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1

The effect of a single dose of sheep's erythrocytes on the activity of acid phosphatase in lymphocytes of peripheral blood in bursectomized chickens

100%
Graczyk S.
Folia Histochemica et Cytobiologica
|
1984
|
tom 22
|
nr 2
2
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Localization of acid phosphatase activity in the apoplast of root nodules of pea [Pisum sativum]

100%
Sujkowska M., Borucki W., Golinowski W.
Acta Societatis Botanicorum Poloniae
|
2006
|
tom 75
|
nr 1
33-38
Changes in the activity of acid phosphatase (AcPase) in the apoplast of pea root nodule were investigated. The activity was determined using lead and cerium methods. The results indicated a following sequence of AcPase activity appearance during the development of the infection thread: 1) low AcPase activity appears in the outer part of cells of symbiotic bacteria; 2) bacteria show increased AcPase activity, and the enzyme activity appears in the thread walls; 3) activity exhibits also matrix of the infection thread; 4) bacteria just before their release from the infection threads show high AcPase activity; 5) AcPase activity ceases after bacteria transformation into bacteroids. The increase in bacterial AcPase activity may reflect a higher demand for inorganic phosphorus necessary for propagation of the bacteria within the infection threads and/or involved in bacteria release from the infection threads.
3

The influence of detergent SDS and fuel oil on the arylsulphatase and acid phosphatase activity in Gasterosteus aculeatus L.

100%
Drewa G., Chesy M., Chesy G.
Polskie Archiwum Hydrobiologii
|
1999
|
tom 46
|
nr 1
4
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Soil acid phosphomonoesterase activity and phosphorus forms in ancient and post-agricultural black alder [Alnus glutinosa (L.) Gaertn.] woodlands

67%
Orczewska A., Piotrowska A., Lemanowicz J.
Acta Societatis Botanicorum Poloniae
|
2012
|
tom 81
|
nr 2
Black alder, an N-fixing tree is considered to accelerate the availability of phosphorus in soils due to the increased production of phosphatase enzymes, which are responsible for the P release from the litter. Acid phosphatase activity plays a pivotal role in organic P mineralization in forest soils and in making P available to plants. In order to check whether Alnus glutinosa stimulates acid phosphomonoesterase (PHACID) activity, we compared enzyme activities, total P concentration (PTOT), plant-available P (PAVAIL), organic P (PORG) and inorganic P (PINORG), and organic matter content in 27 ancient and 27 post-agricultural alder woods (the latter ones representing different age classes: 11-20, 21-40 and 41-60 years) of soil samples taken from the litter and the mineral layers. Phosphomonoesterase activity, organic matter, PTOT, PINORG and PORG concentrations were significantly higher in ancient alder woods than in the soils of post-agricultural forests. Significant differences in the acid phosphatase activity, organic matter and PAVAIL concentration were noted between the litter and mineral layers within the same forest type. In recent stands the amount of organic matter and phosphatase activity increased significantly with the age of alder stands, although only in the mineral layer of their soils. Phosphomonoesterase activity, organic matter and PAVAIL content were higher in a litter layer and decreased significantly at a mineral depth of the soil. The acid phosphatase activity was significantly correlated with organic matter content in both ancient and recent stands. There was no significant relationship between PHACID activity and any P forms.
5

Effect of nitrogen forms on growth and chemical changes in the rhizosphere of strawberry plants

67%
Sas L., Marschner H., Romheld V., Mercik S.
Acta Physiologiae Plantarum
|
2003
|
tom 25
|
nr 3
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