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The role of bacteri...
The role of bacterial consortium and organic amendment in Cu and Fe isotope fractionation in plants on a polluted mine site
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- Pérez Rodríguez, Nathalie (author)
- Luleå tekniska universitet,Geovetenskap och miljöteknik
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- Langella, Francesca (author)
- Institute for Microbiology, Friedrich-Schiller-University, 07740, Jena, Germany
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- Rodushkin, Ilya (author)
- Luleå tekniska universitet,Geovetenskap och miljöteknik,Research and Development, ALS Scandinavia AB, Aurorum 10, 97775, Luleå, Sweden
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- Engström, Emma (author)
- Research and Development, ALS Scandinavia AB, Aurorum 10, 97775, Luleå, Sweden
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- Kothe, Erika (author)
- Institute for Microbiology, Friedrich-Schiller-University, 07740, Jena, Germany
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- Alakangas, Lena (author)
- Luleå tekniska universitet,Geovetenskap och miljöteknik
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- Öhlander, Björn (author)
- Luleå tekniska universitet,Geovetenskap och miljöteknik
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(creator_code:org_t)
- 2013-09-21
- 2014
- English.
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In: Environmental Science and Pollution Research. - : Springer Science and Business Media LLC. - 0944-1344 .- 1614-7499. ; 21:11, s. 6836-6844
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Copper and iron isotope fractionation by plant uptake and translocation is a matter of current research. As a way to apply the use of Cu and Fe stable isotopes in the phytoremediation of contaminated sites, the effects of organic amendment and microbial addition in a mine spoiled soil seeded with Helianthus annuus in pot experiments and field trials were studied. Results show that the addition of a microbial consortium of ten bacterial strains has an influence on Cu and Fe isotope fractionation by the uptake and translocation in pot experiments, with an increase in average of 0.99‰ for the δ65Cu values from soil to roots. In the field trial, the amendment with the addition of bacteria and mycorrhiza as single and double inoculation enriches the leaves in 65Cu compared to the soil. As a result of the same trial, the δ56Fe values in the leaves are lower than those from the bulk soil, although some differences are seen according to the amendment used. Siderophores, possibly released by the bacterial consortium, can be responsible for this change in the Cu and Fe fractionation. The overall isotopic fractionation trend for Cu and Fe does not vary for pots and field experiments with or without bacteria. However variations in specific metabolic pathways related to metal-organic complexation and weathering can modify particular isotopic signatures.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geokemi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geochemistry (hsv//eng)
Keyword
- Cu isotopes
- Fe isotopes
- mine sites
- phytoremediation
- organic amendments
- higher plants
- PGPR (plant growth promoting bacteria)
- metal uptake
- Applied Geology
- Tillämpad geologi
Publication and Content Type
- ref (subject category)
- art (subject category)
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