Skip Navigation

This Article
Right arrow Full Text
Right arrow Full Text (PDF)
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 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 (27)
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Fujisawa, Y.
Right arrow Articles by Iwasaki, Y.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Fujisawa, Y.
Right arrow Articles by Iwasaki, Y.
Agricola
Right arrow Articles by Fujisawa, Y.
Right arrow Articles by Iwasaki, Y.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Plant and Cell Physiology, 2001, Vol. 42, No. 8 789-794
© 2001 Oxford University Press

Structure and Function of Heterotrimeric G Proteins in Plants

Yukiko Fujisawa, Hisaharu Kato and Yukimoto Iwasaki1

Department of Bioscience, Fukui Prefectural University, 4-1-1 Kenjyojima, Matsuoka-cho, Yoshida-gun, Fukui, 910-1195 Japan

Heterotrimeric G proteins are mediators that transmit the external signals via receptor molecules to effector molecules. The G proteins consist of three different subunits: {alpha}, ß, and {gamma} subunits. The cDNAs or genes for all the {alpha}, ß, and {gamma} subunits have been isolated from many plant species, which has contributed to great progress in the study of the structure and function of the G proteins in plants. In addition, rice plants lacking the {alpha} subunit were generated by the antisense method and a rice mutant, Daikoku d1, was found to have mutation in the {alpha}-subunit gene. Both plants show abnormal morphology such as dwarfism, dark green leaf, and small round seed. The findings revealed that the G proteins are functional molecules regulating some body plans in plants. There is evidence that the plant G proteins participate at least in signaling of gibberellin at low concentrations. In this review, we summarize the currently known information on the structure of plant heterotrimeric G proteins and discuss the possible functions of the G proteins in plants.

1 Corresponding author: E-mail, iwasaki@fpu.ac.jp; Fax, +81-776-61-6015.


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 Cell PhysiolHome page
J. Guo, S. Wang, J. Wang, W.-D. Huang, J. Liang, and J.-G. Chen
Dissection of the Relationship Between RACK1 and Heterotrimeric G-Proteins in Arabidopsis
Plant Cell Physiol., September 1, 2009; 50(9): 1681 - 1694.
[Abstract] [Full Text] [PDF]

Home page
 J Exp BotHome page
H. Okamoto, C. Gobel, R. G. Capper, N. Saunders, I. Feussner, and M. R. Knight
The {alpha}-subunit of the heterotrimeric G-protein affects jasmonate responses in Arabidopsis thaliana
J. Exp. Bot., May 1, 2009; 60(7): 1991 - 2003.
[Abstract] [Full Text] [PDF]

Home page
 Plant CellHome page
A. Nakashima, L. Chen, N. P. Thao, M. Fujiwara, H. L. Wong, M. Kuwano, K. Umemura, K. Shirasu, T. Kawasaki, and K. Shimamoto
RACK1 Functions in Rice Innate Immunity by Interacting with the Rac1 Immune Complex
PLANT CELL, August 1, 2008; 20(8): 2265 - 2279.
[Abstract] [Full Text] [PDF]

Home page
 Mol. Interv.Home page
H. Rompler, C. Staubert, D. Thor, A. Schulz, M. Hofreiter, and T. Schoneberg
G Protein-Coupled Time Travel: Evolutionary Aspects of GPCR Research
Mol. Interv., February 1, 2007; 7(1): 17 - 25.
[Abstract] [Full Text] [PDF]

Home page
 J Exp BotHome page
C.-M. Yeh, P.-S. Chien, and H.-J. Huang
Distinct signalling pathways for induction of MAP kinase activities by cadmium and copper in rice roots
J. Exp. Bot., February 1, 2007; 58(3): 659 - 671.
[Abstract] [Full Text] [PDF]

Home page
 J. Cell Sci.Home page
M. J. W. Adjobo-Hermans, J. Goedhart, and T. W. J. Gadella Jr
Plant G protein heterotrimers require dual lipidation motifs of G{alpha} and G{gamma} and do not dissociate upon activation
J. Cell Sci., December 15, 2006; 119(24): 5087 - 5097.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
Y. Trusov, J. E. Rookes, D. Chakravorty, D. Armour, P. M. Schenk, and J. R. Botella
Heterotrimeric G Proteins Facilitate Arabidopsis Resistance to Necrotrophic Pathogens and Are Involved in Jasmonate Signaling
Plant Physiology, January 1, 2006; 140(1): 210 - 220.
[Abstract] [Full Text] [PDF]

Home page
 J Exp BotHome page
M.-H. Hsieh and H. M. Goodman
A novel gene family in Arabidopsis encoding putative heptahelical transmembrane proteins homologous to human adiponectin receptors and progestin receptors
J. Exp. Bot., December 1, 2005; 56(422): 3137 - 3147.
[Abstract] [Full Text] [PDF]

Home page
 Plant Cell PhysiolHome page
K. Oki, Y. Fujisawa, H. Kato, and Y. Iwasaki
Study of the Constitutively Active Form of the {alpha} Subunit of Rice Heterotrimeric G Proteins
Plant Cell Physiol., February 1, 2005; 46(2): 381 - 386.
[Abstract] [Full Text] [PDF]

Home page
 Proc. Natl. Acad. Sci. USAHome page
U. Suharsono, Y. Fujisawa, T. Kawasaki, Y. Iwasaki, H. Satoh, and K. Shimamoto
The heterotrimeric G protein alpha subunit acts upstream of the small GTPase Rac in disease resistance of rice
PNAS, October 1, 2002; 99(20): 13307 - 13312.
[Abstract] [Full Text] [PDF]

Home page
 Plant CellHome page
S. M. Assmann
Heterotrimeric and Unconventional GTP Binding Proteins in Plant Cell Signaling
PLANT CELL, May 1, 2002; 14(90001): S355 - 373.
[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.