A 3D ecotoxi-topological profile: Using concentration-time-response surfaces to show peroxidase activity in Zea mays (L.) exposed to aluminium or arsenic in hydroponic conditions

Autor: Hela Toumi, Cleder A. Somensi, Sylvie Cotelle, Claudemir M. Radetski, Renan C. Testolin, Fernanda Engel, Jean-François Férard, Rogério Corrêa
Přispěvatelé: Universidade do Vale do Itajaí (UNIVALI), Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Instituto Federal Catarinense (IFC), Laboratório de Remediação Ambiental [UNIVALI], Faculté des Sciences de Bizerte [Université de Carthage], Université de Carthage - University of Carthage
Rok vydání: 2021
Předmět:
Health
Toxicology and Mutagenesis
Ecotoxicity tests
0208 environmental biotechnology
Biomass
02 engineering and technology
010501 environmental sciences
Plant Roots
01 natural sciences
chemistry.chemical_compound
Hydroponics
Aluminium
2. Zero hunger
chemistry.chemical_classification
biology
[SDE.IE]Environmental Sciences/Environmental Engineering
General Medicine
Pollution
Aluminium III
Horticulture
Peroxidases
Phytotoxicity
Oxidation-Reduction
Peroxidase
Environmental Engineering
Peroxidase activity
Phytotoxicity test
[SDE.MCG]Environmental Sciences/Global Changes
chemistry.chemical_element
Zea mays
Arsenic
Time
Environmental Chemistry
0105 earth and related environmental sciences
Arsenic pollution
Maize Zea mays L
Public Health
Environmental and Occupational Health
General Chemistry
[SDE.ES]Environmental Sciences/Environmental and Society
Enzyme assay
020801 environmental engineering
Plant Leaves
Enzyme
chemistry
Seedlings
biology.protein
[SDE.BE]Environmental Sciences/Biodiversity and Ecology
Aluminum
Toxicant
Zdroj: Chemosphere
Chemosphere, Elsevier, 2021, 262, pp.127647. ⟨10.1016/j.chemosphere.2020.127647⟩
ISSN: 0045-6535
Popis: International audience; This study sought to use concentration-time-response surfaces to show the effects of exposure to toxic (semi-)metals on peroxidase activity in higher plants as a function of exposure-concentration and exposure-time. Maize (Zea mays L.) seedlings (i.e., leaves and roots) were exposed to arsenic (as As3+) or aluminium (as Al3+) under hydroponic conditions, and their biomass and peroxidase enzyme responses were assessed at different concentration-time-exposures. The 3D ecotoxi-profile generated with these data showed two distinct regions: the first region is formed by exposures (i.e., points for time-concentration pairings) that were not statistically different from the results of the control points (i.e., zero toxicant concentration and all exposure-times), whereas the second region is formed by exposure pairings with results that were statistically different to those obtained from control pairings. Overall, the data show that enzyme activity increased over a shorter exposure-time when there was an increase in the exposure-concentration of the toxicant, which can be seen on a 3-D toxicity profile. We propose that quantitative relationship ratios from different assessed endpoints (e.g., biomass and enzyme activity) and enzymatic concentration-time-response surfaces could be helpful in the field of environmental-policy management.
Databáze: OpenAIRE
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