Cadmium stress tolerance in plants: a key role of endogenous and exogenous salicylic acid

  • Aicha Belkadhi University of Tunis El Manar http://orcid.org/0000-0001-5911-0974
  • Wahbi Djebali University of Tunis El Manar
  • Hédia Hédiji University of Tunis El Manar
  • Wided Chaïbi University of Tunis El Manar

Abstract

Cadmium (Cd) has become one of the major metal stresses which pose a serious threat to plants and animals. In this context, endogenous and exogenous salicylic acid (SA) could play an important role in mitigating the uptake of the Cd ions and providing immunity to plants against the heavy metal stress. SA enhances the resistance capacity of contaminated plants, which, however, depends on the metal concentration and the duration of the treatment. Moreover, SA is considered as a promising signal molecule for improving the efficiency of phytoremediation, and, consequently, growing of safe crops in metal polluted areas. The recent developments in the probable mechanisms by which SA could enhance the tolerance of plants to heavy metals and how it could have an effect on phytoremediation of Cd from contaminated soils are discussed.

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Author Biography

Aicha Belkadhi, University of Tunis El Manar
I joined the Department of Agronomy and Plant Breeding (CSIC/Institute of Sustainable Agriculture; Prof Antonio De Haro) in a pre-doctoral training in 2010 to study the flax and Brassica carinata response to abiotic stresses. In 2011-2012, I moved to Edmonton (Canada) and started studying the mechanisms of transcription in plants in the Department of Biological Sciences/Faculty of Science (UniversityofAlberta, Prof Michael Deyholos). In 2014, I obtained my Doctorate Degree in Biological Sciences.

 

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Published
2016-02-18
How to Cite
BELKADHI, Aicha et al. Cadmium stress tolerance in plants: a key role of endogenous and exogenous salicylic acid. Plant Science Today, [S.l.], v. 3, n. 1, p. 48-54, feb. 2016. ISSN 2348-1900. Available at: <http://horizonepublishing.com/journals/index.php/PST/article/view/181>. Date accessed: 16 oct. 2017. doi: https://doi.org/10.14719/pst.2016.3.1.181.
Section
Review Articles

Keywords

cadmium stress; endogenous salicylic acid; exogenous elicitor; phytoremediation