摘要
分别用含有0、20、100、200、500 mg/L 5种浓度铝离子的1/2 MS培养液处理玉米幼苗12天。观察其生长状况并测定生长量、可溶性糖和蛋白氮。结果表明:含铝离子20mg/L培养液处理下对植株无明显影响,而在100mg/L的培养液处理下对植株生长有显著的抑制作用,对根部的作用尤为明显。随铝离子浓度的升高,含水量降低,A l3+浓度与地上部分、根含水量之间的相关极显著;A l3+胁迫能诱导可溶性糖的积累,蛋白质和可溶性糖含量随着A l3+浓度增加而增加。
Maize seedlings were cultured in five 1/2MS culture solutions （without sucrose and hormone） with different concentrations of Al^3＋ （0,20,100,200,500mg/L） for 12 days. Their growing states ware observed, and their biomass, soluble sugar and protein ware determined. The results showed that 20mg/L of Al^3＋ has no effect, but 100mg/L of Al^3＋ has visible inhibition on aboveground sections and has much more visible inhibition on roots. With the increase of Al^3＋ concentration and decrease of water content, there is a visible relationships between Al^3＋ concentrations and percentage of water. The percentage of soluble sugar and protein increaes when the Al^3＋ concentration increases.
出处
《贵州师范大学学报（自然科学版）》
CAS
2005年第3期8-10,62,共4页
Journal of Guizhou Normal University：Natural Sciences
基金
贵州省自然科学基金资助项目(970398)
关键词
铝
玉米幼苗
生长
可溶性糖
蛋白氮
aluminum
maize seedlings
growth
soluble sugar
protein
作者简介
吴显芝（1979-），女，在读硕士研究生，研究方向：植物生理生态。
