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Mishra S, Duarte GT, Horemans N, Ruytinx J, Gudkov D, Danchenko M. Complexity of responses to ionizing radiation in plants, and the impact on interacting biotic factors. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 924:171567. [PMID: 38460702 DOI: 10.1016/j.scitotenv.2024.171567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 02/20/2024] [Accepted: 03/06/2024] [Indexed: 03/11/2024]
Abstract
In nature, plants are simultaneously exposed to different abiotic (e.g., heat, drought, and salinity) and biotic (e.g., bacteria, fungi, and insects) stresses. Climate change and anthropogenic pressure are expected to intensify the frequency of stress factors. Although plants are well equipped with unique and common defense systems protecting against stressors, they may compromise their growth and development for survival in such challenging environments. Ionizing radiation is a peculiar stress factor capable of causing clustered damage. Radionuclides are both naturally present on the planet and produced by human activities. Natural and artificial radioactivity affects plants on molecular, biochemical, cellular, physiological, populational, and transgenerational levels. Moreover, the fitness of pests, pathogens, and symbionts is concomitantly challenged in radiologically contaminated areas. Plant responses to artificial acute ionizing radiation exposure and laboratory-simulated or field chronic exposure are often discordant. Acute or chronic ionizing radiation exposure may occasionally prime the defense system of plants to better tolerate the biotic stress or could often exhaust their metabolic reserves, making plants more susceptible to pests and pathogens. Currently, these alternatives are only marginally explored. Our review summarizes the available literature on the responses of host plants, biotic factors, and their interaction to ionizing radiation exposure. Such systematic analysis contributes to improved risk assessment in radiologically contaminated areas.
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Affiliation(s)
- Shubhi Mishra
- Institute of Plant Genetics and Biotechnology, Plant Science and Biodiversity Centre, Slovak Academy of Sciences, 950 07 Nitra, Slovakia
| | - Gustavo Turqueto Duarte
- Unit for Biosphere Impact Studies, Belgian Nuclear Research Centre SCK CEN, 2400 Mol, Belgium
| | - Nele Horemans
- Unit for Biosphere Impact Studies, Belgian Nuclear Research Centre SCK CEN, 2400 Mol, Belgium; Centre for Environmental Sciences, Hasselt University, 3590 Diepenbeek, Belgium
| | - Joske Ruytinx
- Department of Bio-engineering Sciences, Vrije Universiteit Brussel, 1050 Brussels, Belgium
| | - Dmitri Gudkov
- Institute of Hydrobiology, National Academy of Sciences of Ukraine, 04210 Kyiv, Ukraine
| | - Maksym Danchenko
- Institute of Plant Genetics and Biotechnology, Plant Science and Biodiversity Centre, Slovak Academy of Sciences, 950 07 Nitra, Slovakia.
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Kordrostami M, Sanjarian F, Shahbazi S, Ghasemi-Soloklui AA. Exploring low-dose gamma radiation effects on monoterpene biosynthesis in Thymus vulgaris: insights into plant defense mechanisms. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:32842-32862. [PMID: 38668946 DOI: 10.1007/s11356-024-33269-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 04/05/2024] [Indexed: 05/29/2024]
Abstract
Thymus vulgaris, commonly known as thyme, is a plant renowned for producing monoterpenes. This study aimed to understand the effects of low-dose gamma radiation, specifically in the range of 1-5 Gy, on various traits of Thymus vulgaris, providing context on its importance in agricultural and medicinal applications. The research explored morpho-physiological, biochemical, and gene-expression responses in thyme plants under no gamma- and gamma-ray exposure conditions. The study revealed complex relationships between gamma-ray doses and plant characteristics. In particular, shoot and root lengths initially increased with low doses (1-3 Gy) but decreased at higher doses (5 Gy), suggesting a dose-dependent threshold effect. Similarly, shoot and root fresh weights displayed an initial increase followed by a decline with increasing doses. Biochemical parameters showed dose-dependent responses, with low to moderate doses (1-3 Gy) stimulating enzyme activities and high doses (5 Gy) inhibiting them. Gene expression analysis was focused on the following specific genes: thymol synthase, γ-terpinene synthase, and carvacrol synthase. Low to moderate doses increased the expression of these genes, resulting in increased production of bioactive compounds. However, higher doses had diminished effects or suppressed gene expression. Metabolite analysis demonstrated dose-dependent responses, with moderate doses enhancing secondary metabolite production, while higher doses provided limited benefits. These findings underscore the implications of using gamma radiation to enhance secondary metabolite production in plants and its potential applications in agriculture, medicine, and environmental science. The study emphasizes the potential of gamma radiation as an external stressor to influence plant responses and highlights the importance of understanding such effects in various fields.
