+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Enzymatic release of phosphate in sediments of various origins

Water Research 26(9): 1195-1201
Enzymatic release of phosphate in sediments of various origins
Enzymatic liberation of molybdate reactive phosphorus (MRP)(equivalent to orthophosphate) from sediment extracts, obtained from sediments sampled from different parts of a subwatershed of Lake Leman, was investigated. Several hydrolytic enzymes; alkaline phosphatase, phosphodiesterase, RNase, DNase and phytase were used alone or in combination. As expected the release of MRP by combination of alkaline phosphatase with the other enzymes was more efficient than by alkaline phosphatase alone. In all cases, MRP enzymatically released accounted for less than 4% of the total phosphorus in the sediment but represented between 5 and 23% of the organic phosphorus. The highest percentage was obtained with the sediments polluted by domestic sewage. Traces of MRP were liberated by phytase only with the sediment of forest and agricultural origin. Phosphomonoesters were detected in each sediment as well as nucleic acids (except in the natural sediment). This study has shown that it seems possible to characterize organic phosphorus of sediments using this procedure.

Accession: 007306407

DOI: 10.1016/0043-1354(92)90180-c

Download PDF Full Text: Enzymatic release of phosphate in sediments of various origins

Related references

Controlling phosphate release from phosphate-enriched sediments by adding various iron compounds. Biogeochemistry (Dordrecht) 54(2): 219-228, 2001

Presence of and phosphate release from polyphosphates or phytate phosphate in lake sediments. Hydrobiologia 364(1): 99-104, 1997 ( ), 1998

Enzymatic release of bacteria from sands and marine sediments. Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences Serie D Sciences Naturelles 290(22): 1421-1424, 1980

Measurement of enzymatic solubilization of pom in marine sediments by using dye release techniques. Ergebnisse der Limnologie (31): 353-364, 1988

The influence of ph on phosphate release from lake sediments. Water Research 25(3): 309-312, 1991

Enzymatic release of phosphate from rat molar enamel by phosphoprotein phosphatase. Nature 223(5205): 520-521, 1969

Release of 2 deoxyribose 5 phosphate from 5 termini of damaged dna by enzymatic hydrolysis. 1988

Phosphate release from anoxic sediments or 'what did Mortimer really write?'. Hydrobiologia (450): 99-106, 1 May, 2001

New assay for enzymatic phosphate release: application to aspartate transcarbamylase and other enzymes. Analytical Biochemistry 132(2): 259-264, 1983

Enzymatic release of phosphate in water from subarctic lakes in northern sweden. Hydrobiologia 56(2): 175-180, 1977