纳米硒缓解油菜高盐胁迫的机理研究  

Study on the mechanism of nano-selenium alleviating high salt stress in rapeseed

作　　者：张玮烜 韩猛 王富全 张小涵 邱士芬 布素爽 李强 Zhang Weixuan;Han Meng;Wang Fuquan;Zhang Xiaohan;Qiu Shifen;Bu Sushuang;Li Qiang(College of Agriculture and Forestry Sciences,Linyi University,Linyi,276000,Shandong,China;Rural Revitalization Service Center in Shizhong District,Zaozhuang,277100,Shandong,China;Mengyin County Agricultural and Rural Development Service Center,Linyi,Shandong 276000,China;Agriculture and Rural Bureau of Mengyin County,Linyi,276000,Shandong,China)

机构地区：[1]临沂大学农林科学学院,山东临沂276000 [2]枣庄市市中区乡村振兴服务中心,山东枣庄277100 [3]蒙阴县农业农村发展服务中心,山东临沂276000 [4]临沂市蒙阴县农业农村局,山东临沂276000

出　　处：《新疆农机化》2024年第5期20-22,共3页Xinjiang Agricultural Mechanization

基　　金：临沂大学大学生创新创业训练计划项目资助(202210452001)。

摘　　要：本文以硒源与不同盐浓度的纳米硒为测试对象,探究不同处理对油菜根长、株高、生物量、叶绿素、活性氧和CAT酶的影响。结果证实硒的喷施对高盐胁迫下油菜的生理生长具有一定的促进作用,能够显著提升油菜的根长、株高和生物量,纳米硒的喷施对油菜生理生长的促进作用更为明显。含硒组活性氧的含量明显低于无硒组,说明硒具有清除活性氧的作用。含硒组CAT酶含量高于无硒组,说明硒能够提高CAT酶的活性,增强油菜抗逆性。本研究能够为作物抗逆提供理论基础与技术支持。This study examined the effects of various treatments on the root length,plant height,biomass,chlorophyll content,reactive oxygen species,and CAT enzyme activity of rapeseed when selenium source and nano-selenium with different salt concentrations were used as test objects..The results indicate that the application of selenium has a promoting effect on the physiological growth of rapeseed under high salt stress,significantly enhancing the root length,plant height,and biomass of rapeseed.The application of nano-selenium has a more pronounced promoting effect on the physiological growth of rapeseed.The content of reactive oxygen species in the selenium-containing group is significantly lower than that in the selenium-free group,indicating that selenium has a role in scavenging reactive oxygen species.The content of CAT enzyme in the selenium-containing group is higher than that in the selenium-free group,indicating that selenium can enhance the activity of CAT enzyme and improve the stress resistance of rapeseed.This study can provide a theoretical basis and technical support for crop stress resistance.

关 键 词：纳米硒 盐胁迫 生理指标 活性氧 CAT酶 

分 类 号：S565.4[农业科学—作物学]