中国稻米2026，Vol.32Issue(3)：41-47,7.DOI:10.3969/j.issn.1006-8082.2026.03.007
纳米塑料胁迫对水稻种子萌发及幼苗生理特性的影响
Effects of Nanoplastic Stress on Rice Seed Germination and Seedling Physiological Characteristics
摘要
Abstract
To investigate the effects of nanoplastics(NPs)on rice seed priming and their underlying mechanisms,this study utilized four rice varieties(Wuyoudao 4,Yuxiangnuo 1,Yuxiangyou 8133,and Yongyou 4949)as experimental materials.Treatments included a blank control(CK)and NP treatments at concentrations of 0.1 mg/L(T1),10 mg/L(T2),and 1000 mg/L(T3).Seed germination characteristics,seedling growth status,and antioxidant physiological indices(including activities of SOD,POD,CAT,and MDA content)were measured.The results showed that the T1 treatment slightly promoted seed germination,while the T2 and T3 treatments significantly inhibited it.All NPs treatments promoted shoot growth but inhibited root development,resulting in a decreased root-to-shoot ratio.The antioxidant enzyme responses exhibited an uncoupled phenomenon:SOD and CAT activities increased,POD activity was inhibited,and changes in MDA content varied depending on the variety and treatment concentration.Yongyou 4949 and Wuyoudao 4 exhibited strong tolerance with minimal oxidative damage,whereas Yuxiangnuo 1 and Yuxiangyou 8133 were more sensitive to NPs,showing aggravated membrane lipid peroxidation.This study provides a theoretical basis for stress-resistant rice cultivation,microplastic pollution prevention and control in farmland,and the selection of tolerant varieties,thereby contributing to the assurance of safe rice production.关键词
水稻/纳米塑料/种子引发/抗氧化酶Key words
rice/nanoplastics/seed priming/antioxidant enzymes分类
农业科技引用本文复制引用
牙彩色,胡津辅,姚雄,王平..纳米塑料胁迫对水稻种子萌发及幼苗生理特性的影响[J].中国稻米,2026,32(3):41-47,7.基金项目
国家自然科学基金(32301936) （32301936）
高品质水稻资源的引进发掘与创新利用(TZ02.216) （TZ02.216）
水田粮油作物周年高质高效技术模式展示(FWLX20250600261) （FWLX20250600261）
