Cortical microtubule arrays lose uniform alignment between cells and are oryzalin resistant in the arabidopsis mutant, radially swollen 6
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Bannigan, Alex; Wiedemeier, Allison MD; Williamson, Richard; Overall, Robyn L; Baskin, Tobias I
Description
The coordinated expansion of cells is essential to the formation of correctly shaped plant tissues and organs. Members of the radially swollen (rsw) class of temperature-sensitive arabidopsis mutants were isolated in a screen for reduced anisotropic expansion, by selecting plants with radially swollen root tips. Here we describe rsw6, in which cortical microtubules in the root epidermis are well organized in parallel arrays within cells, but neighboring cells frequently contain arrays differing...[Show more]
dc.contributor.author | Bannigan, Alex | |
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dc.contributor.author | Wiedemeier, Allison MD | |
dc.contributor.author | Williamson, Richard | |
dc.contributor.author | Overall, Robyn L | |
dc.contributor.author | Baskin, Tobias I | |
dc.date.accessioned | 2015-12-07T22:49:29Z | |
dc.identifier.issn | 0032-0781 | |
dc.identifier.uri | http://hdl.handle.net/1885/26771 | |
dc.description.abstract | The coordinated expansion of cells is essential to the formation of correctly shaped plant tissues and organs. Members of the radially swollen (rsw) class of temperature-sensitive arabidopsis mutants were isolated in a screen for reduced anisotropic expansion, by selecting plants with radially swollen root tips. Here we describe rsw6, in which cortical microtubules in the root epidermis are well organized in parallel arrays within cells, but neighboring cells frequently contain arrays differing in their mean orientation by up to 90°. Microtubules in rsw6 are more resistant to oryzalin-induced depolymerization than wild-type microtubules, and their reorientation is accompanied by swelling of the epidermal cells. The reorientation phenotype is blocked by taxol and by the depolymerization of actin filaments. We propose that rsw6 microtubule organization is functional on a local level, but defective on a global scale. The rsw6 mutant provides a unique tool with which to study the coordination of microtubule organization at a multicellular level. | |
dc.publisher | Japanese Society of Plant Physiologists | |
dc.source | Plant and Cell Physiology | |
dc.subject | Keywords: actin; antineoplastic agent; Arabidopsis protein; nitrobenzene derivative; oryzalin; paclitaxel; sulfanilamide derivative; tubulin modulator; anisotropy; Arabidopsis; article; cell line; cytology; drug effect; drug resistance; gene; genetics; growth, deve Cytoskeleton; Epidermis; Oryzalin; Radial expansion; Root; Taxol | |
dc.title | Cortical microtubule arrays lose uniform alignment between cells and are oryzalin resistant in the arabidopsis mutant, radially swollen 6 | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 47 | |
dc.date.issued | 2006 | |
local.identifier.absfor | 060103 - Cell Development, Proliferation and Death | |
local.identifier.ariespublication | u9204316xPUB46 | |
local.type.status | Published Version | |
local.contributor.affiliation | Bannigan, Alex, University of Massachusetts | |
local.contributor.affiliation | Wiedemeier, Allison MD, University of Missouri | |
local.contributor.affiliation | Williamson, Richard, College of Medicine, Biology and Environment, ANU | |
local.contributor.affiliation | Overall, Robyn L, University of Sydney | |
local.contributor.affiliation | Baskin, Tobias I, University of Massachusetts | |
local.description.embargo | 2037-12-31 | |
local.bibliographicCitation.issue | 7 | |
local.bibliographicCitation.startpage | 949 | |
local.bibliographicCitation.lastpage | 958 | |
local.identifier.doi | 10.1093/pcp/pcj067 | |
dc.date.updated | 2015-12-07T12:08:54Z | |
local.identifier.scopusID | 2-s2.0-33747863795 | |
Collections | ANU Research Publications |
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