Phosphorus and nitrogen fertilization of a Norway spruce forest-effects on needle concentrations and acid phosphatase activity in the humus layer

1995 ◽  
Vol 175 (2) ◽  
pp. 239-249 ◽  
Author(s):  
Marianne Clarholm ◽  
Ulrika Rosengren-Brinck
Keyword(s):  
Acid Phosphatase ◽  
Phosphatase Activity ◽  
Norway Spruce ◽  
Nitrogen Fertilization ◽  
Acid Phosphatase Activity ◽  
Spruce Forest ◽  
Humus Layer ◽  
Norway Spruce Forest

scholarly journals Porównanie aktywności peroksydazy, katalazy i fosfatazy kwaśnej w liściach pora w okresie intensywnego wzrostu i pod koniec wegetacji roślin w rożnych warunkach uprawy [Dynamics of the changes of peroxidase, catalase, and acid phosphatase activities in leeks under the influence of nitrogen fertilization and irrigation]

2015 ◽  
Vol 32 (2) ◽  
pp. 207-221
Author(s):  
E. Gurgul ◽  
E. Kołota ◽  
D. Ściążko
Keyword(s):  
Acid Phosphatase ◽  
Plant Growth ◽  
Phosphatase Activity ◽  
Peroxidase Activity ◽  
Nitrogen Fertilization ◽  
Acid Phosphatase Activity ◽  
Growth Stage ◽  
Large Degree ◽  
Growth And Yield ◽  
High Influence

Results obtained in a field experiment showed a high influence of irrigation and nitrogen fertilization on the activity of peroxidase, while acid phosphatase activity showed only small differences. The peroxidase activity depended to a large degree on the leeks growth stage. Maximum peroxidase, catalase and - in some cases – acid phosphatase activity were found at nitrogen doses higher than optimal for the plant growth and yield.

Biochemical inhibition of acid phosphatase activity in two mountain spruce forest soils

2021 ◽  
Author(s):  
Petr Čapek ◽  
Christopher P. Kasanke ◽  
Robert Starke ◽  
Qian Zhao ◽  
Karolina Tahovská
Keyword(s):  
Acid Phosphatase ◽  
Phosphatase Activity ◽  
Forest Soils ◽  
Acid Phosphatase Activity ◽  
Spruce Forest

Erythrophagocytosis in the Liver in Hemolytic Anemias

1968 ◽  
Vol 26 ◽  
pp. 184-185
Author(s):  
O. T. Minick ◽  
E. Orfei ◽  
F. Volini ◽  
G. Kent
Keyword(s):  
Acid Phosphatase ◽  
Oxidative Damage ◽  
Phosphatase Activity ◽  
Kupffer Cells ◽  
Acid Phosphatase Activity ◽  
Common Type ◽  
Red Cell ◽  
Cell Fragments ◽  
Reticulo Endothelial System ◽  
Important Site

Hemolytic anemias were produced in rats by administering phenylhydrazine or anti-erythrocytic (rooster) serum, the latter having agglutinin and hemolysin titers exceeding 1:1000.Following administration of phenylhydrazine, the erythrocytes undergo oxidative damage and are removed from the circulation by the cells of the reticulo-endothelial system, predominantly by the spleen. With increasing dosage or if animals are splenectomized, the Kupffer cells become an important site of sequestration and are greatly hypertrophied. Whole red cells are the most common type engulfed; they are broken down in digestive vacuoles, as shown by the presence of acid phosphatase activity (Fig. 1). Heinz body material and membranes persist longer than native hemoglobin. With larger doses of phenylhydrazine, erythrocytes undergo intravascular fragmentation, and the particles phagocytized are now mainly red cell fragments of varying sizes (Fig. 2).

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