Journal of Stress Physiology &
Biochemistry, Vol. 9 No. 3
2013, pp. 23-36 ISSN 1997-0838
Original Text Copyright (cc) 2013 by Abdussalam, Ratheesh
Chandra, Hussain-koorimannil, Salim
ORIGINAL ARTICLE
Data source : Google Scholar
QueryDate : 2016-12-24
Cites : 1
Response and Bioaccumulation
Potential of Boerhavia diffusa
L. Towards Different Heavy Metals
Abdussalam A.K.1,
Ratheesh Chandra P.1, Hussain-koorimannil2 and
Nabeesa Salim1*
1
Physiology and Biochemistry Division, Department of Botany, University
of Calicut, Kerala, India, 673 635 2 Department of Botany, Unity Women’s College, Manjeri,
Malappuram, Kerala, India, 676 122
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 (CdCl2), 400 µM potassium
dichromate (K2Cr2O7), 10 µM mercuric
chloride (HgCl2), and 600 µM lead acetate (CH3-COO)2Pb.
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.
Key
words: Heavy metals, Cd, Cr, Hg, Pb, bioaccumulation,
B. diffusa
