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Ocean warming increases the nitrogen demand and the uptake of organic nitrogen of the globally distributed seagrass Zostera marina

2020-04-25Journal article Restricted access
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dc.contributor.authorAlexandre, Ana
dc.contributor.authorQuintã, Raquel
dc.contributor.authorHill, Paul W.
dc.contributor.authorJones, Davey L.
dc.contributor.authorSantos, Rui
dc.date.accessioned2020-07-23T09:27:11Z
dc.date.available2020-07-23T09:27:11Z
dc.date.issued2020-04-25
dc.date.updated2020-07-22T17:05:36Z
dc.description.abstractThe impact of global warming on the metabolic state of a species may be examined by either measuring physiological rates across a latitudinal gradient or by assessing short-term responses under experimentally controlled temperature regimes. The combination of the two approaches is seldom used but it provides valuable information on an organism's responses to temperature at broader temporal and spatial scales while allowing the isolation of temperature effects from other environmental variables. Here we used both approaches to assess the warming effects on the total acquisition of dissolved inorganic nitrogen (DIN; nitrate, ammonium) and organic N (DON; amino acids, peptides) by the globally widespread seagrass Zostera marina. DIN and DON uptake rates were measured in plants from three sites covering the species latitudinal distribution in Europe (Iceland, UK and Portugal). The responses of DIN and DON uptake rates of plants from the middle latitude (UK) to a latitudinal range of temperatures (8, 12 and 17 degrees C) were also measured. We further examined the microbial uptake of DON along the latitudinal distribution and whether temperature is the main driver of that uptake. Our results showed that warming greatly increased the total N uptake by Z. marina and also the relative contribution of DON to total N acquisition. The microbial uptake of DON increased towards warmer latitudes, and temperature was the main driver of these observations. Ocean warming will increase the nitrogen demand of Z. marina and this demand may be met by an increasing uptake of organic nitrogen forms. This indicates that Z. marina, and probably other seagrass species, can be winners under global change as nitrogen uptake capacity will not limit growth driven by increased photosynthetic assimilation of CO2.pt_PT
dc.description.sponsorshipDL 57/2016/CP1361/CT0001, UID/Multi/04326/2019pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1111/1365-2435.13576pt_PT
dc.identifier.issn0269-8463
dc.identifier.issn1365-2435
dc.identifier.slugcv-prod-1901622
dc.identifier.urihttp://hdl.handle.net/10400.1/14119
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWileypt_PT
dc.relationEFFECTS OF OCEAN ACIDIFICATION ON THE NITROGEN BUDGET OF SEAGRASSES: ROLE OF ORGANIC VS. INORGANIC SOURCES
dc.subjectDIN uptakept_PT
dc.subjectDON uptakept_PT
dc.subjectGlobal warmingpt_PT
dc.subjectLatitudinal distributionpt_PT
dc.subjectMicrobial uptakept_PT
dc.subjectSeagrassespt_PT
dc.subjectTemperaturept_PT
dc.subjectZostera marinapt_PT
dc.titleOcean warming increases the nitrogen demand and the uptake of organic nitrogen of the globally distributed seagrass Zostera marinapt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleEFFECTS OF OCEAN ACIDIFICATION ON THE NITROGEN BUDGET OF SEAGRASSES: ROLE OF ORGANIC VS. INORGANIC SOURCES
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F91629%2F2012/PT
oaire.citation.titleFunctional Ecologypt_PT
person.familyNameAlexandre
person.familyNameSantos
person.givenNameAna
person.givenNameRui
person.identifier42560
person.identifier.ciencia-idA711-4AF6-8F36
person.identifier.ciencia-id9B18-444D-2244
person.identifier.orcid0000-0001-7164-1487
person.identifier.orcid0000-0002-7861-4366
person.identifier.ridB-4168-2008
person.identifier.scopus-author-id35836826900
person.identifier.scopus-author-id7201375018
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.cv.cienciaid9B18-444D-2244 | Rui Orlando Pimenta Santos
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationc907d7fb-323d-4227-84b7-f46c150d05f4
relation.isAuthorOfPublication84487ca8-404a-4584-81f0-3662c340d712
relation.isAuthorOfPublication.latestForDiscovery84487ca8-404a-4584-81f0-3662c340d712
relation.isProjectOfPublication183ff0cd-c94c-4b5b-9c6c-97c7e3cc4697
relation.isProjectOfPublication.latestForDiscovery183ff0cd-c94c-4b5b-9c6c-97c7e3cc4697

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