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dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleWaterlogging effect on xylem sap glutamine of nodulated soybeanpt_BR
dc.contributor.authorAmarante, Lpt_BR
dc.contributor.authorSodek, Lpt_BR
unicamp.author.emaillsodek@unicamp.brpt_BR
unicamp.authorUniv Estadual Campinas, Dept Fisiol Vegetal, Inst Biol, BR-13083970 Campinas, SP, Brazilpt_BR
dc.subjectGlycine maxpt_BR
dc.subjecthypoxiapt_BR
dc.subjectnitrogen fixationpt_BR
dc.subjectnitrogen transportpt_BR
dc.subject.wosNitrogen-fixationpt_BR
dc.subject.wosAmino-acidspt_BR
dc.subject.wosGlycine-maxpt_BR
dc.subject.wosProline Accumulationpt_BR
dc.subject.wosLegume Nodulespt_BR
dc.subject.wosN-2 Fixationpt_BR
dc.subject.wosRoot-systempt_BR
dc.subject.wosUreidept_BR
dc.subject.wosMetabolismpt_BR
dc.subject.wosTransportpt_BR
dc.description.abstractWaterlogging of soybean plants (Glycine max L.) led to impaired symbiotic N-2 fixation and a marked decline in glutamine (Gln) concentration in xylem bleeding sap. Xylem Gln concentration increased during the growth cycle of the plant and was correlated with nodule formation. Treatments known to impair N-2 fixation, such as exposing the root system to pure N-2 gas or a mixture of Ar and O-2 (80:20; v/v), led to specific declines in xylem sap Gln. The decrease in Gln observed during waterlogging was also seen on transfer of nodulated plants to aerated hydroponics, where the decline was highly correlated with ureide content in the xylem sap. Upon flooding the nodulated root system, the specific decline in xylem sap Gln could be detected within 10 min and reached a minimum within 60 min, indicating that waterlogging has an immediate effect on N-2 fixation. It is concluded that xylem Gln arises directly from N-2-fixation and is a useful indicator of N-2 fixation activity of symbiotic soybean plants.pt
dc.relation.ispartofBiologia Plantarumpt_BR
dc.relation.ispartofabbreviationBiol. Plant.pt_BR
dc.publisher.cityDordrechtpt_BR
dc.publisher.countryHolandapt_BR
dc.publisherSpringerpt_BR
dc.date.issued2006pt_BR
dc.date.monthofcirculationSEPpt_BR
dc.identifier.citationBiologia Plantarum. Springer, v. 50, n. 3, n. 405, n. 410, 2006.pt_BR
dc.language.isoenpt_BR
dc.description.volume50pt_BR
dc.description.issuenumber3pt_BR
dc.description.initialpage405pt_BR
dc.description.lastpage410pt_BR
dc.rightsfechadopt_BR
dc.rights.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0pt_BR
dc.sourceWeb of Sciencept_BR
dc.identifier.issn0006-3134pt_BR
dc.identifier.wosidWOS:000235673000014pt_BR
dc.identifier.doi10.1007/s10535-006-0057-6pt_BR
dc.date.available2014-11-14T23:59:11Z
dc.date.available2015-11-26T17:17:48Z-
dc.date.accessioned2014-11-14T23:59:11Z
dc.date.accessioned2015-11-26T17:17:48Z-
dc.description.provenanceMade available in DSpace on 2014-11-14T23:59:11Z (GMT). No. of bitstreams: 1 WOS000235673000014.pdf: 194082 bytes, checksum: b5409be3c3f3ebf387dda20d3112cc0e (MD5) Previous issue date: 2006en
dc.description.provenanceMade available in DSpace on 2015-11-26T17:17:48Z (GMT). No. of bitstreams: 2 WOS000235673000014.pdf: 194082 bytes, checksum: b5409be3c3f3ebf387dda20d3112cc0e (MD5) WOS000235673000014.pdf.txt: 29033 bytes, checksum: e14718a05dcb2eeca95d4ba8141c96ea (MD5) Previous issue date: 2006en
dc.identifier.urihttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/75951pt_BR
dc.identifier.urihttp://www.repositorio.unicamp.br/handle/REPOSIP/75951
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/75951-
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