“…Plants were proposed for treating the wastewater around 300 years ago ( Hartman, 1975 ). Presently a number of plant species such as Amaranthus spinosus, A. hypochondriacus Chrysopogon zizanioides, Brassica juncea , Ricinus communis, Chromolaena odorata, Ageratum conyzoides, Ipomoea carnea, Prosopis juliflora, Lantana camara, Parthenium hysterophorus, Fagopyrum esculentum, Odontarrhena chalcidica, Tagetes patula, T. erecta, and Odontarrhena chalcidica, have been identified which helpremediate HM contaminated soil ( Bauddh and Singh, 2012 ; Bauddh and Singh, 2015 ; Huang et al, 2019 ; Chen et al, 2020a ; Raza et al, 2020 ; Biswal et al, 2021 ; Cui et al, 2021 ; Gonzaga et al, 2021 ; Nugroho et al, 2021 ; Singh et al, 2021 ). In addition, plants like Nicotiana tabacum , Arabidopsis thaliana, Beta vulgaris and Sedum alfredii have been genetically modified with suitable bacterial genes from Caenorhabditis elegans, Saccharomyces cerevisiae, Streptococcus thermophilus, Pseudomonas fuorescens and employed for remediating the targeted contaminants ( Daghan et al, 2013 ; Liu et al, 2015a ; Wang et al, 2019 ; Nedjimi, 2021 ).…”