In ths work we focus on those who produce HCN (HCN + phenotype), siderofore (S + phenotype) and a rate of gene which encodes an enzyme Hg reductase (rate + phenotype). It is known that HCN and also mobilize siderofori single celled organisms inaccessible and less reactive forms of mercury as HgS and it Hg0. Protein rate the effect of reducing the reactivity of the form of Hg2 +, which is the most toxic form of micro-organisms. It was assumed that proximity to such producers HCN. cinnabar piece increases the effectiveness of mobilization because it enables specificity, and given the increased local concentration, the reactivity for a given reaction conditions. In doing so, we have tested the operation of the HCN and sideroforov distance, in such a way that we have separately cinnabar pieces and Hg0 but closed in a dialysis bag and subjected to culture. In the second case we cinnabar pieces and Hg0 mixed together with the cells. We have found that the production of HCN siderofors and increase bioavailability of Hg up to 50-fold under the same conditions as in strains that do not produce both metabolites
B.03 Paper at an international scientific conference
COBISS.SI-ID: 29153319The "22nd International Symposium on Environmental Biogeochemistry” was organized by Department of Environmental Sciences, JSI in collaboration with the Marine Biological Station of the National Institute of Biology in Piran, September 28 – October 2, 2015 (www.iseb22.ijs.si). The International Association of Environmental Biogeochemistry - ISEB organizes these symposiums every two years for more than thirty years. ISEB strived to bring together scientists from a range of disciplines relating to biogeochemistry in various fields including soil science, microbial ecology and marine, lacustrine and atmospheric research. More than 100 participants from 23 countries attended the symposium. The program also included two Special sessions GMOS and GEOTRACES (The marine and coastal environments) and GLOBAQUA (Surface and groundwater systems), while the SOIL session was devoted to the International Year of Soils (IYS). Strong international representation with six invited speakers and 52 oral and 54 poster presentations was delivered over the four days of symposium. All research groups of the project L1-5446 presented their results at the symposium.
B.01 Organiser of a scientific meeting
COBISS.SI-ID: 28913191With nano technologies, we have developed a new process for the preparation of the gold traps, which are crucial for the accuracy of the measurement of Hg in the proceedings that the Request preconcentration Hg. We compared two volumes, SiO2 and Al2O3, where we have found that the use of Al 2 O 3 is more suitable substrate also addition of platinum significantly improved performance at higher temperatures.
F.06 Development of a new product
COBISS.SI-ID: 28685351