Oxidative stress-induced proteolytic activation of polyphenol oxidase triggers an oxidized flavonoids-mediated stress signaling in Camellia sinensis
Sumanta Mohapatra, Anand Mishra, Shagun Bali, Ritu Godara, Twinkle Twinkle, Anil Kumar V, Ravi Shankar Kumar, Neeraj Kumar, Pawan Kumar, Vishal Acharya, Vivek Dogra
This study identifies oxidative stress-induced proteolytic activation of polyphenol oxidase (PPO) in Camellia sinensis, leading to oxidized flavonoid-mediated stress signaling and programmed cell death.
bioRxiv · Sep 23, 2025 · PreprintPlant Biology