Book with abstracts from the COST Action 0905 meeting in ... - UMB

USE OF DYNAMIC FACTORS TO IMPROVE PRACTICAL
KNOWLEDGE IN METAL UPTAKE PROCESSES
Edita Baltrėnaitė 1 , Arvydas Lietuvninkas 2 , Pranas Baltrėnas 3
1,2 Department of Environmental Protection, Vilniaus Gediminas Technical University
Saulėtekio al. 11, LT-10223, Vilnius, Lithuania, edita@vgtu.lt
3 Tomsk State University, Lenino av. 36, 634050, Tomsk, Russia.
Keywords: dynamic factor of bioaccumulation, dynamic factor of biophilicity,
dynamic factor of translocation, metal uptake
One of the milestones established by the WG1 “Soil-plant interactions and physiology
(rhizosphere, bioavailability, agronomy, mineral fertilizers, use of nano-particles)” of the
COST FA0905 is “to study selected soil and plant factors affecting root uptake and grain
accumulation of heavy metals in crops”. Metal uptake by plants is a complex
physicochemical process, which cannot be explained without taking into account plant
physiology and plant existing conditions.
Since element bioaccumulation depends on physiological sensitivity on the total
contamination of soil we use a new biogeochemical parameter – dynamic factor of
bioaccumulation – to analyze change in bioaccumulation. Dynamic factor of
translocation can be used to estimate changes of element translocation in plant. Change of
element participation in metabolism can be expressed in dynamic factor of biophilicity.
Factor values express changes in uptake and translocation processes and are sensitive to
changes in plant and soil conditions.
A case study of factor use with conclusions will be presented and discussed in the
presentation.