To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie S4. Time-lapse microscopy of A. tumefaciens expressing PopZAt-GFP. PopZ identifies the new pole, and PodJ identifies the old pole during polar growth in Agrobacterium tumefaciens Romain Grangeon, John R. Zupan, James Anderson-Furgeson, and Patricia C. Zambryski PNAS. 2015. DOI: 10.1073/pnas.1515544112 Download Original Video Browse All Videos »