Nanoparticles as sorbents of metals/metalloids: implications for plant physiology

Didac Barroso

Master's thesis

Nanočástice jsou sorbenty kovů / metaloidů: důsledky pro fyziologie rostlin

Anotácia:

Omlouvám se , ale já nejsem schopen mluvit česky

Abstract:

Nanoparticles (NPs) have become an important option for the soil remediation in recent years. Many investigations have been done to determine the potential applicability of NPs for fixing or modifying the availability of contaminants such as metal(loid)s. However, physical and chemical interactions between NPs and living organisms in soils have not been properly studied yet. The application of NPs for remediation could also become a secondary contamination problem if all factors are not taken in consideration. In the following work, the promising NP nanomaghemite (NM) has been evaluated during its interaction with a bioremediation model plant, sunflower (Helianthus annuus), in a hydroponic experiment describing the root water transport, nutrients uptake and metabolic effects for the plants. Significant water uptake reduction has been found by the roots, causing the subsequent reduction of macronutrients presence in the shoots, with important effects in the energetic plant metabolism. This study will provide useful information for the combined use of NM and crops during soil remediation tasks.

Kľúčové slová

Nanočástice, Fytoremediace, Helianthus annuus

Keywords

nanoparcticles, phytoremediation, Helianthus annuus

Jazyk práce: English

Datum vytvoření / odevzdání či podání práce: 20. 5. 2015

Obhajoba závěrečné práce

• Vedúci: Domingo Martínez-Fernández
• Oponent: Mercedes García Sánchez

Czech University of Life Sciences Prague

Faculty of Environmental Science

Master programme / odbor:
Foreign students / Exchange programs