Journal
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
Volume 17, Issue 1, Pages 40-48Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/15226514.2013.828016
Keywords
phytoremediation; endophytes; Pseudomonas putida; poplar; co-contamination
Categories
Funding
- UHasselt Methusalem project [08M03VGRJ]
- European Commission under the Seventh Framwork Programme for Research (GREENLAND) [FP7-KBBE-266124]
- Fund for Scientific Research Flanders (FWO-Vlaanderen)
Ask authors/readers for more resources
To examine the potential of Pseudomonas putida W619-TCE to improve phytoremediation of Ni-TCE co-contamination, the effects of inoculation of a Ni-resistant, TCE-degrading root endophyte on Ni-TCE phytotoxicity, Ni uptake and trichloroethylene (TCE) degradation of Ni-TCE-exposed poplar cuttings are evaluated. After inoculation with P. putida W619-TCE, root weight of non-exposed poplar cuttings significantly increased. Further, inoculation induced a mitigation of the Ni-TCE phytotoxicity, which was illustrated by a diminished exposure-induced increase in activity of antioxidative enzymes. Considering phytoremediation efficiency, inoculation with P. putida W619-TCE resulted in a 45% increased Ni uptake in roots as well as a slightly significant reduction in TCE concentration in leaves and TCE evapotranspiration to the atmosphere. These results indicate that endophytes equipped with the appropriate characteristics can assist their host plant to deal with co-contamination of toxic metals and organic contaminants during phytoremediation. Furthermore, as poplar is an excellent plant for biomass production as well as for phytoremediation, the obtained results can be exploited to produce biomass for energy and industrial feedstock applications in a highly productive manner on contaminated land that is not suited for normal agriculture. Exploiting this land for biomass production could contribute to diminish the conflict between food and bioenergy production.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available