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Enhancement of heat tolerance by salt stress in Tetraselmis striata CTP4: impacts on HSP gene expression, pigments, and proximal composition

2024-11-12Journal article Open access
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dc.contributor.authorSantos, Tamara
dc.contributor.authorPereira, Hugo
dc.contributor.authorMaia, Inês Beatriz
dc.contributor.authorJacinto, Rita
dc.contributor.authorBombo, Gabriel
dc.contributor.authorPinheiro, Filipa Maria Ribeiro
dc.contributor.authorBarreira, Luísa
dc.contributor.authorVarela, João
dc.date.accessioned2024-12-04T11:51:03Z
dc.date.available2024-12-04T11:51:03Z
dc.date.issued2024-11-12
dc.description.abstractAs the world average temperature is on the rise and heat waves are becoming more prevalent, microalgal producers have been facing significant challenges regarding the time periods during which they are able to grow less thermotolerant microalgae in outdoor production facilities. Therefore, it is urgent to explore how microalgae cope with thermal stress and under which growth conditions tolerance to temperatures close to or higher than their maximum thermal threshold is induced. For this purpose, Tetraselmis striata CTP4, a euryhaline microalga known for its thermotolerance, was selected. Tetraselmis striata belongs to the Chlorodendrophyceae, a clade that branched off early from other "core chlorophyte" clades, usually comprised of microalgae able to colonise freshwater habitats. Here, we present compelling evidence that the ability of this microalga to withstand otherwise lethal thermal upshifts to 40 degrees C is induced by exposure to higher salinity (35 ppt). In contrast, this response is abrogated at lower salinities. Concomitantly, the expression of genes encoding HSP70 and HSP100, two heat shock proteins known to mediate thermotolerance and tolerance to other stresses (e.g., salt stress) in fungi, animals and plants, was enhanced when exposed to both heat stress and higher salinities. This suggests that cross-protective mechanisms against abiotic stress appeared early during the evolution of the core chlorophytes and of Archaeplastida in general. This knowledge can be used to select novel strains and growth conditions that promote thermotolerance in microalgae that are grown in outdoor industrial production facilities in environments where heat waves are expected.eng
dc.description.sponsorshipALG-01-0247-FEDER-069961
dc.identifier.doi10.1007/s10811-024-03371-2
dc.identifier.eissn1573-5176
dc.identifier.issn0921-8971
dc.identifier.urihttp://hdl.handle.net/10400.1/26392
dc.language.isoeng
dc.peerreviewedyes
dc.publisherSpringer
dc.relationAlgarve Centre for Marine Sciences
dc.relationAlgarve Centre for Marine Sciences
dc.relationCentre for Marine and Environmental Research
dc.relationMicrobiome-mediated improvement of industrial Chlorella biomass production
dc.relationBioremediation of hydroponic production drain water using a microalgae-based circular economy approach for sustainable aquaculture and agriculture products.
dc.relation.ispartofJournal of Applied Phycology
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectChlorophyceae
dc.subjectCross-acclimation
dc.subjectAbiotic stress
dc.subjectThermotolerance
dc.subjectIndustrial production
dc.titleEnhancement of heat tolerance by salt stress in Tetraselmis striata CTP4: impacts on HSP gene expression, pigments, and proximal compositioneng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleCentre for Marine and Environmental Research
oaire.awardTitleMicrobiome-mediated improvement of industrial Chlorella biomass production
oaire.awardTitleBioremediation of hydroponic production drain water using a microalgae-based circular economy approach for sustainable aquaculture and agriculture products.
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04326%2F2020/PT
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oaire.awardURIinfo:eu-repo/grantAgreement/FCT//2021.06332.BD/PT
oaire.citation.titleJournal of Applied Phycology
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameSantos
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person.familyNameMaia
person.familyNameJacinto
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person.givenNameTamara
person.givenNameHugo
person.givenNameInês Beatriz
person.givenNameRita
person.givenNameGabriel
person.givenNameFilipa Maria Ribeiro
person.givenNameLuísa
person.givenNameJoão
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person.identifier.orcid0000-0002-4077-855X
person.identifier.orcid0000-0003-3101-693X
person.identifier.ridE-9360-2015
person.identifier.ridJ-9270-2014
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person.identifier.scopus-author-id54080259900
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