Phosphatase Enzymes in Soils: Nature and Location of the Enzymes and Phosphorus Immobilization and Mineralization
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Date
1980
Authors
Journal Title
Journal ISSN
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Publisher
Faculty of Agriculture, University of Ife
Abstract
The nature and location of phosphatase enzymes produced by soil microorganisms under different cropping and ecological conditions were evaluated by incubating the supernatant of a 1:10 soil-distilled water suspension for 40 weeks in microbial P- surplus and P- deficient conditions.. At .various time intervals, the cell-free, cell-bound, total dissolved P, dissolved inorganic P and turbidity of the cultures were determined. Results indicated that most of the phosphatase enzymes existed in a cell-bound rather than cell-free state irrespective of the P status of the medium during the first 8 weeks of incubation. Total phosphatase activity showed little tendency to decline with continued incubation However, in all the systems the rate and extent of organic P mineralization varied but was not related to phosphatise activity. Phosphatase activity was also not related to the living biomass in these cultures.
Description
Keywords
Phosphatase enzymes, Soil phosphorus, P-surplus systems, P-deficient systems, Inorganic P immobilization, Organic P mineralization
Citation
Adebayo, Adewale (1980) Phosphatase Enzymes in Soils: Nature and Location of the Enzymes and Phosphorus Immobilization and Mineralization. Ife Journal of Agriculture, 2(2).