Genomic analysis reveals methylation pathways of phenylphenalenone phytoalexins in Musella lasiocarpa, highlighting targets to improve disease resistance in commercial bananas.
Phenylphenalenones (PhPNs), phytoalexins in wild bananas (Musaceae), are known to act against various pathogens. However, the abundance of PhPNs in many Musaceae plants of economic importance is low. Knowledge of the biosynthesis of PhPNs and the application of biosynthetic approaches to improve their yield is vital for fighting banana diseases. However, the processes of PhPN biosynthesis, especially those involved in methylation modification, remain unclear.
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Zhao et al. (2024) studied this question.
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