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Affiliation(s)
- Mojtaba Kordrostami
- Nuclear Agriculture Research School, Nuclear Science and Technology Research Institute (NSTRI), Karaj, Iran
| | - Forough Sanjarian
- Plant Bioproducts Department, Institute of Agricultural Biotechnology, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran.
| | - Samira Shahbazi
- Nuclear Agriculture Research School, Nuclear Science and Technology Research Institute (NSTRI), Karaj, Iran
| | - Ali Akbar Ghasemi-Soloklui
- Nuclear Agriculture Research School, Nuclear Science and Technology Research Institute (NSTRI), Karaj, Iran
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Duarte GT, Volkova PY, Fiengo Perez F, Horemans N. Chronic Ionizing Radiation of Plants: An Evolutionary Factor from Direct Damage to Non-Target Effects. PLANTS (BASEL, SWITZERLAND) 2023; 12:1178. [PMID: 36904038 PMCID: PMC10005729 DOI: 10.3390/plants12051178] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 02/24/2023] [Accepted: 03/01/2023] [Indexed: 06/18/2023]
Abstract
In present times, the levels of ionizing radiation (IR) on the surface of Earth are relatively low, posing no high challenges for the survival of contemporary life forms. IR derives from natural sources and naturally occurring radioactive materials (NORM), the nuclear industry, medical applications, and as a result of radiation disasters or nuclear tests. In the current review, we discuss modern sources of radioactivity, its direct and indirect effects on different plant species, and the scope of the radiation protection of plants. We present an overview of the molecular mechanisms of radiation responses in plants, which leads to a tempting conjecture of the evolutionary role of IR as a limiting factor for land colonization and plant diversification rates. The hypothesis-driven analysis of available plant genomic data suggests an overall DNA repair gene families' depletion in land plants compared to ancestral groups, which overlaps with a decrease in levels of radiation exposure on the surface of Earth millions of years ago. The potential contribution of chronic IR as an evolutionary factor in combination with other environmental factors is discussed.
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Affiliation(s)
| | | | | | - Nele Horemans
- Belgian Nuclear Research Centre—SCK CEN, 2400 Mol, Belgium
- Centre for Environmental Sciences, Hasselt University, Agoralaan Building D, 3590 Diepenbeek, Belgium
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Huang Y, Qin M, Lai J, Liang J, Luo X, Li C. Assessing OBT formation and enrichment: ROS signaling is involved in the radiation hormesis induced by tritium exposure in algae. JOURNAL OF HAZARDOUS MATERIALS 2023; 443:130159. [PMID: 36283218 DOI: 10.1016/j.jhazmat.2022.130159] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/11/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
Tritium is the main component of radioactive wastewater from nuclear power plants and can be migrated into organisms to form organically bound tritium (OBT), which may pose a potential risk to aquatic ecosystem. Hence, it is essential to monitor OBT conversion in the presence of tritium exposure. In this study, the effects of pretreatment methods such as digestion on the recovery of tritium were discussed. It was found that microwave digestion pretreatment could improve the recovery of tritium by up to 90 % and allow OBT measurement with a small sample size equivalent to about 60 mg (dry weight). In addition, the efficiency of OBT transformation was different among biological samples, and the radiation hormesis phenomenon was induced by tritium exposure (3.7 × 106 Bq/L) in microalgae Chlorella vulgaris(C. vulgaris). The tritium exposure may induce radiation hormesis through the reactive oxygen species (ROS) signaling pathway, thus improving the photosynthetic capacity and metabolism level of C. vulgaris. Furthermore, enhancement of photorespiration metabolism and the antioxidation system may be important means for C. vulgaris to balance damage by tritium radiation. This study provides insights for further investigating OBT behavior, and will contribute to understanding the equilibrium damage mechanism of algae exposed to tritium.
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Affiliation(s)
- Yan Huang
- School of Life Sciences, Southwest University of Science and Technology, Mianyang 621010, China
| | - Min Qin
- National Institute of Metrolggy, Beijing 100013, China; Engineering Research Center of Biomass Materials, Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, China
| | - Jinlong Lai
- School of Life Sciences, Southwest University of Science and Technology, Mianyang 621010, China; Engineering Research Center of Biomass Materials, Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, China
| | | | - Xuegang Luo
- School of Life Sciences, Southwest University of Science and Technology, Mianyang 621010, China; Engineering Research Center of Biomass Materials, Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, China.
