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Van Dyck I, Vanhoudt N, Vives I Batlle J, Vargas CS, Horemans N, Van Gompel A, Nauts R, Wijgaerts A, Marchal W, Claesen J, Vangronsveld J. Differentiation between chemo- and radiotoxicity of 137Cs and 60Co on Lemna minor. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2024; 272:107351. [PMID: 38064934 DOI: 10.1016/j.jenvrad.2023.107351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 11/13/2023] [Accepted: 11/28/2023] [Indexed: 01/29/2024]
Abstract
The uptake and effects of stable Cs and Co on L.minor were extensively studied, together with the effects of gamma radiation using a 137Cs or 60Co source. Innovative is that we combined external irradiation (from 137Cs or 60Co sources) with the direct uptake of certain amounts of stable Cs or Co to simulate the impact of the same mass of a radioisotope compared with that of the stable element. Such approach allows to differentiate between chemo- and radiotoxicity of 137Cs or 60Co, permitting to study the 137Cs and 60Co uptake by L. minor without using high concentrations of these elements in solution. Our results indicate that radiotoxicity of both 137Cs and 60Co has a greater importance compared to their chemotoxicity. This was also supported by the independent action and concentration addition concepts. Both concepts resulted in a good prediction of the dose-response curve of the combination exposure. The maximal removal of 137Cs or 60Co per gram dry matter of L. minor was lower compared with the removal of the corresponding stable isotope. The toxicity of 60Co was higher compared to 137Cs based on EC50 values and uptake data. With respect to the effects on photosynthetic pigments, starch and soluble sugars contents, only starch increased in a concentration- and dose-dependent manner.
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Affiliation(s)
- Isabelle Van Dyck
- Belgian Nuclear Research Centre (SCK CEN), Biosphere Impact Studies, Boeretang 200, 2400, Mol, Belgium; UHasselt - Hasselt University, Centre for Environmental Sciences, Agoralaan Building D, 3590, Diepenbeek, Belgium
| | - Nathalie Vanhoudt
- Belgian Nuclear Research Centre (SCK CEN), Biosphere Impact Studies, Boeretang 200, 2400, Mol, Belgium.
| | - Jordi Vives I Batlle
- Belgian Nuclear Research Centre (SCK CEN), Biosphere Impact Studies, Boeretang 200, 2400, Mol, Belgium
| | - Clarita Saldarriaga Vargas
- Belgian Nuclear Research Centre (SCK CEN), Radiation Protection Dosimetry and Calibrations, Boeretang 200, 2400, Mol, Belgium
| | - Nele Horemans
- Belgian Nuclear Research Centre (SCK CEN), Biosphere Impact Studies, Boeretang 200, 2400, Mol, Belgium; UHasselt - Hasselt University, Centre for Environmental Sciences, Agoralaan Building D, 3590, Diepenbeek, Belgium
| | - Axel Van Gompel
- Belgian Nuclear Research Centre (SCK CEN), Biosphere Impact Studies, Boeretang 200, 2400, Mol, Belgium
| | - Robin Nauts
- Belgian Nuclear Research Centre (SCK CEN), Biosphere Impact Studies, Boeretang 200, 2400, Mol, Belgium
| | - Ann Wijgaerts
- UHasselt - Hasselt University, Centre for Environmental Sciences, Agoralaan Building D, 3590, Diepenbeek, Belgium
| | - Wouter Marchal
- UHasselt - Hasselt University, Institute for Materials Research (IMO-IMOMEC), Analytical & Circular Chemistry (ACC), Agoralaan Building D, 3590, Diepenbeek, Belgium
| | - Jürgen Claesen
- Department of Epidemiology and Data Science, Amsterdam University Medical Centers, Amsterdam, Netherlands
| | - Jaco Vangronsveld
- UHasselt - Hasselt University, Centre for Environmental Sciences, Agoralaan Building D, 3590, Diepenbeek, Belgium; Maria Curie-Skłodowska University, Department of Plant Physiology and Biophysics, Institute of Biological Sciences, Akademicka 19, 20-033, Lublin, Poland
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Li B, Zhao L, Zhang S, Cai H, Xu L, An B, Wang R, Liu G, He Y, Jiao C, Liu L, Xu Y. The Mutational, Epigenetic, and Transcriptional Effects Between Mixed High-Energy Particle Field (CR) and 7Li-Ion Beams (LR) Radiation in Wheat M 1 Seedlings. FRONTIERS IN PLANT SCIENCE 2022; 13:878420. [PMID: 35646033 PMCID: PMC9131052 DOI: 10.3389/fpls.2022.878420] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 04/04/2022] [Indexed: 06/15/2023]
Abstract
