Toll like receptors known as pathogen-associated molecular pattern(PAMPs) recognize microbe-specific immune elicitors and play fundamental roles in pathogen recognition and the activation of innate immunity. To better understand the functions of Pt Toll-1 in Portunus trituberculatus, the ectodomain of Pt Toll-1 was sequenced and subcloned into the expression vector, and the expressed recombinant ectodomain of Pt Toll-1 was obtained. The polyclonal antibody against r Pt Toll-1 was obtained from immunized mic...