Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2020, Vol. 36 ›› Issue (32): 49-54.doi: 10.11924/j.issn.1000-6850.casb191200944

Special Issue: 生物技术

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Arbuscular mycorrhizal Fungi: Physiological Mechanism of Promoting Plant to Absorb Mineral Elements and Its Effect on Soil Sulfur

Sun Zixin1,2(), Cai Baiyan1,2()   

  1. 1Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin 150500
    2Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region, School of Life Sciences, Heilongjiang University, Harbin 150080
  • Received:2019-12-13 Revised:2020-02-05 Online:2020-11-15 Published:2020-11-19
  • Contact: Cai Baiyan E-mail:648080208@qq.com;caibaiyan@126.com

Abstract:

Because the population keeps increasing, it is urgent for people to get food with high-quality. The large-amount use of chemical fertilizer results in a series of environmental problems, such as the residue of harmful substances, soil and water pollution, soil hardening and relative lack of some nutrients, etc. Arbuscular mycorrhizal (AM) is a symbiotic structure formed by plant roots and AM fungi (AMF), and is common in soil. Studies have shown that it can affect the absorption and transport soil elements by plant, by secreting metabolites, increasing connection between roots and soil, and regulating the forms of some soil elements. Sulfur is one of the essential elements for plants. Because the needs of S are lower than those of N, P, K, S is often ignored in the process of fertilization in modern agriculture, so the lack of S in soil is gradually becoming a limiting factor in the development of agriculture in China. In order to solve the above problem, this article mainly summarizes and analyzes the physiological mechanism of AMF affecting the absorption and transport of soil mineral elements by plants. And according to the characteristics of its action, we analyze the influence of AM symbiosis on sulfur absorption and transport by plant, point out the feasibility of AMF used as biological fertilizer, and provide new ideas for fertilizer reduction and soil sulfur deficiency.

Key words: AM fungi, mineral elements, transport pathway, transport mechanism, sulfur

CLC Number: