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以芦笋品种‘NJ978’为材料,研究了丛枝菌根真菌(AMF)对NaC1胁迫下芦笋幼苗生长、渗透调节物质及抗氧化酶活性的影响.结果表明:在非盐条件下,接种AMF可以显著促进芦笋植株的生长,提高拟叶可溶性蛋白质量分数、SOD、POD和CAT活性.在NaC1胁迫下,芦笋幼苗生长受到严重抑制,株高、地上部和地下部鲜质量、干质量均显著降低,接种AMF可以有效缓解盐胁迫对芦笋幼苗生长的抑制.在盐胁迫下,芦笋拟叶可溶性蛋白质量分数、MDA质量分数、电解质渗透率和POD活性均比对照显著升高,SOD和CAT活性显著降低;接种AMF可以显著提高盐胁迫下芦笋拟叶可溶性蛋白质量分数、SOD、POD和CAT活性,而显著降低MDA质量分数和电解质渗透率.由此表明,盐胁迫下接种AMF可通过促进芦笋体内渗透调节物质积累和提高抗氧化酶活性,有效降低细胞膜脂过氧化水平,从而缓解盐胁迫对植株的伤害.
The effect of arbuscular mycorrhizal fungi (AMF) on the growth, osmotic adjustment substances and antioxidant enzyme activities of asparagus seedlings under NaC1 stress was studied using asparagus cultivar ’NJ978’ .The results showed that under non-salt conditions AMF could inoculate Significantly increased the soluble protein content, SOD, POD and CAT activities of Asparagus officinalis L. Under NaC1 stress, the growth of Asparagus officinalis L. seedlings was severely inhibited and the fresh weight and dry weight of shoots and shoots were significantly decreased , Inoculation of AMF could effectively alleviate the inhibition of salt stress on the growth of asparagus seedlings.Under salt stress, soluble protein content, MDA content, electrolyte permeability and POD activity of the asparagus leaf were significantly higher than those of the control, and the activities of SOD and CAT were significantly AMF could significantly increase the soluble protein content, SOD, POD and CAT activities of asparagus, but significantly reduce the MDA content and the electrolyte permeability.The results showed that inoculation of AMF under salt stress could promote the growth of asparagus Osmotic regulation of material accumulation and increase antioxidant enzyme activity, effectively reduce cell membrane lipid peroxidation levels, thereby alleviating salt damage to plants.