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Published on:10th sep 2010
Pharmacognosy Journal, 2010; 2(14):19-22
Research Article | doi:Nill

Evaluation of Antibacterial Activity and Phytochemical Screening of Wrightia tinctoria L.

Authors and affiliation (s):

S. Ravi Shankara*, R. Rangarajana , D.V.L. Saradab and C. Sreenath Kumarc

aDepartment of Plant Biology and Plant Biotechnology, Madras Christian College, Chennai – 600 059, India.

bDepartment of Bioinformatics SRM University, Chennai – 600 089, India.

cDepartment of Plant Biology and Biotechnology, Loyola College, Chennai – 600 034, India.


Wrightia tinctoria L. leaf hexane, methanol, chloroform, ethyl acetate and water extracts were screened against plant pathogenic bacteria by in vitro. The extracts were tested using disc diffusion method and minimum inhibitory concentration. Ethyl acetate and methanol extracts showed significant antibacterial activity against gram negative bacteria; the MIC was 50 μg/ml for Xanthomonas campestris and Erwina sp. Study shows Wrightia tinctoria leaves possessed potent antimicrobial properties against plant pathogenic bacteria suggesting that the active principles may be useful in the control of plant disease.


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