Fig. 7

Proposed model for pepper (A204 and A198) roots in response to P. capsici infection. The blue and cyan dotted arrows represent strong and weak signal transduction, respectively. ABA, abscisic acid; CaM, calmodulin; CesA, cellulose synthase; CHI, chalcone isomerase; CHS, chalcone synthase; DFR, dihydroflavonol reductase; ET, ethylene; ETI, effector-triggered immunity; F3H, flavanone 3-hydroxylase; F3’5’H, flavonoid 3’,5’-hydroxylase; HR, hypersensitive response; ISR, induced systemic resistance; JA, jasmonic acid; LRR, leucine-rich repeat; PCD, programmed cell death; POD, peroxidase; PRP, proline-rich protein; PR1, pathogenesis-related protein 1; PR2, endo-1,3(4)-beta-glucanase; PR3 and PR4, chitinase; PTI, pattern-recognition receptor (PRR)-triggered immunity; ROS, reactive oxygen species; SA, salicylic acid; SAR, systemic acquired resistance; SBT, subtilisin-like proteases; XCP1, xylem cysteine proteinase 1