Two new loci, PLEIADE and HYADE, implicate organ-specific regulation of cytokinesis in Arabidopsis
Müller S, Fuchs E, Ovecka M, Wysocka-Diller J, Benfey PN, Hauser MT (2002)
Publication Type: Journal article
Publication year: 2002
Journal
Book Volume: 130
Pages Range: 312-324
Journal Issue: 1
DOI: 10.1104/pp.004416
Abstract
In screens for regulators of root morphogenesis in Arabidopsis we isolated six new recessive mutants with irregular cell expansion. Complementation analyses placed the mutations in two loci, PLEIADE (PLE) and HYADE (HYA). Phenotypic analyses revealed multinucleated cells, cell wall stubs, and synchronized cell divisions in incompletely separated cells that are all characteristics of defective cytokinesis. These defects were pronounced in roots and undetectable in aerial organs. In addition, fertility and germination were not affected by the mutations. Thus, the alleles that we have isolated of PLE and HYA suggest that the genes may encode organ-specific components needed primarily during root development. Analysis of microtubule arrays during cell cycle in ple and hya roots indicates that the presence of several synchronized nuclei influences the position of preprophase band, mitotic spindles, and phragmoplasts. The enhanced and synergistic phenotype of PLE/ple.hya/hya seedlings and double mutants point to a role of PLE and HYA in the same process. These mutants provide tools to elucidate the regulation of nuclear cytoskeletal interactions during cell division and cytokinesis.
Authors with CRIS profile
Involved external institutions
Universität für Bodenkultur Wien (BOKU) / University of Natural Resources and Life Sciences, Vienna
Austria (AT)
Slovak Academy of Sciences (SAS) / Slovenská akadémia vied (SAV)
Slovakia (SK)
New York University (NYU)
United States (USA) (US)
Austria (AT)
Slovak Academy of Sciences (SAS) / Slovenská akadémia vied (SAV)
Slovakia (SK)
New York University (NYU)
United States (USA) (US)
How to cite
APA:
Müller, S., Fuchs, E., Ovecka, M., Wysocka-Diller, J., Benfey, P.N., & Hauser, M.-T. (2002). Two new loci, PLEIADE and HYADE, implicate organ-specific regulation of cytokinesis in Arabidopsis. Plant Physiology, 130(1), 312-324. https://dx.doi.org/10.1104/pp.004416
MLA:
Müller, Sabine, et al. "Two new loci, PLEIADE and HYADE, implicate organ-specific regulation of cytokinesis in Arabidopsis." Plant Physiology 130.1 (2002): 312-324.
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