Affiner votre recherche
Résultats 1-4 de 4
Variation in ozone sensitivity among clones of Betula pendula and Betula pubescens
1997
Paakkonen, E. | Holopainen, T. | Karenlampi, L. (Department of Ecology and Environmental Science, University of Kuopio, PO Box 1627, 70211, Kuopio (Finland))
Differences in growth, leaf senescence and injury, and stomatal density in birch (Betula pendula Roth.) in relation to ambient levels of ozone in Finland
1997
Paakkonen, E. | Holopainen, T. | Karenlampi, L. (Department of Ecology and Environmental Science, University of Kuopio, PO Box 1627 (Finland))
Seasonal variation of gas exchange and pigmentation in branches of three grafted clones of mature ponderosa pine exposed to ozone and acid rain
1997
Anderson, P.D. | Houpis, J.L.J. | Helms, J.A. | Momen, B. (USDA Forest Service, Forestry Sciences Laboratory, Rhinelander, Wisconsin (USA))
Phytoremediation of aromatic pollutants and selection of elite clones
1997
Shetty, K. | Nadiga, M. | Zheng, Z. | Lanza, G.R. (University of Massachusetts Amherst, Massachusetts (USA). Lab. of Food and Environmental Biotechnology)
Technology options involving the use of natural and accelerated bioremediation systems to treat complex mixtures of aromatic wastes would be a useful addition to current remediation strategies. The approach outlined in this paper would focus on harnessing the potential of a key detoxification enzyme, glutathione-S-transferase (GST) as part of an accelerated phytoremediation system to detoxify aromatic pollutants in soil and ground water. Major efforts will include the clarification of GST detoxification activity by characterizing the enzyme in a series of phenolic and azo-dye-tolerant phytoremediation candidates (e.g. elite clones of thyme), and the development of methods to manipulate the GST detoxification pathway in elite plant clones to accelerate the detoxification of aromatic pollutants. The information provided by the GST characterization studies could be used to develop significant new phytoremediation systems based on manipulated GST biotransformation pathways in elite plant clonal systems tolerant to highly polluted environments. One major advantage of the new phytoremediation systems would be their potential to perform in highly contaminated environments by providing a favorable rhizophere zone for microbial degradation of aromatics along with an enhanced GST-linked detoxification pathway
Afficher plus [+] Moins [-]