Cr^(6+)对大豆种子萌发的影响  

The Effects of Chromium on the Germination of Soybean

作　　者：李三相[1] 兰小平[1] 贾国军[1] 

机构地区：[1]天水师范学院生命科学与化学学院,甘肃天水741001

出　　处：《安徽农业科学》2010年第30期16757-16759,16798,共4页Journal of Anhui Agricultural Sciences

基　　金：天水师范学院青年基金项目;甘肃省自然科学基金项目(3ZS051-A25-026)

摘　　要：[目的]阐明Cr6+在植物种子萌发中的毒害作用及其毒害机制。[方法]用含不同浓度(0、5、10、20、40、60、80、100mg/L)Cr6+处理大豆种子,研究铬对大豆种子的毒害作用。[结果]大豆种子对低浓度(5～40mg/L)Cr6+具有一定耐受性,在高浓度下(60～100mg/L)随Cr6+浓度的增加,大豆种子的发芽率和发芽势明显受到抑制,且随浓度的增加,抑制作用加强,大豆种子含水量和胚轴质膜透性、丙二醛(MDA)含量、脯氨酸(Pro)含量、可溶性总糖含量,过氧化物酶(POD)活性不断增加。[结论]Cr6+对大豆种子萌发具有一定影响。The research aimed to study the effects of Cr6＋ on the germination of soybean.Soybean seeds were processed with different concentrations of Cr6＋（0,5,10,20,40,60,80,100 mg/L）.The effects of Cr6＋ on seed germination of soybean seeds were examined.The soybean seed may normally grow under the low concentration of Cr6＋（5-40 mg/L）.The soybean seed＇s sprouting rate and its germination potential obviously decreased under high concentration of Cr6＋（60-100 mg/L）.And with time＇s extension and concentration＇s increasing,the water content of soybean seeds,the hypocotyls membrane Permeability,the content of MDA,the content of pralines,the content of soluble sugar,POD activity gradually increased respectively.

关 键 词：大豆 铬 种子萌发 

分 类 号：S643.7[农业科学—蔬菜学]