scholarly journals Distribution of alkaline and acid phosphatases in the duodenal wall of native sheep by using different fixatives

2010 ◽  
Vol 24 (2) ◽  
pp. 65-72
Author(s):  
N. S. Ahmed
Keyword(s):  
Duodenal Wall ◽  
Acid Phosphatases ◽  
Native Sheep ◽  
Alkaline And Acid Phosphatases

The ultrastructure and histochemistry of the cyst wall of Bucephalus haimeanus (Lacaze-Duthiers, 1854)

Parasitology ◽  
1977 ◽  
Vol 75 (2) ◽  
pp. 207-214 ◽  
Author(s):  
Jacqueline C. Higgins ◽  
D. E. Wright ◽  
R. A. Matthews
Keyword(s):  
Cyst Wall ◽  
Protein Complexes ◽  
Middle Layer ◽  
Outer Edge ◽  
Acid Phosphatases ◽  
Free Aldehyde ◽  
Aldehyde Groups ◽  
And Function ◽  
Cyst Cavity ◽  
Alkaline And Acid Phosphatases

Metacercarial cysts of Bucephalus haimeanus occur throughout the liver of Pomatoschistus microps, greater concentrations being found around the gall bladder, blood vessels and periphery of the liver. The cyst wall is composed of three layers, an inner granular, middle vacuolated and outer nucleated layer. The inner layer consists of three zones, an inner zone of irregularly compacted, granular material; a middle densely compacted zone and an outer moderately compacted zone. Vacuoles of the middle layer vary in appearance and appear to be discharging their contents into the cyst cavity. The cells of the outer layer are flattened and elongated with elongate nuclei but no other distinct organelles. Occasionally at the outer edge of the cyst are electron-dense cells which are in the process of degeneration. Only small amounts of collagen and very few leucocytes are associated with the cysts.The cyst wall is carbohydrate in nature containing some free aldehyde groups, galactogen and neutral mucosubstances. The inner layer appears to consist of mainly acidic mucopolysubstances and weakly acidic sulphomucins. Large amounts of protein, carbohydrate-protein complexes and DNA are also present within the cyst wall. Alkaline and acid phosphatases, ATPase, β-glucuronidase and N-acetyl-β-glucosaminidase were detected. The origin and function of the cyst wall is discussed.

Effect of cadmium and aluminum on bone alkaline and acid phosphatases

1983 ◽  
Vol 31 (4) ◽  
pp. 386-390 ◽  
Author(s):  
Naoki Sugawara ◽  
Terukazu Sadamoto ◽  
Chieko Sugawara
Keyword(s):  
Acid Phosphatases ◽  
Alkaline And Acid Phosphatases

Soil microbial activity as influenced by compaction and straw mulching

2012 ◽  
Vol 26 (1) ◽  
pp. 65-69 ◽  
Author(s):  
A. Siczek ◽  
M. Frąc
Keyword(s):  
Microbial Activity ◽  
Soil Compaction ◽  
Soil Microbial Activity ◽  
Acid Phosphatases ◽  
Compacted Soil ◽  
Straw Mulching ◽  
Soil Microbial ◽  
Total Bacteria ◽  
Alkaline And Acid Phosphatases ◽  
Stimulation Of

Soil microbial activity as influenced by compaction and straw mulchingField study was performed on Haplic Luvisol soil to determine the effects of soil compaction and straw mulching on microbial parameters of soil under soybean. Treatments with different compaction were established on unmulched and mulched with straw soil. The effect of soil compaction and straw mulching on the total bacteria number and activities of dehydrogenases, protease, alkaline and acid phosphatases was studied. The results of study indicated the decrease of enzymes activities in strongly compacted soil and their increase in medium compacted soil as compared to no-compacted treatment. Mulch application caused stimulation of the bacteria total number and enzymatic activity in the soil under all compaction levels. Compaction and mulch effects were significant for all analyzed microbial parameters (P<0.001).

Role of oesophageal glands in the digestive physiology of two rumen amphistomesOrthocoelium scoliocoeliumandParamphistomum cervi

1983 ◽  
Vol 57 (1) ◽  
pp. 11-20 ◽  
Author(s):  
P. N. Sharma ◽  
C. Hora
Keyword(s):  
Chemical Composition ◽  
Hydrolytic Enzymes ◽  
Acid Phosphatases ◽  
Digestive Physiology ◽  
Cathepsin C ◽  
Oesophageal Gland ◽  
Paramphistomum Cervi ◽  
Alkaline And Acid Phosphatases

AbstractHistochemical techniques have been used to study the chemical composition of the oesophageal gland secretions ofOrthocoelium scoliocoeliumandParamphistomum cervi. Results suggest that the secretions contain numerous enzymes, e.g., non-specific alkaline and acid phosphatases, ATPase, TPPase, esterase (Cathepsin C like), β-galactosidase, β-glucuronidase and N-acetyl-β-glucosaminidase. The role of these enzymes in the digestion of food in these amphistomes is discussed.On the basis of histological and histochemical studies the caecal epithelium of the two amphistomes has been found to be syncytial bearing regularly arranged numerous, long but equal-sized and closely packed cylindrical microvilli. The role of various hydrolytic enzymes in well fed and starved flukes in relation to their gastrodermis and microvilli has also been discussed.

Sign in / Sign up

Export Citation Format

Share Document