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Updated: Oct 22, 2025
Isolation and Characterization of Cyanobacterial Extracellular Vesicles
Published on: February 3, 2022
Isolation of Outer Membrane Vesicles from Phytopathogenic Xanthomonas campestris pv. campestris
Gideon Mordukhovich1,2, Ofir Bahar1
1Department of Plant Pathology and Weed Research, Agricultural Research Organization, Volcani Center, Rishon LeZion, Israel.
Abstract:
Gram-negative bacteria naturally release outer membrane vesicles (OMVs) to the surrounding environment. OMVs contribute to multiple processes, such as cell-cell communication, delivery of enzymes and toxins, resistance to environmental stresses and pathogenesis. Little is known about OMVs produced by plant-pathogenic bacteria, and their interactions with host plants. The protocol described below discusses the isolation process of OMVs from Xanthomonas campestris pv. campestris strain 33913, a bacterial pathogen of Crucifiers. Nevertheless, this protocol can be used and/or adapted for isolation of OMVs from other phytopathogenic bacteria to promote the study of OMVs in the context of plant-microbe interactions.
Insights
This study details a protocol for isolating outer membrane vesicles (OMVs) from the plant pathogen Xanthomonas campestris. This method aids in understanding bacterial outer membrane vesicles and their role in plant-microbe interactions.
Area of Science:
- Microbiology
- Plant Pathology
- Bacterial Pathogenesis
Background:
- Gram-negative bacteria release outer membrane vesicles (OMVs) involved in various cellular processes.
- OMVs play roles in bacterial pathogenesis, enzyme delivery, and environmental stress resistance.
- Knowledge regarding OMVs from plant-pathogenic bacteria and their host interactions is limited.
Purpose of the Study:
- To describe a protocol for isolating OMVs from the plant-pathogenic bacterium Xanthomonas campestris pv. campestris.
- To facilitate further research into the function and significance of OMVs in plant-microbe interactions.
Main Methods:
- Isolation of OMVs from Xanthomonas campestris pv. campestris strain 33913.
- Adaptable protocol for OMV isolation from diverse phytopathogenic bacteria.
Main Results:
- A reproducible protocol for OMV isolation from X. campestris was established.
- The protocol's adaptability for other plant pathogens was highlighted.
Conclusions:
- The described protocol enables the isolation of OMVs from phytopathogenic bacteria.
- This method supports the investigation of OMVs in plant-pathogen interactions and bacterial virulence.
