多裂骆驼蓬提取物对玉米幼苗生长和细胞保护酶系的影响

以不同浓度的多裂骆驼蓬提取液浸种处理玉米,研究对幼苗生长和细胞保护酶系的影响。结果表明,多裂骆驼蓬提取液浸种处理种子的萌发和种子中α-淀粉酶活性受到明显抑制,抑制作用随处理浓度提高而增强,随培养时间延长而减弱。随着培养时间的延长,浸种处理可显著提高幼苗根系活力和叶片硝酸还原酶活性,促进植株生长,根和茎叶生长量增加,根冠比增大。多裂骆驼蓬提取液浸种后显著降低叶片过氧化氢酶(CAT)、抗坏血酸氧化酶(ACO)活性,提高过氧化物酶(POD)活性,促进根系和叶片过氧化物同工酶谱的数量表达。

Effect of Peganum multisectum on seedling growth and cell protective enzyme system in maize

Maize seeds were soaked in the solution of extracts of Peganum multisectum Maxim Bobr to study thew effect on seedling growth and cell protective enzyme system. The results showed that the germination of maize seeds and activity of α-amy lase were suppressed apparently by treatment and with increasing this in the concentration of extracts the cultural time sharply increased or prolonged. With the time of culture prolonged, the vigor of roots and activity of nitrate reductase in leaves were raised, impel the growth of plant with the dry matter weight of roots and shoot increasing and the ratio of root to shoot rising. The activity of catalase(CAT) and ascorbic acid oxidase(ACO) in leaves were reduced apparently, the activity of peroxidase(POD) was increased, impelled the quantity expression of isoperoxidase patterns in root and lea.f.