BIOL 103 Lecture Notes - Lecture 16: Hemolymph, Hemoglobin, Signal Transduction
20 Jun 2016
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Document Summary
Plants have an immune system that works both intracellularly and extracellularly. Inside the plant, there are receptors for foreign antigens called r-receptors. These r- receptors are specific to a particular virus. Once the right virus binds to the receptor, the receptors will change its conformation. A cascade occurs that leads to signal transduction, releasing of peptide hormone->effector. Effectors such as salicylic acid travels through the plant"s circulatory system to protect the other leaf: extracellularly: Effectors such as salicylic acid that methylate become volatile. This releases a wintergreen signal which in turn gives the plants surrounding an immune response to the specific pathogen within hours. *innate because the plant must have the right gene that recognizes the specific virus for this immune response to occur. Phagocytic hemocytes make the insect"s immune response more effectively because once the insect detects one pathogen ex: e. coli, it will increase the production of its phagocytic cells which will engulf.
