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The peri-cell-cycle in Arabidopsis

Tom Beeckman (UGent) , Sylvia Burssens (UGent) and Dirk Inzé (UGent)
(2001) JOURNAL OF EXPERIMENTAL BOTANY. 52(suppl. 1). p.403-411
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Abstract
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.
Keywords
lateral root initiation, cell cycle, pericycle, root branching, LATERAL ROOT-FORMATION, APICAL MERISTEM, ALLIUM-CEPA, EXPRESSION, DIVISION, PATTERN, PERICYCLE, THALIANA

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Citation

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Chicago
Beeckman, Tom, Sylvia Burssens, and Dirk Inzé. 2001. “The Peri-cell-cycle in Arabidopsis.” Journal of Experimental Botany 52 (suppl. 1): 403–411.
APA
Beeckman, Tom, Burssens, S., & Inzé, D. (2001). The peri-cell-cycle in Arabidopsis. JOURNAL OF EXPERIMENTAL BOTANY, 52(suppl. 1), 403–411. Presented at the Annual meeting of the Society for Experimental Biology.
Vancouver
1.
Beeckman T, Burssens S, Inzé D. The peri-cell-cycle in Arabidopsis. JOURNAL OF EXPERIMENTAL BOTANY. 2001;52(suppl. 1):403–11.
MLA
Beeckman, Tom, Sylvia Burssens, and Dirk Inzé. “The Peri-cell-cycle in Arabidopsis.” JOURNAL OF EXPERIMENTAL BOTANY 52.suppl. 1 (2001): 403–411. Print.
@article{138562,
  abstract     = {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.},
  author       = {Beeckman, Tom and Burssens, Sylvia and Inzé, Dirk},
  issn         = {0022-0957},
  journal      = {JOURNAL OF EXPERIMENTAL BOTANY},
  keywords     = {lateral root initiation,cell cycle,pericycle,root branching,LATERAL ROOT-FORMATION,APICAL MERISTEM,ALLIUM-CEPA,EXPRESSION,DIVISION,PATTERN,PERICYCLE,THALIANA},
  language     = {eng},
  location     = {Exeter, UK},
  number       = {suppl. 1},
  pages        = {403--411},
  title        = {The peri-cell-cycle in Arabidopsis},
  url          = {http://dx.doi.org/10.1093/jexbot/52.suppl_1.403},
  volume       = {52},
  year         = {2001},
}

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