VARIABLE RESPONSE OF THREE MORPHOTYPES OF TECOMELLA UNDULATA (SM.) SEEM TOWARDS HUMAN PATHOGENIC BACTERIA
Journal Title: International Journal of Pharmacy and Pharmaceutical Sciences - Year 2014, Vol 6, Issue 9
Abstract
Objective: Medicinal Tree Tecomella undulata [Sm.] Seem belonging to family Bignoniaceae has three distinct morphotypes. Present study was undertaken to assess antimicrobial potential of the three morphotypes of Tecomella undulata against human pathogenic bacteria to select suitable morphotype for medicinal use.Methods: Disc diffusion method was used to test and compare the antimicrobial activity exhibited by 13 populations belonging to three morphotypes of this tree against five human pathogenic bacteria i. e. Bacillus subtilis, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa and Staphylococcus aureus.Results: Methanol and acetone extract of bark of the tree showed considerable activity against all the five bacteria tested. Differences were observed in the activity not only between the morphotypes but also within the morphotypes against the bacteria tested. Out of the three morpho types yellow morphotypes showed the highest antimicrobial action against all the five bacteria which were comparable to standard antibiotic Chloramphenicol. The trend in antibacterial activity observed was yellow>red>orange in acetone extract and yellow>orange>red in methanol extract towards all microbes except against bacillus bacteria where it was yellow>orange>red [acetone] and orange>yellow>red [methanol].Conclusion: The experimental results of the present study revealed that Tecomella undulata plants show great intraspecific variability in their antibacterial potential. Hence there is need to evaluate germplasm to select superior genotype for medicinal, multiplication, conservation or plantation purpose.Â
Authors and Affiliations
Navdeep Kaur, Mis Saggoo, Arneet Gill
Keywords
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