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. 2021 Oct 11;8:225. doi: 10.1038/s41438-021-00701-0

Fig. 4. Overexpression of MdWRKY75e enhanced A. alternata infection in transgenic apple.

Fig. 4

a Time course of A. alternata infection of WT, V#10, and MdWRKY75e transgenic lines (#1, #8, and #12) for 48 h for phenotype analysis. b Time course of A. alternata infection of WT, V#10, and MdWRKY75e transgenic lines for 48 h for disease index analysis. c Phenotypes of paraffin sections of leaves infected with A. alternata at 0 and 24 h in WT, V#10, and MdWRKY75e transgenic lines. UEP upper epidermis, EP epidermis, and MY mycelium. d, e Time course of the expression of Alta1 (d) and GAPdh (e) genes in WT, V#10, and MdWRKY75e transgenic lines under A. alternata infection for 48 h. GAPdh and Alta1 in the internal transcribed spacer region sequences of Alternaria species can be used as marker genes for the severity of A. alternata apple pathotype infection40. WT: wild-type; V#10: empty vector; and MdWRKY75e#1, MdWRKY75e#8, and MdWRKY75e#12: MdWRKY75e transgenic lines