丛枝菌根真菌与蚜虫对马铃薯激素动态调控的研究  

Study on the dynamic regulation of hormones in potato inoculated with arbuscular mycorrhizal fungi and aphids

作　　者：陈培钦[1,2] 王亚萍 文雅 赵博翔 王明元[1,2] Chen Peiqin;Wang Yaping;Wen Ya;Zhao Boxiang;Wang Mingyuan(Institute of Horticulture Science and Engineering,Huaqiao University,Xiamen,Fujian 361021,China;Department of Bioengineering and Biotechnology,Huaqiao University,Xiamen,Fujian 361021,China)

机构地区：[1]华侨大学园艺科学与工程研究所,福建厦门361021 [2]华侨大学生物工程与技术系,福建厦门361021

出　　处：《东南园艺》2025年第1期15-22,共8页Southeast Horticulture

基　　金：福建省星火项目(2023S0037);福建省高校产学合作项目(2023N5011)。

摘　　要：【目的】研究丛枝菌根(Arbuscular mycorrhizal,AM)真菌对植物响应生物胁迫过程激素的影响。【方法】以接种AM真菌根内球囊霉属(Glomus intraradices)的马铃薯植株为研究对象,探讨被蚜虫刺吸后马铃薯受伤部位上下组织中激素GA_(3)、ABA、IAA和SA的动态变化。【结果】马铃薯接种AM真菌可抑制GA_(3)、ABA、IAA和SA等4种激素的产生,尤其对ABA的抑制最为明显,其菌根贡献率高达-125.46%。被蚜虫刺吸12 h后,马铃薯受伤叶片部位激素含量迅速提升,然后沿着受伤叶片向下传导,根系中激素含量最低。菌根与蚜虫对马铃薯激素的影响均显著,然而二者互作效应无显著差异。【结论】接种AM真菌后马铃薯对生物胁迫的防御反应下降,说明接种AM真菌可能提升了宿主植物的抗性,引起宿主植物对生物胁迫响应下降。【Objective】To investigate the effects of arbuscular mycorrhizal(AM)fungi on plant hormone response to biological stress.【Method】The potato seedlings inoculated with AM fungi Glomus intraradices were used to investigate the dynamic changes of hormones GA_(3),ABA,IAA,and SA in the upper and lower tissues of potato injury sites after aphid infection.【Result】AM fungi inhibited the production of four hormones,especially ABA,with a mycorrhizal contribution rate of up to -125.46%.After 12 hours of aphid infection,the hormone contents in the injured part of potatoes rapidly increased,and then transmitted downwards along the injured part,with the lowest hormone content in the root system.The effects of mycorrhizal fungi and aphids on potato hormones were both significant,but there was no significant difference in their interaction effects.【Conclusion】Inoculation with AM fungi could reduce the defense response of potatoes to biological stress,indicating that AM fungi could improve host plant resistance to biological stress and result in decrease of response to biological stress of host plant.

关 键 词：菌根 马铃薯 激素 信号传递 蚜虫 

分 类 号：S532[农业科学—作物学]