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      An Arabidopsis MADS box gene that controls nutrient-induced changes in root architecture.

      Science (New York, N.Y.)

      Arabidopsis, physiology, genetics, Transcription Factors, Plants, Genetically Modified, metabolism, growth & development, Plant Roots, Plant Proteins, pharmacology, Nitrates, Molecular Sequence Data, MADS Domain Proteins, Genes, Plant, Gene Expression Regulation, Plant, DNA-Binding Proteins, Arabidopsis Proteins

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          Abstract

          The development of plant root systems is sensitive to the availability and distribution of nutrients within the soil. For example, lateral roots proliferate preferentially within nitrate (NO3-)-rich soil patches. A NO3--inducible Arabidopsis gene (ANR1), was identified that encodes a member of the MADS box family of transcription factors. Transgenic plants in which ANR1 was repressed had an altered sensitivity to NO3- and no longer responded to NO3--rich zones by lateral root proliferation, indicating that ANR1 is a key determinant of developmental plasticity in Arabidopsis roots.

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          9430595

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