Fungal Production of Methyl Halides

卤代甲烷的真菌生产

• 批准号: 0234706
• 负责人: Ruth Varner
• 金额: $ 15.7万
• 依托单位: University of New Hampshire
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-02-15 至 2006-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0234706&HistoricalAwards=false
• 关键词: Fungal; Production; Methyl; Halides

This project involves the study of methyl bromide (CH3Br) and methyl chloride (CH3Cl) from fungi in several environments including temperate forest, salt-marsh, fresh-water wetland, and agricultural ecosystems. Several types of common fungi will be isolated from soil and coarse woody debris, grown in the laboratory and their ability to produce methyl halide investigated, and also re-introduced into sterilized 'natural' soils to determine methyl halide production rates in the natural environment. The effect of soil temperature and moisture levels on the production rates will be studied.Methyl bromide and methyl chloride are important atmospheric halides because they can affect tropospheric and stratospheric ozone chemistry. Their atmospheric budgets are not well understood.

该项目涉及在多种环境中进行真菌的甲基溴化物（CH3BR）和氯化甲基（CH3CL）的研究，包括温带森林，盐沼，淡水湿地和农业生态系统。 将从土壤和粗木质碎片中分离出几种类型的常见真菌，在实验室中生长，及其生产卤化甲酯研究的能力，并将其重新引入灭菌的“天然”土壤中，以确定自然环境中的甲基卤化物生产速率。 将研究土壤温度和水分水平对生产率的影响。溴化苯基溴化物和氯化甲基是重要的大气卤化物，因为它们会影响对流层和平流层臭氧化学。 他们的大气预算尚不清楚。