The Mla system and its role in maintaining outer membrane barrier function in <i>Stenotrophomonas maltophilia</i>.

"Conflict of interest The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. The author(s) declared that they were an editorial board member of Frontiers, at the time of submission. This had no impact on the peer review process and the final decision."

"The author(s) declare financial support was received for the research, authorship, and/or publication of this article. This work was funded by the Spanish MICINN (PID2019-111364RB-I00). Authors also thank Catalan AGAUR (2017 SGR1062 and 2021 SGR00092). UM and US acknowledge support from the Leibniz Association (grant SAS-2021-1-FZB of the Leibniz Research Alliance INFECTIONS in an Urbanizing World -Humans, Animals, Environments). WS acknowledge funding from UHH."