摘要
采用室内培养方法,研究了活性铝对小麦体内葡萄糖含量及葡萄糖-6-磷酸脱氢酶活性的影响。结果表明,本实验条件下,随活性铝浓度的升高小麦根中葡萄糖含量显著下降;叶中葡萄糖含量随活性铝浓度的升高显著地上升;茎中葡萄糖含量呈现两种相反的变化趋势:活性铝浓度较高时,茎中葡萄糖含量上升;活性铝浓度较低时,茎中葡萄糖含量降低。实验中葡萄糖-6-磷酸脱氢酶活性在两个条件下(67.72μmol·L-1犤Ala犦,5.41μmol·L-1犤Alb犦或1.37μmol·L-1犤Ala犦,0.56μmol·L-1犤Alb犦)升高。证明微量活性铝对小麦碳代谢产生了影响。
The study was conducted to examine the relationship between activated aluminum and its phytotoxicity. The toxicity of Ala (mononuclear Al) and Alb (polynuclear Al) on the Glucose contents and the activity of glucose- 6- phosphate dehydrogenase of wheat were investigated. The results showed that the Glucose contents in roots decreased with increased concentrations of Ala and Alb, while they increased in leaves when exposed to Ala and Alb in our tests. The Glucose contents in leaves significantly related with the total concentration of Ala and Alb. High concentration of Ala made accumulation of Glucose in stems. The activity of G6PD dramatically increased under 67.72 μ mol· L- 1 and 5.41 μ mol· L- 1 or 1.37 μ mol· L- 1 and 0.56 μ mol· L- 1 , which implied that Al had some effects on the metabolism of carbon in wheat.
出处
《农业环境科学学报》
CAS
CSCD
北大核心
2004年第3期452-454,共3页
Journal of Agro-Environment Science
