Preparation and applications of Arabidopsis thaliana guard cell protoplasts

•  Guard cells play an important role in the physiology and development of plants. The genetic resources available for Arabidopsis thaliana make it the most favorable plant species for the study of guard cell processes, but it is not easy to isolate highly purified preparations of large numbers of g...

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Veröffentlicht in:The New phytologist. - 1979. - 153(2002), 3 vom: 18. März, Seite 517-526
1. Verfasser: Pandey, Sona (VerfasserIn)
Weitere Verfasser: Wang, Xi-Qing, Coursol, Sylvie A, Assmann, Sarah M
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2002
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Arabidopsis thaliana K+ channel abscisic acid anion channel gene expression guard cell protoplast phospholipase D stomata
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520 |a •  Guard cells play an important role in the physiology and development of plants. The genetic resources available for Arabidopsis thaliana make it the most favorable plant species for the study of guard cell processes, but it is not easy to isolate highly purified preparations of large numbers of guard cells from this species. Here, we describe methods for isolation of both guard cell and mesophyll cell protoplasts from A. thaliana and their use in the study of unique biochemical and cellular properties of these cell types. •  Protocols developed for large- and small-scale preparation of guard cell protoplasts and mesophyll cell protoplasts are described, followed by specific examples of their use in electrophysiological, biochemical and molecular approaches such as patch clamping, enzyme assays, and reverse-transcription polymerase chain reaction. •  The protocols described yield millions of highly purified, viable guard cell protoplasts and mesophyll cell protoplasts from A. thaliana. These protoplasts have been used successfully in the study of ion channel properties, assay of ABA activation in phospholipase D activity and comparisons of gene and protein expression levels. •  These techniques make it possible to elucidate electrophysiological, biochemical and molecular genetic pathways of guard cell function 
650 4 |a Journal Article 
650 4 |a Arabidopsis thaliana 
650 4 |a K+ channel 
650 4 |a abscisic acid 
650 4 |a anion channel 
650 4 |a gene expression 
650 4 |a guard cell protoplast 
650 4 |a phospholipase D 
650 4 |a stomata 
700 1 |a Wang, Xi-Qing  |e verfasserin  |4 aut 
700 1 |a Coursol, Sylvie A  |e verfasserin  |4 aut 
700 1 |a Assmann, Sarah M  |e verfasserin  |4 aut 
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