AUTHOR=Mukhopadhyay Biswarup TITLE=A reminder—peptidoglycan cell walls indeed occur in the archaeal domain, specifically in the members of Methanobacteria and Methanopyri classes JOURNAL=Frontiers in Microbiology VOLUME=15 YEAR=2024 URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2024.1329047 DOI=10.3389/fmicb.2024.1329047 ISSN=1664-302X