image: Arabidopsis plant shoot tips, showing expression of a chaperonin protein fused to the yellow fluorescent protein. Green areas are stem-cell rich regions that express the chaperonin protein. The report by Xu et al. shows that this protein is required for stem cell maintenance in plant shoots, and functions by promoting the cell to cell trafficking of a plant transcription factor. This image relates to an article that appeared in the Aug. 26, 2011, issue of Science, published by AAAS. The study, by Dr. X. Morgan Xu of Cold Spring Harbor Laboratory in Cold Spring Harbor, NY, and colleagues was titled, "Chaperonins Facilitate KNOTTED1 Cell-to-Cell Trafficking and Stem Cell Function.” view more
Credit: Image courtesy of Morgan Xu and David Jackson