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dc.contributor.authorGross, Jefersonpt_BR
dc.contributor.authorStein, Ricardo Josépt_BR
dc.contributor.authorFett Neto, Arthur Germanopt_BR
dc.contributor.authorFett, Janette Palmapt_BR
dc.date.accessioned2010-06-05T04:17:21Zpt_BR
dc.date.issued2003pt_BR
dc.identifier.issn1415-4757pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/23368pt_BR
dc.description.abstractIron is essential for plants. However, excess iron is toxic, leading to oxidative stress and decreased productivity. Therefore, plants must use finely tuned mechanisms to keep iron homeostasis in each of their organs, tissues, cells and organelles. A few of the genes involved in iron homeostasis in plants have been identified recently, and we used some of their protein sequences as queries to look for corresponding genes in the rice (Oryza sativa) genome. We have assigned possible functions to thirty-nine new rice genes. Together with four previously reported sequences, we analyzed a total of forty-three genes belonging to five known protein families: eighteen YS (Yellow Stripe), two FRO (Fe3+-chelate reductase oxidase), thirteen ZIP (Zinc regulated transporter / Iron regulated transporter Protein), eight NRAMP (Natural Resistance - Associated Macrophage Protein), and two Ferritin proteins. The possible cellular localization and number of potential transmembrane domains were evaluated, and phylogenetic analysis performed for each gene family. Annotation of genomic sequences was performed. The presence and number of homologues in each gene family in rice and Arabidopsis is discussed in light of the established iron acquisition strategies used by each one of these two plantsen
dc.format.mimetypeapplication/pdf
dc.language.isoengpt_BR
dc.relation.ispartofGenetics and Molecular Biology. Vol. 26, no.4, (Dec. 2003), p.477-497pt_BR
dc.rightsOpen Accessen
dc.subjectFisiologia vegetalpt_BR
dc.subjectIronen
dc.subjectRiceen
dc.subjectBiologia molecularpt_BR
dc.subjectGenome analysisen
dc.subjectIron transportersen
dc.subjectFerritinen
dc.titleIron homeostasis related genes in ricept_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000396658pt_BR
dc.type.originNacionalpt_BR


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