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Figure 1. 

Changes in the appearance, morphology, and lesion diameter of kiwifruit in the SHAM and CK groups induced by Botrytis cinerea at different days postinfection. (a) Changes in the morphological characteristics of kiwifruit at 0, 1, 3, and 5 d post infection (dpi). (b) Changes in the lesion diameter in kiwifruit in the SHAM and CK groups at different time points. '**' represents extremely significantly different (p < 0.01).

Figure 2. 

(a) Venn diagram of differentially expressed genes (DEGs) between different groups (S_24h vs S_0h, S_72h vs S_0h, and S_120h vs S_0h). (b)–(e) Volcano plots of DEGs in different samples. Each dot represents a DEG. Red and green represent significantly up and downregulated DEGs.

Figure 3. 

(a)–(c) Analysis of enriched metabolic pathways in three groups. The top 20 most significant metabolic pathways (based on the p-values) are depicted, with each bubble representing a metabolic pathway. The size of the bubble represents the amount of metabolites in the pathway, as assessed through topological analysis. The color of the bubble represents the p-value of the enrichment analysis (i.e., −log10 p-value); the darker the color, the smaller the p value and the more significant the degree of enrichment.

Figure 4. 

Diagram showing the important KEGG pathways.

Figure 5. 

qRT-PCR analysis of nine genes enriched for plant disease resistance pathways. CEY00_Acc00618: EIN3-binding F-box protein; CEY00_Acc11227: Caffeoyl-CoA O-methyltransferase; CEY00_Acc16583: Trans-cinnamate 4-monooxygenase; CEY00_Acc20943: Phenylalanine ammonia-lyase; CEY00_Acc22367: Mitogen-activated protein kinase; CEY00_Acc23338: Cytokinin dehydrogenase; CEY00_Acc24966: Chalcone synthase; CEY00_Acc27491: Ethylene receptor like; CEY00_Acc29568: Shikimate O-hydroxycinnamoyltransferase. '*' represents significantly different (p < 0.05), '**' represents extremely significantly different (p < 0.01).