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接种AM真菌的苗木不论是否干旱胁迫平均株高、平均根长和叶绿素含量都显著增加,丙二醛含量、游离脯氨酸和电解质透出率则显著降低。对4种抗旱指标的测定结果显示,接种处理后各种叶绿素含量高于对照,脯氨酸含量升高,丙二醛含量下降,膜透性降低,这说明接种菌根真菌可以增强宿主植物的抗旱性,促进渗透调节物质脯氨酸的合成,使得膜质过氧化产物丙二醛含量降低,对细胞膜损伤减轻,膜透性降低,维持干旱下植物正常的生理生化活动。
Seedlings of AM fungi inoculated with AM fungi had significantly increased average plant height, average root length and chlorophyll content, while malondialdehyde content, free proline and electrolyte leakage significantly decreased. The results of four drought resistance indexes showed that after inoculation, the content of chlorophyll was higher than that of the control, the content of proline increased, the content of malondialdehyde decreased and the membrane permeability decreased, which indicated that inoculation of mycorrhizal fungi could enhance the Drought resistance and promote the synthesis of proline, an osmoregulation substance, the malondialdehyde content of membrane peroxidation products is reduced, the cell membrane damage is alleviated, membrane permeability is reduced, and the normal physiological and biochemical activities of plants under drought are maintained.