxygen
Unicellular and colonial cyanobacteria. (scale bars about 10 μm)
Spirulina is the dried biomass of cyanobacteria that can be consumed by humans and animals. The three species are Arthrospira platensis, A. fusiformis, and A. maxima. Recent research has further moved
Cyanobacteria
…future crewed outposts on Mars, by transforming materials available on this planet. Some cyanobacteria are sold as food, notably Limnospira platensis (spirulina), Aphanizomenon flos-aquae (Klamath Lake AFA), and others. Some microalgae contain substances of high biological value, such as polyunsaturated fatty…
Spirulina tablets
Spirulina powder at 400×, unstained wet mount