华北农学报2017，Vol.32Issue(2)：226-231,6.DOI:10.7668/hbnxb.2017.02.033
硒胁迫对紫花苜蓿硒积累及矿质元素吸收的效应
Response of Se Stress on the Accumulation ofSe and the Absorption of Mineral Elements in Alfalfa
摘要
Abstract
In order to explore the effect of Se stress on the accumulation of Se and the absorption of other mineral elements in alfalfa.The effect of selenium stress on the accumulation of Se and the absorption of mineral elements in different alfalfa were investigated by pot experiments, including biomass content, translocation factor, tolerance factor,Se accumulation, Se content and mineral elements content in different tissues of Medicago sativa L..The results showed that the content of Se,tolerance factor, Se accumulation and mineral elements (K,P,Ca,Mg) were gradually increased when the Se stress increased to 100 μmol/L Se,compared with control(non-Se).After exposure to 900 μmol/L Se, Se stress markedly increased the Se accumulation in the different tissues of three alfalfas.However, Se stress markedly decreased the contents of biomass in the different tissues of Medicago sativa cv.Vitoria alfalfa and the root of Medicago sative ssp., and it was markedly decreased the absorption of Zn content.Under different levels of Se stress, Se accumulation and mineral elements(K,P,Mg),compared with other species.Thus, it was concluded that Medicago sativa ssp.had high selenium resistance.关键词
硒积累/紫花苜蓿/矿质元素Key words
Selenium accumulation/Medicago sativa L./Mineral element分类
农业科技引用本文复制引用
代惠萍,赵桦,贾根良,陈德经,张兴昌,裴金金,冯佰利..硒胁迫对紫花苜蓿硒积累及矿质元素吸收的效应[J].华北农学报,2017,32(2):226-231,6.基金项目
陕西省自然基金项目(2015JM3086) （2015JM3086）
国家自然科学基金项目(41571300) （41571300）
陕南秦巴山区生物资源综合开发协同创新项目(QBXT-Z(P)-15-7) （QBXT-Z(P）
陕西省科技厅项目(2015SZS-15-05) （2015SZS-15-05）
