Influence of Cadophora finlandica and other microbial treatments on cadmium and zinc uptake in willows grown on polluted soil

M.N. Dos Santos Utmazian, P. Schweiger, P. Sommer, M. Gorfer, J. Strauss and W.W. Wenzel
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M.N. Dos Santos Utmazian: Department of Forest and Soil Sciences, University of Natural Resources and Applied Life Sciences, Vienna, Austria
P. Schweiger: Department of Forest and Soil Sciences, University of Natural Resources and Applied Life Sciences, Vienna, Austria
P. Sommer: Department of Forest and Soil Sciences, University of Natural Resources and Applied Life Sciences, Vienna, Austria
M. Gorfer: Department for Applied Plant Sciences and Plant Biotechnology, University of Natural Resources and Applied Life Sciences, Vienna, Austria
J. Strauss: Department for Applied Plant Sciences and Plant Biotechnology, University of Natural Resources and Applied Life Sciences, Vienna, Austria
W.W. Wenzel: Department of Forest and Soil Sciences, University of Natural Resources and Applied Life Sciences, Vienna, Austria

Plant, Soil and Environment, 2007, vol. 53, issue 4, 158-166

Abstract: We conducted a pot experiment to evaluate the Cd and Zn accumulation in leaves and roots of Salix smithiana (BOKU-03DE-001) and S. caprea (BOKU-01AT-004) clones grown on a metal-contaminated soil as affected by native microbes extracted from the same experimental soil, and the fungus Cadophora finlandica. Plant biomass production of S. smithiana was decreased in all the treatments compared to the sterilized control. In contrast, S. caprea grew best on the non-sterilized soil. Similar effects were observed for plant Zn and Cd contents. Microbial treatments affected metal accumulation differently in the two Salix species. The effects of the microbial treatments on biomass and metal content of leaves were not related to the degree of mycorrhization. A comparison with literature data suggests that the plant response to microbial inoculation in terms of metal accumulation may depend on the plant-internal metal concentration. Our findings also illustrate a difficulty of successful rhizosphere management using metal-tolerant microbial isolates to further enhance the phytoextraction process.

Keywords: bacteria; metal; mycorrhiza; phytoextraction; tolerance; willow (search for similar items in EconPapers)
Date: 2007
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpse:v:53:y:2007:i:4:id:2310-pse

DOI: 10.17221/2310-PSE

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