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Chinese Journal of Applied Ecology ›› 2021, Vol. 32 ›› Issue (5): 1890-1902.doi: 10.13287/j.1001-9332.202105.036

• Reviews • Previous Articles    

The suppression effect and mechanism of arbuscular mycorrhizal fungi against plant root rot.

HUANG Yong-ming, JIANG Ying-chun, WANG Zhi-jing, SONG Fang, HE Li-gang, TIAN Rui, WU Li-ming*   

  1. Institute of Fruit and Tea, Hubei Academy of Agricultural Sciences, Wuhan 430064, China
  • Received:2020-08-09 Accepted:2021-02-07 Online:2021-05-15 Published:2021-11-15
  • Contact: *E-mail: 270246387@qq.com
  • Supported by:
    National Key R&D Program of China (2019YFD1001400), the Open Fund of Key Laboratory of Integrated Pest Management on Crops in Central China, Ministry of Agriculture, China/Hubei Key Laboratory of Crops Diseases, Insect Pests and Weeds Control (2018ZTSJJ10) and the Hubei Agricultural Science and Technology Innovation Fund (2019-620-000-001-023).

Abstract: Root rot is a serious soil-borne disease, with negative consequences on crop yield and quality. Arbuscular mycorrhizal (AM) fungi are a group of soil microorganisms, which play important physiological and ecological functions by establishing symbionts with plant roots. AM fungi could induce plant resistance against root rot by regulating physiological and biochemical processes. As a biological agent, AM fungi are used to antagonize soil-borne diseases such as root rot, which is a hotspot in the field of plant-microorganism interaction. We comprehensively reviewed the suppression effect of AM fungi on plant root rot, and the effect of AM fungi on root morphology of host plant, plant nutrition levels, as well as their role in competing with pathogens for ecological sites, activating plant defense systems, and regulating root exudates. Finally, we discussed the potential mechanism of AM fungi inhibiting root rot, as well as the practical problems in the efficient utilization of AM fungi were discussed, in order to provide the theoretical basis for the biological control protocol to antagonize root rot with AM fungi.

Key words: arbuscular mycorrhizal fungi, root rot, suppression effect, mechanism