Effect of Lead Stress on Chlorophyll Content, Malondialdehyde and peroxidase activity in Seedlings of mung bean (Vigna radiata)
Journal Title: International Journal of Research in Chemistry and Environment (IJRCE) - Year 2013, Vol 3, Issue 3
Abstract
The presence of heavy metals in solid and liquid wastes is an important issue that is related to the pollution of the environment. These are one of the most important environmental pollutants and reaching dangerous amount requires more research. Among the heavy metals, lead particularly has become a cosmopolitan enviornmental pollutant. This study was conducted to investigate the effects of Pb stress on different varieties (Virat, SML-668, A1 Gold and K-851) of mung bean (Vigna radiata). V.radiata occupies a very important position in Indian agriculture. Seeds of four different mung bean varieties were grown under laboratory conditions in dark at 0- 1500 μM concentration of lead nitrate [Pb(NO3)2]. Distilled water was used as control treatment. To access the effect of lead stress on peroxidase activity, Malondialdehyde (MDA) and chlorophyll content,7 day old seedlings were used. The results revealed that the chlorophyll content of of mung bean seedlings significantly (p<0.05) decreased with increasing concentrations of [Pb(NO3)2]. MDA and peroxidase activity were significantly (p<0.05) increased proportionately (r > 0.9) to the increasing concentration of [Pb(NO3)2]. Increased amount of MDA was indicative for the formation of free radicals in plants under heavy metal stress, while increased level of peroxidase activity pointed to the occurrence of a scavenging mechanism. The decrease in chlorophyll content is an indication of reduction in the growth of the plants leading to a decrease in the yield.
Authors and Affiliations
Dugar Deshna, Bafna A.
Keywords
Related Articles
- EP ID EP87581
- DOI -
- Views 177
- Downloads 0
[b] Pre- and Post-Clearcutting Effects on Mass Loading and Leaching of Phosphorus and Carbon from Litterfall to Boreal Headwater Lakes[/b]
[i] Shoreline trees (predominantly black spruce, jack pine and white cedar) surrounding four boreal lakes located in northwestern Ontario, Canada were found to contribute an average of 0.3 + 0.1 (SD) kg ha-1 lake su...
Reduction of Fluoride at Municipal Waste Water Treatment Plant Badwai, Bhopal, (M.P.), India
Fluoride is a normal constituent of natural water samples. Its concentration varies significantly depending on the water sources both in urban and rural areas. Although both geological and man-made sources contribute to...
Synthesis and QSAR Studies of Some New Phthalyl Substituted 4–Thiazolidinones and Thiazoles as Potential Antibacterial Agents
Literature survey has shown the biological potential of thiazoles and thiazolidinones .Hence some new phthalyl substituted 4-Thiazolidinones and thiazoles were synthesized to evaluate their behaviour. A QSAR study has al...
Inter-Annual and Intra-Seasonal Variability of Mass PM2.5 Aerosol Level in the Ambient Air of a Mega City, Delhi, India
Mass PM2.5 aerosol data, collected at a busy traffic intersection of Delhi, (India) is statistically analyzed for duration from January 2007 to December 2009. Mean mass PM2.5 concentration was 111.4±73.3μg m -3 rang...
Importance of Industrial Waste in Maximizing the Yield of Rice and Its Effect of Soil Fertility in Coastal Region
A field experiment was conducted in the coastal region of Ramanathapuram district in Tamil Nadu to maximize the rice yield through integrated nutrient management and its effects on soil properties. There were four so...