Round 1: The authors develop and analyze a model for the dynamics of filamentous bacteria gliding in two dimensions.
In this model, the density of cells is assumed to be constant. However, the timescale of the simulations is comparable to the doubling time of many bacteria. Because cell density is found to R6 be important in determining the morphology of communities, I suspect that reproduction is important in understanding the patterns. This point might be worth addressing in the text.