ArticlePlant molecular biology2015
Iron deficiency regulated OsOPT7 is essential for iron homeostasis in rice.
Article in Plant molecular biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed, 49 citations in OpenAlex.
- Establishment of a Non-transgenic Iron-Biofortified Rice Line Using a Novel HRZ1 Mutation.Rice (New York, N.Y.) · 2026Article
- Genotype-specific germination behavior induced by sustainable priming techniques in response to water deprivation stress in rice.Frontiers in plant science · 2024Article
- Loss of OPT3 function decreases phloem copper levels and impairs crosstalk between copper and iron homeostasis and shoot-to-root signaling in Arabidopsis thaliana.The Plant cell · 2023Article
- Genome-wide transcriptome analysis of the orphan crop tef (Eragrostis tef (Zucc.) Trotter) under long-term low calcium stress.Scientific reports · 2022Article
- Genome-Wide Identification and Transcript Analysis Reveal Potential Roles of Oligopeptide Transporter Genes in Iron Deficiency Induced Cadmium Accumulation in Peanut.Frontiers in plant science · 2022Article
- Defects in the rice aconitase-encoding OsACO1 gene alter iron homeostasis.Plant molecular biology · 2020Article
- Article
- Overexpression of native Musa-miR397 enhances plant biomass without compromising abiotic stress tolerance in banana.Scientific reports · 2019Article
- The Combined Strategy for iron uptake is not exclusive to domesticated rice (Oryza sativa).Scientific reports · 2019Article
- How Plants Handle Trivalent (+3) Elements.International journal of molecular sciences · 2019Review
- Transcriptional and physiological analyses of Fe deficiency response in maize reveal the presence of Strategy I components and Fe/P interactions.BMC genomics · 2017Article
- Knocking down mitochondrial iron transporter (MIT) reprograms primary and secondary metabolism in rice plants.Journal of experimental botany · 2016Article
- Regulating Subcellular Metal Homeostasis: The Key to Crop Improvement.Frontiers in plant science · 2016Review
- Transition Metal Transport in Plants and Associated Endosymbionts: Arbuscular Mycorrhizal Fungi and Rhizobia.Frontiers in plant science · 2016Review
- Auxin Resistant1 and PIN-FORMED2 Protect Lateral Root Formation in Arabidopsis under Iron Stress.Plant physiology · 2015Article
- Local and systemic signaling of iron status and its interactions with homeostasis of other essential elements.Frontiers in plant science · 2015Review
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Authors and funding
12 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The molecular mechanism of iron (Fe) uptake and transport in plants are well-characterized; however, many components of Fe homeostasis remain unclear. We cloned iron-deficiency-regulated oligopeptide transporter 7 (OsOPT7) from rice. OsOPT7 localized to the plasma membrane and did not transport Fe(III)-DMA or Fe(II)-NA and GSH in Xenopus laevis oocytes. Furthermore OsOPT7 did not complement the growth of yeast fet3fet4 mutant. OsOPT7 was specifically upregulated in response to Fe-deficiency. Promoter GUS analysis revealed that OsOPT7 expresses in root tips, root vascular tissue and shoots as well as during seed development. Microarray analysis of OsOPT7 knockout 1 (opt7-1) revealed the upregulation of Fe-deficiency-responsive genes in plants grown under Fe-sufficient conditions, despite the high Fe and ferritin concentrations in shoot tissue indicating that Fe may not be available for physiological functions. Plants overexpressing OsOPT7 do not exhibit any phenotype and do not accumulate more Fe compared to wild type plants. These results indicate that OsOPT7 may be involved in Fe transport in rice.
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