Can anyone suggest common housekeeping genes or stress/adhesion genes common to all bacteria that can be used to quantify and compare stress due to any external factor between different bacterial species?
gyrA, is a commonly used house keeping gene for the bacilus species study. Check the below article if it will be useful for you.
Nabi, B., Kumawat, M., Ahlawat, N. et al. Molecular, Structural, and Functional Diversity of Universal Stress Proteins (USPs) in Bacteria, Plants, and Their Biotechnological Applications. Protein J 43, 437–446 (2024). https://doi.org/10.1007/s10930-024-10192-2