Comparative study of the toxic effect of different diphenol species on soil microbial activity
Microcalorimetry has been used in a series of experiments to comparatively study the toxic effect caused by different diphenol species on microbial activity of Chinese fir soil. Activity of microorganisms on 1.20 g of soil sample was stimulated by 5.0 mg of glucose and 5.0 mg of ammonium sulfate held at 28℃ and 35％ moisture content. Power-time curves recorded by microcaiorimetry demonstrate decreasing amounts of soil microbial activity following increased additions of diphenol. This decrease is likely due to an increase of toxic products formed from degraded diphenol species, adversely affecting the conditions for life in this ecosystem.Among these diphenol species, the toxicity of three diphenols in descending sequence is: hydroquinone, catechol and resorcinol.
H.L.Chen J.Yao Y.X.Wang F.Wang Y.Zhou L.Tian A.Djak T.Maskow G.Zaray
School of Environmental Studies & Key Laboratory of Biogeology and Environmental Geology of Chinese UFZ Centre for Environmental Research Leipzig, Leipzig, Germany Department of Environmental Chemistry and Chemical Technology, Faculty of Science,Eotvos Lorand Univ
国际会议
第十二届水-岩相互作用国际研讨会(P0roceedings of the 12th International Symposium on Water-Rock Interaction)
昆明
英文
1531-1534
2007-07-31（万方平台首次上网日期，不代表论文的发表时间）