Embryo-specific silencing of a transporter reduces phytic acid content of maize and soybean seeds

Article Abstract:

The studies have shown that maize Ipa1 mutants are defective in a multidrug resistance-associated protein (MRP) ATP-binding cassette (ABC) transporter that is expressed most highly in embryos, but also in immature endosperm, germinating seed and vegetative tissues. Suppressing the homologous soybean MRP gene has generated low-phytic-acid seed, indicating that the strategy might be feasible for many crops.

Animal nutrition

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The ABCs of low-phytate crops

Article Abstract:

A new strategy is described for increasing the available phosphorus content of seeds. An ATP-binding cassette (ABC) transporter is identified as a key contributor to phytic-acid accumulation in maize and soybean seeds and it is then silenced to engineer a dominant, seed-specific block in phytic-acid accumulation.

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The ABCs of low-phytate crops

Article Abstract:

A new strategy is described for increasing the available phosphorus content of seeds. An ATP-binding cassette (ABC) transporter is identified as a key contributor to phytic-acid accumulation in maize and soybean seeds and it is then silenced to engineer a dominant, seed-specific block in phytic-acid accumulation.

All Other Basic Inorganic Chemical Manufacturing, Frozen Fruit, Juice, and Vegetable Manufacturing, Corn, Corn Farming, Soybean Farming, Industrial inorganic chemicals, not elsewhere classified, Soybeans, Frozen fruits and vegetables, Phosphorus & Compounds, Elemental Phosphorus, Frozen Beans ex Lima, Genetic aspects, Nutritional aspects, Phosphorus, Phosphorus (Chemical element), Soybean, Phytic acid

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