Antimicrobial potential of two medicinal plants (Psammogeton biternetum and Haloxylon griffithii) of District Kalat Balochistan, Pakistan

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Research Paper 01/07/2019
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Antimicrobial potential of two medicinal plants (Psammogeton biternetum and Haloxylon griffithii) of District Kalat Balochistan, Pakistan

Muhammad Bilal, Saeed-Ur-Rehman, Saadullah Khan Leghari, Kanval Shaukat, Abdul Kabir Khan Achakzai, Muhammad Anwar Khan Panezai, Aziz-Ud-Din, Sana Sadaf
Int. J. Biosci.15( 1), 120-128, July 2019.
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The main objective of this study was to explore the medicinal potential of two important plant species including; Haloxylon griffithii and Psammogeton biternetum.  The Leaf, stem, root and seed (methanolic and ethanolic) extracts of these plant were examined against some pathogenic microbes (fungal and bacterial strains) through agar well diffusion techniques. For anti-bacterial screening 4 gram positive (Enterococcus faecalis, Staphylococcus aureus, Staphylococcus epidermidis and Bacillus subtilis) and 14 gram negative (Acinetobacter baumannii, Escherichia coli, Salmonellla typhi, Proteus sp, Proteus mirabilis, Proteus vulgaris, Pseudomonas aeruginosa, Salmonella paratyphi A, Salmonella enterica, Shigella boydii, Shigella sonnei, Klebsiella oxytoca, Klebsiella pneumoniae and Serratia marcescens) bacterial species were selected. For antifungal activities 5 fungal species (Candida albicans, Aspergillus niger, Penicillin, Aspergillus flavus and Mucor) were chosen for examination. Results revealed that Haloxylon griffithii leaves  was effective against all test species except Bacillus subtilis. Psammogeton biternetum was not active against Bacillus subtilis, Acinetobacter baumannii, Proteus mirabilis, Proteus vulgaris, Salmonella paratyphi A, Salmonella enterica, Shigella boydii, and Shigella sonnei. Psammogeton biternetum exhibited highest antimicrobial activity for Pseudomonas aeruginosa with 37mm ZI (zone of inhibition). Haloxylon griffithii was highly effective against Proteus with 31mm ZI. Furthermore, ethanolic extracts were found to be more effective than methanolic extracts. The extracts were least active against fungal strains. Results revealed that Candida albicans, Aspergillus flavus and Mucor are completely resistant against the selected medicinal plants.


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