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Summarize the physiological and metabolic roles of iron in plants while evaluating transgenic strategies for iron biofortification in rice seeds.

January 1, 2015Reviews in Agricultural ScienceOpen Access

Role of Iron in Plant Growth and Metabolism

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Authors

GRGyana Ranjan RoutSiksha O Anusandhan University SSSunita SahooOdisha University of Agriculture and Technology

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Implication

Literature review reveals mechanisms of iron uptake and transgenic biofortification in rice, highlighting strategies to overcome soil insolubility and enhance seed nutrition.

Key Points

Summarize the physiological and metabolic roles of iron in plants while evaluating transgenic strategies for iron biofortification in rice seeds.
Reviewed physiological and biochemical mechanisms governing plant iron acquisition, metabolic utilization, toxicity, and homeostasis.
Evaluated seven specific transgenic and molecular breeding strategies designed to enhance iron accumulation, translocation, and storage in rice.
Iron deficiency occurs predominantly due to insoluble ferric compounds forming at neutral pH, disrupting chlorophyll synthesis, chloroplast integrity, and electron transport chain cytochromes.
Transgenic enhancement of rice grain iron involves endosperm-specific ferritin expression, nicotianamine synthase (NAS) overexpression, and OsYSL2 or OsIRT1/OsYSL15 transporter upregulation.
Further strategies optimize grain loading via mugineic acid phytosiderophore biosynthesis, OsIRO2 transcription factor overexpression, and vacuolar OsVIT1 or OsVIT2 transporter knockdown.

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Rout et al. (2015) studied this question.

synapsesocial.com/papers/69dbe4a078a3e0e288685f5e https://doi.org/10.7831/ras.3.1

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Implication

Literature review reveals mechanisms of iron uptake and transgenic biofortification in rice, highlighting strategies to overcome soil insolubility and enhance seed nutrition.

Role of Iron in Plant Growth and Metabolism

Discussion

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Implication

Key Points

Cite This Study

Role of Iron in Plant Growth and Metabolism

Discussion

Member takes

Implication

Key Points

Cite This Study

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