Position: Home > Articles > THE INFLUENCE ON THE ENVIRONMENT AND THE PROMOTION OF AQUACUILTURAL ANIMAL NUTRITION OF DMSP
Transactions of Oceanology and Limnology
2002
(3)
36-45
硫代甜菜碱(DMSP)对大气环境的影响及其对水产动物营养的促进作用
作 者：
陈葵;沈颂东
单 位：
苏州大学生命科学学院水产研究所
关键词：
硫代甜菜碱(DMSP);二甲硫醚(DMS)酸雨;水产动物;营养作用;机理
摘 要：
一种二甲基硫化合物硫代甜菜碱(DMSP)成为环境科学和水产科学共同关注的热点之一。研究表明,DMSP是海洋植物产生的渗透调节物质,大量存在于海藻和盐生高等植物体内。含有DMSP的生物体死亡之后,DMSP被海洋细菌的二甲硫醚生成酶降解,生成二甲硫醚(DMS)和丙烯酸。DMS从海洋水面逾出,进入大气形成酸雨;由于DMS能形成云,所以有降低温室效应的作用。DMSP本身则对哺乳动物、禽类及水产动物(鱼和虾)的营养代谢有促进作用。酶学研究表明,动物肝脏中的两种硫甲基转移酶能把DMSP分子中硫原子上的甲基转移出来,提供给机体代谢所需。作为海洋植物渗透调节物质的主要成分,DMSP来源于植物体内的蛋氨酸。研究DMSP的生成变化规律,对进一步了解海洋气候和开发使用新的水产动物饲料添加剂有重要价值。
译 名：
THE INFLUENCE ON THE ENVIRONMENT AND THE PROMOTION OF AQUACUILTURAL ANIMAL NUTRITION OF DMSP
作 者：
CHEN Kui SHEN Songdong (Institute of Aquaculture, Life Sciences College, Suzhou University, Suzhou, 215006)
关键词：
dimethylsulfoniopropionate, dimethyl sulfide, acid rain, nutrition, mechanism, aquaculture.
摘 要：
The study of the effect of DMSP (dimethylsulfoniopropionate, or dimethyl-beta-propiothetin, DMPT) in the production of acid rain and in the promotion of aquacultural animals nutrition is one of the focus fields in both environmental science and aquaculture. According to previous reports, DMSP is a kind of osmotic substances, mainly in the microalgae, seagrasses and higher plants in sea water. When a organism containing DMSP is dead, the marine microorganisms decompose the DMSP into DMS (dimethyl sulfide) and crylic acid by DMS synthase. The DMS overflows from the surface of the ocean into the atmosphere to cause acid rain. Because DMS can form clouds, it decreases the green house effect. DMSP itself can promote the nutrition metabolism of mammal, poultry, fish and shrimps. It is shown by enzymatic study that two kinds of S-methyltransferases (E.C.2.1.1.3, E.C.2.1.1.5) from animals?livers can transfer S-methyl from DMSP to metabolism in the organism. DMSP, the main osmotic material in marine plants, comes from Methionine. To study the mechanism of DMSP抯 change is of significant value in both marine climate changing and new feed additive applications.
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