Crossref journal-article
Oxford University Press (OUP)
Plant Physiology (286)
Abstract

Abstract Growth during plant development is predominantly governed by the combined activities of cell division and cell elongation. The relative contribution of both activities controls the growth of a tissue. A fast change in growth is exhibited at the apical hypocotyl of etiolated seedlings where cells grow at different rates to form a hook-like structure, which is traditionally assumed to result from differential cell elongation. Using new tools we show asymmetric distribution of cell division during early stages of hook development. Cell divisions in the apical hook were predominantly found in subepidermal layers during an early step of hook development, but were absent in mutants exhibiting a hookless phenotype. In addition, during exaggeration of hook curvature, which is mediated by ethylene, a rapid change in the combined activities of cell division and cell elongation was detected. Our results indicate a fast change in cell division activity during apical hook development. We suggest that cell division together with cell elongation contributes to apical hook growth. Our results emphasize the change in the relative contribution of cell division and cell elongation in a fast growing structure like the apical hook.

Bibliography

Raz, V., & Koornneef, M. (2001). Cell Division Activity during Apical Hook Development. Plant Physiology, 125(1), 219–226.

Authors 2
  1. Vered Raz (first)
  2. Maarten Koornneef (additional)
References 16 Referenced 64
  1. 10.1104/pp.116.4.1515 / Plant Physiol / Analysis of cell division and elongation underlying the developmental acceleration of root growth in Arabidopsis thaliana. by Beemster (1998)
  2. 10.1046/j.1365-313x.1999.00620.x / Plant J / Spatio-temporal analysis of mitotic activity with a labile cyclin-GUS fusion protein. by Colon-Carmona (1999)
  3. 10.1038/380520a0 / Nature / Control of root growth and development by cyclin expression. by Doerner (1996)
  4. 10.1006/dbio.1999.9443 / Dev Biol / Cell cycling and cell enlargement in developing leaves of Arabidopsis. by Donnelly (1999)
  5. 10.1016/S0955-0674(97)80083-X / Curr Opin Cell Biol / Conserved and novel regulators of the plant cell cycle. by Doonan (1997)
  6. 10.1126/science.7732375 / Science / The ethylene signal transduction pathway in plants. by Ecker (1995)
  7. 10.1104/pp.114.1.295 / Plant Physiol / Cellular basis of hypocotyl growth in Arabidopsis thaliana. by Gendreau (1997)
  8. 10.1073/pnas.93.22.12094 / Proc Natl Acad Sci USA / Programmed cell death: a way of life for plants. by Greenberg (1996)
  9. 10.1007/BF00042220 / Plant Mol Biol / In and out of the plant cell cycle. by Hirt (1996)
  10. 10.1242/dev.126.23.5231 / Development / Disruption of an RNA helicase/RNAse III gene in Arabidopsis causes unregulated cell division in floral meristems. by Jacobsen (1999)
  11. 10.1016/S0092-8674(00)81095-8 / Cell / HOOKLESS1, an ethylene response gene, is required for differential cell elongation in the Arabidopsis hypocotyl. by Lehman (1996)
  12. 10.1242/dev.126.16.3661 / Development / Regulation of differential growth in the apical hook of Arabidopsis. by Raz (1999)
  13. 10.1016/S0092-8674(00)80700-X / Cell / The stem cell population of Arabidopsis shoot meristems in maintained by a regulatory loop between the CLAVATA and WUSCHEL genes. by Schoof (2000)
  14. 10.1002/j.1537-2197.1978.tb06072.x / Am J Bot / Kinematics of hypocotyl curvature. by Silk (1978)
  15. 10.1074/jbc.274.30.20997 / J Biol Chem / Induction of cell cycle regulated activity of tobacco telomerase. by Tamura (1999)
  16. 10.1242/dev.122.5.1589 / Development / Two independent and polarized processes of cell elongation regulate leaf blade expansion in Arabidopsis thaliana (L.) Heynh. by Tsuge (1996)
Dates
Type When
Created 23 years, 1 month ago (July 27, 2002, 12:59 a.m.)
Deposited 4 years, 2 months ago (June 25, 2021, 7:29 a.m.)
Indexed 2 days, 19 hours ago (Sept. 3, 2025, 6:32 a.m.)
Issued 24 years, 8 months ago (Jan. 1, 2001)
Published 24 years, 8 months ago (Jan. 1, 2001)
Published Online 24 years, 8 months ago (Jan. 1, 2001)
Published Print 24 years, 8 months ago (Jan. 1, 2001)
Funders 0

None

@article{Raz_2001, title={Cell Division Activity during Apical Hook Development}, volume={125}, ISSN={0032-0889}, url={http://dx.doi.org/10.1104/pp.125.1.219}, DOI={10.1104/pp.125.1.219}, number={1}, journal={Plant Physiology}, publisher={Oxford University Press (OUP)}, author={Raz, Vered and Koornneef, Maarten}, year={2001}, month=jan, pages={219–226} }