Data/hora: 17/06/2024 03:42:21

Provedor de dados: | 74
País: | Brazil
Título: | Iron homeostasis related genes in rice
Autores: | Gross,Jeferson; Stein,Ricardo José; Fett-Neto,Arthur Germano; Fett,Janette Palma.
Data: | 2003-12-01
Ano: | 2003
Palavras-chave: | Iron; Rice; Genome analysis; Iron transporters; Ferritin.
Resumo: | Iron 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 plants.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000400012
Editor: | Sociedade Brasileira de Genética
Relação: | 10.1590/S1415-47572003000400012
Formato: | text/html
Fonte: | Genetics and Molecular Biology  v.26 n.4 2003
Fonte: | info:eu-repo/semantics/openAccess