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Antibiosis of Burkholderia ubonensis against Burkholderia pseudomallei, the causative agent for meliodiosis


Marshall, K and Shakya, S and Greenhill, AR and Padilla, G and Baker, A and Warner, JM, Antibiosis of Burkholderia ubonensis against Burkholderia pseudomallei, the causative agent for meliodiosis, Southeast Asian Journal of Tropical Medicine and Public Health, 41, (4) pp. 904-912. ISSN 0125-1562 (2010) [Refereed Article]

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Copyright 2010 Southeast Asian Journal of Tropical Medicine and Public Health

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Melioidosis, caused by Burkholderia pseudomallei, is an enigmatic infectious disease that afflicts individuals in many tropical and developing regions. Treatment is hampered by the organismís innate antibiotic resistance and the diseaseís non-pathognomic presentation. Recently, added attention has been given to this organism due to its classification as a potential biowarfare agent. Therefore, methods of preventing acquisition of infection are needed. We investigated antagonism between Burkholderia spp and B. pseudomallei derived from the same ecological niche in a melioidosis endemic region in Papua New Guinea. Isolates of environmentally derived non-pseudomallei Burkholderia spp (n=16) were screened for antibiosis against 27 B. pseudomallei isolates. Three isolates subsequently identified as B. ubonensis produced specific antagonistic activity against all B. pseudomallei isolates tested. The antagonistic compound in a cell-free state was obtained from a representative producing strain, with subsequent biological characterization revealing a pepsin sensitive peptide moiety consistent with a bacteriocin- like compound. To our knowledge, this is the first report of antagonistic activity demonstrated by near-neighbor Burkholderia against B. pseudomallei. This antagonism may be important in the micro-ecology of B. pseudomallei, and could also have application in the biocontrol of this pathogen.

Item Details

Item Type:Refereed Article
Keywords:Burkholderia pseudomallei, antibiosis, ubonensis, Papua New Guinea
Research Division:Biological Sciences
Research Group:Microbiology
Research Field:Bacteriology
Objective Division:Health
Objective Group:Public health (excl. specific population health)
Objective Field:Public health (excl. specific population health) not elsewhere classified
UTAS Author:Baker, A (Dr Anthony Baker)
ID Code:94948
Year Published:2010
Web of Science® Times Cited:20
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2014-09-22
Last Modified:2014-12-17

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