二甲基巯基丙酸 二甲基巯基丙酸英語Dimethylsulfoniopropionate缩写DMSP是一种化学式为CHSCHCHCOO的有机化合物常以內盐形式存在于海洋浮游植物海藻以及某些陆生及水生维管植物中 已隱藏部分未翻譯内容歡迎參與翻譯 It functions as an osmolyte as well as several other physiological and environmental roles have also been identified DMSP was first identified in the marine red alga Polysiphonia fastigiata by Frederick Challenger and Margaret Simpson later Dr Whitaker