Identification of Fungal Pathogens to Control Postharvest Passion Fruit (Passiflora edulis) Decays and Multi-Omics Comparative Pathway Analysis Reveals Purple Is More Resistant to Pathogens than a Yellow Cultivar

文献类型： 外文期刊

第一作者： Rizwan, Hafiz Muhammad

作者： Rizwan, Hafiz Muhammad;Yang Qiang;Yousef, Ahmed Fathy;Munir, Nigarish;Oelmueller, Ralf;Chen, Faxing;Lin Zhimin;Harsonowati, Wiwiek;Waheed, Abdul;Yousef, Ahmed Fathy;Wei, Xiaoxia;Scholz, Sandra S.;Oelmueller, Ralf;Reichelt, Michael

作者机构：

关键词： disease management; ITS-rDNA sequence; metabolic profiling; pathogenic fungi; transcriptomics

期刊名称：JOURNAL OF FUNGI （ 影响因子：5.816； 五年影响因子：6.499 ）

ISSN：

年卷期： 2021 年 7 卷 10 期

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收录情况： SCI

摘要： Production of passion fruit (Passiflora edulis) is restricted by postharvest decay, which limits the storage period. We isolated, identified, and characterized fungal pathogens causing decay in two passion fruit cultivars during two fruit seasons in China. Morphological characteristics and nucleotide sequences of ITS-rDNA regions identified eighteen isolates, which were pathogenic on yellow and purple fruit. Fusarium kyushuense, Fusarium concentricum, Colletotrichum truncatum, and Alternaria alternata were the most aggressive species. Visible inspections and comparative analysis of the disease incidences demonstrated that wounded and non-wounded yellow fruit were more susceptible to the pathogens than the purple fruit. Purple cultivar showed higher expression levels of defense-related genes through expression and metabolic profiling, as well as significantly higher levels of their biosynthesis pathways. We also found fungi with potential beneficial features for the quality of fruits. Our transcriptomic and metabolomics data provide a basis to identify potential targets to improve the pathogen resistance of the susceptible yellow cultivar. The identified fungi and affected features of the fruit of both cultivars provide important information for the control of pathogens in passion fruit industry and postharvest storage.

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