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1

Czynniki kształtujące zawartość i formy arsenu w glebach aglomeracji lubelskiej

100%
Plak A.
Acta Agrophysica. Rozprawy i Monografie
|
2007
|
nr 3[149]
2

Buffer capacity of soil as indicator of urban forest soil resistance to degradation

51%
Bartmanski P., Plak A., Debicki R.
Polish Journal of Soil Science
|
2012
|
tom 45
|
nr 2
The aim of the study was to evaluate urban forest soil resistance to degradation caused by intensive anthropopressure by determination of buffer capacity. The study covered six soil profiles located in two forest complexes situated within the boundaries of the City of Lublin with reference to benchmark profiles. The material compiled for the study represented loessive soils and rusty sandy soils. The basic properties were determined for soil samples. Buffer capacity was determined by the Arrhenius method. The loessive soils were found to have higher buffer capacity (resistance to acidification and alkalinisation) as compared to the rusty soils. The decisive factor for buffer capacity of soils is the nature of their mineral part. Since the reference of the deliverables of the study regarding urban forest soils to benchmark profiles shows, degradation of soil is taking place within the agglomeration.
3

Influence of land use on the content of select forms of Cd, Cr, Cu, Ni, Pb, and Zn in urban soils

51%
Plak A., Chodorowski J., Melke J., Bis M.
Polish Journal of Environmental Studies
|
2015
|
tom 24
|
nr 6
4

The influence of the grain size distribution of dystric Cambisols on the content of various forms of cadmium, lead, and manganese

51%
Melke J., Plak A., Chodorowski J., Uziak S.
Polish Journal of Soil Science
|
2008
|
tom 41
|
nr 1
35-49
The analysis of distribution of various forms of Cd, Pb, and Mn in the profile was carried out in Dystric Cambisols on the example of the Western Bieszczady soils (SE Poland). In the soil material, the grain size distribution was determined and the sequential analysis of cadmium, lead, and manganese was performed resulting in the following forms: F1 – exchangeable form; F2 – form bound with organic matter; F3 – form bound with manganese oxides; F4 – form bound with slightly crystalline iron oxides; F5 – form bound with crystalline iron oxides; F6 – residue. The contents of produced forms (Cd, Pb, Mn) determined in the particular textural groups differ substantially. The residual forms of cadmium, lead, and manganese dominated in almost all the textural groups of the soils examined. Also lead in the form bound with amorphous iron oxides showed an increased concentration in all the textural groups. The smallest content of lead and cadmium was determined in the form bound with manganese oxides, whereas the smallest content of manganese was determined in the form bound with organic matter.
5

Selected geochemical criteria in mire profiles of Poreby Wojslawskie (Sandomierz Basin, Poland SE)

51%
Plak A., Chodorowski J., Pidek I. A., Dobrowolski J.
Polish Journal of Soil Science
|
2015
|
tom 48
|
nr 1
The geochemical analysis of biogenic sediments was used to reconstruct environmental conditions and the impact of human activity from a small mire geo-system in the Sandomierz Basin (Poland SE). Changes in the nature of selected geochemical indicators show a significant impact on the transformation of the mire during the early stages of human activity. It is reflected in the geochemical record by means of a high proportion of heavy metals – cadmium, lead and copper. Evident variability of main geochemical components concentration is also visible in a vertical record of analysed cores. This is a consequence of the sedimentary basin asymmetric configuration and the ensuing variable biogenic sedimentary succession.
6

Aneuploidia chromosomu 21: najważniejsze czynniki ryzyka

51%
Plak A., Gajek G., Blaszczyk A.
Postępy Biologii Komórki
|
2015
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tom 42
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nr 4
7

Accumulation of heavy metals (Cd, Cr, Cu, Pb, Zn) in soils and grass swards in roads of Lublin city

