Mechanisms of biochar-mediated alleviation of toxicity of trace elements in plants: a critical review

Muhammad Rizwan, Shafaqat Ali, Muhammad Farooq Qayyum, Muhammad Ibrahim, Muhammad Zia-ur-Rehman, Tahir Abbas, Yong Sik Ok

Research output: Contribution to journalArticle

149 Citations (Scopus)

Abstract

Trace elements (TEs) contamination is one of the main abiotic stresses which limit plant growth and deteriorate the food quality by their entry into food chain. In recent, biochar (BC) soil amendment has been widely reported for the reduction of TE(s) uptake and toxicity in plants. This review summarizes the role of BC in enhancing TE(s) tolerance in plants. Under TE(s) stress, BC application increased plant growth, biomass, photosynthetic pigments, grain yield, and quality. The key mechanisms evoked are immobilization of TE(s) in the soil, increase in soil pH, alteration of TE(s) redox state in the soil, and improvement in soil physical and biological properties under TE(s) stress. However, these mechanisms vary with plant species, genotypes, growth conditions, duration of stress imposed, BC type, and preparation methods. This review highlights the potential for improving plant resistance to TE(s) stress by BC application and provides a theoretical basis for application of BC in TE(s) contaminated soils worldwide.

Original languageEnglish
Pages (from-to)2230-2248
Number of pages19
JournalEnvironmental Science and Pollution Research
Volume23
Issue number3
DOIs
Publication statusPublished - 2016 Feb 1
Externally publishedYes

Fingerprint

Trace Elements
Trace elements
Toxicity
trace element
toxicity
Soil
Soils
soil
Growth
biochar
Food Quality
Food Chain
soil amendment
food quality
food chain
Pigments
Immobilization
Biomass
immobilization
Oxidation-Reduction

Keywords

  • Abiotic stress
  • Biochar
  • Immobilization
  • pH
  • Plants
  • Tolerance

ASJC Scopus subject areas

  • Environmental Chemistry
  • Pollution
  • Health, Toxicology and Mutagenesis

Cite this

Mechanisms of biochar-mediated alleviation of toxicity of trace elements in plants : a critical review. / Rizwan, Muhammad; Ali, Shafaqat; Qayyum, Muhammad Farooq; Ibrahim, Muhammad; Zia-ur-Rehman, Muhammad; Abbas, Tahir; Ok, Yong Sik.

In: Environmental Science and Pollution Research, Vol. 23, No. 3, 01.02.2016, p. 2230-2248.

Research output: Contribution to journalArticle

Rizwan, Muhammad ; Ali, Shafaqat ; Qayyum, Muhammad Farooq ; Ibrahim, Muhammad ; Zia-ur-Rehman, Muhammad ; Abbas, Tahir ; Ok, Yong Sik. / Mechanisms of biochar-mediated alleviation of toxicity of trace elements in plants : a critical review. In: Environmental Science and Pollution Research. 2016 ; Vol. 23, No. 3. pp. 2230-2248.
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