Iron homeostasis related genes in rice

By Jeferson Gross, R. Stein, A. Fett-Neto, J. P. Fett. 2003

175 citations recorded by the source corpus.

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 (Fe 3+ -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.

Subfields: Plant Science

View Paper: https://www.semanticscholar.org/paper/58fe74e892dcf6b06e9ee69395d275b51956b71f

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In Plant Science

1. Martin R. Broadley
2. P. White
3. J. Ma
4. A. Yamauchi
5. Y. Inukai
6. H. Wang
7. G. R. Rout
8. R. Stein

Citations in the corpus

• Comprehending crystalline β-carotene accumulation by comparing engineered cell models and the natural carotenoid-rich system of citrus (2011, unknown): “Moreover, the expression patterns of these genes mirrors those observed in iron-deficient rice leaves, further supporting our hypothesis (Gross et al., 2003; Kobayashi et al., 2005; Dos Santos and De Oliveira, 2007; Walker and Connolly, 2008).”
• Biofortification of crops with seven mineral elements often lacking in human diets--iron, zinc, copper, calcium, magnesium, selenium and iodine. (2009, background): “…genomes of both Arabidopsis and rice (Oryza sativa) appear to contain the genes necessary for both strategy I and strategy II Fe acquisition, but there are quantitative differences in their number and qualitative differences in their structure and activity (Gross et al., 2003; Puig et al., 2007a).”
• ROLE OF IRON IN PLANT GROWTH AND METABOLISM (2015, background): “Several iron transporters are able to transport iron along with Zn and other metals (Korshunova et al., 1999; Eckhardt et al., 2001; Gross et al., 2003; Lopez-Millan et al., 2004).”
• Molecular genetic approaches to increasing mineral availability and vitamin content of cereals (2007, background): “However, this strategy may be pursued further as two rice FRO candidate genes coding for Fe-chelate reductases (Gross et al., 2003) and functional Fe transporters of the ZIP family have recently been identified (Ishimaru et al.”
• Root Development and Nutrient Uptake (2006, background): “About thirteen ZIP genes have been cloned from rice (Gross et al., 2003).”
• Plant Root Responses to Three Abundant Soil Minerals: Silicon, Aluminum and Iron (2005, background): “, 2003) and two genes in rice (Gross et al., 2003), although most of these genes have not yet been functionally characterized.”
• QTL mapping for biomass and physiological parameters linked to resistance mechanisms to ferrous iron toxicity in rice (2009, background): “In addition, it affects the plant development and leads to sterility (Ponnamperuma et al. 1955; Gross et al. 2003).”
• Differential regulation of the two rice ferritin genes (OsFER1 and OsFER2) (2009, background): “Interestingly, both rice ferritin genes also contain IDRS sequences in their promoter regions [22],what could explain a similar regulation patternbetweenAtFer1 and the rice ferritingenes.”
• Physiology and molecular biology of stress tolerance in plants (2006, background): “These have been detected in Arabidopsis (Robinson et al., 1997; Robinson et al., 1999), pea (Pisum sativum) (Waters et al., 2002), and rice (Gross et al., 2003).”