Ionizing radiation (IR) is an effective approach for mutation breeding. Understanding the mutagenesis and transcriptional profiles induced by different mutagens is of great significance for improving mutation breeding efficiency. Here, using RNA sequencing and methylation-sensitive amplification polymorphism (MSAP) approaches, we compared the genetic variations, epigenetics, and transcriptional responses induced by the mixed high-energy particle field (CR) and 7Li-ion beam (LR) radiation in M1 seedlings of two wheat genotypes (Yangmai 18 and Yangmai 20). The results showed that, in both wheat genotypes, CR displayed significantly a higher mutation efficiency (1.79 × 10-6/bp) than that by LR (1.56 × 10-6/bp). The induced mutations were not evenly distributed across chromosomes and varied across wheat genotypes. In Y18 M1, the highest number of mutations were detected on Chr. 6B and Chr. 6D, whilst in Y20 M1, Chr. 7A and Chr. 3A had the highest mutations. The transcript results showed that total of 4,755 CR-regulated and 1,054 LR-regulated differentially expressed genes (DEGs) were identified in the both genotypes. Gene function enrichment analysis of DEGs showed that these DEGs overlapped or diverged in the cascades of molecular networks involved in "phenylpropanoid biosynthesis" and "starch and sucrose metabolism" pathways. Moreover, IR type specific responses were observed between CR an LR irradiation, including specific TFs and response pathways. MSAP analysis showed that DNA methylation level increased in LR treatment, while decreased at CR. The proportion of hypermethylation was higher than that of hypomethylation at LR, whereas a reverse pattern was observed at CR, indicating that DNA methylation plays critical roles in response to IR irradiation. All these results support that the response to different IRs in wheat includes both common and unique pathways, which can be served as a useful resource to better understand the mechanisms of responses to different IRs in other plants.
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Affiliation(s)
- Bo Li
- Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, China
- Hubei Collaborative Innovation Centre for the Industrialization of Major Grain Crops, Yangtze University, Jingzhou, China
| | - Linshu Zhao
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shuo Zhang
- Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Haiya Cai
- Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Le Xu
- Hubei Collaborative Innovation Centre for the Industrialization of Major Grain Crops, Yangtze University, Jingzhou, China
| | - Bingzhuang An
- Hubei Collaborative Innovation Centre for the Industrialization of Major Grain Crops, Yangtze University, Jingzhou, China
| | - Rong Wang
- Hubei Collaborative Innovation Centre for the Industrialization of Major Grain Crops, Yangtze University, Jingzhou, China
| | - Gang Liu
- Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Yonggang He
- Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Chunhai Jiao
- Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Luxiang Liu
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yanhao Xu
- Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, China
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Fu L, Ding Z, Tan D, Han B, Sun X, Zhang J. Genome-wide discovery and functional prediction of salt-responsive lncRNAs in duckweed. BMC Genomics 2020; 21:212. [PMID: 32138656 PMCID: PMC7059339 DOI: 10.1186/s12864-020-6633-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 02/28/2020] [Indexed: 02/06/2023] Open
Abstract
Background Salt significantly depresses the growth and development of the greater duckweed, Spirodela polyrhiza, a model species of floating aquatic plants. Physiological responses of this plant to salt stress have been characterized, however, the roles of long noncoding RNAs (lncRNAs) remain unknown. Results In this work, totally 2815 novel lncRNAs were discovered in S. polyrhiza by strand-specific RNA sequencing, of which 185 (6.6%) were expressed differentially under salinity condition. Co-expression analysis indicated that the trans-acting lncRNAs regulated their co-expressed genes functioning in amino acid metabolism, cell- and cell wall-related metabolism, hormone metabolism, photosynthesis, RNA transcription, secondary metabolism, and transport. In total, 42 lncRNA-mRNA pairs that might participate in cis-acting regulation were found, and these adjacent genes were involved in cell wall, cell cycle, carbon metabolism, ROS regulation, hormone metabolism, and transcription factor. In addition, the lncRNAs probably functioning as miRNA targets were also investigated. Specifically, TCONS_00033722, TCONS_00044328, and TCONS_00059333 were targeted by a few well-studied salt-responsive miRNAs, supporting the involvement of miRNA and lncRNA interactions in the regulation of salt stress responses. Finally, a representative network of lncRNA-miRNA-mRNA was proposed and discussed to participate in duckweed salt stress via auxin signaling. Conclusions This study is the first report on salt-responsive lncRNAs in duckweed, and the findings will provide a solid foundation for in-depth functional characterization of duckweed lncRNAs in response to salt stress.
