{"title":"Transformation of the Chornobyl NPP cooling pond: radioecological situation and its impact on the blood system of small rodents.","authors":"Natalia Riabchenko, Alla Lypska, Natalia Rodionova, Hiroko Ishiniwa, Kenji Nanba, Olena Burdo","doi":"10.1080/09553002.2025.2505529","DOIUrl":"https://doi.org/10.1080/09553002.2025.2505529","url":null,"abstract":"<p><strong>Purpose: </strong>To assess the radioecological consequences of the technogenic transformation of the Chornobyl NPP cooling pond aquatic ecosystem and its impact on the blood system of <i>Myodes glareolus</i>, a typical small rodent species in the Chornobyl exclusion zone.</p><p><strong>Materials and methods: </strong>Animals were captured in the drained areas of the cooling pond and nearby areas. Radiometric surveys of the animals' natural habitat and soil sampling were conducted. γ-β-spectrometry was used to measure radionuclide levels (<sup>137</sup>Cs and <sup>90</sup>Sr) in soil and animal bodies. Absorbed dose rates were calculated. Blood smears, bone marrow and spleen imprints were prepared and stained using the standard Pappenheim method.</p><p><strong>Results: </strong>Activity of <sup>137</sup>Cs and <sup>90</sup>Sr in soil and animal samples, external/internal doses in animals were estimated. Radioecological assessment showed that radionuclide contamination in the drained areas did not exceed that of the adjacent territory. In exposed animals, similar hematopoietic alterations were observed, including disrupted differentiation and maturation of bone marrow cells, particularly in erythroid and granulocytic lineages. However, these blood abnormalities were less pronounced in animals from the drained zones.</p><p><strong>Conclusions: </strong>Draining the cooling pond, despite the expected high radionuclide concentrations in bottom sediments, did not cause significant changes in surface soil contamination. While bank voles showed deviations in blood parameters compared to reference values, differences between exposure groups were generally not significant. These findings support continued monitoring of radiobiological effects associated with the transforming of radiation-contaminated aquatic ecosystems into terrestrial.</p>","PeriodicalId":94057,"journal":{"name":"International journal of radiation biology","volume":" ","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144164357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Suresh Veeraperumal, Basveshwar Gawali, Nikita Singh, Seren Sevim-Wunderlich, Maciej T Czajkowski, Srishti Munjal Mehta, Corinna Asang, Dirk Pleimes, Snehalata A Pawar
{"title":"Imidazolyl ethanamide pentandioic acid promotes hematopoietic recovery following sublethal radiation in a murine model.","authors":"Suresh Veeraperumal, Basveshwar Gawali, Nikita Singh, Seren Sevim-Wunderlich, Maciej T Czajkowski, Srishti Munjal Mehta, Corinna Asang, Dirk Pleimes, Snehalata A Pawar","doi":"10.1080/09553002.2025.2505526","DOIUrl":"https://doi.org/10.1080/09553002.2025.2505526","url":null,"abstract":"<p><strong>Purpose: </strong>Hematopoietic acute radiation syndrome (H-ARS) results from bone marrow (BM) damage, leading to depletion of myeloid and lymphoid cells and increasing infection, hemorrhage, and mortality risks. Imidazolyl ethanamide pentandioic acid (IEPA), an orally bioavailable molecule, alleviates chemotherapy-induced myelosuppression and may similarly mitigate H-ARS. This study examines whether IEPA, alone or with granulocyte-monocyte colony-stimulating factor (GM-CSF), promotes recovery of hematopoietic stem and progenitor cells (HSCs/HPCs) after sublethal total body irradiation (TBI).</p><p><strong>Materials and methods: </strong>Mice received 5 Gy TBI followed by vehicle, IEPA (days 1-3), GM-CSF (days 1-5), or IEPA+GM-CSF. Recovery was assessed by body weight, blood counts, flow cytometry, clonogenic assays, BM megakaryocytes, and splenic CD34<sup>+</sup> cells.</p><p><strong>Results: </strong>IEPA increased body weight 2.5-fold by day 7, while IEPA+GM-CSF showed 2.5-fold and 3.3-fold increases on days 7 and 21, respectively. IEPA promoted recovery of HSCs/HPCs, multipotent progenitors (MPP2), myeloid and lymphoid progenitors, BM megakaryocytes, and splenic CD34+ cells. IEPA+GM-CSF improved in vitro self-renewal but offered no major in vivo advantage over IEPA alone, except for a 159-fold recovery in erythroid progenitors. All treatments reduced γ-H2AX expression in Lin- and HPCs on day 21, indicating less DNA damage.</p><p><strong>Conclusions: </strong>Our results reveal that IEPA attenuated radiation-induced DNA damage and improved recovery of HSCs/HPCs, myeloid as well as lymphoid progenitors, accompanied by increases in platelets in blood, megakaryocytes in BM and splenic CD34<sup>+</sup> cells. IEPA shows promise as a radiation mitigator, with no significant benefit observed from adding GM-CSF.</p>","PeriodicalId":94057,"journal":{"name":"International journal of radiation biology","volume":" ","pages":"1-17"},"PeriodicalIF":0.0,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144153101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jerónimo Leberle, Marina Perona, Ananya Choudhury, Nicolas Bellora, Irene L Ibañez, Luisa V Biolatti
