ForschungForschungsprojekte
Biological methods for precautionary radiation protection against radionuclide contamination (BioVeStRa)

Biological methods for precautionary radiation protection against radionuclide contamination (BioVeStRa)

E-Mail:  steinhauser@irs.uni-hannover.de
Team:  Prof. Dr. Clemens Walther, Prof. Dr. Georg Steinhauser, Dr. Dharmendra Gupta, Wolfgang Schulz
Jahr:  2016
Förderung:  Bundesministerium für Bildung und Forschung - Förderkennzeichen: 02S9276D
Laufzeit:  01.05.2016 - 30.04.2019

About the project

The root system of plants are continuously absorbing radionuclides from radioactively contaminated soils. This causes the risk of an incorporation of radioactive substances via the human food chain (ingestion pathway).

Therefore, the mechanism of radionuclide transfer from soil to plants are of great interest for radioecology. The BioVeStRa project investigates the influence of the targeted use of saprophytic, soil-living fungal cultures on the transport of radionuclides into plants. While the potential of fungi for the accumulation and fixation of cesium is already comparatively well investigated, many questions regarding other dose-relevant nuclides are still unknown. In particular, strontium-90 should be mentioned, which is highly relevant for radiation protection due to its physical and biological properties. Therefore, it plays an important role in the investigations of the project.

In our radionuclide laboratory, pot experiments on model soils + plants/fungi are done in climatic chambers. Additionally within this project, a test cultivation of plants/fungi within the Chernobyl exclusion zone could be performed by a close cooperation with the Ukrainian research institute SEAPGEM1.

The aim of this interdisciplinary (radiation physics, biotechnology, chemistry, soil science) research project is to gain a comprehensive picture of the possible use of fungal cultures for the fixation of radionuclides in soils and the influence of radionuclide transfer in plants. Therefore, the IRS works closely with its German cooperation partners from HZDR2, VKTA3 and FSU4.

The knowledge gained can be used as a basis for future remediation concepts for contaminated soils and a long-term contribution to food safety, even on less contaminated soils.

Zusammenarbeit

 

Aktivitäten

  • Soil sampling and definition of an experimental field in the Chernobyl exclusion zone. Short film on YouTube. 
  • Bepflanzung des Versuchsfeldes in der Tschernobyl Sperrzone. Short film on YouTube. 
  • Ernte und Neubepflanzung des Versuchsfeldes in der Tschernobyl Sperrzone 2017. Short film on YouTube. 
  • Ernte und Neubepflanzung des Versuchsfeldes in der Tschernobyl Sperrzone 2018. Short film on YouTube.