...Fuxi Wang; Wanpeng Wang; Zhongchi Liu ABSTRACT The stem cell pools at the shoot apex and root tip give rise to all the above- and below-ground tissues of a plant. Previous studies in Arabidopsis identified a TSO1-MYB3R1 transcriptional module that controls the number and size of the stem cell pools...

... is essential for understanding higher plant growth and development. We describe the molecular isolation and analyses of an Arabidopsis gene, TSO1 , which regulates both of these processes. We previously showed that tso1 mutants displayed defects in cell division of floral meristem cells including partially...

...Bernard A. Hauser; Jeannie Q. He; Sung O. Park; Charles S. Gasser ABSTRACT Previous analyses of tso1 mutants revealed a loss of control of directional cellular expansion and coordination of growth of adjacent cells, and defects in karyokinesis and cytokinesis. We isolated TSO1 using a map-based...

...Zhongchi Liu; Mark P. Running; Elliot M. Meyerowitz ABSTRACT We describe an Arabidopsis mutant, tso1 , which develops callus-like tissues in place of floral organs. The tso1 floral meristem lacks properly organized three cell layers, and the nuclei of these cells are irregular in size and shape...