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Antimicrobial activity of surface attached marine bacteria in biofilms

Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.14/113538

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Title: Antimicrobial activity of surface attached marine bacteria in biofilms
Related: Microbiological research, 25 September 2010, (2010),
DOI: 10.1016/j.micres.2010.08.003
Publisher: Elsevier
Date: 2010
FoR/RFCD Code(s): 060500 Microbiology 110800 Medical Microbiology
Author/Creator: Wilson, George S
Author/Creator: Raftos, David A
Author/Creator: Nair, Sham V
Description: Available online 25 September 2010. Relatively little is known about the microbial ecology of biofilm communities or the diversity of antimicrobial molecules that they produce to regulate these communities. This study tested whether the production of antimicrobial activity in biofilm cultures is enhanced towards competing bacteria found in those biofilms. First, the production of antimicrobial activity of marine bacteria grown in biofilms was tested. Fourteen of the 105 marine isolates tested were found to produce antimicrobial factors when grown in biofilms. The antimicrobial activity produced by these isolates in biofilms was more potent and inhibited a broader range of target bacteria grown in biofilms compared to shaken liquid cultures. In a separate experiment, we found that cultivation in biofilms containing produced metabolites from an ‘inducer’ bacterium stimulated the production of antimicrobial molecules by ‘producer’ bacteria that were active against the ‘inducer’ bacterium. Overall, the study suggests that surface attached marine bacteria can target their antimicrobial activity towards competing bacteria in biofilms.
Description: 12 page(s)
Subject Keyword: 060500 Microbiology
Subject Keyword: 110800 Medical Microbiology
Subject Keyword: marine bacteria
Subject Keyword: biofilmnext term
Subject Keyword: induce
Subject Keyword: previous termAntimicrobial activitynext term
Resource Type: journal article
Organisation: Macquarie University. Dept. of Biological Sciences

Identifier: http://hdl.handle.net/1959.14/113538
Identifier: ISSN:0232-4393
Identifier: mq-rm-2009011642
Language: eng
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