Agrobacterium tumefaciens
Research Article | SpotlightAgrobacterium tumefaciens Deploys a Versatile Antibacterial Strategy To Increase Its Competitiveness...The T6SS encodes multiple effectors with diverse functions, but little is known about the biological significance of harboring such a repertoire of effectors. We reported that the T6SS antibacterial activity of the plant pathogen Agrobacterium tumefaciens can be enhanced under carbon starvation or when recipient cell wall peptidoglycan is disturbed.
CommentaryShort, Rich, and Powerful: a New Family of Arginine-Rich Small Proteins Have Outsized Impact in Agrobacterium tumefaciensDue to minute size and limited sequence complexity, small proteins can be challenging to identify but are emerging as important regulators of diverse processes in bacteria. In this issue of the Journal of Bacteriology, Kraus and coworkers (A. Kraus, M. Weskamp, J. Zierles, M. Balzer, et al., J Bacteriol 202:e00309-20, 2020, https://doi.org/10.1128/JB.00309-20) report a...
Research ArticleEnzymatic and Mutational Analysis of the PruA Pteridine Reductase Required for Pterin-Dependent Control of Biofilm Formation in Agrobacterium tumefaciensBiofilms are complex multicellular communities that are formed by diverse bacteria. In the plant pathogen Agrobacterium tumefaciens, the transition from a free-living motile state to a nonmotile biofilm state is governed by a novel signaling pathway involving small molecules called pterins. The involvement of pterins in biofilm formation is unexpected and prompts many...
Research ArticleThe RNase YbeY Is Vital for Ribosome Maturation, Stress Resistance, and Virulence of the Natural Genetic Engineer Agrobacterium tumefaciensAlthough ybeY gene belongs to the universal bacterial core genome, its biological function is incompletely understood. Here, we show that YbeY is critical for fitness and host-microbe interaction in the plant pathogen Agrobacterium tumefaciens. Consistent with the reported endoribonuclease activity of YbeY,...
Research ArticleMultiple Flagellin Proteins Have Distinct and Synergistic Roles in Agrobacterium tumefaciens MotilityFlagellins are abundant bacterial proteins comprising the flagellar filaments that propel bacterial movement. Several members of the alphaproteobacterial group express multiple flagellins, in contrast to model systems, such as with Escherichia coli, which has one type of flagellin. The plant pathogen ...