Skip Navigation


AOBPreview originally published online on January 25, 2008
Annals of Botany 2008 101(4):521-530; doi:10.1093/aob/mcm329
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow ContentSelect
Right arrow All Versions of this Article:
101/4/521    most recent
mcm329v1
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 Related articles in Ann Bot
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
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 arrowRequest Permissions
Google Scholar
Right arrow Articles by Solecka, D.
Right arrow Articles by Kacperska, A.
PubMed
Right arrow PubMed Citation
Right arrow Articles by Solecka, D.
Right arrow Articles by Kacperska, A.
Agricola
Right arrow Articles by Solecka, D.
Right arrow Articles by Kacperska, A.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?


© The Author 2008. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

Are Pectins Involved in Cold Acclimation and De-acclimation of Winter Oil-seed Rape Plants?

Danuta Solecka1, Jacek Zebrowski2,3 and Alina Kacperska1,*

1 Department of Plant Molecular Biology, Institute of Experimental Plant Biology, University of Warsaw, Miecznikowa 1, 02-096 Warsaw, Poland
2 Institute of Plant Breeding and Acclimation, Radzików, 95-870 Blonie, Poland
3 Department of Plant Physiology, Faculty of Biotechnology, University of Rzeszow, Rejtana 16c, 35-959 Rzeszów, Poland

* For correspondence. E-mail alka{at}biol.uw.edu.pl

Received: 6 September 2007    Returned for revision: 9 October 2007    Accepted: 4 December 2007    Published electronically: 25 January 2008

Background and Aims: The hypothesis was tested that pectin content and methylation degree participate in regulation of cell wall mechanical properties and in this way may affect tissue growth and freezing resistance over the course of plant cold acclimation and de-acclimation.

Methods: Experiments were carried on the leaves of two double-haploid lines of winter oil-seed rape (Brassica napus subsp. oleifera), differing in winter survival and resistance to blackleg fungus (Leptosphaeria maculans).

Key Results: Plant acclimation in the cold (2 °C) brought about retardation of leaf expansion, concomitant with development of freezing resistance. These effects were associated with the increases in leaf tensile stiffness, cell wall and pectin contents, pectin methylesterase (EC 3·1·1·11) activity and the low-methylated pectin content, independently of the genotype studied. However, the cold-induced modifications in the cell wall properties were more pronounced in the leaves of the more pathogen-resistant genotype. De-acclimation promoted leaf expansion and reversed most of the cold-induced effects, with the exception of pectin methylesterase activity.

Conclusions: The results show that the temperature-dependent modifications in pectin content and their methyl esterification degree correlate with changes in tensile strength of a leaf tissue, and in this way affect leaf expansion ability and its resistance to freezing and to fungus pathogens.

Key words: Brassica napus subsp, oleifera, cell wall, cold acclimation, de-acclimation, freezing, growth, leaf stiffness, pathogen, pectins, pectin methylesterase


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?

Related articles in Ann Bot:

ContentSnapshots

Ann Bot 2008 101: NP. [Extract] [Full Text]  

John Bryant takes a closer look at some of this month's Original Articles
J. A. Bryant
Ann Bot 2008 101: NP. [Extract] [Full Text]  





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.