Former undergraduate Sid Bush is the lead author on primarily undergraduate research from the lab—a collaboration among 8 current and former undergraduates and former grad student Chris Hamm. This team did a huge amount of work over the years to show that different strains of B. subtilis with different complements of RsbR paralogs in the stressosome display differing fitness in co-culture under different stress conditions. A primary finding of the paper is that RsbRA-only cells, whose sigma-B response resembles the wild type, outcompete other single-RsbR strains under ethanol stress but have a fitness deficit under NaCl stress, while the opposite is true of RsbRD-only cells. The paper is available in ASM's open-access mSphere journal at https://doi.org/10.1128/msphere.00719-23. An image from their paper also made the cover for that issue of mSphere! Congratulations to Sid, Shelby, Nick, Chris, Madeline, Sarah, Emily, AnaLisa, Nick, and Jake!