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Title: | Are Arabidopsis thaliana plants able to recover from exposure to gamma radiation? A molecular perspective | Authors: | HOREMANS, Nele KARIUKI, Jackline SAENEN, Eline Mysara, Mohamed Beemster, Gerrit T. S. Sprangers, Katrien Pavlovic, Iva Novak, Ondrej Van Hees, May Nauts, Robin Duarte, Gustavo Turqueto CUYPERS, Ann |
Issue Date: | 2023 | Publisher: | ELSEVIER SCI LTD | Source: | JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, 270 (Art N° 107304) | Abstract: | Most plant research focuses on the responses immediately after exposure to ionizing irradiation (IR). However, it is as important to investigate how plants recover after exposure since this has a profound effect on future plant growth and development and hence on the long-term consequences of exposure to stress. This study aimed to investigate the IR-induced responses after exposure and during recovery by exposing 1-week old A. thaliana seedlings to gamma dose rates ranging from 27 to 103.7 mGy/h for 2 weeks and allowing them to recover for 4 days. A high-throughput RNAsequencing analysis was carried out. An enrichment of GO terms related to the metabolism of hormones was observed both after irradiation and during recovery at all dose rates. While plants exposed to the lowest dose rate activate defence responses after irradiation, they recover from the IR by resuming normal growth during the recovery period. Plants exposed to the intermediate dose rate invest in signalling and defence after irradiation. During recovery, in the plants exposed to the highest dose rate, fundamental metabolic processes such as photosynthesis and RNA modification were still affected. This might lead to detrimental effects in the long-term or in the next generations of those irradiated plants. | Notes: | Horemans, N (corresponding author), SCK CEN, Biosphere Impact Studies, Boeretang 200, B-2400 Mol, Belgium. nele.horemans@sckcen.be |
Keywords: | Gamma Rays;Seedlings;Plants;Arabidopsis;Radiation Monitoring | Document URI: | http://hdl.handle.net/1942/41925 | ISSN: | 0265-931X | e-ISSN: | 1879-1700 | DOI: | 10.1016/j.jenvrad.2023.107304 | ISI #: | 001105924400001 | Rights: | 2023 Elsevier Ltd. All rights reserved. | Category: | A1 | Type: | Journal Contribution |
Appears in Collections: | Research publications |
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Are Arabidopsis thaliana plants able to recover from exposure to gamma radiation_ A molecular perspective.pdf Restricted Access | Published version | 7.29 MB | Adobe PDF | View/Open Request a copy |
JENVRAD-D-23-00147_R1-3-clean version.pdf Until 2024-06-01 | Peer-reviewed author version | 1.38 MB | Adobe PDF | View/Open Request a copy |
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