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1

Effect of soil moisture on morpho-anatomical leaf traits of Ranunculus acris (Ranunculaceae)

100%
Kolodziejek J., Michlewska S.
Polish Journal of Ecology
|
2015
|
tom 63
|
nr 3
Leaf morphological and anatomical differences between two collection sites in central Poland were examined in tall buttercup Ranunculus acris. We hypothesized that the availability of soil moisture would affect leaf morphological and anatomical traits. The objective of this study was to examine the effect of soil moisture content on: leaf size, epidermal features and on a number of stomatal characteristics in populations of R. acris species. The plants were investigated at sites differing in soil moisture conditions (a dryer upper site and a wetter lower site). Relatively semi-dry and wet sites were identified by plant communities and soil moisture content. We found out that morphological and anatomical leaf traits of R. acris were significantly related to soil moisture content. Leaves from plants growing in the wet site were 26% smaller in size than those from the semi-dry site. The population with smaller leaf area had larger leaf perimeter and higher dissection index. The stomatal index of the leaves sampled in the semi-dry site was higher than that of the leaves sampled in the wet site. Greater leaf thickness in the semi-dry site was primarily the result of increased spongy parenchyma thickness. On the abaxial leaf surface epidermal cell density was significantly higher at the wet site implying more epidermal cells. On the adaxial leaf surface, however, epidermal cell density decreased when plants were exposed to the elevated soil moisture. The results may indicate that soil moisture content influences leaf anatomy and morphology of R. acris. Thus, all these leaf morphoanatomical traits provide a basis for R. acris to reduce water loss from leaves and to balance water use efficiency under reduced precipitation. The present study demonstrates that R. acris can maximize growth in habitats with a wide range of soil moisture availability and such information can be crucial for developing management strategies and predictive models of its spread.
2
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The correlation between size of Beta vulgaris L. flower buds and the stadium of pollen grains development

81%
Gapinska M., Glinska S., Michlewska S.
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
|
2013
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tom 94
|
nr 3
3

Changes in Aspergillus niger mycelium after N,N-bis (3-aminopropyl) dodecylamine treatment

81%
Kozirog A., Brycki B., Michlewska S.
Postępy Mikrobiologii. Suplement
|
2017
|
tom 56
|
nr 3
4
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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The ultrastructure of zinc treated Triticum aestivum L. root meristematic cells

81%
Grzywnowicz K., Glinska S., Gapinska M., Michlewska S.
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
|
2013
|
tom 94
|
nr 3
5

The effect of EDTA and EDDS on lead uptake and localization in hydroponically grown Pisum sativum L.

71%
Glinska S., Michlewska S., Grapinska M., Seliger P., Bartosiewicz R.
Acta Physiologiae Plantarum
|
2014
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tom 36
|
nr 02
Pisum sativum plants were treated for 3 days with an aqueous solution of 100 μM Pb(NO₃)₂ or with a mixture of lead nitrate and ethylenediaminetetraacetic acid (EDTA) or [S,S]-ethylenediaminedisuccinic acid (EDDS) at equimolar concentrations. Lead decline from the incubation media and its accumulation and localization at the morphological and ultrastructural levels as well as plant growth parameters (root growth, root and shoot dry weight) were estimated after 1 and 3 days of treatment. The tested chelators, especially EDTA, significantly diminished Pb uptake by plants as compared to the lead nitrate-treated material. Simultaneously, EDTA significantly enhanced Pb translocation from roots to shoots. In the presence of both chelates, plant growth parameters remained considerably higher than in the case of uncomplexed Pb. Considerable differences between the tested chelators were visible in Pb localization both at the morphological and ultrastructural level. In Pb+EDTA-treated roots, lead was mainly located in the apical parts, while in Pb+EDDS-exposed material Pb was evenly distributed along the whole root length. Transmission electron microscopy and EDS analysis revealed that in meristematic cells of the roots incubated in Pb+EDTA, large electron-dense lead deposits were located in vacuoles and small granules were rarely noticed in cell walls or cytoplasm, while after Pb+EDDS treatment metal deposits were restricted to the border between plasmalemma and cell wall. Such results imply different ways of transport of those complexed Pb forms.
6

Extracellular vesicles secreted by colorectal cancer cell line HT29 overexpressing Snail can fuse with and activate the cells constituting metastatic niche

61%
Popiewska-Pajak I., Przygodzka P., Michlewska S., Krzyzanowski D., Boncela J., Kowalska M. A.
Acta Biochimica Polonica
|
2018
|
tom 65
|
nr S2
7

Antimicrobial, antiadhesive and immunomodulatory activity of linolic acid against H.pylori - a multi level in vitro study

61%
Rudnicka K., Smigielska E., Orkisz N., Mnich E., Michlewska S., Balcerzak L., Chmiela M.
Postępy Mikrobiologii. Suplement
|
2017
|
tom 56
|
nr 1
8

New experimental protocol for the biosafety evaluation of innovative nano materials - a complex in vitro study

42%
Rudnicka K., Mnich E., Gatkowska J., Wieczorek M., Nawrotek K., Tylman M., Nowak K. M., Michlewska S., Pluta K., Sobczak-Kupiec A., Glinska S., Fiedor P., Kosieradzki M., Chmiela M.
Postępy Mikrobiologii. Suplement
|
2017
|
tom 56
|
nr 1
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