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Anitha, C. T.
- Phytochemical Screening and Antibacterial Activity of Mimosa pudica L. and Mimosa invisa L. Against Selected Microbes
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1 Department of Botany, Sree Narayana College, Nattika-680 566, Thrissur Distt., Kerala, IN
1 Department of Botany, Sree Narayana College, Nattika-680 566, Thrissur Distt., Kerala, IN
Source
Nature Environment and Pollution Technology, Vol 11, No 3 (2012), Pagination: 431-433Abstract
The antibacterial activity of Mimosa pudica and Mimosa invisa were evaluated. The extract of these plants was obtained by using methanol and water as solvents. Antibacterial activity was screened by using agar well diffusion method against pathogenic bacteria, i.e., Bacillus subtilis, Staphylococcus aureus, Klebsiella pneumoniae and Pseudomonas fluorescens. M. pudica and M. invisa showed highest antibacterial activity against K. pneumoniae and B. subtilis respectively. Phytochemical screening revealed that M. pudica and M. invisa, in general, contain active constituents like alkaloids, tannins, flavanoids, steroids, phenols, glycosides, terpenoids, anthraquinones, etc. having a definite specificity.Keywords
Antibacterial Activity, Pathogenic Bacteria, Mimosa pudica, Mimosa invisa.- Retardation of Toxic Effects of Chromium in Vigna unguiculata (L.) Walp by the Application of Pseudomonas fluorescens
Abstract Views :158 |
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Authors
Affiliations
1 Department of Botany, Sree Narayana College, Nattika-680 566, Thrissur (Dt.), Kerala, IN
1 Department of Botany, Sree Narayana College, Nattika-680 566, Thrissur (Dt.), Kerala, IN
Source
Nature Environment and Pollution Technology, Vol 11, No 2 (2012), Pagination: 187-192Abstract
Heavy metal pollution of soil is a significant environmental problem and has its negative impact on human health and agriculture. Treatment of cowpea (Vigna unguiculata (L.) Walp) with different concentrations of chromium (III) oxide (Cr2O3) decreased the germination and early growth of plants. This effect was dose-dependent and was more significant at higher doses of Cr2O3. Chromium trioxide application significantly retarded germination, morphological and biochemical parameters compared to untreated control plants. Application of Pseudomonas fluorescens reduced the inhibitory effect of Cr2O3 by increasing the germination vigour at various level of concentrations. These results help to understand possible use of Pseudomonas fluorescens in bioremediation.Keywords
Toxic Effects of Chromium, Vigna unguiculata, Pseudomonas fluorescens, Bioremediation.- Amelioration of Toxic Effects of Lead in Vigna radiata (L.) Wilczek with the Application of Pseudomonas fluorescens
Abstract Views :185 |
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Authors
Affiliations
1 Department of Botany, Sree Narayana College, Nattika-680 566, Thrissur (dt), Kerala, IN
1 Department of Botany, Sree Narayana College, Nattika-680 566, Thrissur (dt), Kerala, IN
Source
Nature Environment and Pollution Technology, Vol 10, No 4 (2011), Pagination: 505-510Abstract
Pollution by heavy metals is one of the important threatening factors in the world. The present study was intended to analyse the effect of lead (Pb) on seed germination, growth and chlorophyll content of Vigna radiata (L). Wilczek. Germination parameters like germination percentage, radicle and hypocotyl length, vigour index and growth index were studied, and found to be decreased with increasing concentrations. Phytotoxicity level increased at elevated concentrations. At higher concentrations, severe morphological symptoms and reduction in chlorophyll content were observed. However, by treatment with Pseudomonas fluorescens, a plant growth promoting rhizobacterium, a significant increase in all parameters was observed.Keywords
Heavy Metals, Lead, Vigna radiata, Bioremediation, Pseudomonas fluorescens.- The Study of Water Quality of Tripunithura, a City Suburb of Ernakulam District in Kerala, India
Abstract Views :124 |
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Authors
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1 Post Graduate Department of Botany, Sree Narayana College, Nattika-680 566, Thrissur, Kerala, IN
1 Post Graduate Department of Botany, Sree Narayana College, Nattika-680 566, Thrissur, Kerala, IN
Source
Nature Environment and Pollution Technology, Vol 10, No 4 (2011), Pagination: 583-588Abstract
In the present study, physico-chemical and microbiological characteristics of different sources of surface and groundwaters in Tripunithura, a suburb of Ernakulam district, Kerala were determined during February 2011. The objective of the study was to asses the suitability of water for human consumption and other domestic purposes. Water samples from three different densely populated localities were collected and analysed for various parameters using standard methods. The physico-chemical parameters of home well water and pond water, with the exception of iron value in pond water, were satisfactory whereas bore well water and river water exhibited all the values as exceeding maximum permissible limit with a few exceptions of sulphate and dissolved oxygen in bore well water and nitrate in river water. The microbiological analysis revealed that with the exception of bore well water, all other waters fail to satisfy the prescribed standards set for drinking water. Therefore, the study revealed that the entire water samples investigated in the present study failed to qualify the prescribed standards for drinking water either in the physico-chemical aspects or in the microbiological aspects or both.Keywords
Water Quality, Groundwater, Surface Water, Drinking Water Standards.- Allelopathic Effects of the Plant Grangia maderaspatena Forsk. on Seed Germination of Three Varieties of Rice
Abstract Views :108 |
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Authors
Affiliations
1 Department of Botany, S. N. College, Nattika-680 566, Distt. Thrissur, Kerala, IN
2 Kerala Agriculture University, Mannuthy, Distt. Thrissur, Kerala, IN
1 Department of Botany, S. N. College, Nattika-680 566, Distt. Thrissur, Kerala, IN
2 Kerala Agriculture University, Mannuthy, Distt. Thrissur, Kerala, IN
Source
Nature Environment and Pollution Technology, Vol 10, No 2 (2011), Pagination: 303-304Abstract
Allelopathy is the direct influence of a chemical released from one plant on the development and growth of another plant. Chemicals with allelopathic potential exist invariably in all plant tissues including leaves, flowers, stems, rhizomes and ischolar_mains. Processes such as volatilization, ischolar_main exudation, leaching and decomposition of plant residues release them into environment. Accumulation of more allelochemicals from weeds in fields causes soil sickness, reduced nitrification and nutrient uptake resulting in loss of crop yield. The present study has been conducted to examine the allelopathic effects of Grangia maderaspatena Frosk. on seed germination of three varieties of rice, i.e., Aiswarya, Kanchana and Harsha.Keywords
Allelopathic Effects, Grangia maderaspatena, Rice Varieties, Seed Germination.- Phytoremediation of Domestic Wastewater by Using a Free Floating Aquatic Angiosperm, Lemna Minor
Abstract Views :163 |
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Authors
Affiliations
1 Department of Botany, Sree Narayana College, Nattika-680 566, Trissur, Kerala, IN
1 Department of Botany, Sree Narayana College, Nattika-680 566, Trissur, Kerala, IN