ABSTRACT Invasive pathogens interface with the host and its resident microbiota through interkingdom signaling. The bacterial receptor QseC. which is a membrane-bound histidine sensor kinase. responds to the host stress hormones epinephrine and norepinephrine and the bacterial signal AI-3. https://www.poolsproductscanadas.shop/product-category/raypak-pr206-406-heater-parts/