An Arabidopsis MADS box gene that controls nutrient-induced changes in root architecture.
basic_science · Level V
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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.
Medical subject headings
- Arabidopsis
- Arabidopsis Proteins
- DNA-Binding Proteins
- Genes, Plant
- Nitrates
- Plant Proteins
- Plant Roots
- Transcription Factors