| The peri-cell-cycle in Arabidopsis. | |
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MedLine Citation:
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PMID: 11326046 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The root systems of plants proliferate via de novo formed meristems originating from differentiated pericycle cells. The identity of putative signals responsible for triggering some of the pericycle cells to re-enter the cell cycle remains unknown. Here, the cell cycle regulation in the pericycle of seedling roots of Arabidopsis thaliana (L.) HEYNH: is studied shortly after germination using various strategies. Based on the detailed analysis of the promoter-beta-glucuronidase activity of four key cell cycle regulatory genes, combined with cell length measurements, microdensitometry of DNA content, and experiments with a cell cycle-blocking agent, a model is proposed for cell cycle regulation in the pericycle at the onset of lateral root initiation. The results clearly show that before the first lateral root is initiated, the pericycle consists of dissimilar cell files in respect of their cell division history. Depending on the distance behind the root tip and on position in relation to the vascular tissue, particular pericycle cells remain in the G(2) phase of the cell cycle and are apparently more susceptible to lateral root initiation than others. |
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Authors:
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T Beeckman; S Burssens; D Inzé |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of experimental botany Volume: 52 ISSN: 0022-0957 ISO Abbreviation: J. Exp. Bot. Publication Date: 2001 Mar |
Date Detail:
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Created Date: 2001-04-30 Completed Date: 2003-06-13 Revised Date: 2009-11-19 |
Medline Journal Info:
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Nlm Unique ID: 9882906 Medline TA: J Exp Bot Country: England |
Other Details:
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Languages: eng Pagination: 403-11 Citation Subset: IM |
Affiliation:
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Vakgroep Moleculaire Genetica en Departement Plantengenetica, Vlaams Interuniversitair Instituut voor Biotechnologie (VIB), Universiteit Gent, K.L. Ledeganckstraat 35, B-9000 Gent, Belgium. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Arabidopsis
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anatomy & histology,
cytology*,
drug effects,
genetics Cell Cycle* / drug effects Cyclin B / genetics Cyclin B1 DNA, Plant / analysis Gene Expression Regulation, Developmental / drug effects Gene Expression Regulation, Plant / drug effects Genes, Plant / genetics Genes, cdc Hydroxyurea / pharmacology Plant Roots / anatomy & histology, cytology, drug effects, genetics Promoter Regions, Genetic / genetics |
| Chemical | |
Reg. No./Substance:
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0/Cyclin B; 0/Cyclin B1; 0/DNA, Plant; 127-07-1/Hydroxyurea |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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