The predation strategy of Myxococcus xanthus
Microbiology Seminar Series
- Date: Apr 4, 2022
- Time: 01:15 PM (Local Time Germany)
- Speaker: Dr. Christine Kaimer
- Ruhr Universität Bochum, Department for Biology and Biotechnology, Microbial Biology
- Location: MPI for Terrestrial Microbiology
- Room: Lecture hall
- Host: Dr. Andreas Diepold
- Contact: firstname.lastname@example.org
Predation shapes interbacterial interactions in different habitats, but we know little about its molecular mechanisms. We investigate predation mechanisms in the myxobacterium Myxococcus xanthus, which feeds on a broad range of microorganisms in soil.
Comparing different bacteriolytic properties of M. xanthus, we found that an unkown, cell-contact dependent mechanism is used to kill Gram positive and Gram negative bacteria. This involves the concerted action of two protein secretion systems, which accumulate at the predator-prey interface. These secretion systems mediate cell death and lysis, respectively, and are both required for M. xanthus to extract nutrients from prey.