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Diversity of bacteria populations associated with different thallus regions of the brown alga Laminaria digitata

Stipitate kelp species such as Laminaria digitata dominate most cold-water subtidal rocky shores and form underwater forests which are among the most productive coastal systems worldwide. Laminaria also sustains rich bacterial communities which offer a variety of biotechnological applications. Howev...

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Autores principales: Ihua, Maureen W., FitzGerald, Jamie A., Guihéneuf, Freddy, Jackson, Stephen A., Claesson, Marcus J., Stengel, Dagmar B., Dobson, Alan D. W.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7688147/
https://www.ncbi.nlm.nih.gov/pubmed/33237941
http://dx.doi.org/10.1371/journal.pone.0242675
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author Ihua, Maureen W.
FitzGerald, Jamie A.
Guihéneuf, Freddy
Jackson, Stephen A.
Claesson, Marcus J.
Stengel, Dagmar B.
Dobson, Alan D. W.
author_facet Ihua, Maureen W.
FitzGerald, Jamie A.
Guihéneuf, Freddy
Jackson, Stephen A.
Claesson, Marcus J.
Stengel, Dagmar B.
Dobson, Alan D. W.
author_sort Ihua, Maureen W.
collection PubMed
description Stipitate kelp species such as Laminaria digitata dominate most cold-water subtidal rocky shores and form underwater forests which are among the most productive coastal systems worldwide. Laminaria also sustains rich bacterial communities which offer a variety of biotechnological applications. However, to date, in-depth studies on the diversity and uniqueness of bacterial communities associated with this macroalgal species, their ecological role and their interactions with the alga are under-represented. To address this, the epibacterial populations associated with different thallus regions (holdfast, stipe, meristem, blade) of this brown seaweed were investigated using high-throughput Illumina sequencing of the 16S rRNA genes. The results show that epibacterial communities of the brown seaweed are significantly different and specific to the thallus region, with the shared bacterial population comprising of only 1.1% of the total amplicon sequence variants. The diverse holdfast and blade tissues formed distinct clusters while the meristem and stipe regions are more closely related. The data obtained further supports the hypothesis that macroalgal bacterial communities are shaped by morphological niches and display specificity.
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spelling pubmed-76881472020-12-05 Diversity of bacteria populations associated with different thallus regions of the brown alga Laminaria digitata Ihua, Maureen W. FitzGerald, Jamie A. Guihéneuf, Freddy Jackson, Stephen A. Claesson, Marcus J. Stengel, Dagmar B. Dobson, Alan D. W. PLoS One Research Article Stipitate kelp species such as Laminaria digitata dominate most cold-water subtidal rocky shores and form underwater forests which are among the most productive coastal systems worldwide. Laminaria also sustains rich bacterial communities which offer a variety of biotechnological applications. However, to date, in-depth studies on the diversity and uniqueness of bacterial communities associated with this macroalgal species, their ecological role and their interactions with the alga are under-represented. To address this, the epibacterial populations associated with different thallus regions (holdfast, stipe, meristem, blade) of this brown seaweed were investigated using high-throughput Illumina sequencing of the 16S rRNA genes. The results show that epibacterial communities of the brown seaweed are significantly different and specific to the thallus region, with the shared bacterial population comprising of only 1.1% of the total amplicon sequence variants. The diverse holdfast and blade tissues formed distinct clusters while the meristem and stipe regions are more closely related. The data obtained further supports the hypothesis that macroalgal bacterial communities are shaped by morphological niches and display specificity. Public Library of Science 2020-11-25 /pmc/articles/PMC7688147/ /pubmed/33237941 http://dx.doi.org/10.1371/journal.pone.0242675 Text en © 2020 Ihua et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Ihua, Maureen W.
FitzGerald, Jamie A.
Guihéneuf, Freddy
Jackson, Stephen A.
Claesson, Marcus J.
Stengel, Dagmar B.
Dobson, Alan D. W.
Diversity of bacteria populations associated with different thallus regions of the brown alga Laminaria digitata
title Diversity of bacteria populations associated with different thallus regions of the brown alga Laminaria digitata
title_full Diversity of bacteria populations associated with different thallus regions of the brown alga Laminaria digitata
title_fullStr Diversity of bacteria populations associated with different thallus regions of the brown alga Laminaria digitata
title_full_unstemmed Diversity of bacteria populations associated with different thallus regions of the brown alga Laminaria digitata
title_short Diversity of bacteria populations associated with different thallus regions of the brown alga Laminaria digitata
title_sort diversity of bacteria populations associated with different thallus regions of the brown alga laminaria digitata
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7688147/
https://www.ncbi.nlm.nih.gov/pubmed/33237941
http://dx.doi.org/10.1371/journal.pone.0242675
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