TY - GEN
T1 - Comparative study of the toxic effect of different diphenol species on soil microbial activity
AU - Chen, H. L.
AU - Yao, J.
AU - Wang, Y. X.
AU - Wang, F.
AU - Zhou, Y.
AU - Tian, L.
AU - Djak, A.
AU - Maskow, T.
AU - Zaray, G.
PY - 2007/12/1
Y1 - 2007/12/1
N2 - 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°C and 35% moisture content. Power-time curves recorded by microcalorimetry 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.
AB - 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°C and 35% moisture content. Power-time curves recorded by microcalorimetry 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.
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M3 - Conference contribution
AN - SCOPUS:84863256508
SN - 9780415451383
T3 - Water-Rock Interaction - Proceedings of the 12th International Symposium on Water-Rock Interaction, WRI-12
SP - 1531
EP - 1534
BT - Water-Rock Interaction - Proceedings of the 12th International Symposium on Water-Rock Interaction, WRI-12
T2 - 12th International Symposium on Water-Rock Interaction, WRI-12
Y2 - 31 July 2007 through 4 August 2007
ER -