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231224s2013 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2013.09.015
|2 doi
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|a pubmed24n0772.xml
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|a (DE-627)NLM23170139X
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|a (NLM)24125840
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|a (PII)S0981-9428(13)00345-8
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Quiñones, Miguel A
|e verfasserin
|4 aut
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|a Lupinus albus plants acquire mercury tolerance when inoculated with an Hg-resistant Bradyrhizobium strain
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|c 2013
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 29.07.2014
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2013 Elsevier Masson SAS. All rights reserved.
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|a One strain of Bradyrhizobium canariense (L-7AH) was selected for its metal-resistance and ability to nodulate white lupin (Lupinus albus L.) plants, from a collection of rhizobial strains previously created from soils of the Almadén mining district (Spain) with varying levels of Hg contamination. Plants were inoculated with either strain L-7AH (Hg-tolerant) or L-3 (Hg-sensitive, used as control), and watered with nutrient solutions supplemented with various concentrations (0-200 μM) of HgCl2 in a growth chamber. L. albus inoculated with L-7AH were able to nodulate even at the highest concentration of Hg while those inoculated with L-3 had virtually no nodules at Hg concentrations above 25 μM. Plants inoculated with L-7AH, but not those with the control strain, were able to accumulate large amounts of Hg in their roots and nodules. Nodulation with L-7AH allowed plants to maintain constant levels of both chlorophylls and carotenoids in their leaves and a high photosynthetic efficiency, whereas in those inoculated with L-3 both pigment content and photosynthetic efficiency decreased significantly as Hg concentration increased. Nitrogenase activity of plants nodulated with L-7AH remained fairly constant at all concentrations of Hg used. Results suggest that this symbiotic pair may be used for rhizoremediation of Hg-contaminated soils
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Bioremediation
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|a Bradyrhizobium canariense
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|a F(v)/F(m)
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|a Mercury
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|a PGPR
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|a Phytostabilization
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|a ROS
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|a Rhizoremediation
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|a Symbiosis
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|a VAZ
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|a White lupin
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|a plant-growth promoting rhizobacteria
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|a reactive oxygen species
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|a variable fluorescence/maximum fluorescence
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|a violaxanthin + antheraxanthin + zeaxanthin
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|a Plant Proteins
|2 NLM
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|a Soil
|2 NLM
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|a Soil Pollutants
|2 NLM
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|a Chlorophyll
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|a 1406-65-1
|2 NLM
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|a Carotenoids
|2 NLM
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|a 36-88-4
|2 NLM
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|a Nitrogenase
|2 NLM
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|a EC 1.18.6.1
|2 NLM
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|a Mercury
|2 NLM
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|a FXS1BY2PGL
|2 NLM
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|a Ruiz-Díez, Beatriz
|e verfasserin
|4 aut
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|a Fajardo, Susana
|e verfasserin
|4 aut
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|a López-Berdonces, Miguel A
|e verfasserin
|4 aut
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|a Higueras, Pablo L
|e verfasserin
|4 aut
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|a Fernández-Pascual, Mercedes
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 73(2013) vom: 25. Dez., Seite 168-75
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
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|g volume:73
|g year:2013
|g day:25
|g month:12
|g pages:168-75
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|u http://dx.doi.org/10.1016/j.plaphy.2013.09.015
|3 Volltext
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|a AR
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|d 73
|j 2013
|b 25
|c 12
|h 168-75
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