Copyright © 2013, American Society for Microbiology. All Rights Reserved The complete bacteriophage TP901-1 virion is pictured infecting a Lactococcus lactis cell. The distal tail organelle (baseplate, light blue and red) mediates host recognition and attachment. Picture by Ludovic Autin and Adam Gardner (Department of Molecular Biology, The Scripps Research Institute, La Jolla, CA). Jan 2013, vol. 87, no. 2, p. 1061.