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Research Journal of Medicinal Plants
  Year: 2011 | Volume: 5 | Issue: 5 | Page No.: 613-620
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Bioactivity of Hemidesmus indicus (L.) on Human Pathogenic Bacteria and Culex qinquifasciatus (Diptera: Culicidae)

Baby Joseph, S. Sujatha and J.R. Anusha

The aim of this study was to identify the antibacterial and mosquito larvicidal activity of the Hemidesmus indicus (Linn.) root extract with five diferent solvents. The present study was undertaken to evaluate the effect of extraction from Hemidesmus indicus roots on five different solvents activity against the pathogenic and non-pathogenic organisms also larvae of the Culex qinquifasciatus mosquito. H. indicus (L.) is one of the plants used in Ayurveda for several remedies it belongs to the family Asclepiadaceae. The experimental roots were tested for their phytochemical constituents and antimicrobial activity against twelve human pathogenic bacteria microorganisms using standard disc diffusion method. Moreover, the methanol and petroleum ether extracts were active against most of the tested organisms as they showed potential phytochemical constituents. The antimicrobial activities of the extracts were compared with their respective reference antibiotics as Minimum Inhibitory Concentrations (MICs). Apart from petroleum ether, all other solvent extracts such as ethanol, methanol, chloroform and aqueous extract showed significant results. Among the 12 bacterial species maximum inhibition zone was 16.00±0.18, 10.65±0.19 and 16.3±0.20 observed the following bacteria such as E. coli, P. mirabilis and S. typhimurium respectively. The larvicidal effect of aqueous extracts of H. indicus roots were tested against Culex quinquefasciatus larvae at the concentrations of 1, 2, 3, 4 and 5% up to three days also after two days, 100% larval mortality has been observed at 5% concentration of root extract with aqueous solution (dist.water). From this results clearly showed solvent extracts of H. indicus (Linn.) root could be act as an antibacterial as well as larvicidal activity.
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  •    Studies of Larvicidal and Adulticidal Activities of Some Halophyte Plant Extracts Against Ceratitis capitata (Wiedemann)
  •    Toxicity of Benzaldehyde and Propionic Acid against Immature and Adult Stages of Aedes aegypti (Linn.) and Culex quinquefasciatus (Say) (Diptera: Culicidae)
  •    A Review on the Recent Advances in Pharmacological Studies on Medicinal Plants; Animal Studies are Done but Clinical Studies Needs Completing
  •    Antimicrobial Activity and Ethnomedicinal Uses of Some Medicinal Plants from Similipal Biosphere Reserve, Orissa
  •    Bioactive Compounds and its Autochthonous Microbial Activities of Extract and Clove Oil (Syzygium aromaticum L.) on Some Food Borne Pathogens
  •    Antibacterial Effects of Iranian Mentha pulegium Essential Oil on Isolates of Klebsiella sp.
  •    Antimicrobial Activity of Saponin Fraction from the Roots of Hemidesmus indicus
How to cite this article:

Baby Joseph, S. Sujatha and J.R. Anusha, 2011. Bioactivity of Hemidesmus indicus (L.) on Human Pathogenic Bacteria and Culex qinquifasciatus (Diptera: Culicidae). Research Journal of Medicinal Plants, 5: 613-620.




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