Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/336837
Full metadata record
DC FieldValueLanguage
dc.contributor.CRUESPUNIVERSIDADE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authorunicampSodek, Ladaslav-
dc.typeArtigopt_BR
dc.titleNitrogen metabolism of neotropical tree seedlings with contrasting ecological characteristicspt_BR
dc.contributor.authorDebiasi, Tatiane V.-
dc.contributor.authorCalzavara, Anderson K.-
dc.contributor.authorSilva, Ligia M. I. da-
dc.contributor.authorSilva, Janaina G. da-
dc.contributor.authorBianchini, Edmilson-
dc.contributor.authorPimenta, José A.-
dc.contributor.authorStolf-Moreira, Renata-
dc.contributor.authorAidar, Marcos P. M.-
dc.contributor.authorSodek, Ladaslav-
dc.contributor.authorOliveira, Halley C.-
dc.subjectNitrogênio - Metabolismopt_BR
dc.subjectNitratospt_BR
dc.subjectIsótopos estáveispt_BR
dc.subjectAminoácidospt_BR
dc.subject.otherlanguageNitratespt_BR
dc.subject.otherlanguageNitrogen - Metabolismpt_BR
dc.subject.otherlanguageAminoacidspt_BR
dc.subject.otherlanguageStable isotopespt_BR
dc.description.abstractDespite the importance of nitrogen for plant performance, few studies have addressed the nitrogen assimilation and amino acid metabolism of Neotropical trees. This study analyzed the nitrogen use strategies of tree species native to the Brazilian Atlantic Forest with different degrees of shade tolerance: Heliocarpus popayanensis (a shade-intolerant species), Cariniana estrellensis (a shade-tolerant canopy species) and Eugenia brasiliensis (a shade-tolerant understory species). We analyzed the growth and nitrogen uptake, assimilation and translocation of seedlings cultivated hydroponically with nitrate (NO3−) or ammonium (NH4+). 15N incorporation into amino acids was monitored after incubation with 15NO3− or 15NH4+. H. popayanensis showed a preference for NO3−, characterized by high NO3− uptake rates and intense NO3− assimilation occurring primarily in the leaves. E. brasiliensis assimilated NO3− primarily in the roots and showed a preference for NH4+ uptake. The canopy species C. estrellensis assimilated NO3− predominantly in the leaves and absorbed NO3− and NH4+ at similar rates. Both shade-tolerant species were highly tolerant to NH4+ and showed glutamine and compounds related to nitrogen remobilization as important nitrogen carriers in their xylem sap. In contrast, H. popayanensis seedlings had their growth reduced by NH4+ and showed asparagine as the major amino acid translocated in the xylem sap. Variations in root and leaf amino acid metabolism among the species were also observed. The canopy species has nitrogen use strategies intermediate to shade-intolerant and understory species. The different responses might be related to adaptations to the different light conditions of their habitats, since high light intensities could favor the use of NO3pt_BR
dc.relation.ispartofActa physiologiae plantarumpt_BR
dc.publisher.cityHeidelbergpt_BR
dc.publisher.countryAlemanhapt_BR
dc.publisherSpringerpt_BR
dc.date.issued2019-07-
dc.date.monthofcirculationJulypt_BR
dc.language.isoengpt_BR
dc.description.volume41pt_BR
dc.description.issuenumber8pt_BR
dc.rightsFechadopt_BR
dc.sourceWOSpt_BR
dc.identifier.issn0137-5881pt_BR
dc.identifier.eissn1861-1664pt_BR
dc.identifier.doi10.1007/s11738-019-2923-9pt_BR
dc.identifier.doi001pt_BR
dc.identifier.urlhttps://link.springer.com/article/10.1007/s11738-019-2923-9pt_BR
dc.description.sponsorshipCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQpt_BR
dc.description.sponsorshipCOORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPESpt_BR
dc.description.sponsorshipFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESPpt_BR
dc.description.sponsordocumentnumber001pt_BR
dc.description.sponsordocumentnumber473757/2013-3; 306583/2017-8; 441540/2016-3pt_BR
dc.description.sponsordocumentnumberNão tempt_BR
dc.date.available2020-03-18T18:56:12Z-
dc.date.accessioned2020-03-18T18:56:12Z-
dc.description.provenanceSubmitted by Susilene Barbosa da Silva (susilene@unicamp.br) on 2020-03-18T18:56:12Z No. of bitstreams: 0. Added 1 bitstream(s) on 2020-07-20T14:18:30Z : No. of bitstreams: 1 000475514000003.pdf: 1544913 bytes, checksum: e7a5483eb87f9c2ea7d0434f7296195f (MD5)en
dc.description.provenanceMade available in DSpace on 2020-03-18T18:56:12Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-07en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/336837-
dc.contributor.departmentDepartamento de Biologia Vegetalpt_BR
dc.contributor.unidadeInstituto de Biologiapt_BR
dc.subject.keywordAmmoniumpt_BR
dc.identifier.source000475514000003pt_BR
dc.creator.orcid0000-0003-2908-2954pt_BR
dc.type.formArtigo originalpt_BR
dc.identifier.articleid131pt_BR
dc.description.sponsorNoteThe authors thank the Laboratório de Biodiversidade e Restauração de Ecossistemas of the Universidade Estadual de Londrina for making the seeds available. This work was supported by the Conselho Nacional de Desenvolvimento Científico e Tecnológico (HCO: Grant Numbers 473757/2013-3 and 306583/2017-8; HCO, RS, JAP and EB, Grant Number PELD 441540/2016-3) and Fundo de Apoio ao Ensino, à Pesquisa e à Extensão/Universidade Estadual de Londrina—REVISE 2018. This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior—Brasil (CAPES)—Finance Code 001 (AKC, LMIS, TVD)pt_BR
Appears in Collections:IB - Artigos e Outros Documentos

Files in This Item:
File Description SizeFormat 
000475514000003.pdf1.51 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.