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Scytonema
''Scytonema'' is a genus of photosynthetic cyanobacteria that contains over 100 species. It grows in filaments that form dark mats. Many species are aquatic and are either free-floating or grow attached to a submerged substrate, while others species grow on terrestrial rocks, wood, soil, or plants. ''Scytonema'' is a nitrogen fixer, and can provide fixed nitrogen to the leaves of plants on which it is growing on.〔http://www.biology.duke.edu/bio265/Archive/1999/czcf/scytonema.html〕 Some species of ''Scytonema'' form a symbiotic relationship with fungi to produce a lichen. ==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Scytonema」の詳細全文を読む
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