This protocol focuses on the use of flow cytometry and counting beads to quantify bacterial spores labeled with ethidium bromide. The method is also efficient for analyzing the covalent coupling of proteins on the surface of intact spores.
Alves, K. C., Chaves, Y. O., Almeida, M. E., Vasconcelos, M. G., Nogueira, P. A., Melo, J., Marques, J., Zuliani, J. P., Boeno, C. N., Paloschi, M. V., Isticato, R., Ricca, E., Mariúba, L. A. Improvement of Bacillus subtilis Spore Enumeration and Label Analysis in Flow Cytometry. J. Vis. Exp. (196), e65141, doi:10.3791/65141 (2023).