OsAux1 is required for nutritropism in rice roots.

Abstract excerpt

Nutritropism is a directional root growth response to nutrient gradients, and rice (Oryza sativa L.) roots show nutritropism toward sources containing ammonium. Here, we report characterization of an EMS-mutagenized rice plant that shows a complete defect in nutritropism. Genetic analysis of the mutant identified a nucleotide substitution as a candidate for the causal mutation; this mutation leads to an amino...

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