Age-Related Shifts in Bacterial Diversity in a Reef Coral.

This study investigated the relationship between microbial communities in differently sized colonies of the massive coral Coelastrea aspera at Phuket, Thailand where colony size could be used as a proxy for age. Results indicated significant differences between the bacterial diversity (ANOSIM, R = 0...

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Main Authors: Alex D Williams, Barbara E Brown, Lalita Putchim, Michael J Sweet
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2015-01-01
Series:PLoS ONE
Online Access:https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0144902&type=printable
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author Alex D Williams
Barbara E Brown
Lalita Putchim
Michael J Sweet
author_facet Alex D Williams
Barbara E Brown
Lalita Putchim
Michael J Sweet
author_sort Alex D Williams
collection DOAJ
description This study investigated the relationship between microbial communities in differently sized colonies of the massive coral Coelastrea aspera at Phuket, Thailand where colony size could be used as a proxy for age. Results indicated significant differences between the bacterial diversity (ANOSIM, R = 0.76, p = 0.001) of differently sized colonies from the same intertidal reef habitat. Juvenile and small colonies (< 6 cm mean diam) harboured a lower bacterial richness than medium (~ 10 cm mean diam) and large colonies (> 28 cm mean diam). Bacterial diversity increased in a step-wise pattern from juveniles < small < medium colonies, which was then followed by a slight decrease in the two largest size classes. These changes appear to resemble a successional process which occurs over time, similar to that observed in the ageing human gut. Furthermore, the dominant bacterial ribotypes present in the tissues of medium and large sized colonies of C. aspera, (such as Halomicronema, an Oscillospira and an unidentified cyanobacterium) were also the dominant ribotypes found within the endolithic algal band of the coral skeleton; a result providing some support for the hypothesis that the endolithic algae of corals may directly influence the bacterial community present in coral tissues.
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spelling doaj.art-7584e1666031493aa4cc8e191e4769dd2025-02-25T05:32:01ZengPublic Library of Science (PLoS)PLoS ONE1932-62032015-01-011012e014490210.1371/journal.pone.0144902Age-Related Shifts in Bacterial Diversity in a Reef Coral.Alex D WilliamsBarbara E BrownLalita PutchimMichael J SweetThis study investigated the relationship between microbial communities in differently sized colonies of the massive coral Coelastrea aspera at Phuket, Thailand where colony size could be used as a proxy for age. Results indicated significant differences between the bacterial diversity (ANOSIM, R = 0.76, p = 0.001) of differently sized colonies from the same intertidal reef habitat. Juvenile and small colonies (< 6 cm mean diam) harboured a lower bacterial richness than medium (~ 10 cm mean diam) and large colonies (> 28 cm mean diam). Bacterial diversity increased in a step-wise pattern from juveniles < small < medium colonies, which was then followed by a slight decrease in the two largest size classes. These changes appear to resemble a successional process which occurs over time, similar to that observed in the ageing human gut. Furthermore, the dominant bacterial ribotypes present in the tissues of medium and large sized colonies of C. aspera, (such as Halomicronema, an Oscillospira and an unidentified cyanobacterium) were also the dominant ribotypes found within the endolithic algal band of the coral skeleton; a result providing some support for the hypothesis that the endolithic algae of corals may directly influence the bacterial community present in coral tissues.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0144902&type=printable
spellingShingle Alex D Williams
Barbara E Brown
Lalita Putchim
Michael J Sweet
Age-Related Shifts in Bacterial Diversity in a Reef Coral.
PLoS ONE
title Age-Related Shifts in Bacterial Diversity in a Reef Coral.
title_full Age-Related Shifts in Bacterial Diversity in a Reef Coral.
title_fullStr Age-Related Shifts in Bacterial Diversity in a Reef Coral.
title_full_unstemmed Age-Related Shifts in Bacterial Diversity in a Reef Coral.
title_short Age-Related Shifts in Bacterial Diversity in a Reef Coral.
title_sort age related shifts in bacterial diversity in a reef coral
url https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0144902&type=printable
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