Skip Navigation



JXB Advance Access published online on July 14, 2006
Journal of Experimental Botany, doi:10.1093/jxb/erl045
This Article
Right arrow FREE Full Text (PDF) Freely available
Right arrowOA All Versions of this Article:
57/11/2805    most recent
erl045v1
Right arrow E-letters: Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when E-letters are posted
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 Add to My Personal Archive
Right arrow Download to citation manager
Right arrow Disclaimer
Google Scholar
Right arrow Articles by Footitt, S.
Right arrow Articles by Holdsworth, M.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Footitt, S.
Right arrow Articles by Holdsworth, M.
Agricola
Right arrow Articles by Footitt, S.
Right arrow Articles by Holdsworth, M.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© 2006 The Author(s). This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.0/uk/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Received February 6, 2006
Accepted April 29, 2006

RESEARCH PAPER

Analysis of the role of COMATOSE and peroxisomal beta-oxidation in the determination of germination potential in Arabidopsis

Steven Footitt 1, Julietta Marquez 2, Heike Schmuths 2, Alison Baker 3, Frederica L. Theodoulou 1, and Michael Holdsworth 2 *

1 Crop Performance and Improvement Division, Rothamsted Research, Harpenden, Hertfordshire AL5 2JQ, UK
2 Division of Agricultural and Environmental Sciences, School of Biosciences, University of Nottingham, Nottingham LE12 5RD, UK
3 Centre for Plant Sciences, University of Leeds, Leeds LS2 9JT, UK

* To whom correspondence should be addressed.
Michael Holdsworth, E-mail: michael.holdsworth{at}nottingham.ac.uk


  Abstract

Comparative physiological analysis of mutant Arabidopsis seeds under defined environmental conditions was used to analyse the relative contributions of components of peroxisomal beta-oxidation in the control of seed germination potential. The COMATOSE (CTS) and KAT2 loci were shown to play essential roles in regulating germination and establishment potentials, whereas LACS6 and LACS7 loci only influenced establishment following germination. The viability and desiccation tolerance of three different mutant alleles of CTS were shown to be intermediate between that of dormant and non-dormant wild-type seeds. Analysis of ttg-1 cts-1 double mutant seeds demonstrated that the cts lesion did not influence after-ripening capacity. These data demonstrate the importance of peroxisomal beta-oxidation in the control of germination potential, but suggest that breakdown of stored lipid is not an important prerequisite for germination. A function is suggested for CTS following after-ripening within pathways related to the progression of germination prior to radicle emergence.

Keywords: Arabidopsis; beta-oxidation; COMATOSE; gene expression; germination; peroxisome; physiological genetics.
Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 J Exp BotHome page
B. S. Zheng, E. Ronnberg, L. Viitanen, T. A. Salminen, K. Lundgren, T. Moritz, and J. Edqvist
Arabidopsis sterol carrier protein-2 is required for normal development of seeds and seedlings
J. Exp. Bot., September 1, 2008; 59(12): 3485 - 3499.
[Abstract] [Full Text] [PDF]

Home page
 Mol. Cell. ProteomicsHome page
A. Savidor, R. S. Donahoo, O. Hurtado-Gonzales, M. L. Land, M. B. Shah, K. H. Lamour, and W. H. McDonald
Cross-species Global Proteomics Reveals Conserved and Unique Processes in Phytophthora sojae and Phytophthora ramorum
Mol. Cell. Proteomics, August 1, 2008; 7(8): 1501 - 1516.
[Abstract] [Full Text] [PDF]

Home page
 J Exp BotHome page
M. C. Castillo and J. Leon
Expression of the {beta}-oxidation gene 3-ketoacyl-CoA thiolase 2 (KAT2) is required for the timely onset of natural and dark-induced leaf senescence in Arabidopsis
J. Exp. Bot., May 1, 2008; 59(8): 2171 - 2179.
[Abstract] [Full Text] [PDF]

Home page
 J Exp BotHome page
S. Footitt, J. E. Cornah, I. Pracharoenwattana, J. H. Bryce, and S. M. Smith
The Arabidopsis 3-ketoacyl-CoA thiolase-2 (kat2-1) mutant exhibits increased flowering but reduced reproductive success
J. Exp. Bot., August 28, 2007; (2007) erm146v1.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
S. Footitt, D. Dietrich, A. Fait, A. R. Fernie, M. J. Holdsworth, A. Baker, and F. L. Theodoulou
The COMATOSE ATP-Binding Cassette Transporter Is Required for Full Fertility in Arabidopsis
Plant Physiology, July 1, 2007; 144(3): 1467 - 1480.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
E. Carrera, T. Holman, A. Medhurst, W. Peer, H. Schmuths, S. Footitt, F. L. Theodoulou, and M. J. Holdsworth
Gene Expression Profiling Reveals Defined Functions of the ATP-Binding Cassette Transporter COMATOSE Late in Phase II of Germination
Plant Physiology, April 1, 2007; 143(4): 1669 - 1679.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
K. Chibani, S. Ali-Rachedi, C. Job, D. Job, M. Jullien, and P. Grappin
Proteomic Analysis of Seed Dormancy in Arabidopsis
Plant Physiology, December 1, 2006; 142(4): 1493 - 1510.
[Abstract] [Full Text] [PDF]


Disclaimer:
Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.