The Effect of Plant Growth Regulator for Phytoremediation

Abstract

Phytoremediation is the use of vegetation for in situ treatment of contaminated soils, sediments, and water. It is best applied at sites with shallow contamination of metal pollutants. The term “assisted phytoextraction” usually refers to the process of applying a chemical additive to contaminated soil in order to increase the metal uptake by crop plants. In the process of phytoremediation, applying plant growth regulator can promote phytoextraction effects. This paper reviewed the effect of the plant growth regulator for the biological growth, plant transpiration and heavy metal stress. the increase in metal accumulation in upper parts of plant could be related to both the role of PGRs in the enhancement of plant resistance to stress (as toxic metals) and the increase in transpiration rate, i.e. flux of water-soluble soil components and contaminants by the regulation of stomatal opening.

Proline-mediated regulation on jasmonate signals repressed anthocyanin accumulation through the MYB-bHLH-WDR complex in rice under chromium exposure

“…Recently, plant-derived growth regulators (PDGRs) have been used to minimize the adverse effects imposed by heavy metals, due to their availability ( Yang et al, 2021 ). Compared with other chemical reagents used, PDGRs not only improve the resistance capacity of plants against heavy metal stresses but also alter the distribution pattern of heavy metals in plant tissues ( Hao et al, 2012 ). Due to their different chemical properties and occurrence in plant cells, the regulatory mechanisms of PDGRs in alleviating phytotoxicity caused by heavy metals is different.…”