Integrated multi-omics identifies plant hormone signal transduction and phenylpropanoid biosynthesis as key pathways in kiwifruit (Actinidia chinensis var. deliciosa) resistance to Botryosphaeria Dothidea infection.

ABSTRACT:

Background

Soft rot, a devastating fungal disease, severely impacts kiwifruit during postharvest storage, causing substantial fruit damage and rendering the fruit inedible. Botryosphaeria dothidea (B. dothidea) is the primary pathogen causing kiwifruit soft rot, but its pathogenic mechanism remains unclear.

Results

In this study, morphological observation, transcriptome sequencing, and untargeted metabolomics were employed to analyze the changes in 'Jinkui' kiwifruit after artificial inoculation with B. dothidea. The results showed that obvious lesions began to appear on the fruit surface at 72 h post-inoculation (hpi) with B. dothidea, and the peel rot initiated at 120 hpi. Transcriptome sequencing revealed a significantly higher number of differentially expressed genes (DE

SUBMITTER: Ye L 

PROVIDER: S-EPMC12532962 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature