内蒙古民族大学学报（自然科学版）2025，Vol.40Issue(6)：34-41,8.DOI:10.14045/j.cnki.15-1220.2025.06.005
不同辐射源对多叶棘豆萌发、生长及生理生化的影响
The Effects of Different Radiation Sources on the Germination,Growth and Physiological Biochemistry of Oxytropis myriophylla
摘要
Abstract
To systematically evaluate the biological effects of different ionizing radiations on the Mongolian me-dicinal plant Oxytropis myriophylla(Pall.)DC.,dry seeds were subjected to gradient-dose irradiation with neutrons,γ-rays,and 12C6+ion beams.Seed germination,seedling growth,physiological-biochemical traits were subsequently assessed.Growth indices-including germination percentage,leaf number,lateral-root number,and root length-were recorded,together with chlorophyll concentration,malondialdehyde(MDA)concentration,peroxidase(POD)activity,and superoxide dismutase(SOD)activity.The results demonstrated that low-dose irradiation triggered oxidative stress and activated the antioxidant defense system,leading to a hormetic growth-promotion response,whereas high-dose irradiation markedly aggravated oxidative damage and suppressed normal seedling development.关键词
多叶棘豆/电离辐射/生物学效应/生理生化/辐射育种Key words
Oxytropis myriophylla/ionizing radiation/biological effects/physiological-biochemical parameters/radiation breeding分类
能源科技引用本文复制引用
任媛媛,张苏雅拉吐,红艳,杨杰,包格日勒,拉喜那木吉拉..不同辐射源对多叶棘豆萌发、生长及生理生化的影响[J].内蒙古民族大学学报（自然科学版）,2025,40(6):34-41,8.基金项目
内蒙古自治区高等学校创新团队发展支持计划项目(NMGIRT2217) （NMGIRT2217）
内蒙古自治区自然科学基金项目(2024ZD23) （2024ZD23）
中央引导地方科技发展资金项目(2025ZY0067) （2025ZY0067）
