Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 8 of 8 for “"phosphomonoesterase"”.
-
The individual and simultaneous effects of Cu and cypermethrin upon glycosidase, phosphomonoesterase and the total microbial activity of soil.
… disturbance. This study chose β- glycosidase, phosphomonoesterase and the total microbial activity of soil to establish the chemical disturbance of pyrethroid insecticide cypermethrin and CuSO4, the main chemical component of widely used Bordeaux mixture. Both were applied individually and as a …
-
Soil phosphatases: factors affecting enzyme activity in Arctic tussock tundra and Virginia mineral soils
… concentration, and orthophosphate on abiontic phosphomonoesterase activity was examined in disturbed and undisturbed Arctic soils with variable moisture content and in Virginia forest, grassland and agricultural soils. Distribution of acid and alkaline phosphatases was related to soil pH. The …
-
Heterologous Expression of Arabidopsis Thaliana Purple Acid Phosphatase Gene (Atpap15) in Crops for Phytoremediation of Sites Contaminated with Excess Phosphorus
… has been shown to exhibit both phytase and phosphomonoesterase activities in acidic pH with maximal activity at pH 4.5. AtPAP15 is a phosphorus starvation inducible (PSI) gene that is expressed highly during phosphorus deficient conditions. In the current study, AtPAP15 was overexpressed in …
-
Isolation and Characterization of Soybean Genes Involved in Phytic Acid Metabolism: Phytase and 1-L-myo-Inositol-1-Phosphate Synthase
… (PAPs) and contained the conserved metallo-phosphomonoesterase active site motif. The soybean phytase coding sequence was placed under the control of a constitutive 35S CaMV promoter in a soybean biolistic transformation vector and was introduced into "Williams 82" suspension culture cells …
-
The role of acid phosphatases in the phosphorus nutrition of arctic tundra plants
The acid phosphomonoesterase activity associated with two major rooting strategies in arctic tundra plants was examined: that of Eriophorum vagina tum, a dominant plant in tussock tundra ecosystems, with its predominantly non-mycorrhizal root system; and that of ectomycorrhizal roots. Eriophorum …
-
Measurement of Phytase Activity in a Clymer Forest Soil Using the TInsP5 Probe
… and delineation of the impact of this important phosphomonoesterase on the P-cycling process in soil and sediments suffer from the lack of a reliable assay. A method for measuring PA in soil that promises to be accurate and reliable has been recently published. The method involves the use of a …
-
Soil phosphatase activity: sources of variability and relationships with phosphorus fractions
… by soil organisms. This M.S. thesis addresses phosphomonoesterase (PME), a phosphatase that catalyzes the terminal step of Po mineralization. The rate of catalysis by soil PME, often referred to as activity, has been measured widely. However, soil PME activity assay faces challenges in the …
-
Biodiversity of ciliated protozoa in soil ecosystems and assessment of their potential as bio-indicators of soil quality.
… concentrations of K and S and activity of acid-phosphomonoesterase in the three ecosystems together were found. Interestingly, strong negative correlations between ciliate species richness and available concentrations of measured trace metals were shown in the natural soil only. Copper at the …