Biogeochemical Fate of DMSP in Seawater

海水中 DMSP 的生物地球化学归宿

• 批准号: 9907471
• 负责人: Ronald Kiene
• 金额: $ 35.02万
• 依托单位: University of South Alabama
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-09-01 至 2003-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9907471&HistoricalAwards=false
• 关键词: Biogeochemical; Fate; DMSP; Seawater

ABSTRACTOCE-9907471This work will investigate the biochemical factors which control the fate of sulfur from DMSP (dimethylsulfoniopropionate) in the upper ocean. DMSP is one of the most abundant and rapidly cycled reduced sulfur compounds in the euphotic zone of the oceans, and is an important precursor of the chemically active gas dimethyl sulfide (DMS) which is thought to have an effect on global climate. The work will investigate the nature of DMSP/DMS cycling and the fate of the sulfur in a variety of ocean settings under a variety of conditions. The role of bacteria in the cycling of these species will be investigated. Field work will be carried out during four expeditions, ranging from the warm waters of the Gulf of Mexico to the cold waters of the Labrador Sea.

摘要/ abstract摘要：本研究将探讨控制海洋上层DMSP（二甲基磺酰丙酸）中硫命运的生化因素。DMSP是海洋光带中含量最多、循环最迅速的还原性硫化合物之一，是化学活性气体二甲基硫化物（DMS）的重要前体，DMS被认为对全球气候有影响。这项工作将调查DMSP/DMS循环的性质，以及在各种条件下各种海洋环境中硫的命运。将研究细菌在这些物种循环中的作用。实地工作将在四次考察中进行，范围从墨西哥湾的温暖水域到拉布拉多海的寒冷水域。