{"title":"Alternative splicing in human cells exposed to ionizing radiation: a comprehensive review of ex vivo and in vivo studies.","authors":"Jerónimo Leberle, Marina Perona, Ananya Choudhury, Nicolas Bellora, Irene L Ibañez, Luisa V Biolatti","doi":"10.1080/09553002.2025.2505524","DOIUrl":"https://doi.org/10.1080/09553002.2025.2505524","url":null,"abstract":"<p><strong>Purpose: </strong>This study reviews how ionizing radiation (IR) induces alternative splicing (AS) in non-tumor and tumor cells under both ex vivo and in vivo irradiation conditions. The relevance and limitations of IR-induced AS in identifying potential biomarkers are highlighted for two main applications: biodosimetry and radiotherapy.</p><p><strong>Conclusions: </strong>Radiation promotes alterations in AS, which may differentially affect the response in both tumor and non-tumor cells. This response can occur in genes that change their overall expression as well as in those that remain unaltered in response to IR. Although cis-regulators modulate AS, trans-regulators like splicing factors are more involved in the IR response. Variants of key genes involved in the DNA damage response (DDR) are regulated in non-tumor cells while they are often deregulated in tumor cells favoring radioresistance. Identifying IR-induced AS variants could enhance the sensitivity of biodosimeters for dose estimation and biomarkers for radiosensitivity, offering potential strategies to personalize radiotherapy and improve outcomes. New and advanced sequencing technologies will allow variant identification important for the field of radiobiological research.</p>","PeriodicalId":94057,"journal":{"name":"International journal of radiation biology","volume":" ","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144121913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Han Byul Kim, Hyewon Kim, Su-Hyun Oh, Min-Ji Kang, Jung Hwan Park, Seung Bum Lee, Sehwan Shim, Hae-June Lee, Ki-Chun Yoo, Hyosun Jang
{"title":"Bixin alleviates radiation-induced intestinal damage <i>via</i> inflammation regulation and barrier recovery.","authors":"Han Byul Kim, Hyewon Kim, Su-Hyun Oh, Min-Ji Kang, Jung Hwan Park, Seung Bum Lee, Sehwan Shim, Hae-June Lee, Ki-Chun Yoo, Hyosun Jang","doi":"10.1080/09553002.2025.2505523","DOIUrl":"https://doi.org/10.1080/09553002.2025.2505523","url":null,"abstract":"<p><strong>Purpose: </strong>Radiotherapy for cancer treatment or unintentional exposure to ionizing radiation causes severe damage to the unaffected tissues of the digestive system, including gastrointestinal (GI) tract. Radiation exposure leads to an inflammatory response, and uncontrolled inflammation exacerbates radiation-induced tissue injury. Bixin is a liposoluble apocarotenoid isolated from <i>Bixa orrellana</i> seeds, which effectively attenuates several inflammatory diseases. In this study, we investigated whether bixin mitigated radiation-induced intestinal damage through an examination of its role in inflammation and the protection of the epithelial barrier.</p><p><strong>Materials and methods: </strong>To determine the therapeutic effects of bixin in treating radiation-induced intestinal damage, we carried out histological analyses, inflammatory response examinations, and barrier function assessments using a mouse model of radiation-induced enteropathy.</p><p><strong>Results: </strong>We uncovered that bixin effectively mitigates radiation-induced enteropathy by suppressing the inflammatory response, reducing inflammatory cell accumulation, and limiting cytokine expression in the radiation-induced intestinal injury. In a mouse model of acute radiation-induced intestinal injury, treatment with bixin enhanced nuclear factor erythroid-2-related factor 2 (NRF2) activation and promoted tight junction expression in the epithelium, while also hindering bacterial translocation to the mesenteric lymph nodes.</p><p><strong>Conclusion: </strong>Bixin represents a potential therapeutic candidate for the treatment of radiation-induced enteropathy.</p>","PeriodicalId":94057,"journal":{"name":"International journal of radiation biology","volume":" ","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144121914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hannah Bargh-Dawson, Carol Box, John Civale, Graeme M Birdsey, Jeffrey C Bamber, Emma Harris
