alexa Phosphorus Amendment Reduces The Toxicity Of Chromium As In Case Of Raphanus Sativus
ISSN: 2157-7587

Hydrology: Current Research
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3rd International Conference on Hydrology & Meteorology
September 15-16, 2014 Hyderabad International Convention Centre, India

Shardendu and D Sayantan
Accepted Abstracts: Hydrol Current Res
DOI: 10.4172/2157-7587.S1.015
The toxicity of chromium (mainly Cr6+), a heavy metal is common in both plants and animals. However, there are certain soil nutrients like phosphorus (P), that interfere with the Cr during the uptake process in plants. The toxic effect of Cr and its amelioration by P was determined, in terms of physiological and anti-oxidative parameters, in Raphanus sativus L. The experiment was conducted as two factor randomized 5x5 design, where five concentrations of Cr was supplied for 28 days to R. sativus, and each Cr concentration was amended with 5 concentrations of P. The dose dependent physiological toxicity was recorded as increase in the accumulation of Cr along with decrease in the levels of total chlorophyll in leaves, biomass, total P and N contents of roots. The oxidative toxicity was visible as increase in the levels of superoxide dismutase (SOD), catalase (CAT), peroxidise (POD) enzymes as well as malondialdehyde (MDA) contents. Among the P amended samples, there was marked decrease (of up to 3-folds) in the toxicity of Cr, as there was improvement in the chlorophyll and biomass contents along with decrease in the levels of antioxidant enzymes such as SOD, CAT and POD, as well as MDA. The above results may contribute to the society in the sense that if P content of fertilizers is increased, the amount of Cr entering into the food chain via primary producers decreases leading to lower level of biomagnifications in the forthcoming trophic levels of food chain.
Shardendu has obtained his MSc and PhD degrees from Banaras Hindu University, Varanasi, India. He is presently serving Patna University, India as Associate Professor in Botany, and holding the post of Coordinator of Undergraduate studies in Environmental Science in the department. He is a successful researcher with more than 35 publications in various national and international journals like New Phytologist, Environment International, Chemosphere, Ecotoxicology and Environmental Safety etc., with various impact factors.
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