AUTHOR=Liu Weiwei , Fan Xinpeng , Jung Jae-Ho , Grattepanche Jean-David TITLE=Editorial: Ciliates: Key Organisms in Aquatic Environments JOURNAL=Frontiers in Microbiology VOLUME=13 YEAR=2022 URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2022.880871 DOI=10.3389/fmicb.2022.880871 ISSN=1664-302X