Labonté, J.M., E.K. Field, M. Lau, D. Chivian, E. van Heerden, K.E. Wommack, T.L. Kieft, T.C. Onstott, and R. Stepanauskas. 2015. “Single Cell Genomics Indicates Horizontal Gene Transfer and Viral Infections in a Deep Subsurface Firmicutes Population”. Frontiers in Microbiology 6. doi:10.3389/fmicb.2015.00349.

Beam, J.P., E.D. Becraft, J.M. Brown, F. Schulz, J.K. Jarett, O. Bezuidt, N.J. Poulton, et al. 2020. “Ancestral Absence of Electron Transport Chains in Patescibacteria and DPANN”. Frontiers in Microbiology 11. doi:10.3389/fmicb.2020.01848.