Silicon occurrence, uptake, transport and mechanisms of heavy metals, minerals and salinity enhanced tolerance in plants with future prospects: A review

JOURNAL OF ENVIRONMENTAL MANAGEMENT

卷:183

Review

Imtiaz, Muhammad¹  Rizwan, Muhammad Shahid¹  Mushtaq, Muhammad Adnan²  Ashraf, Muhammad³  Shahzad, Sher Muhammad³  Yousaf, Balal⁴  Saeed, Dawood Anser⁵  Rizwan, Muhammad¹  Nawaz, Muhammad Azher⁵  Mehmood, Sajid¹  Tu, Shuxin^1,6 

[1] Huazhong Agr Univ, Coll Resources & Environm, Microelement Res Ctr, Wuhan 430070, Peoples R China

[2] Huazhong Agr Univ, Coll Plant Sci & Technol, Natl Ctr Oil Crop Improvement, Natl Key Lab Crop Genet Improvement, Wuhan 430070, Peoples R China

[3] Univ Sargodha, Univ Coll Agr, Dept Soil & Environm Sci, Sargodha 40100, Pakistan

[4] Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Crust Mantle Mat & Environm, Hefei 230026, Peoples R China

[5] Huazhong Agr Univ, Coll Hort & Forestry Sci, Key Lab Hort Plant Biol, Wuhan 430070, Peoples R China

[6] Hubei Collaborat Innovat Ctr Grain Ind, Jingzhou 434023, Peoples R China

关键词: Silicon;    Heavy metals;    Salinity;    Alleviation;    Abiotic stress;    Plant;   

DOI  :  10.1016/j.jenvman.2016.09.009

来源: Elsevier

【 摘 要 】

Recently, heavy metals pollution due to industrialization and urbanization, use of untreated wastewater and unreasonable use of pesticides and fertilizers is increasing rapidly, resulting in major threat to the environment and contaminate soils. Silicon (Si) is the second most abundant element in the earth crust after oxygen. Although it's higher accumulation in plants, yet Si has not been listed as essential nutrient however, considered as beneficial element for growth of plants particularly in stressed environment. Research to date has demonstrated that silicon helps the plants to alleviate the various biotic and abiotic stresses. This review article presents a comprehensive update about Si and heavy metals, minerals and salinity stresses, and contained the progress about Si so far done worldwide in the light of previous studies to evaluate the ecological importance of Si. Moreover, this review will also be helpful to understand the Si uptake ability and its benefits on plants grown under stressed environment. Further research needs for Si-mediated mitigation of heavy metals and mineral nutrients stresses are also discussed. (C) 2016 Elsevier Ltd. All rights reserved.

【 授权许可】

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