Journal of Plant Physiology & Pathology ISSN: 2329-955X

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Research Article, J Plant Physiol Pathol Vol: 2 Issue: 1

Modulation of Oxidative Stress Responsive Enzymes and Non-Enzymatic Components by Excess Nickel in C. lanatus Var.Fistulosus

Pratima Sinha*
Botany Department, Lucknow University, Lucknow, India
Corresponding author : Pratima Sinha
Botany Department, Lucknow University, Lucknow –226007,Uttar Pradesh, India
Tel: 0522-2393893
E-mail: [email protected]
Received: February 27, 2014 Accepted: April 1, 2014 Published: April 05, 2014
Citation: Sinha P (2014) Modulation of Oxidative Stress Responsive Enzymes and Non-Enzymatic Components by Excess Nickel in C. Lanatus Lanatus Var. Fistulosus. J Plant Physiol Pathol 2:1. doi:10.4172/2329-955X.1000119

Abstract

Modulation of Oxidative Stress Responsive Enzymes and Non-Enzymatic Components by Excess Nickel in C. lanatus Var.Fistulosus

This study focuses on induction of oxidative stress and antioxidative defense mechanism on exposure to excess nickel (Ni) in C. lanatus L. var. fistulosus (C. lanatus). Plants grown in refined sand and treated with nickel (as nickel sulphate) at 0.0001 (control), 0.05, 0.1, 0.2, 0.4 and 0.5 mM. The primary site of Ni toxicity was shoots where young leaves developed interveinal chlorosis along with marked reduction in growth, after nine days of excess Ni supply (d 42). At excess Ni (>0.05 mM), biomass, concentrations of chlorophyll, carotenoides, iron, Hill reaction activity, and activity of catalase were decreased, whereas activity of peroxidase, ascorbate peroxidse, superoxide dismutase, proline and lipid peroxidation in leaves increased

Keywords: C. lanatus var. fistulosus; Critical concentration; Enzymes; Tissue concentration

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