Metabolomic signatures of corals thriving across extreme reef habitats reveal strategies of heat stress tolerance.

Haydon, TD; Matthews, JL; Seymour, JR; Raina, J-B; Seymour, JE; Chartrand, K; Camp, EF; Suggett, DJ

Metabolomic signatures of corals thriving across extreme reef habitats reveal strategies of heat stress tolerance.

Haydon, TD Matthews, JL Seymour, JR Raina, J-B Seymour, JE Chartrand, K Camp, EF Suggett, DJ

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Publisher:: ROYAL SOC
Publication Type:: Journal Article
Citation:: Proc Biol Sci, 2023, 290, (1992), pp. 20221877
Issue Date:: 2023-02-08

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Field	Value	Language
dc.contributor.author	Haydon, TD
dc.contributor.author	Matthews, JL
dc.contributor.author	Seymour, JR
dc.contributor.author	Raina, J-B
dc.contributor.author	Seymour, JE
dc.contributor.author	Chartrand, K
dc.contributor.author	Camp, EF
dc.contributor.author	Suggett, DJ
dc.date.accessioned	2024-01-15T05:43:26Z
dc.date.available	2024-01-15T05:43:26Z
dc.date.issued	2023-02-08
dc.identifier.citation	Proc Biol Sci, 2023, 290, (1992), pp. 20221877
dc.identifier.issn	0962-8452
dc.identifier.issn	1471-2954
dc.identifier.uri	http://hdl.handle.net/10453/174477
dc.description.abstract	Anthropogenic stressors continue to escalate worldwide, driving unprecedented declines in reef environmental conditions and coral health. One approach to better understand how corals can function in the future is to examine coral populations that thrive within present day naturally extreme habitats. We applied untargeted metabolomics (gas chromatography-mass spectrometry (GC-MS)) to contrast metabolite profiles of Pocillopora acuta colonies from hot, acidic and deoxygenated mangrove environments versus those from adjacent reefs. Under ambient temperatures, P. acuta predominantly associated with endosymbionts of the genera Cladocopium (reef) or Durusdinium (mangrove), exhibiting elevated metabolism in mangrove through energy-generating and biosynthesis pathways compared to reef populations. Under transient heat stress, P. acuta endosymbiont associations were unchanged. Reef corals bleached and exhibited extensive shifts in symbiont metabolic profiles (whereas host metabolite profiles were unchanged). By contrast, mangrove populations did not bleach and solely the host metabolite profiles were altered, including cellular responses in inter-partner signalling, antioxidant capacity and energy storage. Thus mangrove P. acuta populations resist periodically high-temperature exposure via association with thermally tolerant endosymbionts coupled with host metabolic plasticity. Our findings highlight specific metabolites that may be biomarkers of heat tolerance, providing novel insight into adaptive coral resilience to elevated temperatures.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	ROYAL SOC
dc.relation	http://purl.org/au-research/grants/arc/DP180100838
dc.relation	http://purl.org/au-research/grants/arc/DE190100142
dc.relation	http://purl.org/au-research/grants/arc/DP200100091
dc.relation.ispartof	Proc Biol Sci
dc.relation.isbasedon	10.1098/rspb.2022.1877
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	06 Biological Sciences, 07 Agricultural and Veterinary Sciences, 11 Medical and Health Sciences
dc.subject.classification	30 Agricultural, veterinary and food sciences
dc.subject.classification	31 Biological sciences
dc.subject.classification	41 Environmental sciences
dc.subject.mesh	Animals
dc.subject.mesh	Anthozoa
dc.subject.mesh	Thermotolerance
dc.subject.mesh	Coral Reefs
dc.subject.mesh	Symbiosis
dc.subject.mesh	Heat-Shock Response
dc.subject.mesh	Dinoflagellida
dc.subject.mesh	Animals
dc.subject.mesh	Anthozoa
dc.subject.mesh	Dinoflagellida
dc.subject.mesh	Symbiosis
dc.subject.mesh	Heat-Shock Response
dc.subject.mesh	Coral Reefs
dc.subject.mesh	Thermotolerance
dc.subject.mesh	Animals
dc.subject.mesh	Anthozoa
dc.subject.mesh	Thermotolerance
dc.subject.mesh	Coral Reefs
dc.subject.mesh	Symbiosis
dc.subject.mesh	Heat-Shock Response
dc.subject.mesh	Dinoflagellida
dc.title	Metabolomic signatures of corals thriving across extreme reef habitats reveal strategies of heat stress tolerance.
dc.type	Journal Article
utslib.citation.volume	290
utslib.location.activity	England
utslib.for	06 Biological Sciences
utslib.for	07 Agricultural and Veterinary Sciences
utslib.for	11 Medical and Health Sciences
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/Faculty of Science/School of Life Sciences
utslib.copyright.status	closed_access	*
dc.date.updated	2024-01-15T05:43:25Z
pubs.issue	1992
pubs.publication-status	Published
pubs.volume	290
utslib.citation.issue	1992

Abstract:

Anthropogenic stressors continue to escalate worldwide, driving unprecedented declines in reef environmental conditions and coral health. One approach to better understand how corals can function in the future is to examine coral populations that thrive within present day naturally extreme habitats. We applied untargeted metabolomics (gas chromatography-mass spectrometry (GC-MS)) to contrast metabolite profiles of Pocillopora acuta colonies from hot, acidic and deoxygenated mangrove environments versus those from adjacent reefs. Under ambient temperatures, P. acuta predominantly associated with endosymbionts of the genera Cladocopium (reef) or Durusdinium (mangrove), exhibiting elevated metabolism in mangrove through energy-generating and biosynthesis pathways compared to reef populations. Under transient heat stress, P. acuta endosymbiont associations were unchanged. Reef corals bleached and exhibited extensive shifts in symbiont metabolic profiles (whereas host metabolite profiles were unchanged). By contrast, mangrove populations did not bleach and solely the host metabolite profiles were altered, including cellular responses in inter-partner signalling, antioxidant capacity and energy storage. Thus mangrove P. acuta populations resist periodically high-temperature exposure via association with thermally tolerant endosymbionts coupled with host metabolic plasticity. Our findings highlight specific metabolites that may be biomarkers of heat tolerance, providing novel insight into adaptive coral resilience to elevated temperatures.

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http://hdl.handle.net/10453/174477