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. Further analyses reveal partially formed cell walls and increased DNA ploidy in tso1 floral meristem cells, indicating defects in mitosis and cytokinesis. Our finding that TSO1 is required for organ formation in floral tissues but not in other tissues indicates that TSO1 may encode a floral-specific cell division component, or that TSO1 function is redundant in nonfloral tissues.
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JOURNAL ARTICLE| 01 February 1997
TSO1 functions in cell division during Arabidopsis flower development
Online Issn: 1477-9129
Print Issn: 0950-1991
© 1997 by Company of Biologists
Development (1997) 124 (3): 665–672.
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Z. Liu, M.P. Running, E.M. Meyerowitz; TSO1 functions in cell division during Arabidopsis flower development. Development 1 February 1997; 124 (3): 665–672. doi: https://doi.org/10.1242/dev.124.3.665
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