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4 may 2012 12:15:47

 
Poinsettia protoplasts - a simple, robust and efficient system for transient gene expression studies (Plant Methods)
 


Background: Transient gene expression systems are indispensable tools in molecular biology. Yet, their routine application is limited to only few plant species and often requires substantial equipment and facilities. The high content of chloroplasts and chlorophyll can impede downstream applications of transformed cells from green plant tissue. Results: We describe a fast and simple technique for the high-yield isolation and efficient transformation (>70%) of mesophyll-derived protoplasts from red leaves of the perennial plant Poinsettia (Euphorbia pulccherrima) for which no particular growth facilities or expensive equipment are needed. Poinsettia protoplasts display an astonishing robustness and can be employed in all commonly-used downstream applications, such as subcellular localisation (multi-colour fluorescence) or promoter activity studies. Due to a low abundance of chloroplasts or chromoplasts, problems encountered in other mesophyll-derived protoplast systems (particularly autofluorescence) are alleviated. Transgene expression is detectable within 90 min post-transformation and lasts over several days. Conclusions: The simplicity of isolation and transformation renders Poinsettia protoplasts an attractive system for transient gene expression experiments, including multicolour fluorescence, subcellular localisation and promoter activity studies. In addition, they offer hitherto unknown possibilities for anthocyan research and industrial applications.


 
251 viewsCategory: Botany
 
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