Record ID No. |
2079 |
Author(s) |
Lebeau, T; Braud, A; Jezequel, K. , 2008 |
Affiliation |
Equipe Dépollution Biologique des Sols (EDBS), University of Haute-Alsace, 28, rue de Herrlisheim, BP 50 568, 68 008 Colmar Cedex, France. thierry.lebeau@uha.fr |
Title |
Performance of bioaugmentation-assisted phytoextraction applied to metal contaminated soils: A review |
Source. Vol.(no):Page |
Environmental Pollution, 153(3): 497-522p. |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Reviews |
Sub-subjects |
Miscellaneous |
Host |
Plants |
Organism |
Rhizobacteria |
Country |
France, Europe |
Abstracts |
Bioaugmentation-assisted phytoextraction is a promising method for the cleaning-up of soils contaminated by metals. Bacteria mainly Plant Growth Promoting Rhizobacteria (PGPR) and fungi mainly Arbuscular Mycorrhizal Fungi (AMF) associated with hyperaccumulating or non-hyperaccumulating plants were analyzed on the basis of a bioprocess engineering approach (concentration and amount of metals extracted by plants, translocation and bioconcentration factor, and plant biomass). In average bioaugmentation increased metals accumulated by shoots by a factor of about 2 (metal concentration) and 5 (amount) without any obvious differences between bacteria and fungi. To optimize this process, new relevant microorganism-plant associations and field scale experiments are needed along with a common methodology for the comparison of all experiments on the same basis. Recommendations were suggested concerning both the microbial-plant selection and the implementation of bioaugmentation to enhance the microbial survival. The use of microbial consortia associated with plant was discussed notably for multi-contaminated soils. |