Papers by Beata Piršelová
Chemicke Listy, 2018
The study of the impact of toxic substances on organisms is currently being given great attention... more The study of the impact of toxic substances on organisms is currently being given great attention, while the studies of the positive effect of low doses of these substances on the organisms (the so-called hormesis) also constantly appear. A typical hormetic response in plants is caused, in particular, by non-essential, toxic and trace elements. Although the knowledge about mechanisms of hormesis is growing, the phenomenon is not sufficiently explained so far. Some trace elements, such as arsenic, mercury and cadmium, can be powerful elicitors of activation of plant defence mechanisms against various types of stressors, but their practical application as hormesis agents is limited due to the fear for the environment and to the narrow range between stimulatory and toxic concentrations. More thorough biochemical, molecular and biological analyses can help clarify other mechanisms of hormesis, which may extend possible practical applications.
Plants, 2021
The present study aimed to analyze the differences in the tolerance of fava bean (Vicia faba cv. ... more The present study aimed to analyze the differences in the tolerance of fava bean (Vicia faba cv. Aštar) roots to cadmium in nitrate—Cd(NO3)2—and chloride—CdCl2—solutions. The physiological and biochemical parameters were assessed. The tested doses of Cd (50, 100, 150 and 300 mg/L) did not influence the germination of seeds. However, considerable growth inhibition and dehydration were observed after 96 h incubation. The thickness of roots and rupture of cell membranes increased along with the increasing concentration of the metal in the solution. At a Cd dose of 300 mg/L, irrespective of the solution used, increased nitrogen concentration and no change in sodium content were observed. The content of magnesium increased due to the dose of 100 mg/L (cadmium nitrate) and the content of calcium increased due to the dose of 300 mg/L (in either nitrate or chloride). The correlation analyses pointed to a possible effect of nitrates in the applied solutions on the accumulation of Cd and some...
Impact of Cadmium Toxicity on Leaf Area and Stomatal Characteristics in Faba Bean
Journal of Microbiology, Biotechnology and Food Sciences
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Papers by Beata Piršelová