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Affiliation(s)
- Lili Fu
- Institute of Tropical Bioscience and Biotechnology, MOA Key Laboratory of Tropical Crops Biology and Genetic Resources, Hainan Bioenergy Center, Chinese Academy of Tropical Agricultural Sciences, Xueyuan Road 4, Haikou, 571101, China.,Hainan Academy of Tropical Agricultural Resource, Chinese Academy of Tropical Agricultural Sciences, Xueyuan Road 4, Haikou, 571101, China
| | - Zehong Ding
- Institute of Tropical Bioscience and Biotechnology, MOA Key Laboratory of Tropical Crops Biology and Genetic Resources, Hainan Bioenergy Center, Chinese Academy of Tropical Agricultural Sciences, Xueyuan Road 4, Haikou, 571101, China. .,Hainan Academy of Tropical Agricultural Resource, Chinese Academy of Tropical Agricultural Sciences, Xueyuan Road 4, Haikou, 571101, China.
| | - Deguan Tan
- Institute of Tropical Bioscience and Biotechnology, MOA Key Laboratory of Tropical Crops Biology and Genetic Resources, Hainan Bioenergy Center, Chinese Academy of Tropical Agricultural Sciences, Xueyuan Road 4, Haikou, 571101, China.,Hainan Academy of Tropical Agricultural Resource, Chinese Academy of Tropical Agricultural Sciences, Xueyuan Road 4, Haikou, 571101, China
| | - Bingying Han
- Institute of Tropical Bioscience and Biotechnology, MOA Key Laboratory of Tropical Crops Biology and Genetic Resources, Hainan Bioenergy Center, Chinese Academy of Tropical Agricultural Sciences, Xueyuan Road 4, Haikou, 571101, China.,Hainan Academy of Tropical Agricultural Resource, Chinese Academy of Tropical Agricultural Sciences, Xueyuan Road 4, Haikou, 571101, China
| | - Xuepiao Sun
- Institute of Tropical Bioscience and Biotechnology, MOA Key Laboratory of Tropical Crops Biology and Genetic Resources, Hainan Bioenergy Center, Chinese Academy of Tropical Agricultural Sciences, Xueyuan Road 4, Haikou, 571101, China.,Hainan Academy of Tropical Agricultural Resource, Chinese Academy of Tropical Agricultural Sciences, Xueyuan Road 4, Haikou, 571101, China
| | - Jiaming Zhang
- Institute of Tropical Bioscience and Biotechnology, MOA Key Laboratory of Tropical Crops Biology and Genetic Resources, Hainan Bioenergy Center, Chinese Academy of Tropical Agricultural Sciences, Xueyuan Road 4, Haikou, 571101, China. .,Hainan Academy of Tropical Agricultural Resource, Chinese Academy of Tropical Agricultural Sciences, Xueyuan Road 4, Haikou, 571101, China.
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