51%
Plak A., Bartminski P., Debicki R., Bis M.
Polish Journal of Soil Science
|
2012
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tom 45
|
nr 2
The aim of this study has been to determine the level of contamination of the soils and grass swards abutting the selected busiest traffic routes of Lublin City with heavy metals: Cu, Cd, Cr, Pb, Zn. 36 surface soil samples (0–20 cm) and grass swards (roots and above ground parts) were collected. The goal of the research has been to assess the impact of road traffic on the content of heavy metals and to determine indicators of migration between the soil and the plant based on the enrichment factor. The examined soils were characterized by a high content of heavy metals, on average: Cu 80.14 mg kg⁻¹, Cd 0.97 mg kg⁻¹, Cr 12.80 mg kg⁻¹, Pb 56.89 mg kg⁻¹, Zn 87.31 mg kg⁻¹. Grass swards in the immediate vicinity of the examined roads had the following average content of heavy metals: Cu 46.91 mg kg⁻¹, Cd 1.41 mg kg⁻¹, Cr 16.36 mg kg⁻¹, Pb 15.05 mg kg⁻¹, Zn 129.01 mg kg⁻¹. The accumulation of heavy metals in the experimental soils and plants was varied. The impact of the content of heavy metals designated in the soils on their concentration in the grass swards collected from the busiest traffic routes in Lublin were considered to be significant.
8
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Localization and activity of lipoxygenase in Cd-treated seedlings of Phaseolus coccineus

45%
Skorzynska-Polit E., Pawlikowska-Pawlega B., Szczuka E., Plak A., Melke J.
Acta Societatis Botanicorum Poloniae
|
2005
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tom 74
|
nr 3
Lipoxygenase was localized in the primary leaves of Phaseolus coccineus (L.), seedlings treated with 25 µM Cd and in control plants using the immunogold method. The enzyme was localized mainly in the peripheral parts of protoplast of control plant cells. It was found in the cell wall, along the ER elements, at plastid lamellae and inside the mitochondria. In Cd-treated seedlings the elements of parenchyma cells showed an atypical inner structure. The immunolabelling of LOX was less intensive in comparison with control. The enzyme was found in the cytoplasm, at the cell wall area, vacuoles and in the plastid stroma as single gold particles. LOX activity optima were determined at pH 7.0 and 8.0 for both linoleic and linolenic acid used as substrates. After 2 days of seedlings exposure to Cd the activity of LOX decreased at pH 7.0 and 8.0 when linoleic acid was used as substrate, and strongly declined at pH 7.0 after 4 days of the metal treatment. When linolenic acid was the substrate LOX activity slightly increased after 2 days of the plants exposure to Cd, but after 4 days it rapidly decreased at pH 7.0. The changes in LOX activity are discussed.
9
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Evaluation of species inter-relations and soil conditions in Arnica montana L. habitats: a step towards active protection of endangered and high-valued medicinal plant species in NE Poland

39%
Sugier P., Kolos A., Wolkowycki D., Sugier D., Plak A., Sozinov O.
Acta Societatis Botanicorum Poloniae
|
2018
|
tom 87
|
nr 3
Arnica montana L. is a critically endangered and highly valued medicinal plant species in Europe. We show the inter-relationships between arnica and accompanying plant species, as well as soil factors, that promote the persistence of the studied forest arnica populations in terms of active protection of this species in the northeast region of Europe. The population characteristics and plant species composition were assessed during a field study. Additionally, soil samples were taken and analyzed to assess variation in soil conditions in the habitats of arnica populations. Correlations between population characteristics and soil properties were highlighted. The forest habitats of arnica presented in this study differ from those described in other European mountain and submountain areas. The sandy and very poor soils are characterized by a very low content of macro- and microelements, and a strong acid reaction. The positive correlation between population characteristics and Ca and K indicates an important role of these macroelements in flower head production. Acidity, K, Ca, the sum of exchangeable bases, and base saturation play crucial roles in the persistence of arnica populations in pine forests. The level of acidity and its consequences result from soil-forming processes and climatic conditions rather than air pollution. When planning active protection scenarios, special attention should be paid to the frequency and cover of Vaccinium myrtillus, which can act as a competitor in forest habitats. Assessment of soil conditions that favor the persistence of the studied arnica populations and species relationships is important for improving knowledge of the ecology of the species and for the active protection of endangered plant species.
10
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Cadmium accumulation and localization in the leaves of two ecotypes of Dianthus carthusianorum differing in metal tolerance

39%
Wojcik M., Dresler S., Nowak D., Nowak J., Plak A., Hanaka A., Tukiendorf A.
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
|
2013
|
tom 94
|
nr 3
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