{"title":"Radiotherapeutic enhancement using ultrasound-stimulated microbubbles: a critical review.","authors":"Hannah Bargh-Dawson, Carol Box, John Civale, Graeme M Birdsey, Jeffrey C Bamber, Emma Harris","doi":"10.1080/09553002.2025.2498980","DOIUrl":"https://doi.org/10.1080/09553002.2025.2498980","url":null,"abstract":"<p><strong>Purpose: </strong>Ultrasound stimulated microbubbles (USMB) are proposed as radioenhancing agents. Acting mechanically, they are attractive because their effects can be localized to the tumor, limiting the potential for normal tissue toxicity. Extensive preclinical research in models of human cancers has demonstrated increased tumor control when USMB are combined with radiotherapy compared with radiation alone, which has led to recent Phase I trials. The leading theory on the radioenhancement mechanism of action (MOA) is that USMB act as vascular disrupting agents, but others are proposed.</p><p><strong>Materials and methods: </strong>Current literature was reviewed with a focus on the role of the tumor vasculature on radiotherapy response, the bioeffects of USMB on the vasculature, and studies of USMB as radioenhancers. Additionally, the possible interplay between USMB as vascular modulators, and radiation-induced anti-tumor immunity, is explored.</p><p><strong>Results: </strong>Whilst most preclinical evidence compellingly describes the radioenhancement effect, only one study considers the immune cell infiltration post USMB plus radiotherapy, with non-significant findings. Clinical studies demonstrate the safety of USMB. As a monotherapy, USMB can alter tumor immune microenvironments and induce a variety of bioeffects on the vasculature, depending on the stimulatory acoustic parameters. Treatment parameters used to study the effects of USMB alone, and with radiotherapy, vary in the literature making direct comparisons difficult.</p><p><strong>Conclusions: </strong>Further work exploring USMB for radioenhancement is warranted. Elucidation of the MOA is required to support clinical translation, particularly with a view to optimize treatment parameters.</p>","PeriodicalId":94057,"journal":{"name":"International journal of radiation biology","volume":" ","pages":"1-21"},"PeriodicalIF":0.0,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144121921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Leonardo Salvarredi, Héctor Agüero, María Elisa Millan, María Fernanda Marra, Eduardo Callegari, Claudia Castro, Luis Lopez
{"title":"Radiation-induced senescent melanoma cells secrete soluble factors that trigger bystander senescence.","authors":"Leonardo Salvarredi, Héctor Agüero, María Elisa Millan, María Fernanda Marra, Eduardo Callegari, Claudia Castro, Luis Lopez","doi":"10.1080/09553002.2025.2505525","DOIUrl":"https://doi.org/10.1080/09553002.2025.2505525","url":null,"abstract":"<p><strong>Purpose: </strong>Senescence is a key cellular response to ionizing radiation. Senescent cells experience irreversible growth arrest while remaining metabolically active and secrete a distinct set of proteins, collectively referred to as the senescence-associated secretory phenotype (SASP). These secreted factors influence neighboring non-irradiated cells through a mechanism known as the bystander effect. This study aimed to investigate and characterize the bystander effect in a melanoma cell model.</p><p><strong>Material and methods: </strong>Murine melanoma B16F0 cells were exposed to X-irradiation (10 Gy), and senescence was induced 3 days later. Conditioned media from the senescent cells was collected and used to culture non-irradiated B16F0 cells. Proliferation, viability, clonogenic capacity, DNA damage foci formation, apoptosis, and senescence were assessed. The composition of the senescence-associated secretory phenotype was analyzed using mass spectrometry and bioinformatics tools.</p><p><strong>Results: </strong>Conditioned media from senescent cells induced by radiation reduced growth and promoted senescence in tumor cell cultures not exposed to ionizing radiation. Mass spectrometry analysis revealed greater protein diversity and abundance in conditioned media from senescent cells compared to that from non-irradiated cells. Additionally, conditioned media from senescent cells contained higher concentrations of proteins related to immune response, cellular aging, and responses to oxidative stress.</p><p><strong>Conclusions: </strong>Cells undergoing radiation-induced senescence promote bystander senescence by secreting soluble factors involved in the induction and maintenance of senescence.</p>","PeriodicalId":94057,"journal":{"name":"International journal of radiation biology","volume":" ","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144121919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Matthias Port, Donovan Anderson, Harold M Swartz, Valerie Swee Ting Goh, Merriline M Satyamitra, Naduparambil K Jacob, Mattia Romeo, Ruth Wilkins, Ann Barry Flood
