Figure 6
Schematic representation of the response of the resistant Cavendish banana mutant ‘Nongke No 1’ against Fusarium oxysporum f. sp. cubense tropical race 4 (Foc TR4), adapted from D. Hofius et al. (2007). The banana plant uses two strategies to respond to Foc TR4 attacks: PTI and ETI. The up-regulated PRRs include CEBIP and FLS2-like protein, and MAPK 5 and 12. Certain MEKK 2-like genes were also up-regulated, while MAPK 2, 6 and 10, MEK 4/5 and some MEKK 2-like genes were down-regulated. The up-regulated transcription factors include WRKY 6, 26, 31, 33, 65 and 72, and certain ERF-genes, while WRKY 56 and 75, BHLH 30, 25, 35 and 18, BIM 1 and 2, and HBP 1a were negative regulators. Except for the Ca2+ channel, ion fluxes also include potassium channel, Cl-channel (clc), and H+-transporting ATPases. Dotted lines and question marks represent uncertain and unknown pathways, respectively.