Journal of Integrative Agriculture ›› 2019, Vol. 18 ›› Issue (7): 1518-1528.DOI: 10.1016/S2095-3119(18)61991-4

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  • 收稿日期:2018-02-23 修回日期:2018-04-18 出版日期:2019-07-01 发布日期:2019-07-01

A review: The beneficial effects and possible mechanisms of aluminum on plant growth in acidic soil

Noor Muhammad1, 2, Gerald Zvobgo1, ZHANG Guo-ping1
 
  

  1. 1 Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, P.R.China
    2 Physiology/Chemistry Section, Central Cotton Research Institute, Multan 60500, Pakistan
  • Received:2018-02-23 Revised:2018-04-18 Online:2019-07-01 Published:2019-07-01
  • Contact: Correspondence ZHANG Guo-ping, Tel/Fax: +86-571-88982115, E-mail: zhanggp@zju.edu.cn
  • Supported by:
    This research was supported by the National Natural Science Foundation of China (31330055), the earmarked fund for China Agriculture Research System (CARS-05), and the Jiangsu Collaborative Innovation Center for Modern Crop Production, China (JCIC-MCP).

Abstract:

Aluminum (Al) is the third most abundant element in the earth’s crust and a major factor inhibiting plant growth and reducing crop yield in acidic soil.  Although there is substantial research on the phytotoxic effects and the underlying mechanisms of Al by applying Al alone hydroponically, soil is a complex medium containing numerous mineral elements that can interact with Al and other elements and their bioavailability in plants.  In this review, we describe the roles of Al in promoting plant growth, enhancing phosphorus availability and efficient use in plants, and alleviating H+, iron, and manganese toxicity in acidic conditions.  Furthermore, we discuss the possible mechanisms of enhanced abiotic stress tolerance induced by Al.  We also elucidate the role of Al in attracting plant growth promoting rhizo-bacteria (PGPR) and their interactions with plants by increasing organic exudates.

Key words: aluminum , interaction , iron ,  , manganese , organic acids ,  phosphorous ,  tolerance