Macroalgae Decrease Growth and Alter Microbial Community Structure of the Reef-Building Coral, Porites astreoides Public Deposited

http://ir.library.oregonstate.edu/concern/defaults/3f4627019

This is the publisher’s final pdf. The published article is copyrighted by the Public Library of Science and can be found at:  http://www.plosone.org/home.action.

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • With the continued and unprecedented decline of coral reefs worldwide, evaluating the factors that contribute to coral demise is of critical importance. As coral cover declines, macroalgae are becoming more common on tropical reefs. Interactions between these macroalgae and corals may alter the coral microbiome, which is thought to play an important role in colony health and survival. Together, such changes in benthic macroalgae and in the coral microbiome may result in a feedback mechanism that contributes to additional coral cover loss. To determine if macroalgae alter the coral microbiome, we conducted a field-based experiment in which the coral Porites astreoides was placed in competition with five species of macroalgae. Macroalgal contact increased variance in the coral-associated microbial community, and two algal species significantly altered microbial community composition. All macroalgae caused the disappearance of a γ-proteobacterium previously hypothesized to be an important mutualist of P. astreoides. Macroalgal contact also triggered: 1) increases or 2) decreases in microbial taxa already present in corals, 3) establishment of new taxa to the coral microbiome, and 4) vectoring and growth of microbial taxa from the macroalgae to the coral. Furthermore, macroalgal competition decreased coral growth rates by an average of 36.8%. Overall, this study found that competition between corals and certain species of macroalgae leads to an altered coral microbiome, providing a potential mechanism by which macroalgae-coral interactions reduce coral health and lead to coral loss on impacted reefs.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Vega Thurber R, Burkepile DE, Correa AMS, Thurber AR, Shantz AA, et al. (2012) Macroalgae Decrease Growth and Alter Microbial Community Structure of the Reef-Building Coral, Porites astreoides. PLoS ONE 7(9): e44246. doi:10.1371/journal.pone.0044246
Series
Rights Statement
Funding Statement (additional comments about funding)
Publisher
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Made available in DSpace on 2012-11-27T20:04:28Z (GMT). No. of bitstreams: 3 license_rdf: 19965 bytes, checksum: 225316337756db2af069c3edfe03a49f (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) ThurberAndrewCEOASMacroalgaeDecreaseGrowth.pdf: 594066 bytes, checksum: efa885ecaab5446d196b6fd8561da259 (MD5) Previous issue date: 2012-09-05
  • description.provenance : Submitted by Deanne Bruner (deanne.bruner@oregonstate.edu) on 2012-11-27T20:04:28Z No. of bitstreams: 3 license_rdf: 19965 bytes, checksum: 225316337756db2af069c3edfe03a49f (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) ThurberAndrewCEOASMacroalgaeDecreaseGrowth.pdf: 594066 bytes, checksum: efa885ecaab5446d196b6fd8561da259 (MD5)

Relationships

In Administrative Set:
Last modified: 07/22/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items