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==Notes on cyanobacteria and photosynthesis== | |||
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File:2000px-Tree_of_life_SVG.svg.png|Phylogenetic tree [https://commons.wikimedia.org/wiki/File:Tree_of_life_SVG.svg] | File:2000px-Tree_of_life_SVG.svg.png|Phylogenetic tree [https://commons.wikimedia.org/wiki/File:Tree_of_life_SVG.svg] | ||
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"The Earth is surrounded by a layer of gases which we call the atmosphere. It is the product of photosynthesis, of algae working for millions of years, converting light energy from the sun into air. Evolution’s answer to the atmosphere was the lung. Thus the atmosphere is essential for most living organisms, including people." (''GLOBALE: Infosphere'', https://zkm.de/en/exhibition/2015/09/globale-infosphere) | "The Earth is surrounded by a layer of gases which we call the atmosphere. It is the product of photosynthesis, of algae working for millions of years, converting light energy from the sun into air. Evolution’s answer to the atmosphere was the lung. Thus the atmosphere is essential for most living organisms, including people." (''GLOBALE: Infosphere'', https://zkm.de/en/exhibition/2015/09/globale-infosphere) | ||
===Calothrix=== | |||
Calothrix are generally found in freshwater. | |||
===Planktothrix=== | |||
"P. agardhii and P. rubescens are commonly observed in lakes of the Northern Hemisphere where they are known producers of potent hepatotoxins called microcystins." (''Planktothrix'', Wikipedia) | |||
===Synechococcus=== | |||
"Synechococcus is very widespread in the marine environment. The photosynthetic coccoid cells are preferentially found in well–lit surface waters where it can be very abundant (generally 1,000 to 200,000 cells per ml). Many freshwater species of Synechococcus have also been described." (''Synechococcus'', wikipedia) |