{"title":"Addressing major issues regarding the roles of biodosimetry in responding to a major nuclear incident: report of EPR BioDose 2024 roundtable discussion.","authors":"Matthias Port, Donovan Anderson, Harold M Swartz, Valerie Swee Ting Goh, Merriline M Satyamitra, Naduparambil K Jacob, Mattia Romeo, Ruth Wilkins, Ann Barry Flood","doi":"10.1080/09553002.2025.2498978","DOIUrl":"https://doi.org/10.1080/09553002.2025.2498978","url":null,"abstract":"<p><p>The roundtable discussion at EPR BioDose 2024 focused on identifying challenges for using biodosimetry in a large nuclear incident and exploring potential solutions to strengthen preparedness and response frameworks. This report outlines the major themes discussed, including advancements in techniques, challenges in scaling operations, and the future of biodosimetry in emergency response. Initiated by International Association of Biological and EPR Radiation Dosimetry (IABERD), a group of experts comprised of professionals in academia, government and other agencies, were asked to discuss the question: 'When and how should biodosimetry be used for an unplanned radiation explosion in the short or long term?' This question challenged participants to consider a range of scenarios, from immediate triage in the aftermath of an incident to long-term health monitoring and risk assessment. Panelists acknowledged that, while biodosimetry plays a crucial role in rapidly assessing exposure levels to guide medical response, its practical implementation can vary based on scale, resources, and timing. They emphasized that in the short term, methods that provide quick, large-scale screening are important, whereas long-term strategies might include more detailed biological assessments to understand cumulative effects and potential health risks. Despite the difficulty of a one-size-fits-all approach, the insights gathered aimed to inform strategies that balance speed, accuracy, and sustainability in biodosimetry practices. Finally, panelists emphasized the need for better communication about preparedness with the general public and healthcare providers, and a more collaborative approach that also takes into account evaluating the practicality of various methods for triage or guiding treatment.</p>","PeriodicalId":94057,"journal":{"name":"International journal of radiation biology","volume":" ","pages":"1-12"},"PeriodicalIF":0.0,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144082907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Amina Aly, Noha Eliwa, Mohamed Abd El-Megid, Rabab Maraei
{"title":"Impact of low-doses gamma radiation on phytochemicals and bioactive compounds in barley microgreens.","authors":"Amina Aly, Noha Eliwa, Mohamed Abd El-Megid, Rabab Maraei","doi":"10.1080/09553002.2025.2494613","DOIUrl":"https://doi.org/10.1080/09553002.2025.2494613","url":null,"abstract":"<p><strong>Purpose: </strong>Microgreens have gained wide acceptance among consumers due to their low calorie content and rich composition of micronutrients and antioxidants, making them one of the best microgreen options. Therefore, this research is intended to investigate the effect of γ-rays on its growth and functional components and to confirm the possibility of using barley microgreens as a complementary and efficient food source.</p><p><strong>Material and methods: </strong>Barley grains were exposed to various doses (10, 20, 30, and 40 Gy) of gamma rays, as well as the un-irradiated sample is considered as the control. The stimulating effects on growth and biochemical components of barley microgreens were evaluated.