Coral endosymbiont growth is enhanced by metabolic interactions with bacteria.

Matthews, JL; Khalil, A; Siboni, N; Bougoure, J; Guagliardo, P; Kuzhiumparambil, U; DeMaere, M; Le Reun, NM; Seymour, JR; Suggett, DJ; Raina, J-B

Coral endosymbiont growth is enhanced by metabolic interactions with bacteria.

Matthews, JL Khalil, A Siboni, N

Bougoure, J Guagliardo, P Kuzhiumparambil, U DeMaere, M

Le Reun, NM Seymour, JR Suggett, DJ Raina, J-B

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Publisher:: Springer Nature
Publication Type:: Journal Article
Citation:: Nat Commun, 2023, 14, (1), pp. 6864
Issue Date:: 2023-10-27

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Field	Value	Language
dc.contributor.author	Matthews, JL
dc.contributor.author	Khalil, A
dc.contributor.author	Siboni, N https://orcid.org/0000-0001-6082-0949
dc.contributor.author	Bougoure, J
dc.contributor.author	Guagliardo, P
dc.contributor.author	Kuzhiumparambil, U
dc.contributor.author	DeMaere, M https://orcid.org/0000-0002-7601-5108
dc.contributor.author	Le Reun, NM
dc.contributor.author	Seymour, JR
dc.contributor.author	Suggett, DJ
dc.contributor.author	Raina, J-B
dc.date.accessioned	2023-11-09T01:43:53Z
dc.date.available	2023-10-18
dc.date.available	2023-11-09T01:43:53Z
dc.date.issued	2023-10-27
dc.identifier.citation	Nat Commun, 2023, 14, (1), pp. 6864
dc.identifier.issn	2041-1723
dc.identifier.issn	2041-1723
dc.identifier.uri	http://hdl.handle.net/10453/173256
dc.description.abstract	Bacteria are key contributors to microalgae resource acquisition, competitive performance, and functional diversity, but their potential metabolic interactions with coral microalgal endosymbionts (Symbiodiniaceae) have been largely overlooked. Here, we show that altering the bacterial composition of two widespread Symbiodiniaceae species, during their free-living stage, results in a significant shift in their cellular metabolism. Indeed, the abundance of monosaccharides and the key phytohormone indole-3-acetic acid (IAA) were correlated with the presence of specific bacteria, including members of the Labrenzia (Roseibium) and Marinobacter genera. Single-cell stable isotope tracking revealed that these two bacterial genera are involved in reciprocal exchanges of carbon and nitrogen with Symbiodiniaceae. We identified the provision of IAA by Labrenzia and Marinobacter, and this metabolite caused a significant growth enhancement of Symbiodiniaceae. By unravelling these interkingdom interactions, our work demonstrates how specific bacterial associates fundamentally govern Symbiodiniaceae fitness.
dc.format	Electronic
dc.language	eng
dc.publisher	Springer Nature
dc.relation	http://purl.org/au-research/grants/arc/DP180100074
dc.relation	http://purl.org/au-research/grants/arc/DP180100838
dc.relation	http://purl.org/au-research/grants/arc/DP200100091
dc.relation	http://purl.org/au-research/grants/arc/FT210100100
dc.relation.ispartof	Nat Commun
dc.relation.isbasedon	10.1038/s41467-023-42663-y
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.subject.mesh	Animals
dc.subject.mesh	Anthozoa
dc.subject.mesh	Dinoflagellida
dc.subject.mesh	Rhodobacteraceae
dc.subject.mesh	Plant Growth Regulators
dc.subject.mesh	Symbiosis
dc.subject.mesh	Coral Reefs
dc.title	Coral endosymbiont growth is enhanced by metabolic interactions with bacteria.
dc.type	Journal Article
utslib.citation.volume	14
utslib.location.activity	England
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Strength - C3 - Climate Change Cluster
pubs.organisational-group	/University of Technology Sydney/Strength - AIMI - Australian Institute for Microbiology & Infection
utslib.copyright.status	open_access	*
dc.date.updated	2023-11-09T01:43:52Z
pubs.issue	1
pubs.publication-status	Published online
pubs.volume	14
utslib.citation.issue	1

Abstract:

Bacteria are key contributors to microalgae resource acquisition, competitive performance, and functional diversity, but their potential metabolic interactions with coral microalgal endosymbionts (Symbiodiniaceae) have been largely overlooked. Here, we show that altering the bacterial composition of two widespread Symbiodiniaceae species, during their free-living stage, results in a significant shift in their cellular metabolism. Indeed, the abundance of monosaccharides and the key phytohormone indole-3-acetic acid (IAA) were correlated with the presence of specific bacteria, including members of the Labrenzia (Roseibium) and Marinobacter genera. Single-cell stable isotope tracking revealed that these two bacterial genera are involved in reciprocal exchanges of carbon and nitrogen with Symbiodiniaceae. We identified the provision of IAA by Labrenzia and Marinobacter, and this metabolite caused a significant growth enhancement of Symbiodiniaceae. By unravelling these interkingdom interactions, our work demonstrates how specific bacterial associates fundamentally govern Symbiodiniaceae fitness.

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http://hdl.handle.net/10453/173256