AUTHOR=Pátek Miroslav , Manganelli Riccardo , Toyoda Koichi TITLE=Editorial: Role of sigma factors of RNA polymerase in bacterial physiology, volume II JOURNAL=Frontiers in Microbiology VOLUME=14 YEAR=2023 URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2023.1220519 DOI=10.3389/fmicb.2023.1220519 ISSN=1664-302X