Journal
FEMS MICROBIOLOGY ECOLOGY
Volume 43, Issue 3, Pages 337-347Publisher
ELSEVIER SCIENCE BV
DOI: 10.1111/j.1574-6941.2003.tb01074.x
Keywords
marine bacteria; soft coral; Dendronephthya sp.; epibiosis; terminal restriction fragment length polymorphism; antimicrobial activity
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Different bacterial community profiles were observed on the soft coral Dendronephthya sp. and an inanimate reference site using terminal restriction fragment length polymorphism analysis of bacterial community DNA. To correlate the observation with a chemical defense mechanism against bacterial epibiosis, antibacterial effects of coral tissue extracts and waterborne products of coral-associated bacterial isolates (11 morphotypes) were tested against indigenous benthic bacterial isolates (33 morphotypes) obtained in the vicinity of the coral colonies. The coral tissue extracts and waterborne products of coral-associated bacteria inhibited growth and attachment of indigenous bacterial isolates, suggesting an endogenous chemical and an exogenous biological mechanism against bacterial epibiosis in this soft coral. (C) 2002 Federation of European Microbiological Societies. Published by Elsevier Science B.V. All rights reserved.
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