Response and Bioaccumulation Potential of Boerhavia diffusa L. Towards Different Heavy Metals
Journal Title: Журнал ÑтреÑÑ-физиологии и биохимии - Year 2013, Vol 9, Issue 3
Abstract
Effect of different concentrations of heavy metals such as Cadmium, Chromium, Mercury and Leadwas studied by cultivating rooted propagules of Boerhavia diffusafor a period of twenty days in Hoagland nutrient medium artificially contaminated with known concentration of those heavy metal ions. Concentrations of the metals selected to impart visible symptoms of growth retardation and to permit survival for prolonged period are 30µM cadmium chloride (CdCl[sub]2[/sub]), 400 µM potassium dichromate (K[sub]2[/sub]Cr[sub]2[/sub]O[sub]7[/sub]), 10 µM mercuric chloride (HgCl[sub]2[/sub]), and 600 µM lead acetate (CH[sub]3[/sub]-COO)[sub]2[/sub]Pb. More or less uniform growth performance was shown by the plants irrespective of the differences of concentration of the heavy metals. However, parameters such as root - and stem length, stomatal - and tolerance index varied among the treatments. Significant differences were observed in the heavy metal accumulation potential among metals and between plant parts such as root, stem and leaf and the pattern was dependent on growth period.
Authors and Affiliations
A. Abdussalam , Chandra Ratheesh , Hussain-koorimannil , Nabeesa Salim
Keywords
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