</p><p><strong>Results: </strong>The results revealed that plant height increased significantly in response to gamma radiation exposure, and the maximum increase (23.87 cm) was obtained at a dose of 30 Gy. Otherwise, Ch a, Ch b, and carotenoid significantly increased (1.33, 0.941, and 0.181 mg/g FW), respectively at 30 Gy compared to the control (0.937, 0.448, and 0.132 mg/g FW), respectively. Also, the soluble sugars, proteins, and total free amino acids content were enhanced by increasing the dose level, and the maximum increase was noticed at 40 Gy of gamma rays. A remarkable increase was observed in the phenolic and flavonoid contents at 40 Gy (5.65 and 2.65 mg/g FW), respectively compared to control (4.57 and 2.16 mg/g FW). In the amino acids profile, glutamic acid was predominant, and the amino acids group was improved markedly by gamma rays compared with the control, and the dose of 40 Gy gave the greatest contents (141.60 µg/g DW), followed by 30 Gy (139.58 µg/g DW) in the control (121.34 µg/g DW). Current findings indicated that γ-rays have negative effects on γ-tocopherol, cholesterol, and stigmasterol, and the maximum decrease was observed with 40 Gy (21.774, 199.335, and 722.778 mg/kg DW), respectively. In contrast, it had positive effects on the values of ergosterol, α-tocopherol, and β-sitosterol (3580.674, 5255.511, and 5281.320 mg/kg DW), respectively.</p><p><strong>Conclusions: </strong>The results showed that treatment of barley grain with low doses of gamma rays stimulated; growth, biochemical compound, and antioxidants production, increasing the nutritional value of barley microgreens, improving microgreens defense and supporting the use of these grains as a complementary and efficient food.</p>","PeriodicalId":94057,"journal":{"name":"International journal of radiation biology","volume":" ","pages":"1-12"},"PeriodicalIF":0.0,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144061666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mohammad Hasanuzzaman Rani, Abu Sayeed Md Hasibuzzaman, Shamsun Nahar Begum
{"title":"Development of genetically diverse breeding lines through induced mutagenesis for the improvement of Chinigura and Kataribhog aromatic rice (<i>Oryza sativa</i> L.) landraces.","authors":"Mohammad Hasanuzzaman Rani, Abu Sayeed Md Hasibuzzaman, Shamsun Nahar Begum","doi":"10.1080/09553002.2025.2498982","DOIUrl":"https://doi.org/10.1080/09553002.2025.2498982","url":null,"abstract":"<p><strong>Purpose: </strong>In Bangladesh, Chinigura and Kataribhog stand out as two of the most popular short-grained aromatic rice cultivars, particularly in the northern regions. Their unique grain characteristics and delightful fragrance make them highly sought after. However, these cultivars suffer from low yield potential (<2.5 t/ha) and are prone to lodging due to their tall plant height (>140 cm). The narrow genetic base and hybrid sterility issues with non-scented rice varieties make improving these cultivars through traditional breeding methods challenging. We applied induced mutation to these cultivars to address these challenges and enhance the yield potential and lodging tolerance.</p><p><strong>Materials and methods: </strong>To induce mutations, we exposed Chinigura and Kataribhog dry seeds with a moisture content of 12% to gamma rays at five doses: 100, 200, 250, 300, and 400 Gy. We conducted the process in a controlled environment with strict safety measures to ensure our safety and that of the environment. Putative mutants with shorter plant height and growth duration were isolated from the segregating M<sub>2</sub> population, and then the putative mutants were validated in the M<sub>3</sub> and M<sub>4</sub> generations. Finally, we conducted a replicated yield trial with 21 selected mutants.</p><p><strong>Results: </strong>Our study revealed that the Kataribhog cultivar was more responsive to gamma irradiation than Chinigura. The 250 Gy irradiated Kataribhog population exhibited the highest mutation frequency. We validated the mutants selected from the M<sub>2</sub> population based on plant height and growth duration in the M<sub>3</sub> and M<sub>4</sub> generations. Ten mutants from Chinigura and 11 from the Kataribhog population, selected from the M<sub>4</sub> generation, were advanced to the replicated trial. These mutants exhibited semi-dwarfism, lodging resistance, higher grain yield, and aromatic properties. Ultimately, we successfully identified 12 semi-dwarf lodging resistant, seven with higher grain yield, and three aromatic mutants for the subsequent breeding programs, demonstrating the effectiveness of induced mutation in creating desired traits.</p><p><strong>Conclusion: </strong>First, the report will discuss the development of semi-dwarf mutants in Chinigura and Kataribhog aromatic rice cultivars through gamma irradiation.</p>","PeriodicalId":94057,"journal":{"name":"International journal of radiation biology","volume":" ","pages":"1-14"},"PeriodicalIF":0.0,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144032684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}