Plant Physiol. Illumina
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH
QUICK SEARCH:   [advanced]


     

Plant Physiology Preview
Published on April 8, 2005; 10.1104/pp.104.054809

This Article
Right arrow Full Text (Plant Physiology Preview (PDF))
Right arrow Supplemental Data
Right arrow All Versions of this Article:
138/1/153    most recent
pp.104.054809v1
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 Web of Science
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 Web of Science (6)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Verhoeven, T.
Right arrow Articles by Mariani, C.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Verhoeven, T.
Right arrow Articles by Mariani, C.
Agricola
Right arrow Articles by Verhoeven, T.
Right arrow Articles by Mariani, C.

Received October 13, 2004
Returned for revision January 21, 2005
Accepted February 10, 2005

STIG1 Controls Exudate Secretion in the Pistil ofPetunia and Tobacco

Tamara Verhoeven , Richard Feron , Mieke Wolters-Arts , Johan Edqvist , Tom Gerats , Jan Derksen , and Celestina Mariani *

Plant Cell Biology, Department of Experimental Botany, Radboud University, 6525 ED Nijmegen, The Netherlands
Department of Plant Biology and Forest Genetics, Swedish University of Agricultural Sciences, 750 07 Uppsala, Sweden
Plant Genetics, Department of Experimental Botany, Radboud University, 6525 ED Nijmegen, The Netherlands

* Corresponding author; email: c.mariani{at}science.ru.nl.

The lipid-rich, sticky exudate covering the stigma of solanaceous species such as tobacco (Nicotiana tabacum) and petunia (Petunia hybrida) contains several proteins, of which only some have been characterized to date. Proteome analysis of the stigmatic exudate in both species revealed the presence of a cysteine-rich, slightly acidic 12-kD protein called stigma-specific protein 1 (STIG1). In both tobacco and petunia, Stig1 is highly expressed at the mRNA level in very young and developing flowers, whereas hardly any Stig1 transcript is detected in mature flowers. This expression pattern coincides with the differentiation of the secretory zone, forming the intercellular spaces into which the exudate is secreted. Using reverse genetics, we show that STIG1 is involved in the secretion and merging of exudate lipids in the intercellular spaces of the secretory zone and that plants lacking STIG1 show an accelerated deposition of exudate onto the stigmatic surface. This phenotype was observed both in a petunia knockout mutant and in tobacco transgenic plants. We therefore propose that STIG1 plays a role in the temporal regulation of the essential exudate secretion onto the stigma.




This article has been cited by other articles:


Home page
 Proc. Natl. Acad. Sci. USAHome page
M. Wrzaczek, M. Brosche, H. Kollist, and J. Kangasjarvi
Arabidopsis GRI is involved in the regulation of cell death induced by extracellular ROS
PNAS, March 31, 2009; 106(13): 5412 - 5417.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
A. C. Quiapim, M. S. Brito, L. A.S. Bernardes, I. daSilva, I. Malavazi, H. C. DePaoli, J. B. Molfetta-Machado, S. Giuliatti, G. H. Goldman, and M. H. S. Goldman
Analysis of the Nicotiana tabacum Stigma/Style Transcriptome Reveals Gene Expression Differences between Wet and Dry Stigma Species
Plant Physiology, March 1, 2009; 149(3): 1211 - 1230.
[Abstract] [Full Text] [PDF]

Home page
 J Exp BotHome page
G. Y. Busot, B. McClure, C. P. Ibarra-Sanchez, K. Jimenez-Duran, S. Vazquez-Santana, and F. Cruz-Garcia
Pollination in Nicotiana alata stimulates synthesis and transfer to the stigmatic surface of NaStEP, a vacuolar Kunitz proteinase inhibitor homologue
J. Exp. Bot., August 1, 2008; 59(11): 3187 - 3201.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH
ASPB Publications PLANT PHYSIOLOGY® THE PLANT CELL
Copyright © 2005 by the American Society of Plant Biologists