Phytomanagement of heavy metals in contaminated soils using sunflower: A review

Muhammad Rizwan, Shafaqat Ali, Hina Rizvi, Jörg Rinklebe, Daniel C.W. Tsang, Erik Meers, Yong Sik Ok, Wajid Ishaque

Research output: Contribution to journalReview article

38 Citations (Scopus)

Abstract

Contamination of soils with heavy metals (HMs) is an important issue due to the contamination of agricultural crops, which are further transferred into the food chain. Phytoremediation is an emerging method of remediating metal-contaminated soils. Sunflower has been widely adopted for phytomanagement of HM-contaminated soils owing to its high biomass production and capacity for metal accumulation. Sunflowers can tolerate the toxic effects of certain HMs through different mechanisms, such as enhancements in antioxidant enzyme activities, deposition in nonactive parts of the plant, and stimulation of osmolytes. Stress caused by HMs affected negatively the seed germination, nutritional status, photosynthesis, and growth of sunflower. However, the responses of sunflowers to this stress vary with cultivar/variety, soil type, metal type, dose, and duration of metal exposure. This review critically summarizes the effects of HMs in sunflowers and examines field-relevant approaches to improve the phytoextraction capability of sunflowers. Proper selection of tolerant cultivars along with agronomic practices may be an effective strategy for the phytomanagement of soils contaminated with HMs.

Original languageEnglish
Pages (from-to)1498-1528
Number of pages31
JournalCritical Reviews in Environmental Science and Technology
Volume46
Issue number18
DOIs
Publication statusPublished - 2016 Sep 16
Externally publishedYes

Fingerprint

Heavy metals
heavy metal
Soils
metal
Metals
cultivar
Contamination
Photosynthesis
nutritional status
Enzyme activity
phytoremediation
Antioxidants
food chain
antioxidant
Crops
enzyme activity
Seed
contaminated soil
soil type
germination

Keywords

  • Chelating agents
  • heavy metal tolerance
  • phytoremediation
  • plant growth regulators

ASJC Scopus subject areas

  • Environmental Engineering
  • Water Science and Technology
  • Waste Management and Disposal
  • Pollution

Cite this

Rizwan, M., Ali, S., Rizvi, H., Rinklebe, J., Tsang, D. C. W., Meers, E., ... Ishaque, W. (2016). Phytomanagement of heavy metals in contaminated soils using sunflower: A review. Critical Reviews in Environmental Science and Technology, 46(18), 1498-1528. https://doi.org/10.1080/10643389.2016.1248199

Phytomanagement of heavy metals in contaminated soils using sunflower : A review. / Rizwan, Muhammad; Ali, Shafaqat; Rizvi, Hina; Rinklebe, Jörg; Tsang, Daniel C.W.; Meers, Erik; Ok, Yong Sik; Ishaque, Wajid.

In: Critical Reviews in Environmental Science and Technology, Vol. 46, No. 18, 16.09.2016, p. 1498-1528.

Research output: Contribution to journalReview article

Rizwan, Muhammad ; Ali, Shafaqat ; Rizvi, Hina ; Rinklebe, Jörg ; Tsang, Daniel C.W. ; Meers, Erik ; Ok, Yong Sik ; Ishaque, Wajid. / Phytomanagement of heavy metals in contaminated soils using sunflower : A review. In: Critical Reviews in Environmental Science and Technology. 2016 ; Vol. 46, No. 18. pp. 1498-1528.
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