[Effect of toluene on urease activity of Lou soil].
Urease activity affected by toluene studying results showed as follows: Toluene had little action on Jackbean urease activity, but can remarkably increase soil urease activity in lower toluene concentrations and shorter time, the increasing variation was 1.48-3.96 times than without toluene treatment in seven soil samples tested. The variation was less than 3.98% when sterilized soil samples adsorbed the Jackbean urease. It may be because toluene can kill soil microorganism, release urease within cell and subsequently urease fixed into soil organic-inorganic colloidal. Different soil pH and microbiology can lead to vary differently for urease activity.
He
W
W
Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China. hewenx@public.xa.sn.cn
Jiang
X
X
Zhu
M
M
Wang
F
F
D007887:Fabaceae / Q000201:enzymology; D012987:Soil; D013242:Sterilization; D014050:Toluene / Q000494:pharmacology*; D014510:Urease / Q000187:drug effects* / Q000378:metabolism
D012987:Soil; D014050:Toluene; D014510:Urease