Figure 4. Current view of the regulation of herbivory-induced phenolamide biosynthesis in N. attenuata as mediated by the core jasmonic acid biosynthetic and transcriptional pathway.
MAPK signaling and interactions among other hormonal signaling networks shape the amplitude of the jasmonate bursts and downstream signaling. The role of ethylene in cross-regulating polyamine metabolism has yet to be rigorously investigated. Specific JAZ proteins inhibiting MYB8 transcription are not yet known. MYB8 regulates induced changes in the core phenylpropanoid pathway and DH29, CV86, AT1 and yet unknown phenolamide-forming N-acyltransferases.