Beta-radiation stress responses on growth and antioxidative defense system in plants a study with strontium-90 in Lemna minor

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Beta-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; Vandenhove, Hildegarde.

In: International Journal of Molecular Sciences, Vol. 16, 07.07.2015, p. 15309-15327.

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@article{0c9ca91a980e4a82a64335a9a34efbc5,
title = "Beta-radiation stress responses on growth and antioxidative defense system in plants a study with strontium-90 in Lemna minor",
abstract = "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 (90Sr) was used to test for β-radiation induced responses in the freshwater macrophyte Lemna minor. The accumulation pattern of 90Sr 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 90Sr 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 EDR10 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.",
keywords = "Radiation responses, abiotic stress, dosimetry, Lemna minor, oxidative stress, strontium-90",
author = "{Van Hoeck}, Arne and Nele Horemans and {Van Hees}, May and Robin Nauts and Hildegarde Vandenhove",
note = "Score=10",
year = "2015",
month = "7",
day = "7",
doi = "10.3390/ijms160715309",
language = "English",
volume = "16",
pages = "15309--15327",
journal = "International Journal of Molecular Sciences",
issn = "1422-0067",
publisher = "MDPI",

}

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TY - JOUR

T1 - Beta-radiation stress responses on growth and antioxidative defense system in plants a study with strontium-90 in Lemna minor

AU - Van Hoeck, Arne

AU - Horemans, Nele

AU - Van Hees, May

AU - Nauts, Robin

AU - Vandenhove, Hildegarde

N1 - Score=10

PY - 2015/7/7

Y1 - 2015/7/7

N2 - 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 (90Sr) was used to test for β-radiation induced responses in the freshwater macrophyte Lemna minor. The accumulation pattern of 90Sr 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 90Sr 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 EDR10 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.

AB - 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 (90Sr) was used to test for β-radiation induced responses in the freshwater macrophyte Lemna minor. The accumulation pattern of 90Sr 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 90Sr 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 EDR10 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.

KW - Radiation responses

KW - abiotic stress

KW - dosimetry

KW - Lemna minor

KW - oxidative stress

KW - strontium-90

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/12006936

U2 - 10.3390/ijms160715309

DO - 10.3390/ijms160715309

M3 - Article

VL - 16

SP - 15309

EP - 15327

JO - International Journal of Molecular Sciences

JF - International Journal of Molecular Sciences

SN - 1422-0067

ER -

ID: 862357