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接种AM真菌对烟苗抗旱性的影响

Effect of Arbuscular Mycorrhiza Fungi on Drought Tolerance of Tobacco Seedlings

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【作者】 王茂胜张长华陈晓明江龙

【Author】 WANG Mao-sheng1,3,ZHANG Chang-hua2,CHEN Xiao-ming2,JIANG Long1(1.College of Life Sciences,Guizhou University,Guiyang,Guizhou Provence 550025,China;2.Guizhou Institute of Tobacco Science,Guiyang,Guizhou Provence 550003,China;3.Zunyi Tobacco Branch Company,Zunyi,Guizhou Provence 563000,China)

【机构】 贵州大学生命科学学院贵州省烟草科学研究所遵义市烟草分公司

【摘要】 采用2×3双因子设计,研究了接种AM真菌(根内球囊霉和摩西球囊霉)后烟苗的抗旱性。结果表明,干旱可显著抑制非菌根烤烟苗生长,其叶片SOD和CAT活性下降,丙二醛含量和电导率升高;但接种AM真菌后的烟苗的SOD、CAT和POD活性、株高以及生物量均显著高于非菌根苗,其丙二醛含量和电导率显著低于非菌根苗。说明接种AM真菌可显著提高移栽后烟苗的早期抗旱性,减轻干旱的伤害作用。

【Abstract】 The effect of Arbuscular Mycorrhiza(AM) fungal strains,Glomas intraradices and Glomus mosseae,on the drought tolerance of tobacco seedlings was investigated by 2×3 two factors design experiments in the present work.The results showed that drought could significantly inhibit the growth of tobacco seedlings.As exposure to drought stress,SOD and CAT activities in leaves of tobacco seedlings obviously decreased,while the content of MDA and electric conductivity increased.The activities of SOD,CAT and POD,as well as height and biomass of tobacco seedlings inoculated with AM fungi were significantly higher than that of the AM-free,conversely,MDA accumulation and electric conductivity of tobacco seedlings inoculated with AM fungi were remarkably inhibited in comparison with that of the AM-free,suggesting that AM fungi might significantly improve the drought tolerance of tobacco seedlings.

【基金】 贵州省烟草专卖局科技项[2008-04];贵州省烟草公司遵义市公司科技项目[2012-02]
  • 【文献出处】 山地农业生物学报 ,Journal of Mountain Agriculture and Biology , 编辑部邮箱 ,2012年06期
  • 【分类号】S435.72
  • 【被引频次】16
  • 【下载频次】148
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