Coral black band disease microbial communities and genotypic variability of the dominant cyanobacteria (CD1C11)

James Klaus, Ingmar Janse, Bruce W. Fouke

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Reef-building corals are susceptible to black band disease (BBD), an infection characterized by a cyanobacteria-dominated microbial mat that kills coral tissue. BBD mats infecting six scleractinian corals and one gorgonian were studied to assess and identify important microbes involved in the disease. Genotypic variability of dominant BBD cyanobacteria was analyzed at high resolution using cyanobacteriaspecific terminal restriction fragment length polymorphism (TRFLP) analysis of the rRNA internal transcribed spacer (rRNA-ITS) region. Most coral species were dominated by one of two distinct genotypes of the common BBD cyanobacteria CD1C11. The BBD mat infecting the seafan Gorgonia ventalina Linnaeus, 1758 was dominated by different cyanobacteria genotypes (SFDC1 and SFDC2). Clone library sequencing and TRFLP analyses of rRNA genes and reverse-transcribed rRNA reveal the identity and activity of the most abundant BBD microbes. A potential role of these microbes in infection and immunity was studied by comparing the microbial communities of BBD mats to those associated with the healthy tissues of infected and non-infected corals. The dominant cyanobacteria genotype CD1C11 was detected on healthy tissues of several diseased coral species, as well as on healthy colonies showing no outward signs of disease. Other important constituents of the BBD mats included Rhodobacteraceae, Vibrionaceae, and Bacteroidetes. Several isolates were similar to genotypes associated with other coral diseases.

Original languageEnglish (US)
Pages (from-to)795-821
Number of pages27
JournalBulletin of Marine Science
Volume87
Issue number4
DOIs
StatePublished - Oct 2011

Fingerprint

microbial communities
corals
Cyanobacteria
cyanobacterium
microbial community
coral
genotype
ribosomal RNA
microorganisms
restriction fragment length polymorphism
Rhodobacteraceae
Vibrionaceae
DNA libraries
infection
internal transcribed spacers
polymorphism
Antipatharia
reefs
immunity
clones

ASJC Scopus subject areas

  • Aquatic Science
  • Oceanography

Cite this

Coral black band disease microbial communities and genotypic variability of the dominant cyanobacteria (CD1C11). / Klaus, James; Janse, Ingmar; Fouke, Bruce W.

In: Bulletin of Marine Science, Vol. 87, No. 4, 10.2011, p. 795-821.

Research output: Contribution to journalArticle

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