Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Pivot Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Target Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Query: EC:3.1.3.1 (
alkaline phosphatase
)
47,916
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
The aim of this experiment was the assessment of the influence of various concentrations of H2SeO3 (0.05, 0.5 and 5 mM) on the activity of soil enzymes over 112 days. The lab experiment was performed using soil samples (dust-silt black soil of 1.92% organic C content, pH 7.7), 60% maximal water capacity. The soil samples were treated with a
selenic acid
water solution at the concentrations mentioned above. As a reference, natural soil was used (without the
selenic acid
). The activity of the following enzymes was tested: beta-glucosidase, nitrate reductase, urease, dehydrogenase, acid and alkaline phosphatases. The soil was sampled at days 0, 1, 3, 7, 14, 28, 56 and 112. The results of the study have shown that the
selenic acid
had no effect on the activity of the beta-glucosidase in soil. In the course of the whole experiment, the applied
selenic acid
inhibited activity of the nitrate reductase up to 70% at 5 mM, and the activity of dehydrogenase was also decreased--by up to 85% at 5 mM, similarly to urease (with the exception of days 14 and 28), and acid phosphatase (until day 56). The activity of
alkaline phosphatase
was increased by the lowest concentration of
selenic acid
and decreased by the highest, which was found in the course of the whole experiment. The 5-mM concentration of
selenic acid
inhibited the activity of all the enzymes tested in this experiment.
...
PMID:Influence of various concentrations of selenic acid (IV) on the activity of soil enzymes. 1215 Apr 30
