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The South Pacific Journal of Natural and Applied Sciences The South Pacific Journal of Natural and Applied Sciences Society
Research and review papers in the area of science, engineering and mathematics
RESEARCH ARTICLE

The medicinal potential of Australian native plants from Toohey Forest, Australia

F. R. Kalt and I. E. Cock

The South Pacific Journal of Natural and Applied Sciences 28(1) 41 - 47
Published: 10 February 2011

Abstract

Eleven methanolic extracts of ten Australian native plants from Toohey Forest, Brisbane, Australia were investigated for their potential medicinal value as antibacterial agents. All plants showed some antibacterial activity against at least one of the bacteria tested. Alcaligenes faecalis, Aeromonas hydrophilia and Bacillus cereus were the most susceptible bacteria, being inhibited by 9, 9 and 10 of the plant extracts respectively. Davallia pyxidata and Marchantia polymorpha extracts were least effective, inhibiting the growth of only 1 or 2 bacteria respectively. Acrotriche aggregata, Petalostigma pubescens, Leptospermum trinervia and Planchonella queenslandica leaf extracts were particularly effective bacterial agents being capable of inhibiting the growth of 8 (57%), 10 (71%), 9 (64%) and 9 (64%) of the bacteria tested respectively. A. aggregata, P. pubescens and L. trinervia leaf extracts displayed low toxicity in the Artemia franciscana nauplii bioassay, confirming their potential as antibacterial agents for medicinal use.

Keywords: Australian plants, medicinal plants, antibacterial, toxicity, Artemia franciscana.

https://doi.org/10.1071/SP10003

© The University of the South Pacific 2011

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