Sulfate supplementation affects nutrient and photosynthetic status of Arabidopsis thaliana and Nicotiana tabacum differently under prolonged exposure to cadmium

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Publikace nespadá pod Filozofickou fakultu, ale pod Středoevropský technologický institut. Oficiální stránka publikace je na webu muni.cz.
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LYČKA Martin BARTÁK Miloš HELIA Ondřej KOPRIVA Stanislav MORAVCOVÁ Dana HÁJEK Josef FOJT Lukáš ČMELÍK Richard FAJKUS Jiří FOJTOVÁ Miloslava

Rok publikování 2023
Druh Článek v odborném periodiku
Časopis / Zdroj Journal of Hazardous Materials
Fakulta / Pracoviště MU

Středoevropský technologický institut

Citace
www https://doi.org/10.1016/j.jhazmat.2022.130527
Doi http://dx.doi.org/10.1016/j.jhazmat.2022.130527
Klíčová slova Cadmium; Sulfate; Heavy metal stress; Arabidopsis thaliana; Nicotiana tabacum
Popis Hydroponic experiments were performed to examine the effect of prolonged sulfate limitation combined with cadmium (Cd) exposure in Arabidopsis thaliana and a potential Cd hyperaccumulator, Nicotiana tabacum. Low sulfate treatments (20 and 40 mu M MgSO4) and Cd stress (4 mu M CdCl2) showed adverse effects on morphology, photosynthetic and biochemical parameters and the nutritional status of both species. For example, Cd stress decreased NO3 - root content under 20 mu M MgSO4 to approximately 50% compared with respective controls. Interestingly, changes in many measured parameters, such as chlorophyll and carotenoid contents, the concentrations of anions, nutrients and Cd, induced by low sulfate supply, Cd exposure or a combination of both factors, were species-specific. Our data showed opposing effects of Cd exposure on Ca, Fe, Mn, Cu and Zn levels in roots of the studied plants. In A. thaliana, levels of glutathione, phytochelatins and glucosinolates demonstrated their distinct involvement in response to sub-optimal growth conditions and Cd stress. In shoot, the levels of phytochelatins and glucosinolates in the organic sulfur fraction were not dependent on sulfate supply under Cd stress. Altogether, our data showed both common and species-specific features of the complex plant response to prolonged sulfate deprivation and/or Cd exposure.
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