U.S.-Korea Cooperative Research on Production of Dissolved Organic Carbon and Taste-and-Odor Compounds Through Extra- Cellular Excretion and Cell Death in Cyanobacteria

美韩合作研究通过蓝藻细胞外排泄和细胞死亡生产溶解有机碳和味道和气味化合物

基本信息

批准号：
9605163
负责人：
G-Yull Rhee
金额：
$ 2.71万
依托单位：
Health Research Incorporated/New York State Department of Health
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
1997
资助国家：
美国
起止时间：
1997-08-01 至 2001-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9605163&HistoricalAwards=false
关键词：
U.S.Korea Cooperative Research Production

项目摘要

Rhee 9605163 This award supports a three-year collaborative research project between Dr. G-Yull Rhee of the New York State Department of Health and Dr. Jin-Hwan Lee of Sangmyung University in Seoul, Korea on "Production of Dissolved Organic Carbon and Taste-and-Odor Compounds Through Extracellular Excretion and Cell Death in Cyanobacteria." The goals of the project are: 1) to determine the effect of light intensity on the production of dissolved organic carbon and major odor producing compounds, and the relative importance of excretion and cell death in their production, 2) to elucidate the seasonal dynamics of the compounds in a reservoir, and 3) to identify problem species which produce off-flavor compounds. The production and consumption of dissolved organic carbon in the aquatic ecosystem has important implications for primary productivity, heterotrophic microbial production and nutrient cycling. From a public health standpoint, high concentrations of dissolved organic carbon and taste and odor producing compounds can impair potability and recreational use of water. This study will help elucidate the release of these compounds from cyanobacteria, a prevalent group of phytoplankton often associated with eutrophication. The expertise and facilities of the U.S. and Korean research groups will be combined in an effort to significantly advance the work. ***

Rhee 9605163该奖项支持了纽约州卫生部G-Yull Rhee博士与韩国首尔Sangmyung University的Jin-Hwan Lee博士之间的为期三年的合作研究项目，以通过细胞外排泄物和细胞死亡的Cyananobacceria中的细胞死亡和细胞死亡来生产“溶解有机碳与味道和粉状化合物的生产”。该项目的目标是：1）确定光强度对溶解的有机碳和主要气味产生化合物的产生的影响，以及排泄物和细胞死亡在其生产中的相对重要性，2）阐明储油罐中该化合物的季节性动态，以及3）识别产生非含量化合物的问题。水生生态系统中溶解有机碳的生产和消费对主要生产力，异养微生物生产和营养循环具有重要意义。从公共卫生的角度来看，高浓度溶解的有机碳以及味道和气味产生化合物会损害饮用水和娱乐性水的使用。这项研究将有助于阐明这些化合物从蓝细菌的释放，这是一种普遍存在的浮游植物，通常与富营养化有关。美国和韩国研究小组的专业知识和设施将结合起来，以大大推动这项工作。 ***