Inhibitory effects of secondary metabolites from the red alga Delisea pulchra on swarming motility of Proteus mirabilis

Lone Gram, R. de Nys, R. Maximilien, Michael Christian Givskov, P. Steinberg, S. Kjelleberg

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Abnormal, uncoordinated swarming motility of the opportunistic human pathogen Proteus mirabilis was seen when a crude extract of the Australian red alga Delisea pulchra was added to the medium, This occurred at concentrations at which growth rate, swimming motility, cell elongation, polynucleation, and hyperflagellation were not affected. One halogenated furanone from D. pulchra inhibited swarming motility at concentrations that did not affect growth rate and swimming motility. Other structurally similar D. pulchra furanones had no effect on swarming, suggesting considerable specificity in the effects of furanones on swarming motility by P. mirabilis
Original languageEnglish
JournalApplied and Environmental Microbiology
Volume62
Issue number11
Pages (from-to)4284-4287
ISSN0099-2240
Publication statusPublished - 1996

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