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β-Radiation Stress Responses on Growth and Antioxidative Defense System in Plants: A Study with Strontium-90 in Lemna minor
In the following study, dose dependent effects on growth and oxidative stress induced by β-radiation were examined to gain better insights in the mode of action of β-radiation induced stress in plant species. Radiostrontium ((90)Sr) was used to test for β-radiation induced responses in the freshwate...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4519901/ https://www.ncbi.nlm.nih.gov/pubmed/26198226 http://dx.doi.org/10.3390/ijms160715309 |
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author | Van Hoeck, Arne Horemans, Nele Van Hees, May Nauts, Robin Knapen, Dries Vandenhove, Hildegarde Blust, Ronny |
author_facet | Van Hoeck, Arne Horemans, Nele Van Hees, May Nauts, Robin Knapen, Dries Vandenhove, Hildegarde Blust, Ronny |
author_sort | Van Hoeck, Arne |
collection | PubMed |
description | In the following study, dose dependent effects on growth and oxidative stress induced by β-radiation were examined to gain better insights in the mode of action of β-radiation induced stress in plant species. Radiostrontium ((90)Sr) was used to test for β-radiation induced responses in the freshwater macrophyte Lemna minor. The accumulation pattern of (90)Sr was examined for L. minor root and fronds separately over a seven-day time period and was subsequently used in a dynamic dosimetric model to calculate β-radiation dose rates. Exposing L. minor plants for seven days to a (90)Sr activity concentration of 25 up to 25,000 kBq·L(−1) resulted in a dose rate between 0.084 ± 0.004 and 97 ± 8 mGy·h(−1). After seven days of exposure, root fresh weight showed a dose dependent decrease starting from a dose rate of 9.4 ± 0.5 mGy·h(−1). Based on these data, an EDR(10) value of 1.5 ± 0.4 mGy·h(−1) was estimated for root fresh weight and 52 ± 17 mGy·h(−1) for frond fresh weight. Different antioxidative enzymes and metabolites were further examined to analyze if β-radiation induces oxidative stress in L. minor. |
format | Online Article Text |
id | pubmed-4519901 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-45199012015-08-03 β-Radiation Stress Responses on Growth and Antioxidative Defense System in Plants: A Study with Strontium-90 in Lemna minor Van Hoeck, Arne Horemans, Nele Van Hees, May Nauts, Robin Knapen, Dries Vandenhove, Hildegarde Blust, Ronny Int J Mol Sci Article In the following study, dose dependent effects on growth and oxidative stress induced by β-radiation were examined to gain better insights in the mode of action of β-radiation induced stress in plant species. Radiostrontium ((90)Sr) was used to test for β-radiation induced responses in the freshwater macrophyte Lemna minor. The accumulation pattern of (90)Sr was examined for L. minor root and fronds separately over a seven-day time period and was subsequently used in a dynamic dosimetric model to calculate β-radiation dose rates. Exposing L. minor plants for seven days to a (90)Sr activity concentration of 25 up to 25,000 kBq·L(−1) resulted in a dose rate between 0.084 ± 0.004 and 97 ± 8 mGy·h(−1). After seven days of exposure, root fresh weight showed a dose dependent decrease starting from a dose rate of 9.4 ± 0.5 mGy·h(−1). Based on these data, an EDR(10) value of 1.5 ± 0.4 mGy·h(−1) was estimated for root fresh weight and 52 ± 17 mGy·h(−1) for frond fresh weight. Different antioxidative enzymes and metabolites were further examined to analyze if β-radiation induces oxidative stress in L. minor. MDPI 2015-07-07 /pmc/articles/PMC4519901/ /pubmed/26198226 http://dx.doi.org/10.3390/ijms160715309 Text en © 2015 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Van Hoeck, Arne Horemans, Nele Van Hees, May Nauts, Robin Knapen, Dries Vandenhove, Hildegarde Blust, Ronny β-Radiation Stress Responses on Growth and Antioxidative Defense System in Plants: A Study with Strontium-90 in Lemna minor |
title | β-Radiation Stress Responses on Growth and Antioxidative Defense System in Plants: A Study with Strontium-90 in Lemna minor |
title_full | β-Radiation Stress Responses on Growth and Antioxidative Defense System in Plants: A Study with Strontium-90 in Lemna minor |
title_fullStr | β-Radiation Stress Responses on Growth and Antioxidative Defense System in Plants: A Study with Strontium-90 in Lemna minor |
title_full_unstemmed | β-Radiation Stress Responses on Growth and Antioxidative Defense System in Plants: A Study with Strontium-90 in Lemna minor |
title_short | β-Radiation Stress Responses on Growth and Antioxidative Defense System in Plants: A Study with Strontium-90 in Lemna minor |
title_sort | β-radiation stress responses on growth and antioxidative defense system in plants: a study with strontium-90 in lemna minor |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4519901/ https://www.ncbi.nlm.nih.gov/pubmed/26198226 http://dx.doi.org/10.3390/ijms160715309 |
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