Inter-domain microbial diversity within the coral holobiont Siderastrea siderea from two depth habitats

Corals host diverse microbial communities that are involved in acclimatization, pathogen defense, and nutrient cycling. Surveys of coral-associated microbes have been particularly directed toward Symbiodinium and bacteria. However, a holistic understanding of the total microbiome has been hindered b...

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Main Authors: Guido Bonthond, Daniel G. Merselis, Katherine E. Dougan, Trevor Graff, William Todd, James W. Fourqurean, Mauricio Rodriguez-Lanetty
Format: Article
Language:English
Published: PeerJ Inc. 2018-02-01
Series:PeerJ
Subjects:
Online Access:https://peerj.com/articles/4323.pdf
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author Guido Bonthond
Daniel G. Merselis
Katherine E. Dougan
Trevor Graff
William Todd
James W. Fourqurean
Mauricio Rodriguez-Lanetty
author_facet Guido Bonthond
Daniel G. Merselis
Katherine E. Dougan
Trevor Graff
William Todd
James W. Fourqurean
Mauricio Rodriguez-Lanetty
author_sort Guido Bonthond
collection DOAJ
description Corals host diverse microbial communities that are involved in acclimatization, pathogen defense, and nutrient cycling. Surveys of coral-associated microbes have been particularly directed toward Symbiodinium and bacteria. However, a holistic understanding of the total microbiome has been hindered by a lack of analyses bridging taxonomically disparate groups. Using high-throughput amplicon sequencing, we simultaneously characterized the Symbiodinium, bacterial, and fungal communities associated with the Caribbean coral Siderastrea siderea collected from two depths (17 and 27 m) on Conch reef in the Florida Keys. S. siderea hosted an exceptionally diverse Symbiodinium community, structured differently between sampled depth habitats. While dominated at 27 m by a Symbiodinium belonging to clade C, at 17 m S. siderea primarily hosted a mixture of clade B types. Most fungal operational taxonomic units were distantly related to available reference sequences, indicating the presence of a high degree of fungal novelty within the S. siderea holobiont and a lack of knowledge on the diversity of fungi on coral reefs. Network analysis showed that co-occurrence patterns in the S. siderea holobiont were prevalent among bacteria, however, also detected between fungi and bacteria. Overall, our data show a drastic shift in the associated Symbiodinium community between depths on Conch Reef, which might indicate that alteration in this community is an important mechanism facilitating local physiological adaptation of the S. siderea holobiont. In contrast, bacterial and fungal communities were not structured differently between depth habitats.
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spelling doaj.art-3b2daba18cbf4450b9c2f142edb1a2412023-12-03T10:04:56ZengPeerJ Inc.PeerJ2167-83592018-02-016e432310.7717/peerj.4323Inter-domain microbial diversity within the coral holobiont Siderastrea siderea from two depth habitatsGuido Bonthond0Daniel G. Merselis1Katherine E. Dougan2Trevor Graff3William Todd4James W. Fourqurean5Mauricio Rodriguez-Lanetty6Department of Biological Sciences, Florida International University, Miami, FL, USADepartment of Biological Sciences, Florida International University, Miami, FL, USADepartment of Biological Sciences, Florida International University, Miami, FL, USANASA Johnson Space Center, Houston, TX, USANASA Johnson Space Center, Houston, TX, USADepartment of Biological Sciences, Florida International University, Miami, FL, USADepartment of Biological Sciences, Florida International University, Miami, FL, USACorals host diverse microbial communities that are involved in acclimatization, pathogen defense, and nutrient cycling. Surveys of coral-associated microbes have been particularly directed toward Symbiodinium and bacteria. However, a holistic understanding of the total microbiome has been hindered by a lack of analyses bridging taxonomically disparate groups. Using high-throughput amplicon sequencing, we simultaneously characterized the Symbiodinium, bacterial, and fungal communities associated with the Caribbean coral Siderastrea siderea collected from two depths (17 and 27 m) on Conch reef in the Florida Keys. S. siderea hosted an exceptionally diverse Symbiodinium community, structured differently between sampled depth habitats. While dominated at 27 m by a Symbiodinium belonging to clade C, at 17 m S. siderea primarily hosted a mixture of clade B types. Most fungal operational taxonomic units were distantly related to available reference sequences, indicating the presence of a high degree of fungal novelty within the S. siderea holobiont and a lack of knowledge on the diversity of fungi on coral reefs. Network analysis showed that co-occurrence patterns in the S. siderea holobiont were prevalent among bacteria, however, also detected between fungi and bacteria. Overall, our data show a drastic shift in the associated Symbiodinium community between depths on Conch Reef, which might indicate that alteration in this community is an important mechanism facilitating local physiological adaptation of the S. siderea holobiont. In contrast, bacterial and fungal communities were not structured differently between depth habitats.https://peerj.com/articles/4323.pdfSymbiosisCoralFungiMicrobial communityCoral-associated microbiomeSymbiodinium
spellingShingle Guido Bonthond
Daniel G. Merselis
Katherine E. Dougan
Trevor Graff
William Todd
James W. Fourqurean
Mauricio Rodriguez-Lanetty
Inter-domain microbial diversity within the coral holobiont Siderastrea siderea from two depth habitats
PeerJ
Symbiosis
Coral
Fungi
Microbial community
Coral-associated microbiome
Symbiodinium
title Inter-domain microbial diversity within the coral holobiont Siderastrea siderea from two depth habitats
title_full Inter-domain microbial diversity within the coral holobiont Siderastrea siderea from two depth habitats
title_fullStr Inter-domain microbial diversity within the coral holobiont Siderastrea siderea from two depth habitats
title_full_unstemmed Inter-domain microbial diversity within the coral holobiont Siderastrea siderea from two depth habitats
title_short Inter-domain microbial diversity within the coral holobiont Siderastrea siderea from two depth habitats
title_sort inter domain microbial diversity within the coral holobiont siderastrea siderea from two depth habitats
topic Symbiosis
Coral
Fungi
Microbial community
Coral-associated microbiome
Symbiodinium
url https://peerj.com/articles/4323.pdf
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