The wormsorter facilitates genetic screens in Caenorhabditis elegans by sorting worms according to expression of fluorescent reporters. Here, we describe a new usage: sorting according to colonization by a GFP-expressing pathogen, and we employ it to examine the poorly understood role of pathogen recognition in initiating immune responses.
Twumasi-Boateng, K., Berg, M., Shapira, M. Automated Separation of C. elegans Variably Colonized by a Bacterial Pathogen. J. Vis. Exp. (85), e51090, doi:10.3791/51090 (2014).