Record Details

Phytotoxicity of zinc, chromium (VI) and cadmium in purging nut (Jatropha curcas) seedlings grown in hydroponics

Indian Agricultural Research Journals

View Archive Info
 
 
Field Value
 
Title Phytotoxicity of zinc, chromium (VI) and cadmium in purging nut (Jatropha curcas) seedlings grown in hydroponics
 
Creator Acharya, Somen
Sharma, D K
Joshi, H C
 
Subject Heavy metals; Hydroponics; Jatropha curcas; Oxidative stress; Phytotoxicity
 
Description This study investigated physiological, morphological, biochemical and metal uptake patterns in purging nut (Jatropha curcas L.) seedlings exposed to zinc (Zn), chromium (Cr) and cadmium (Cd) in a hydroponic system. Uptake of metals in all parts of the seedlings was found to be highest for Zn, followed by Cd and Cr. Catalase (CAT) and superoxide dismutase (SOD) activities were increased on exposure to heavy metals, but 5 mM Cd and Cr significantly inhibited SOD activity compared to Zn. This may reflect damage to the plant due to lipid per-oxidation as shown by a decrease in the % membrane stability index at higher metal concentrations. With increase in concentration of all the heavy metals tested, there was a significant decrease in chlorophyll content, however there was a stimulatory effect at low Zn concentrations (up to 0.5 mM). Root length and surface area were both significantly decreased with increasing metal concentration.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2012-08-14
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/23046
 
Source The Indian Journal of Agricultural Sciences; Vol 82, No 8 (2012)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/23046/11180
 
Rights Copyright (c) 2014 The Indian Journal of Agricultural Sciences