Wyniki wyszukiwania

1

The synthesis of inorganic phyrophosphate from ATP and orthophosphate catalyzed by pyruvate kinase from heart and skeletal muscle

100%

Baranowska B., Baranowski T.

Bulletin of the Polish Academy of Sciences. Biological Sciences

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1989

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tom 37

|

nr 7-9

2

Heart pyruvate kinase catalyses the synthesis of ATP from ADP and inorganic pyrophosphate

84%

Baranowska B., Baranowski T.

Bulletin of the Polish Academy of Sciences. Biological Sciences

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1987

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tom 35

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nr 1-3

3

Changes of species diversity of phytoplankton and physicochemical water parameters in annual cycles in the urban Lake Jeziorak Maly

84%

Zebek E.

Oceanological and Hydrobiological Studies

|

2007

|

tom 36

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nr Suppl.1

4

Nucleoside 5'-tetraphosphate hydrolase from human placenta

84%

Pietrowska-Borek M., Szalata M., Guranowski A.

Cellular and Molecular Biology Letters

|

1999

|

tom 04

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nr 3

5

Phytoplankton extracellular phosphatases: investigation using the ELF [Enzyme Labelled Fluorescence] technique

84%

Strojsova A., Vrba J.

Polish Journal of Ecology

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2006

|

tom 54

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nr 4

Phosphorus deficiency is frequently the limiting factor in phytoplankton growth and the major source of selective pressure on single populations in a variety of aquatic environments. Phytoplankton species have several mechanisms that allow them to overcome phosphorus starvation, such as high-affinity uptake of orthophosphate (Pi), stand-by energy metabolism or utilization of phosphorus from stored polyphosphates. This short review is focused on the production of extracellular phosphatases that is usually accompanied by high-affinity uptake of Pi. Extracellular phosphatases are localized on the cell membrane, where they catalyze the liberation of Pi from various organic compounds that are too large to be directly transported into the cell. The production of extracellular phosphatases is not a general response to starvation in phytoplankton; it is a speciesspecific or cell-specific feature. The ELF (Enzyme Labelled Fluorescence) technique enables direct visualization of the sites of enzymatic activity and therefore gives detailed information about the physiological status of natural phytoplankton.

6

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Wielofosforany w żywności. Część VII. Próby rozdziału wielofosforanów dodawanych do żywności na drodze elektroforezy

67%

Wozniak J., Szyszko E.

Roczniki Państwowego Zakładu Higieny

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1963

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tom 14

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nr 6

7

Phosphorus in sediments and pore waters of selected Polish dam reservoirs

67%

Trojanowska A., Jezierski P.

Oceanological and Hydrobiological Studies

|

2011

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tom 40

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nr 2

8

Qualitative and quantitative changes of diatoms with relation to physiochemical water parameters in the littoral zone of the urban Lake Jeziorak Maly

67%

Zebek E.

Oceanological and Hydrobiological Studies

|

2007

|

tom 36

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nr 4

3-22

9

Qualitative and quantitative changes of blue-green algae in response to physicochemical water parameters in the urban Lake Jeziorak Maly

67%

Zebek E.

Oceanological and Hydrobiological Studies

|

2005

|

tom 34

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nr 1

10

Utilization of selected dissolved organic phosphorus compounds by bacteria in lake water under non-limiting orthophosphate conditions

67%

Siuda W., Chrost R. J.

Polish Journal of Environmental Studies

|

2001

|

tom 10

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nr 6

This study presents results on the availability of various organic P compounds for bacteria from mesotrophic Lake Constance. The rates of hydrolysis of all tested compounds added to the analyzed lake water samples did not correlate with assimilation of liberated inorganic P. beta -glycerophosphate and AMP were the most efficiently hydrolysed by bacterial phosphohydrolytic enzymes. The highest specific P uptake was found in water samples supplemented with nucleotides. The fastest increase in bacterial numbers was observed in water samples enriched with DNA, RNA, ATP and phytin. Analysis of discrepancies between rates of hydrolysis, specific P uptake and bacterial growth rates in samples enriched with various organic P compounds suggested that bacterial phosphatases participated substantially in processes of dissolved organic carbon (DOC) compound decomposition in lake water, whereas 5'-nucleotidase was mainly responsible for bacterial P demand.

11

Quantitative changes of Planktolyngbya brevicellularis, Limnothrix redekei and Aphanizomenon gracile in the annual cycle vs. physicochemical water parameters in the urban Lake Jeziorak Maly

67%

Zebek E.

Oceanological and Hydrobiological Studies

|

2006

|

tom 35

|

nr 1

Ograniczanie wyników

The synthesis of inorganic phyrophosphate from ATP and orthophosphate catalyzed by pyruvate kinase from heart and skeletal muscle

Heart pyruvate kinase catalyses the synthesis of ATP from ADP and inorganic pyrophosphate

Changes of species diversity of phytoplankton and physicochemical water parameters in annual cycles in the urban Lake Jeziorak Maly

Nucleoside 5'-tetraphosphate hydrolase from human placenta

Phytoplankton extracellular phosphatases: investigation using the ELF [Enzyme Labelled Fluorescence] technique

Wielofosforany w żywności. Część VII. Próby rozdziału wielofosforanów dodawanych do żywności na drodze elektroforezy

Phosphorus in sediments and pore waters of selected Polish dam reservoirs

Qualitative and quantitative changes of diatoms with relation to physiochemical water parameters in the littoral zone of the urban Lake Jeziorak Maly

Qualitative and quantitative changes of blue-green algae in response to physicochemical water parameters in the urban Lake Jeziorak Maly

Utilization of selected dissolved organic phosphorus compounds by bacteria in lake water under non-limiting orthophosphate conditions

Quantitative changes of Planktolyngbya brevicellularis, Limnothrix redekei and Aphanizomenon gracile in the annual cycle vs. physicochemical water parameters in the urban Lake Jeziorak Maly