Pathogenicity and virulence of Ralstonia solanacearum species complex: Understanding its virulence mechanisms for proper management.

The phc QS regulatory network is a highly complex system that controls RSSC virulence throughout infection, from root invasion to xylem colonization.

• Why it matters: Understanding the mechanisms of RSSC pathogenicity is crucial for developing effective management strategies against bacterial wilt, which threatens global crop production and food security.
• What they did: The review summarizes current knowledge of RSSC virulence factors, resistance breeding, and host resistance genetics, and presents recent studies showing the dominance of the phc QS network in regulating gene expression during infection.
• The result: Identifying the role of the phc QS system advances understanding of RSSC virulence regulation and highlights key knowledge gaps, guiding future research and practical disease management approaches.