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Effects of dual inoculation of AMF and rhizobium on alfalfa (Medicago sativa) root rot caused by Microdochium tabacinum

文献类型： 外文期刊

作者： Gao, Ping 1 ; Guo, Yane 1 ; Li, Yingde 1 ; Duan, Tingyu 1 ;

作者机构： 1.State Key Lab Grassland Agroecosyst, Lanzhou, Gansu, Peoples R China

2.Lanzhou Univ, Coll Pastoral Agr Sci & Technol, Lanzhou 730020, Gansu, Peoples R China

3.Shanghai Acad Agr Sci, Ecoenvironm & Plant Protect Res Inst, Shanghai 201403, Peoples R China

关键词： Alfalfa; AM fungi; Rhizobium; Co-inoculation; Root rot

期刊名称：AUSTRALASIAN PLANT PATHOLOGY （ 影响因子：1.599； 五年影响因子：1.708 ）

ISSN： 0815-3191

年卷期： 2018 年 47 卷 2 期

页码：

收录情况： SCI

摘要： This experiment aimed to test the combined effects of arbuscular mycorrhizal fungi (AMF) and rhizobium (Sinorhizobium medicae) on the alfalfa root rot (Microdochium tabacinum) disease. The results show a significant increase in alfalfa growth, induced by AMF, independent of inoculation with rhizobium. Inoculation with S. medicae increased alfalfa N concentration compared with un-inoculated plants. In the presence of both AMF and S. medicae, the N, P concentration of plant were significantly greater than in their absence. M. tabacinum caused plant branches wilt and significantly reduced plant total dry weight as well as N, P concentration. Inoculation of AMF increased nodule numbers, independent of the presence of other factors. AMF and rhizobium reduced alfalfa branches discoloration by 18%. Plant disease related enzyme, peroxidase (POD), and catalase (CAT) showed a positive response to both AMF and rhizobium, while the malondialdehyde (MDA) content responded negative.

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