Physiological studies on trematodes: phosphatase systems in Gastrothylax crumenifer

Parasitology ◽  
1966 ◽  
Vol 56 (1) ◽  
pp. 105-110 ◽  
Author(s):  
Madan M. Goil
Keyword(s):  
Acid Phosphatase ◽  
Phosphatase Activity ◽  
Acid Phosphatase Activity ◽  
Maximum Activity ◽  
Fluoride Ions ◽  
Gastrothylax Crumenifer ◽  
Biochemical Studies ◽  
Physiological Studies ◽  
Phosphatase Enzyme

Biochemical studies on the phosphatase systems of Gastrothylax crumenifer have been made. The maximum activity of the phosphatase enzyme was found to be at 5 pH. The action of magnesium and fluoride ions on the acid phosphatase activity shows that both act as inhibitors. The day-to-day variation in the phosphatase activity of the samples, as measured by block differences, was found to be significant at different pH levels. The heat denatured extract showed low and fairly constant acid phosphatase activity.

scholarly journals Aluminum phosphate visualisation of acid phosphatase activity: a biochemical and x-ray microanalysis study.

1982 ◽  
Vol 30 (1) ◽  
pp. 86-90 ◽  
Author(s):  
J P Berry ◽  
J Hourdry ◽  
M Sternberg ◽  
P Galle
Keyword(s):  
Acid Phosphatase ◽  
Phosphatase Activity ◽  
Acid Phosphatase Activity ◽  
Rat Kidney ◽  
Aluminum Phosphate ◽  
Proximal Tubules ◽  
New Method ◽  
X Ray ◽  
Biochemical Studies

A new method is described that demonstrates acid phosphatase activity in the cells of the proximal tubules of the rat kidney. The method is based on the formation of an insoluble aluminum phosphate precipitate. Microanalysis was used to demonstrate the presence of intracellular aluminum and determine the quantity present under the probe. Parallel biochemical studies showed that the aluminum precipitate was indeed due to acid phosphatase activity.

scholarly journals Aluminium induced acid phosphatase activity in roots of Al-sensitive and Al-tolerant barley varieties

2011 ◽  
Vol 48 (No. 12) ◽  
pp. 556-559 ◽  
Author(s):  
J. Huttová ◽  
L. Tamás ◽  
I. Mistrík
Keyword(s):  
Acid Phosphatase ◽  
Phosphatase Activity ◽  
Acid Phosphatase Activity ◽  
Deficiency Syndrome ◽  
Phosphate Deficiency ◽  
Steep Increase ◽  
Barley Cultivars ◽  
Induced Changes ◽  
Al Treatment ◽  
Phosphatase Enzyme

In barley roots significant increase of acid phosphatase activity was observed during Al treatment. Especially steep increase was found in the roots of Al-sensitive cv. Alfor treated with Al in the range of 1–10mM which was followed by sudden decline when higher concentration (10–100mM) was applied. Continual, but significantly lower increase in phosphatase activity was also demonstrated in the roots of Al-tolerant cv. Bavaria in the range of 1–50mM Al. In both cases, Al-induced increase of acid phosphatase activity was accompanied by the increase in the amount of one phosphatase isoforme. Contrary to cv. Alfor where Al-induced changes reached their maximum in the first day of Al treatment in the Al-tolerant cv. Bavaria slight increase continued also on the second day of Al treatment. Our results indicate that different behaviour of acid phosphatase enzyme in barley cultivars during Al stress may play an important function in coping by the plants with Al induced phosphate deficiency syndrome.

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).

Tartrate-resistant acid phosphatase activity and glutathione levels are modulated during hFOB 1.19 osteoblastic differentiation

2008 ◽  
Vol 39 (6) ◽  
pp. 627-634 ◽  
Author(s):  
Tatiana Salles de Souza Malaspina ◽  
Célio Xavier dos Santos ◽  
Ana Paula Campanelli ◽  
Francisco Rafael Martins Laurindo ◽  
Mari Cleide Sogayar ◽  
...  
Keyword(s):  
Acid Phosphatase ◽  
Phosphatase Activity ◽  
Acid Phosphatase Activity ◽  
Osteoblastic Differentiation ◽  
Tartrate Resistant Acid Phosphatase
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