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Nitrogen uptake kinetics of an enteric methane inhibitor, the red seaweed Asparagopsis armata

2021Journal article Restricted
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dc.contributor.authorTorres, Raquel
dc.contributor.authorMata, Leonardo
dc.contributor.authorSantos, Rui
dc.contributor.authorAlexandre, Ana
dc.date.accessioned2021-10-29T16:54:17Z
dc.date.available2022-09-01T00:30:13Z
dc.date.issued2021
dc.description.abstractThe use of red seaweeds of the genus Asparagopsis as a feed ingredient drastically decreases the enteric methane production by ruminant livestock, thereby reducing the environmental impact of this industry. To address the world demand for Asparagopsis mass production, it is essential to understand the species nutrition. In this study, we evaluated for the first time the uptake kinetics of inorganic and organic nitrogen forms of the tetrasporophyte of Asparagopsis armata, to identify the different uptake phases (surge and internally controlled) and to reveal the species preferential nitrogen sources. The time course of nitrogen uptake rates was followed, and the preferential nitrogen sources were assessed in choice-uptake experiments through the incorporation of (15) N-labelled ammonium, nitrate and amino acids. As expected, the short-term, surge uptake rates were much higher than the stabilized internally controlled uptake rates. Ammonium was the preferred form during the internally controlled phase but surprisingly, the surge uptake rates of amino acids were much higher than those of inorganic forms. The importance of amino acids for A. armata nutrition was further supported by its internally controlled uptake rates that where higher than those of nitrate. Ammonium is, thus, the main nitrogen form for the species nutrition, but pulses of organic nitrogen may be considered in the mass production of Asparagopsis for the enteric methane inhibition of the livestock industry.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1007/s10811-021-02604-ypt_PT
dc.identifier.issn0921-8971
dc.identifier.urihttp://hdl.handle.net/10400.1/17275
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.relationAlgarve Centre for Marine Sciences
dc.relationNot Available
dc.subjectAmmoniumpt_PT
dc.subjectAsparagopsis armatapt_PT
dc.subjectNitratept_PT
dc.subjectNitrogen uptakept_PT
dc.subjectAmino acidspt_PT
dc.subjectRhodophytapt_PT
dc.subjectSeaweedpt_PT
dc.titleNitrogen uptake kinetics of an enteric methane inhibitor, the red seaweed Asparagopsis armatapt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleNot Available
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/DL 57%2F2016/DL 57%2F2016%2FCP1361%2FCT0001/PT
oaire.citation.titleJournal of Applied Phycologypt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamDL 57/2016
person.familyNameMata
person.familyNameSantos
person.familyNameAlexandre
person.givenNameLeonardo
person.givenNameRui
person.givenNameAna
person.identifier42560
person.identifier.ciencia-idFD1E-A7E5-DD71
person.identifier.ciencia-id9B18-444D-2244
person.identifier.ciencia-idA711-4AF6-8F36
person.identifier.orcid0000-0002-5962-2483
person.identifier.orcid0000-0002-7861-4366
person.identifier.orcid0000-0001-7164-1487
person.identifier.ridB-4168-2008
person.identifier.scopus-author-id7201375018
person.identifier.scopus-author-id35836826900
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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