Skip to main content
. 2017 Nov 21;17:214. doi: 10.1186/s12870-017-1150-z

Fig. 12.

Fig. 12

Simplified working model of the role of BpbHLH9 in hormone-induced triterpenoid synthesis in Betula platyphylla. BpbHLH9 is induced by ABA/MeJA but repressed by ABA/ethylene. BpbHLH9 interacts with MYB to induce BpSS expression by binding the G-box cis-elements of the BpSS promoter, which subsequently regulates triterpenoid synthesis