Abstract
Although recent works have suggested that plant has the innate immunity system to lipopolysaccharide (LPS), a major constituent of outer membrane of gram-negative bacteria, none of the molecules consisting of the LPS recognition mechanism have been identified. On the other hand, the LPS recognition mechanism in animal has been well studied. LBP is known to bind and transfer LPS to LPS receptor. In this study, we focused on two A. thaliana LBP-related genes (AtLBP1 and AtLBP2) and investigated and discussed the relationships between AtLBPs and LPS-induced innate immune responses of plant.
During the course of this study, we found the LPS-induced seedling growth inhibition. We analyzed the effects of several kinds of elicitors on plant growth and discussed unidentified LPS receptor in plant.
