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231224s2017 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2017.01.013
|2 doi
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|a pubmed25n0899.xml
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|a (DE-627)NLM269732438
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|a (NLM)28282526
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|a (PII)S0176-1617(17)30049-4
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Alberto, Diana
|e verfasserin
|4 aut
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|a Root-level exposure reveals multiple physiological toxicity of triazine xenobiotics in Arabidopsis thaliana
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|c 2017
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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
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|2 rdacarrier
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|a Date Completed 17.10.2017
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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 © 2017 Elsevier GmbH. All rights reserved.
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|a Herbicides are pollutants of great concern due to environmental ubiquity resulting from extensive use in modern agriculture and persistence in soil and water. Studies at various spatial scales have also highlighted frequent occurrences of major herbicide breakdown products in the environment. Analysis of plant behavior toward such molecules and their metabolites under conditions of transient or persistent soil pollution is important for toxicity evaluation in the context of environmental risk assessment. In order to understand the mechanisms underlying the action of such environmental contaminants, the model plant Arabidopsis thaliana, which has been shown to be highly responsive to pesticides and other xenobiotics, was confronted with varying levels of the widely-used herbicide atrazine and of two of its metabolites, desethylatrazine and hydroxyatrazine, which are both frequently detected in water streams of agriculturally-intensive areas. After 24h of exposure to varying concentrations covering the range of triazine concentrations detected in the environment, root-level contaminations of atrazine, desethylatrazine and hydroxyatrazine were found to affect early growth and development in various dose-dependent and differential manners. Moreover, these differential effects of atrazine, desethylatrazine and hydroxyatrazine pointed to the involvement of distinct mechanisms directly affecting respiration and root development. The consequences of the identification of additional targets, in addition to the canonical photosystem II target, are discussed in relation with the ecotoxicological assessment of environmental xenobiotic contamination
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|a Journal Article
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|a Atrazine/desethylatrazine/hydroxyatrazine
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|a Chemical injury
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|a Chemical priming
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|a Herbicide pollution
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|a Photosystem II
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|a Xenobiotic stress
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|a Environmental Pollutants
|2 NLM
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|a Herbicides
|2 NLM
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|a Photosystem II Protein Complex
|2 NLM
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|a Soil
|2 NLM
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|a Soil Pollutants
|2 NLM
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|a Triazines
|2 NLM
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| 650 |
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|a Xenobiotics
|2 NLM
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| 650 |
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|a desethylatrazine
|2 NLM
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| 650 |
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|a Chlorophyll
|2 NLM
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|a 1406-65-1
|2 NLM
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|a Carbon Dioxide
|2 NLM
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|a 142M471B3J
|2 NLM
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|a Atrazine
|2 NLM
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| 650 |
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|a QJA9M5H4IM
|2 NLM
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| 700 |
1 |
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|a Couée, Ivan
|e verfasserin
|4 aut
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1 |
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|a Sulmon, Cécile
|e verfasserin
|4 aut
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|a Gouesbet, Gwenola
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 212(2017) vom: 01. Mai, Seite 105-114
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnns
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| 773 |
1 |
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|g volume:212
|g year:2017
|g day:01
|g month:05
|g pages:105-114
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|u http://dx.doi.org/10.1016/j.jplph.2017.01.013
|3 Volltext
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