Publication details
Kořenový a foliární příjem, translokace a distribuce 14C-FLT u hrachu
| Title in English | Root and foliar uptake, translocation and distribution of 14C-FLT in pea |
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| Authors | |
| Year of publication | 2013 |
| Type | Conference abstract |
| MU Faculty or unit | |
| Citation | |
| Description | The risk assessment of vegetation contamination by organic pollutants can not be objectively evaluated on the basis of environmental contamination level without the knowledge of their fate in plants - uptake (via root or shoot), translocation, distribution and accumulation. In case of polycyclic aromatic hydrocarbons, which are even transformed in plant cells, a suitable method is to use stable or radioactive isotope labeled compound. In 10-day old pea seedlings already after 2 hours an uptake of 14C-fluoranthene both via roots from nutrient solution and via leaf surface and subsequent basipetal and acropetal translocation of 14C-activity into other plant parts was found. The levels of 14C-activity in root uptake were: root base and apex (11%) > stem base (0,18%) > stem apex (0,12%) > middle part of stem (0,10%). In foliar uptake the highest level of 14C-activity was found in contaminated leaf (50%) and its level decrease in order: middle part of stem (0,4%) > stem base (0,2%) > stem apex (0,1%) > root base (0,05%) > root apex (0,01%). Coming to the end of exposure period the level of 14C-activity in all plant parts increased. After 72 hours of foliar uptake the apical part of primary root contained in relation to its dry weight a comparable level of 14C-activity as the stem apex. |
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