Fungal Production of Methyl Halides

该项目涉及在温带森林、盐沼、淡水湿地和农业生态系统等几种环境中研究真菌中的甲基溴（CH3Br）和甲基氯（CH3Cl）。将从土壤和粗木屑中分离出几种常见真菌，在实验室中培养，研究它们产生甲基卤化物的能力，并将其重新引入经过消毒的“自然”土壤中，以确定自然环境中甲基卤化物的产生速度。研究土壤温度和湿度对产量的影响。甲基溴和氯甲烷是重要的大气卤化物，因为它们可以影响对流层和平流层的臭氧化学。他们的大气预算还不太清楚。

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.