אסיף מאגר המחקר החקלאי

Plant response to heavy metals and organic pollutants in cell culture and at whole plant level

Year:

2004

Source of publication :

Authors :

Volume :

4

Co-Authors:

Golan-Goldhirsh, A., Ben-Gurion University of The Negev, The Jacob Blaustein Inst. Desert Res, Albert Katz Dept. Dryland Biotechnol, Negev 84990, Israel
Barazani, O., Ben-Gurion University of The Negev, The Jacob Blaustein Inst. Desert Res, Albert Katz Dept. Dryland Biotechnol, Negev 84990, Israel
Nepovim, A., Inst. of Organic Chem./Biochemistry, AS CR, Praha 6 166 10, Czech Republic
Soudek, P., Inst. of Organic Chem./Biochemistry, AS CR, Praha 6 166 10, Czech Republic
Smrcek, S., Faculty of Natural Sciences, Charles University, Hlavova 2030, Praha 2, Czech Republic
Dufkova, L., Faculty of Natural Sciences, Charles University, Hlavova 2030, Praha 2, Czech Republic
Krenkova, S., Faculty of Natural Sciences, Charles University, Hlavova 2030, Praha 2, Czech Republic
Yrjala, K., University of Helsinki, Department of Biosciences, Division of General Microbiology, P.O.B. 56, Helsinki FIN-00014, Finland
Schröder, P., Institute for Soil Ecology, GSF Natl. Res. Ctr. for Envrn./Hlth., Ingolstaedter Landstrasse 1, Oberschleissheim D-85758, Germany
Vanek, T., Inst. of Organic Chem./Biochemistry, AS CR, Praha 6 166 10, Czech Republic

Facilitators :

Link :

Abstract:

Background. Increasing awareness in the last decade concerning environmental quality had prompted research into 'green solutions' for soil and water remediation, progressing from laboratory in vitro experiments to pot and field trials. In vitro cell culture experiments provide a convenient system to study basic biological processes, by which biochemical pathways, enzymatic activity and metabolites can be specifically studied. However, it is difficult to relate cell cultures, calli or even hydroponic experiments to the whole plant response to pollutant stress. In the field, plants are exposed to additional a-biotic and biotic factors, which complicate further plant response. Hence, we often see that in vitro selected species perform poorly under soil and field conditions. Soil physical and chemical properties, plant-mycorrhizal association and soil-microbial activity affect the process of contaminant degradation by plants and/or microorganisms, pointing to the importance of pot and field experiments. Objective. This paper is a joint effort of a group of scientists in COST action 837. It represents experimental work and an overview on plant response to environmental stress from in vitro tissue culture to whole plant experiments in soil. Results. Results obtained from in vitro plant tissue cultures and whole plant hydroponic experiments indicate the phytoremediation potential of different plant species and the biochemical mechanisms involved in plant tolerance. In pot experiments, several selected desert plant species, which accumulated heavy metal in hydroponic systems, succeeded in accumulating the heavy metal in soil conditions as well. Conclusions and Recommendations. In vitro plant tissue cultures provide a useful experimental system for the study of the mechanisms involved in the detoxification of organic and heavy metal pollutants. However, whole plant experimental systems, as well as hydroponics followed by pot and field trials, are essential when determining plant potential to remediate polluted sites. Multidisciplinary research teams can therefore increase our knowledge and promote a practical application of phytoremediation. © ecomed publishers.

Note:

Related Files :

Related Content

More details

You may also be interested in