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Comparison of the action of phenylmercuric borate and phenylmercuric acetate on urease activity in soil



Comparison of the action of phenylmercuric borate and phenylmercuric acetate on urease activity in soil



Anales de Edafologia y Agrobiologia 41(11/12): 2245-2252



In laboratory experiments phenylmercuric acetate (PMA) and phenylmercuric borate (PMB) inhibited the activity of urease in three soils and of the purified enzyme. The degree of inhibition ranged from 62 to 79%, and was similar for the two chemicals. The optimum concentration of inhibitor was 75 ppm, no further increase in inhibitory effect being achieved by concentrations above this.

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