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© 2013. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

Phytoextraction has been reported as an economically and ecologically sound alternative for the remediation of metal‐contaminated soils. Willow is a metal phytoextractor of interest because it allows to combine a gradual contaminant removal with production of biomass that can be valorized in different ways. In this work two willow clones growing on a metal‐contaminated site were selected: ‘Belgisch Rood’ (BR) with a moderate metal extraction capacity and ‘Tora’ (TO) with a twice as high metal accumulation. All cultivable bacteria associated with both willow clones were isolated and identified using 16SrDNA ARDRA analysis followed by 16SrDNA sequencing. Further all isolated bacteria were investigated for characteristics that might promote plant growth (production of siderophores, organic acids and indol acetic acid) and for their metal resistance. The genotypic and phenotypic characterization of the isolated bacteria showed that the TO endophytic bacterial population is more diverse and contains a higher percentage of metal‐resistant plant growth promoting bacteria than the endophytic population associated with BR. We hypothesize that the difference in the metal accumulation capacity between BR and TO clones might be at least partly related to differences in characteristics of their associated bacterial population.

Details

Title
Role of plant‐associated bacteria in Cd phytoextraction
Author
Weyens, Nele 1 ; Beckers, Bram 1 ; Schellingen, Kerim 1 ; Ceulemans, Reinhart 2 ; Croes, Sarah 1 ; Janssen, Jolien 1 ; Haenen, Stefan 1 ; Witters, Nele 1 ; Vangronsveld, Jaco 1 

 Hasselt University, Centre for Environmental Sciences, Diepenbeek, Belgium 
 University of Antwerp, Biology Department, Wilrijk, Belgium 
Pages
288-299
Section
Research articles
Publication year
2013
Publication date
May 2013
Publisher
John Wiley & Sons, Inc.
e-ISSN
17517915
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2290032625
Copyright
© 2013. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.