A5080600182- Heavy metals in environment
- Plant Stress Responses and Tolerance
- Plant Micronutrient Interactions and Effects
- Heavy Metals in Plants
- Aluminum toxicity and tolerance in plants and animals
- X-ray Spectroscopy and Fluorescence Analysis
- Mycorrhizal Fungi and Plant Interactions
- Seed and Plant Biochemistry
- Silicon Effects in Agriculture
- Lichen and fungal ecology
- Geochemistry and Elemental Analysis
- Ion-surface interactions and analysis
- Phytase and its Applications
- Nuclear Physics and Applications
- Magnetic and Electromagnetic Effects
- Food composition and properties
- Plasma Applications and Diagnostics
- Fungal Biology and Applications
- Selenium in Biological Systems
- Mercury impact and mitigation studies
- Electron and X-Ray Spectroscopy Techniques
- Plant Parasitism and Resistance
- Nanoparticles: synthesis and applications
- Laser-induced spectroscopy and plasma
- Light effects on plants
University of Ljubljana
2016-2025
Jožef Stefan Institute
2016-2025
In-Q-Tel
2018
Biotechnical Educational Centre Ljubljana
2012
The microalgae Spirulina may be a popular dietary supplement rich in essential nutrients and vitamins, but oversight of the industry, general, remains limited, increasing incidents adulteration, misbranding, undeclared ingredients together with misleading claims create potential risks. In response, this study characterized elemental, amino acid fatty content commercially available supplements Slovenia using EDXRF, ICP-MS GC-MS compared results their nutritional declaration. gathered data...
ABSTRACT A detailed localization of elements in leaf tissues the field‐collected Cd/Zn hyperaccumulator Thlaspi praecox (Brassicaceae) growing at a highly metal‐polluted site was determined by micro‐proton‐induced X‐ray emission (micro‐PIXE) order to reveal and compare nutrient non‐essential element accumulation patterns case multiple metal within particular tissues, including distribution between apoplast symplast regions. On larger scans, highest concentrations metals were observed...
Mature developed seeds are physiologically and biochemically committed to store nutrients, principally as starch, protein, oils, minerals. The composition distribution of elements inside the aleurone cell layer reflect their biogenesis, structural characteristics, physiological functions. It is therefore primary importance understand mechanisms underlying metal ion accumulation, distribution, storage, bioavailability in subcellular organelles for seed fortification purposes. Synchrotron...
Cadmium and zinc share many similar physiochemical properties, but their compartmentation, complexation impact on other mineral element distribution in plant tissues may drastically differ. In this study, we address the of 10 μm Cd or 50 Zn treatments ion leaves a metallicolous population non-hyperaccumulating species Zygophyllum fabago at tissue cell level, consequences response through combined physiological, proteomic metabolite approach. Micro-proton-induced X-ray emission laser ablation...
The International Atomic Energy Agency (IAEA) jointly with the Elettra Sincrotrone Trieste (EST) operates a multipurpose X-ray spectrometry endstation at Fluorescence beamline (10.1L). facility has been available to external users since beginning of 2015 through peer-review process EST. Using this collaboration framework, IAEA supports and promotes synchrotron-radiation-based research training activities for various groups from Member States, especially those who have limited previous...
* Localization of cadmium (Cd) and other elements was studied in the leaves field-collected cadmium/zinc (Cd/Zn) hyperaccumulator Thlaspi praecox from an area polluted with heavy metals near a lead mine smelter Slovenia, using micro-PIXE (proton-induced X-ray emission). The samples were prepared cryofixation. Quantitative elemental maps average concentrations whole-leaf cross-sections selected tissues obtained. Cd preferentially localized lower epidermis (820 microg g(-1) DW), vascular...
Biological systems are unique matter with very complex morphology and highly heterogeneous chemical composition dominated by light elements. Discriminating qualitatively at the sub-micrometer level lateral distribution of constituent elements, correlating it to sub-cellular biological structure, continues be a challenge. The low-energy X-ray fluorescence microspectroscopy, recently implemented in TwinMic scanning transmission mode, has opened up new opportunities for mapping complemented...
Iron insufficiency is a worldwide problem in human diets. In cereals like wheat, the bran layer of grains an important source iron. However, dietary availability iron wheat flour limited due to loss iron-rich during milling and processing presence anti-nutrients phytic acid that keep strongly chelated grain. The present study investigated localization phosphorus grain tissues genotypes with contrasting content using synchrotron-based micro-X-ray fluorescence (micro-XRF) micro-proton-induced...
Crop Fe deficiency is a worldwide problem. The aim of this study was to assess the effects foliar applications in two species grown different environments: peach (Prunus persica L. Batsch) trees field and sugar beet (Beta vulgaris cv. "Orbis") hydroponics. distal half Fe-deficient, chlorotic leaves treated with sulfate by dipping using brush plants, respectively. re-greening (Fe-treated) basal (untreated) leaf areas monitored, nutrient photosynthetic pigment composition were also determined....
Nano zero-valent iron (nZVI) has great potential in the remediation of metal(loid)-contaminated soils, but its efficiency metal(loid) stabilization plant-microbe continuum is unclear. This study investigated nZVI-mediated behavior arbuscular mycorrhizal (AM) fungal-maize ( Zea mays L.) plant association. Plants with AM fungal inoculation were grown metal(loid)- (mainly Zn and Pb) contaminated soils (Litavka River, Czech Republic) amended with/without 0.5% (w/w) nZVI. The results showed that...
In the past decade, development of single particle–inductively coupled plasma mass spectrometry (SP-ICPMS) has revolutionized field nanometallomics. Besides differentiation between dissolved and particulate metal signals, SP-ICPMS can quantify nanoparticle (NP) number concentration size. Because is limited to characterization NPs in solution, we show how solid sampling by laser ablation (LA) adds spatial-resolution characteristics for localized NP analysis biomaterials. Using custom-made...