Wyniki wyszukiwania - Biblioteka Nauki

1

Ultrastruktura wiazek przewodzacych w lisciu oraz zaladowanie floemu a ewolucja roslin okrytonasiennych

100%

Sowinski P.

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tom 47

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nr 1-2

19-26

2

Rola lekarza weterynarii w pracy ze zwierzętami laboratoryjnymi

100%

Sowinski P.

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nr 10

3

Adaptacja technologii laminarnej w chirurgii mózgowej noworodków myszy z niedoborem odpornościowym (NodScid)

100%

Sowinski P.

|

tom 66

4

Wrazliwosc kukurydzy na chlod. Cz.II. System korzeniowy, regulacja funkcjonowania rosliny, perspektywy hodowli

100%

Sowinski P.

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nr 214

17-29

5

Molecular mechanisms of maize response to cold

100%

Sowinski P.

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tom 40

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nr 11-11th International Conference Plant Functioning under Environmental Stress...

6

The effect of irradiance, p-chloromercuribenzenesulphonic acid and fusicoccin on the long distance transport in Zea mays L. seedlings

100%

Sowinski P.

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tom 20

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nr 1

EN

The system consisting of a few proportional detectors with appropriate electronic components was earlier developed for in vivo studies of long distance transport in whole maize seedlings. ¹⁴CO₂ assimilation rate (Pa), time of radioactivity appearing in the loading region (AT), transport speed in the leaf (TSl), transport speed between the leaf and the roots (TSr), the maximum radioactivity values detected in the leaf below the feeding area (Rl) and in the mesocotyl (Rr) from leaves to roots in maize seedlings were calculated from the obtained temporal profiles of radioactivity. The study was undertaken to follow the changes in separate steps of long distance transport in maize seedlings as affected by two light irradiances and application of p-chloromercuribenzenesulphonic acid and fusicoccin, with the aim to investigate different steps of long distance transport, particularly phloem loading. The method used allows to study in vivo the different aspects of long distance transport in maize seedlings, both qualitatively and quantitatively. It was shown that the characteristics obtained from the radioactivity profiles corresponded to different steps of long distance transport, as assimilate synthesis, phloem loading, and phloem translocation. It was also demonstrated that although active phloem loading participate in assimilate export from the leaves, assimilate transport along the maize seedling might undergo accordingly to assimilate gradient, particularly under light irradiance higher than during the growth.

7

Chillingensitivity in maize seedlings. II. Effect of low temperature on transport of 14 C-assimilates from leaves to roots

63%

Sowinski P. , Maleszewski S.

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1990

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tom 12

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nr 1

8

In search for the mechanism of C4 photosynthesis intermediate exchange between Kranz mesophyll and bundle sheath cells in grasses

63%

Szczepanik J. , Sowinski P.

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nr 2

9

Dynamika wilgotnosci w glebach rezerwatu wierzbowo-topolowego Kepa Bazarowa w Toruniu

63%

Bednarek R. , Sowinski P.

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nr 09

205-219

10

Changes in ultrastructure of maize seedling leaf induced by growth at sub-optimal temperatures in relation to photosynthesis and assimilate export

63%

Bilska A. , Sowinski P.

|

tom 01

11

Electron tomography technique – useful tool for plasmodesmata ultrastructure analysis in maize leaves

51%

Bilska A. , Suski S. , Sowinski P.

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nr 3

12

Wlasciwosci gleb obnizen srodmorenowych Pojezierza Mazurskiego

51%

Orzechowski M. , Smolczynski S. , Sowinski P.

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tom 476

229-235

PL

W glebach obniżeń śródmorenowych krajobrazu młodoglacjalnego Pojezierza Mazurskiego zbadano uziarnienie, odczyn, gęstość, porowatość ogólną, zawartość węgla i azotu oraz kationów wymiennych. Gleby te reprezentowane są przez gleby deluwialne właściwe, namurszowe i torfowo-murszowe silnie zamulone, których właściwości uległy modyfikacji przez procesy deluwialne. W glebach deluwialnych warstwa deluwium o składzie granulometrycznym glin lekkich i średnich dochodzi do 115 cm. Namuły deluwialne przykrywają powierzchnię gleb organicznych w gleby namurszowe oraz powodują silne zamulenie poziomów murszowych. Wpływają one na zmniejszenie porowatości ogólnej, a zwiększenie gęstości objętościowej w poziomach powierzchniowych w stosunku do warstw torfowych, co ogranicza skutki procesu mineralizacji materii organicznej. Wraz z obniżaniem terenu wzrasta w glebach zawartość azotu, materii organicznej, odczyn, pojemność wymienna kationów (T) oraz udział wapnia w kompleksie sorpcyjnym. Stwierdzona niższa zawartość kationu wapnia, a wyższa wodoru wymiennego w poziomach powierzchniowych niż poziomach głębszych w profilach badanych gleb, wskazuje na proces dekalcytacji.

EN

In the mid-morainal depression soils of the Mazurian Lakeland young glacial landscape, the following parameters were determined: grain size, pH, density, total porosity, carbon concentration, nitrogen and exchangeable cations contents. These soils are represented by proper deluvial soils, muck and strongly silted peat-muck soils, the properties of which were modified by deluvial processes. In deluvial soils the diluvium layer of granulometric composition of light and medium loam the thickness reached up to 115 cm. Deluvial deposits cover the surface of organic soils (in the muck soils) and cause strong silting of muck horizons. These deposits cause reduction of total porosity and increase the bulk density in upper layers in relation to the peat layers. This restrains the process of organic matter mineralization. Along with the terrain lowering, the nitrogen content, organic matter content, pH, exchange cation capacity as well as the percentage of calcium in the sorptive system increase. Lower concentration of calcium and higher concentration of exchangeable hydrogen were found in the upper part of soil profiles what indicates the process of decalcitation.

13

The diversified content of heavy metals in the landscape catenae of the ground moraine in the Mazurian Lakeland

51%

Smolczynski S. , Sowinski P. , Orzechowski M.

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nr 2

EN

The research was conducted on two catenae representing a hilly ground moraine landscape, diversified in terms of size, slope and exploitation, located in the Mazurian Lakeland. Total content of Mn, Zn, Cu, Cd, Pb, Ni, Cr was determined in the soils of the catenae examined. The increase in the content of the heavy metals determined was found in the direction of the central part of the depression. The research indicated that hydrogenic soils of depressions within moraines were the location for the accumulation of heavy metals in the young glacial landscape. No soils were found to have been polluted with heavy metals. Only cadmium exceeded the threshold of its natural content (1 mg kg-1).

14

Modification of gas exchange and carbon assimilation during cold hardening of wheat

51%

Zagdanska B. , Sowinski P. , Srivastava N. K.

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nr 4