Root development in Arabidopsis: four mutants with dramatically altered root morphogenesis

Citations Over TimeTop 1% of 1993 papers

Abstract

A genetic analysis of root development in Arabidopsis thaliana has identified mutants that have abnormal morphogenesis. Four of these root morphogenesis mutants show dramatic alterations in post-embryonic root development. The short-root mutation results in a change from indeterminate to determinate root growth and the loss of internal root cell layers. The cobra and lion's tail mutations cause abnormal root cell expansion which is conditional upon the rate of root growth. Expansion is greatest in the epidermal cells in cobra and in the stele cells in lion's tail. The sabre mutation causes abnormal cell expansion that is greatest in the root cortex cell layer and is independent of the root growth rate. The tissue-specific effects of these mutations were characterized with monoclonal antibodies and a transgenic marker line. Genetic combinations of the four mutants have provided insight into the regulation of growth and cell shape during Arabidopsis root development.

Related Papers

• → An Arabidopsis MADS Box Gene That Controls Nutrient-Induced Changes in Root Architecture(1998)1,230 cited
• → GmEXLB1, a Soybean Expansin-Like B Gene, Alters Root Architecture to Improve Phosphorus Acquisition in Arabidopsis(2019)54 cited
• → Functional Analysis of Water Stress-Responsive Soybean GmNAC003 and GmNAC004 Transcription Factors in Lateral Root Development in Arabidopsis(2014)48 cited
• → LBD13 positively regulates lateral root formation in Arabidopsis(2019)37 cited
• → ASL16 gene, a member of AS2/LOB family, is essential for lateral root formation in Arabidopsis(2016)3 cited