| | - Chen Li
- College of Chemical and Environment Science, Shaanxi University of Technology, Hanzhong 723000, China
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Wang J, Zhang Y, Zhou L, Yang F, Li J, Du Y, Liu R, Li W, Yu L. Ionizing Radiation: Effective Physical Agents for Economic Crop Seed Priming and the Underlying Physiological Mechanisms. Int J Mol Sci 2022; 23:ijms232315212. [PMID: 36499532 PMCID: PMC9737873 DOI: 10.3390/ijms232315212] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/26/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022] Open
Abstract
To overcome various factors that limit crop production and to meet the growing demand for food by the increasing world population. Seed priming technology has been proposed, and it is considered to be a promising strategy for agricultural sciences and food technology. This technology helps to curtail the germination time, increase the seed vigor, improve the seedling establishment, and enhance the stress tolerance, all of which are conducive to improving the crop yield. Meanwhile, it can be used to reduce seed infection for better physiological or phytosanitary quality. Compared to conventional methods, such as the use of water or chemical-based agents, X-rays, gamma rays, electron beams, proton beams, and heavy ion beams have emerged as promising physics strategies for seed priming as they are time-saving, more effective, environmentally friendly, and there is a greater certainty for yield improvement. Ionizing radiation (IR) has certain biological advantages over other seed priming methods since it generates charged ions while penetrating through the target organisms, and it has enough energy to cause biological effects. However, before the wide utilization of ionizing priming methods in agriculture, extensive research is needed to explore their effects on seed priming and to focus on the underlying mechanism of them. Overall, this review aims to highlight the current understanding of ionizing priming methods and their applicability for promoting agroecological resilience and meeting the challenges of food crises nowadays.
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Affiliation(s)
- Jiaqi Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730099, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yixin Zhang
- School of Biological Sciences, The University of Edinburgh, 57 George Square, Edinburgh EH89JU, UK
| | - Libin Zhou
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730099, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fu Yang
- Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
| | - Jingpeng Li
- Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
| | - Yan Du
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730099, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ruiyuan Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730099, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wenjian Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730099, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
- Correspondence: (W.L.); (L.Y.)
| | - Lixia Yu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730099, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
- Correspondence: (W.L.); (L.Y.)
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Podlutskii M, Babina D, Podobed M, Bondarenko E, Bitarishvili S, Blinova Y, Shesterikova E, Prazyan A, Turchin L, Garbaruk D, Kudin M, Duarte GT, Volkova P. Arabidopsis thaliana Accessions from the Chernobyl Exclusion Zone Show Decreased Sensitivity to Additional Acute Irradiation. PLANTS (BASEL, SWITZERLAND) 2022; 11:3142. [PMID: 36432872 PMCID: PMC9697804 DOI: 10.3390/plants11223142] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/11/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
Chronic ionising radiation exposure is a main consequence of radioactive pollution of the environment. The development of functional genomics approaches coupled with morphological and physiological studies allows new insights into plant adaptation to life under chronic irradiation. Using morphological, reproductive, physiological, and transcriptomic experiments, we evaluated the way in which Arabidopsis thaliana natural accessions from the Chernobyl exclusion zone recover from chronic low-dose and acute high-dose γ-irradiation of seeds. Plants from radioactively contaminated areas were characterized by lower germination efficiency, suppressed growth, decreased chlorophyll fluorescence, and phytohormonal changes. The transcriptomes of plants chronically exposed to low-dose radiation indicated the repression of mobile genetic elements and deregulation of genes related to abiotic stress tolerance. Furthermore, these chronically irradiated natural accessions showed higher tolerance to acute 150 Gy γ-irradiation of seeds, according to transcriptome and phytohormonal profiles. Overall, the lower sensitivity of the accessions from radioactively contaminated areas to acute high-dose irradiation may come at the cost of their growth performance under normal conditions.
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Affiliation(s)
| | - Darya Babina
- Russian Institute of Radiology and Agroecology, 249032 Obninsk, Russia
| | - Marina Podobed
- Russian Institute of Radiology and Agroecology, 249032 Obninsk, Russia
| | | | | | - Yana Blinova
- Russian Institute of Radiology and Agroecology, 249032 Obninsk, Russia
| | | | - Alexander Prazyan
- Russian Institute of Radiology and Agroecology, 249032 Obninsk, Russia
| | - Larisa Turchin
- Polesye State Radiation-Ecological Reserve, 247618 Khoiniki, Belarus
| | - Dmitrii Garbaruk
- Polesye State Radiation-Ecological Reserve, 247618 Khoiniki, Belarus
| | - Maxim Kudin
- Polesye State Radiation-Ecological Reserve, 247618 Khoiniki, Belarus
| | - Gustavo T. Duarte
- Belgian Nuclear Research Centre (SCK CEN), Unit for Biosphere Impact Studies, 2400 Mol, Belgium
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