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Functional Roles of the Seagrass (Zostera marina) Holobiont Change with Plant Development

SAM GORVEL, Bettina Walter, Joe D. Taylor Orcid Logo, Richard Unsworth Orcid Logo

Plants, Volume: 14, Issue: 11, Pages: 1584 - 1584

Swansea University Authors: SAM GORVEL, Bettina Walter, Richard Unsworth Orcid Logo

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DOI (Published version): 10.3390/plants14111584

Abstract

Seagrass meadows play a critical role in biogeochemical cycling, especially in nitrogen and sulphur processes, driven by their associated microbiome. This study provides a novel functional analysis of microbial communities in seagrass (Zostera marina) rhizosphere and endosphere, comparing seedlings...

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Published in: Plants
ISSN: 2223-7747
Published: MDPI AG 2025
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URI: https://cronfa.swan.ac.uk/Record/cronfa69612
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last_indexed 2025-06-03T04:47:28Z
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spelling 2025-06-02T12:22:11.3449197 v2 69612 2025-06-02 Functional Roles of the Seagrass (Zostera marina) Holobiont Change with Plant Development f411b38af2fd23bdf80d35687aae4910 SAM GORVEL SAM GORVEL true false 37746814f4da6ac85190cdb662c8844c Bettina Walter Bettina Walter true false b0f33acd13a3ab541cf2aaea27f4fc2f 0000-0003-0036-9724 Richard Unsworth Richard Unsworth true false 2025-06-02 Seagrass meadows play a critical role in biogeochemical cycling, especially in nitrogen and sulphur processes, driven by their associated microbiome. This study provides a novel functional analysis of microbial communities in seagrass (Zostera marina) rhizosphere and endosphere, comparing seedlings and mature plants. While nitrogen-fixing bacteria are more abundant in seedlings, mature plants exhibit greater microbial diversity and stability. Sediment samples show higher microbial diversity than roots, suggesting distinct niche environments in seagrass roots. Key microbial taxa (sulphur-oxidizing and nitrogen-cycling bacteria) were observed across developmental stages, with rapid establishment in seedlings aiding survival in sulphide-rich, anoxic sediments. Chromatiales, which oxidize sulphur, are hypothesized to support juvenile plant growth by mitigating sulphide toxicity, a key stressor in early development. Additionally, sulfate-reducing bacteria (SRB), though potentially harmful due to H2S production, may also aid in nitrogen fixation by producing ammonium. The study underscores the dynamic relationship between seagrass and its microbiome, especially the differences in microbial community structure and function between juvenile and mature plants. The study emphasizes the need for a deeper understanding of microbial roles within the seagrass holobiont to aid with Blue Carbon stores and to improve restoration success, particularly for juvenile plants struggling to establish effective microbiomes. Journal Article Plants 14 11 1584 1584 MDPI AG 2223-7747 eelgrass; microbiome; restoration; marine; microbial 23 5 2025 2025-05-23 10.3390/plants14111584 COLLEGE NANME COLLEGE CODE Swansea University Other This research received no external funding. 2025-06-02T12:22:11.3449197 2025-06-02T12:13:49.8583938 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences SAM GORVEL 1 Bettina Walter 2 Joe D. Taylor 0000-0003-0095-0869 3 Richard Unsworth 0000-0003-0036-9724 4 69612__34373__5fede2778d0b4db9b7aa22b7b9833571.pdf 69612.VoR.pdf 2025-06-02T12:19:09.4673147 Output 2223559 application/pdf Version of Record true © 2025 by the authors. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license. true eng https://creativecommons.org/licenses/by/4.0/
title Functional Roles of the Seagrass (Zostera marina) Holobiont Change with Plant Development
spellingShingle Functional Roles of the Seagrass (Zostera marina) Holobiont Change with Plant Development
SAM GORVEL
Bettina Walter
Richard Unsworth
title_short Functional Roles of the Seagrass (Zostera marina) Holobiont Change with Plant Development
title_full Functional Roles of the Seagrass (Zostera marina) Holobiont Change with Plant Development
title_fullStr Functional Roles of the Seagrass (Zostera marina) Holobiont Change with Plant Development
title_full_unstemmed Functional Roles of the Seagrass (Zostera marina) Holobiont Change with Plant Development
title_sort Functional Roles of the Seagrass (Zostera marina) Holobiont Change with Plant Development
author_id_str_mv f411b38af2fd23bdf80d35687aae4910
37746814f4da6ac85190cdb662c8844c
b0f33acd13a3ab541cf2aaea27f4fc2f
author_id_fullname_str_mv f411b38af2fd23bdf80d35687aae4910_***_SAM GORVEL
37746814f4da6ac85190cdb662c8844c_***_Bettina Walter
b0f33acd13a3ab541cf2aaea27f4fc2f_***_Richard Unsworth
author SAM GORVEL
Bettina Walter
Richard Unsworth
author2 SAM GORVEL
Bettina Walter
Joe D. Taylor
Richard Unsworth
format Journal article
container_title Plants
container_volume 14
container_issue 11
container_start_page 1584
publishDate 2025
institution Swansea University
issn 2223-7747
doi_str_mv 10.3390/plants14111584
publisher MDPI AG
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Biosciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Biosciences
document_store_str 1
active_str 0
description Seagrass meadows play a critical role in biogeochemical cycling, especially in nitrogen and sulphur processes, driven by their associated microbiome. This study provides a novel functional analysis of microbial communities in seagrass (Zostera marina) rhizosphere and endosphere, comparing seedlings and mature plants. While nitrogen-fixing bacteria are more abundant in seedlings, mature plants exhibit greater microbial diversity and stability. Sediment samples show higher microbial diversity than roots, suggesting distinct niche environments in seagrass roots. Key microbial taxa (sulphur-oxidizing and nitrogen-cycling bacteria) were observed across developmental stages, with rapid establishment in seedlings aiding survival in sulphide-rich, anoxic sediments. Chromatiales, which oxidize sulphur, are hypothesized to support juvenile plant growth by mitigating sulphide toxicity, a key stressor in early development. Additionally, sulfate-reducing bacteria (SRB), though potentially harmful due to H2S production, may also aid in nitrogen fixation by producing ammonium. The study underscores the dynamic relationship between seagrass and its microbiome, especially the differences in microbial community structure and function between juvenile and mature plants. The study emphasizes the need for a deeper understanding of microbial roles within the seagrass holobiont to aid with Blue Carbon stores and to improve restoration success, particularly for juvenile plants struggling to establish effective microbiomes.
published_date 2025-05-23T05:28:39Z
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