A distinctive epibiotic bacterial community on the soft coral Dendronephthya sp. and antibacterial activity of coral tissue extracts suggest a chemical mechanism against bacterial epibiosis

Tilmann Harder, Stanley C K Lau, Sergey Dobretsov, Tsz K. Fang, Pei Yuan Qian

Research output: Contribution to journalArticle

101 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)337-347
Number of pages11
JournalFEMS Microbiology Ecology
Volume43
Issue number3
DOIs
Publication statusPublished - Apr 1 2003

Keywords

  • Antimicrobial activity
  • Dendronephthya sp.
  • Epibiosis
  • Marine bacteria
  • Soft coral
  • Terminal restriction fragment length polymorphism

ASJC Scopus subject areas

  • Ecology
  • Applied Microbiology and Biotechnology
  • Microbiology

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