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Eisenia arborea
''Eisenia arborea'', or the southern sea palm (not to be confused with the sea palm), is a dominant species of kelp that is found in the Northern and Eastern Pacific from Vancouver Island, Canada south to Isla Magdalena, Mexico, and along the coast of Baja California. They are commonly found from the midtidal areas stretching to the subtidal areas. It is an edible seaweed, a source of nutrients for grazing marine invertebrates and a source of alginic acid, a food thickener. Some of the algas have a hollow stripe above its holdfast with two branches terminating in multiple blades. Eisenia arborea is studied in order to predict environmental stress in oceans intertidal zones. Hollow stripes where present when the Eisenia arborea did not receive essential nutrients for its thalli development. Eisenia arborea with hollow stripes are believed to be evolved algae in order to increase their survival in harsh living conditions. They play a huge role in determining environmental stress.
Phlorofucofuroeckol-B, a phlorotannin can be isolated from ''E. arborea''.〔(Isolation of a new anti-allergic phlorotannin, phlorofucofuroeckol-B from an edible brown alga, Eisenia arborea. Yoshimasa Sugiura, Kohji Matsuda, Yasuhiro Yamada, Masashi Nishikawa, Kazufumi Shioya, Hirotaka Katsuzaki, Kunio Imai and Hideomi Amano, Biosci. Biotechnol. Biochem., 70, 60417-1-5,2006 )〕
==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「Eisenia arborea」の詳細全文を読む
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