Plant Physiol. Drug Metab Dispos
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH
QUICK SEARCH:   [advanced]


     

Plant Physiology Preview
Published on March 26, 2004; 10.1104/pp.103.031088

This Article
Right arrow Full Text (Plant Physiology Preview (PDF))
Right arrow All Versions of this Article:
134/4/1614    most recent
pp.103.031088v1
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Kazama, H.
Right arrow Articles by Wasteneys, G. O.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Kazama, H.
Right arrow Articles by Wasteneys, G. O.
Agricola
Right arrow Articles by Kazama, H.
Right arrow Articles by Wasteneys, G. O.

Received July 30, 2003
Returned for revision October 1, 2003
Accepted January 3, 2004

Transient Exposure to Ethylene Stimulates Cell Division and Alters the Fate and Polarity of Hypocotyl Epidermal Cells

Haruko Kazama *, Haruka Dan , Hidemasa Imaseki , and Geoffrey O. Wasteneys

Department of Biology, International Christian University, Mitaka, Tokyo 181-8585, Japan (H.K., H.D.); Plant Cell Biology Group, Research School of Biological Sciences, The Australian National University, Canberra, Australian Capital Territory 2601, Australia (H.K., G.O.W.); School of Agricultural Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan (H.I.); and Department of Botany, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z4 (G.O.W.)

* Corresponding author; email: kazama{at}icu.ac.jp.

After transient exposure to the gaseous hormone ethylene, dark-grown cucumber (Cucumis sativus) hypocotyls developed unusual features. Upon ethylene's removal, the developing epidermis showed significant increases in cell division rates, producing an abundance of guard cells and trichomes. These responses to ethylene depended on the stage of development at the time of ethylene exposure. In the upper region of the hypocotyl, where cells were least differentiated at the onset of ethylene treatment, complex, multicellular protuberances formed. Further down the hypocotyl, where stomata and trichomes were beginning to develop at the onset of ethylene exposure, an increase in the number of stomata and trichomes was observed. Stomatal complexes developing after the ethylene treatment had a significant increase in the number of stomatal subsidiary cells and the number of cells per trichome increased. Analysis of division patterns in stomatal complexes indicated that exposure to ethylene either suspended or altered cell fate. Ethylene also altered cell division polarity, resulting in aberrant stomatal complexes and branched trichomes. To our knowledge, the results of this study demonstrate for the first time that transient treatment with physiological concentrations of ethylene can alter cell fate and increase the propensity of cells to divide.




This article has been cited by other articles:


Home page
 DevelopmentHome page
Y. Gan, C. Liu, H. Yu, and P. Broun
Integration of cytokinin and gibberellin signalling by Arabidopsis transcription factors GIS, ZFP8 and GIS2 in the regulation of epidermal cell fate
Development, June 1, 2007; 134(11): 2073 - 2081.
[Abstract] [Full Text] [PDF]

Home page
 Plant CellHome page
P. M. Chilley, S. A. Casson, P. Tarkowski, N. Hawkins, K. L.-C. Wang, P. J. Hussey, M. Beale, J. R. Ecker, G. K. Sandberg, and K. Lindsey
The POLARIS Peptide of Arabidopsis Regulates Auxin Transport and Root Growth via Effects on Ethylene Signaling
PLANT CELL, November 1, 2006; 18(11): 3058 - 3072.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
M. K. Zhiponova, A. Pettko-Szandtner, E. Stelkovics, Z. Neer, S. Bottka, T. Krenacs, D. Dudits, A. Feher, and L. Szilak
Mitosis-Specific Promoter of the Alfalfa Cyclin-Dependent Kinase Gene (Medsa;CDKB2;1) Is Activated by Wounding and Ethylene in a Non-Cell Division-Dependent Manner
Plant Physiology, February 1, 2006; 140(2): 693 - 703.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH
ASPB Publications PLANT PHYSIOLOGY THE PLANT CELL
Copyright © 2004 by the American Society of Plant Biologists