Wyniki wyszukiwania

1

Regulacja aktywności amoniakoliazy L-fenyloalaniny i poziomu czerwonych pigmentów w roslinach przez kwas 1-amino-2-fenyloetylofosfoniowy

100%

Janas K.

Postępy Biochemii

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1989

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tom 35

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nr 1-2

2

Obserwatorium Polityki Miejskiej IRM - wiedza o miastach w jednym miejscu

63%

Janas K., Salata-Kochanowski P.

Problemy Rozwoju Miast

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2016

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tom 13

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nr 4

3

Barwnik zwierzęcy - bilirubina występuje też u roślin

51%

Kepka E., Kluba A., Janas K.

Ekonatura

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2011

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nr 08

4

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

New localities of Vertigo angustior in the southern part of Mazovian voivodeship

51%

Grochowska A., Janas K., Struzynski W.

Folia Malacologica

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2010

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tom 18

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nr 3

5

Effect of increased copper concentrations on deformations of the regenerates of carrot obtained from androgenetic embryos

51%

Kowalska U., Gorecki R., Janas K., Gorecka K.

Vegetable Crops Research Bulletin

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2009

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tom 71

6

Effect of rodents on the primary productivity of alpine meadows in Bieszczady Mountains

51%

Grodzinski W., Gorecki A., Janas K., Migula P.

Acta Theriologica

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1966

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tom 11

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nr 10-20

7

The influence of anthocyanins on Vicia faba root tip cells

51%

Kontek R., Posmyk M. M., Osiecka R., Janas K.

Biological Letters

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2005

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tom 42

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nr 2 Spec.Vol.

8

Effect of increased copper ion content in the medium on the regeneration of androgenetic embryos of carrot (Daucus carota L.)

39%

Kowalska U., Szafranska K., Krzyzanowska D., Kiszczak W., Gorecki R., Janas K., Gorecka K.

Acta Agrobotanica

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2012

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tom 65

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nr 2

The study was conducted to determine the effect of elevated concentrations of copper in the medium on the regeneration of androgenetic embryos of the carrot cultivar ‘Kazan F1’ obtained in anther cultures and to determine the level of soluble phenols produced in the regenerates under copper stress. Green embryos were laid out on 4 regeneration media based on B5 medium (G a m b o r g et al. 1968) without hormones, containing 0.1 – control, 1, 10, and 100 μM CuSO4×5H2O. The plant material was passaged 3 times, after 4, 9 and 15 weeks. During these passages the emerging structures were examined; they were classified in terms of growth and development in vitro, weighed and counted. The levels of soluble phenols in the freeze-dried regenerates were determined. The elevated concentrations of copper in the regeneration media affected positively the formation of complete plants (rooted rosettes) and secondary embryos during the first 4 weeks of culture. After a longer regeneration time (9, 15 weeks), the elevated concentrations of copper caused negative effects: deformation of rosettes. After 15 weeks, the number of rooted rosettes decreased. The 9-week culture subjected to copper stress brought about an increase in the amounts of soluble phenols. The highest values were recorded in the rosettes treated with 10 μM CuSO4. Prolonged exposure to media containing elevated concentrations of CuSO4 caused a reduction in the accumulation of phenolic compounds in the rosettes.

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