Biotechnology Bulletin ›› 2020, Vol. 36 ›› Issue (7): 170-181.doi: 10.13560/j.cnki.biotech.bull.1985.2019-1211

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Physiological and Molecular Mechanisms of Plant Co-evolution Responses to Phosphorous Deficiency and Aluminum Toxicity

WU Pei1, LI Hao1, ZAO Hao-long1, WANG Yu-yun1, YANG Jian-li2, TANG Li1, FAN Wei1,3   

  1. 1. College of Resources and Environment,Yunnan Agricultural University,Kunming 650201;
    2. State Key Laboratory of Plant Physiology and Biochemistry,College of Life Sciences,Zhejiang University,Hangzhou 310058;
    3. National& Local Joint Engineering Research Center on Germplasm Innovation & Utilization of Chinese Medicinal Materials in Southwest China,Key Laboratory of Medicinal Plant Biology of Yunnan Province,Yunnan Agricultural University,Kunming 650201
  • Received:2019-12-12 Online:2020-07-26 Published:2020-07-28

Abstract: Acid soils comprise approximately 50% of potential arable lands worldwide. Phosphorus(P)deficiency and aluminum(Al)toxicity are two major nutritional stress factors limiting plant growth on acid soils. Studies have shown that organic acids(OA),hormones and iron(Fe)homeostasis play a core role in co-evolution and signal crosstalk of plant responses to both stresses. This article systematically reviewed the physiological and molecular mechanisms of OA secretion,pleiotropic regulation of STOP1/ALMT1 and STAR1/ALS3,hormone signal transduction and cell wall-related kinases in regulating plant root development and root architecture to improve P availability and Al resistance on acid soils and also prospected the visions in this field.

Key words: acid soils, phosphorus deficiency, aluminum toxicity, signal crosstalk, stress response