Alina Trejgell

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Biochemical and genetic studies have identified peptides that play crucial roles in plant growth and development, including defence mechanisms in response to wounding by pests, the control of cell division and expansion, and pollen self-incompatibility. The first two signalling peptides to be described in plants were tomato systemin and phytosulfokine(More)
The aim of the study was to obtain an efficient system for Carlina acaulis subsp. simplex propagation. The experimental materials were shoot tips, fragments of hipocotyls, cotyledons and roots isolated from 10-day-old seedlings. The explants were transferred to the proliferation medium supplemented with different types of cytokinin: BA (13.3 μM), kinetin(More)
The object of study was the regeneration of Pharbitis nil by direct and indirect organogenesis. From fragments of roots, cotyledons, hypocotyls and epicotyls on Murashige and Skoog nutrient solution (MS) supplemented with naphtalenacetic acid (NAA) or indolylacetic acid (IAA; both at 0.1 mg·dm−3 concentration) in the presence of benzylaminopurine (BAP),(More)
Advances in biotechnology, especially in the field of in vitro culture techniques, led to the development of procedures that can be used as an excellent tool in plant conservation. The present study describes in vitro conservation of Senecio macrophyllus by slow-growth storage. Various sugar treatments, concentration of abscisic acid (ABA), light intensity(More)
The effect of two different iron chelates and iron concentration on multiplication, shoot growth, chlorophyll content and rooting of Carlina onopordifolia were studied in in vitro culture. FeEDTA presented in MS basal medium was replaced by FeEDDHA, which was applied in three concentrations: 93.5, 187.0 and 280.5 mg dm−3 (5.6 mg dm−3, 11.2 and 16.8 mg dm−3(More)
The test strains Bacteroidetes bacterium (Ba), Pseudomonas fluorescens (Pf) and Variovorax sp. (Va) were selected in advance for their in vitro capability for growth promotion of rapeseed in the presence of increased concentrations of Cd, Cu, Pb and Zn in the medium. In the pot experiment, the strains were used for single Ba, Pf, Va or combined Ba + Pf, Ba(More)
Flower buds and anthers of the short-day plant Pharbitis nil were treated either with thermic shock (7 or 35°C) or osmotic/trophic shock (12% sucrose) for 24 h. Explants were transferred either to Murashige and Skoog medium (MS) with addition of 6-benzylaminopurine (BA; 4.4μM) and 6% sucrose or to the same growth medium containing 22 μM BA and 3% sucrose.(More)
Taraxacum pieninicum is an extremely threatened species. It seems that traditional protection methods of this species are insufficient and it is necessary to use biotechnology tools that allow the in vitro storage of plant material. The present study describes in vitro conservation of T. pieninicum by slow-growth storage. Various light conditions and(More)
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