Document Detail

Determination of auxin transport parameters on the cellular level.
MedLine Citation:
PMID:  24306878     Owner:  NLM     Status:  In-Data-Review    
The accumulation of radioactively labelled compounds in cells is frequently used for the determination of activities of various transport systems located at the plasma membrane, including the system for carrier-mediated transport of plant hormone auxin. The measurements of auxin transport could be performed on the tissue level as well, but for more precise quantitative analysis of activity of individual auxin carriers the model of plant cell cultures represents an invaluable tool. Here, we describe the method for the determination of the activities of auxin influx and efflux carriers in plant cells grown in a suspension using radiolabelled synthetic auxins 2,4-dichlorophenoxyacetic acid (2,4-D) and naphthalene-1-acetic acid (NAA). By making use of specific inhibitors of active auxin influx and efflux, as well as cell lines overexpressing or silencing particular auxin carriers, this method allows the determination of kinetic parameters of auxin flow across the plasma membrane and the activity of those carriers.
Jan Petrášek; Martina Laňková; Eva Zažímalová
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Methods in molecular biology (Clifton, N.J.)     Volume:  1056     ISSN:  1940-6029     ISO Abbreviation:  Methods Mol. Biol.     Publication Date:  2014  
Date Detail:
Created Date:  2013-12-05     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9214969     Medline TA:  Methods Mol Biol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  241-53     Citation Subset:  IM    
Institute of Experimental Botany, ASC, Prague, Czech Republic.
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