Identification of putative target genes to manipulate Fe and Zn concentrations in rice grains

Sperotto, Raul Antônio; Boff, Tatiana; Duarte, Guilherme Coutinho Kullmann; Santos, Lívia S.; Grusak, Michael A.; Fett, Janette Palma

doi:10.1016/j.jplph.2010.05.003

Cited by 100 publications

(59 citation statements)

References 54 publications

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“…They mapped the QTL using Madhukar Swarna indica rice varieties, and then identified genes related to iron homeostasis (e.g., OsYSLs, OsNASs, OsNRAMP1, OsIRT1, OsZIPs, and APRT) as candidate genes that effect iron concentrations seeds. Sperotto et al (2010) analyzed the gene expression profiles of 25 metalrelated genes, including rice homologues of YSL2, NRAMPs, ZIPs, IRT1, VIT1, NASs, FROs, and NAC5, in eight rice varieties with different iron and zinc concentrations in the seeds. They also identified putative target genes that contributed to increased iron and zinc concentrations in rice grains.…”

Section: Iron Biofortification In Plantsmentioning

confidence: 99%

Role of Iron in Plant Growth and Metabolism

Rout

Sahoo

2015

RAS

652

275

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Section: Iron Biofortification In Plantsmentioning

confidence: 99%

Role of Iron in Plant Growth and Metabolism

Rout

Sahoo

2015

RAS

652

275

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“…In another cereal (wheat), Zn and Fe remobilization from flag leaves to seeds was clearly demonstrated (Uauy et al 2006;Waters et al 2009). It is possible that other mechanisms of mineral allocation to the rice grain, such as remobilization from other leaves, phloem delivery of minerals acquired from the xylem through a transfer process or even direct xylem loading, may contribute with higher Fe and Zn amounts than flag leaf remobilization during grain filling in rice (Sperotto et al 2010). …”

Section: Partitioning Of Zincmentioning

confidence: 99%

Zinc – An Indispensable Micronutrient

Sharma

Patni

Shankhdhar

et al. 2012

Physiol Mol Biol Plants

221

124

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Availability of Zn to plant is hampered by its immobile nature and adverse soil conditions. Thus, Zn deficiency is observed even though high amount is available in soil. Root-shoot barrier, a major controller of zinc transport in plant is highly affected by changes in the anatomical structure of conducting tissue and adverse soil conditions like pH, clay content, calcium carbonate content, etc. Zn deficiency results in severe yield losses and in acute cases plant death. Zn deficiency in edible plant parts results in micronutrient malnutrition leading to stunted growth and improper sexual development in humans. To overcome this problem several strategies have been used to enrich Zn availability in edible plant parts, including nutrient management, biotechnological tools, and classical and molecular breeding approaches.

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“…In addition to the physiological mechanisms involved in the uptake, distribution, and accumulation of Fe and Zn in seed (Borg et al 2009;Cakmak et al 2010), the use of genes (L€ onnerdal 2003;Vasconcelos et al 2003;Ghandilyan et al 2006;Brinch-Pedersen et al 2007;Waters et al 2009;Sperotto et al 2010), and chelating agents such as EDTA (Nowack et al 2008) have been reported to enhance efflux of nutrients including Fe and Zn from the vegetative tissues to seed of crops.…”

Section: Iron and Zinc Uptake Accumulation And Translocation To mentioning

confidence: 99%