Fluorescent Arabidopsis thaliana Plant : 2009

Photograph by

Fernan Federici

About this image

Confocal light micrograph of part of a Thale Cress plant (Thaliana Arabidopsis). Various fluorescent stains have been used that bind to specific protein structures. Here cyan shows plasma membranes and red and yellow denote cell nuclei. An attempt has been made to modify the DNA within each cell nucleus. All express a reference protein that binds with the red fluorescent marker, but have a variable expression of the protein that binds with the yellow marker. The ratio of yellow to red gives the efficiency of the uptake of the modified protein expression. This is of great use in quantifying issues in genetic studies. Department of Plant Sciences, University of Cambridge, Cambridge, United Kingdom