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picrotoxin n.【化學】苦毒。

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During experiment , acetylcholine shows significant inhibitory effects on the settlement and metamorphosis of ascidian larvae , but its concentration cannot lower 1 x 10 - 7mol / l . similarly acetylcholine , y - aminobutyric ( gaba ) and picrotoxin also can inhibit the settlement and metamorphosis of s . canopus larvae 實驗中,乙酰膽堿對冠瘤海鞘的附著變態表現出抑制作用,但當濃度降低到10 ~ ( - 7 ) mol l時,此作用已不明顯。