Skip Navigation

This Article
Right arrow Full Text Freely available
Right arrow FREE Full Text (PDF) Freely available
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 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 arrow Search for citing articles in:
ISI Web of Science (17)
Right arrowRequest Permissions
Right arrow Disclaimer
Google Scholar
Right arrow Articles by Takayama, S.
Right arrow Articles by Isogai, A.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Takayama, S.
Right arrow Articles by Isogai, A.
Agricola
Right arrow Articles by Takayama, S.
Right arrow Articles by Isogai, A.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Journal of Experimental Botany, Vol. 54, No. 380, pp. 149-156, January 1, 2003
© 2003 Oxford University Press

Molecular mechanism of self-recognition in Brassica self-incompatibility

Received 22 May 2002; Accepted 7 August 2002

Seiji Takayama1, and Akira Isogai

Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0101, Japan

1 To whom correspondence should be addressed. Fax: +81 743 72 5459. E-mail: takayama{at}bs.aist-nara.ac.jp

In most self-incompatible plant species, recognition of self-pollen is controlled by a single locus, termed the S-locus. In Brassica, genetic dissection of the S-locus has revealed the presence of three highly-polymorphic genes: S-receptor kinase (SRK), S-locus protein 11 (SP11) (also known as S-locus cysteine-rich protein; SCR) and S-locus glycoprotein (SLG). SRK encodes a membrane-spanning serine/threonine kinase that determines the S-haplotype specificity of the stigma. SP11 encodes a small cysteine-rich protein that determines the S-haplotype specificity of pollen. SLG encodes a secreted form of stigma protein similar to the extracellular domain of SRK. Recent biochemical studies have revealed that SP11 functions as the sole ligand for its cognate SRK receptor complex. Their interaction induces the autophosphorylation of SRK, which is expected to trigger the signalling cascade that results in the rejection of self-pollen. This so-called ligand–receptor complex interaction and receptor activation occur in an S-haplotype-specific manner, and this specificity is almost certainly the basis for self-pollen recognition.

Key words: Brassica, ligand, receptor, self-incompatibility, SLG, SP11, SRK.


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
 Plant CellHome page
H. Shimosato, N. Yokota, H. Shiba, M. Iwano, T. Entani, F.-S. Che, M. Watanabe, A. Isogai, and S. Takayama
Characterization of the SP11/SCR High-Affinity Binding Site Involved in Self/Nonself Recognition in Brassica Self-Incompatibility
PLANT CELL, January 1, 2007; 19(1): 107 - 117.
[Abstract] [Full Text] [PDF]

Home page
 J. Biol. Chem.Home page
M. Mishima, S. Takayama, K.-i. Sasaki, J.-g. Jee, C. Kojima, A. Isogai, and M. Shirakawa
Structure of the Male Determinant Factor for Brassica Self-incompatibility
J. Biol. Chem., September 19, 2003; 278(38): 36389 - 36395.
[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.