D Ren1, J J Sims, T K Wood. 1. Department of Chemical Engineering and Molecular & Cellular Biology, University of Connecticut, Storrs 06269-3222, USA.
Abstract
AIMS: (5Z)-4-Bromo-5-(bromomethylene)-3-butyl-2(5H)-furanone(furanone) of the marine alga Delisea pulchra was synthesized, and its inhibition of swarming motility and biofilm formation of Bacillus subtilis was investigated. METHODS AND RESULTS: Furanone was found to inhibit both the growth of B. subtilis and its swarming motility in a concentration-dependent way. In addition, as shown by confocal scanning laser microscopy, furanone inhibited the biofilm formation of B. subtilis. At 40 microg ml(-1), furanone decreased the biofilm thickness by 25%, decreased the number of water channels, and reduced the percentage of live cells by 63%. CONCLUSIONS, SIGNIFICANCE AND IMPACT OF THE STUDY: Natural furanone has potential for controlling the multicellular behaviour of Gram-positive bacteria.
AIMS: (5Z)-4-Bromo-5-(bromomethylene)-3-butyl-2(5H)-furanone(furanone) of the marine alga Delisea pulchra was synthesized, and its inhibition of swarming motility and biofilm formation of Bacillus subtilis was investigated. METHODS AND RESULTS:Furanone was found to inhibit both the growth of B. subtilis and its swarming motility in a concentration-dependent way. In addition, as shown by confocal scanning laser microscopy, furanone inhibited the biofilm formation of B. subtilis. At 40 microg ml(-1), furanone decreased the biofilm thickness by 25%, decreased the number of water channels, and reduced the percentage of live cells by 63%. CONCLUSIONS, SIGNIFICANCE AND IMPACT OF THE STUDY: Natural furanone has potential for controlling the multicellular behaviour of Gram-positive bacteria.
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