Ethylene mediates the branching of the jasmonate‐induced flavonoid biosynthesis pathway by suppressing anthocyanin biosynthesis in red Chinese pear fruits

• DOI: 10.1111/pbi.13287
• Publication Date: 2019-11-01T21:04:06Z
• Authors: Junbei Ni; Yuan Zhao; Ruiyan Tao; Lei Yin; Ling Gao; Åke Strid; Minjie Qian; Juncai Li; Yuanjun Li; Jiaqi Shen; Yuanwen Teng; Songling Bai
• Keywords: Jasmonate; Methyl jasmonate; Flavonoid Biosynthesis

Summary Flavonoid accumulation in most fruits is enhanced by ethylene and jasmonate. However, little known about the hormone functions related to red pear fruit coloration or their combined effects potential underlying mechanisms. Various treatments were used investigate flavonoid metabolite profile transcriptome verify of jasmonate on biosynthesis as well mechanism behind this. Ethylene inhibits anthocyanin Chinese fruits, whereas increases flavone/isoflavone biosyntheses. The branching jasmonate‐induced pathway determined ethylene. Co‐expression network Mfuzz analyses revealed 4,368 candidate transcripts. Additionally, suppresses PpMYB10 PpMYB114 expression via TF repressors, ultimately decreasing biosynthesis. Jasmonate induces through transcriptional post‐translational regulation TFs‐like MYB bHLH absence associated signalling pear, thereby production, increasing availability precursors for enhancing deep yellow coloration. We herein present new phenotypes regulatory patterns controlled ethylene, confirm that complex.