Effect of urochordamines on larval metamorphosis of ascidians |
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| Authors: | S Tsukamoto H Hirota H Kato N Fusetani |
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| Institution: | (1) Fusetani Biofouling Project, ERATO, Research Development Corporation of Japan, c/o Yokohama R&D Center of Niigata Engineering Co., Ltd., 27 Shin-isogo-cho, Isogo-ku, 235 Yokohama, (Japan) |
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| Abstract: | Two pteridine-containing bromophysostigmine alkaloids, urochordamine A and B, which were isolated from ascidians as larval metamorphosis promoters, were converted to more polar compounds, urochordamine A and B, respectively, when left standing in protic solvents. These four compounds promoted larval metamorphosis of the ascidianHalocynthia roretzi in the order A>A>B>B, and induced metamorphosis of the pediveliger larvae of the musselMytilus edulis galloprovincialis. |
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| Keywords: | Metamorphosis promoter ascidian larva urochordamine Ciona savignyi Botrylloides sp Halocynthia roretzi Mytilus edulis galloprovincialis |
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