ABSTRACT

Arsenic (As) is a long drawn problem of the country and state of Bengal. Arsenic contamination can happen by natural as well as anthropogenic sources. Contamination through food chain happens primarily due to the soil As. Reclamation of As-contaminated soil by the engineered device is expensive hence the general practice is phytoextraction by hyperaccumulator plants as these do not show much symptoms of stress. Present study involves a hyper and a non-hyperaccumulator plant for phytoextraction study to analyze the stress responses. The results show that the non-hyperaccumulator plant has increased accumulation of Proline, MDA, phenol the stress biomarkers and lower value of the concentration of protein and chlorophyll compared to the hyperaccumulator Brassica used in the study. Total biomass was more in the non-hyperaccumulator plant in lower As dose. Hence as an alternative to the conventional approach, selected varieties of non-hyperaccumulator plants may be used for phytoextraction of As.