Zhaoxin Peng, Lizhi Song, Minghua Chen, Zeyang Liu, Ziyu Yuan, Huan Wen, Haipeng Zhang, Yue Huang, Zhaowen Peng, Hongbin Yang, Gu Li, Huixian Zhang, Zhehui Hu, Wenyun Li, Xia Wang, Robert M Larkin, Xiuxin Deng, Qiang Xu, Jiajing Chen, Juan Xu
Polymethoxyflavones (PMFs) are a class of abundant specialized metabolites with remarkable anticancer properties in citrus. Multiple methoxy groups in PMFs are derived from methylation modification catalyzed by a series of hydroxylases and O -methyltransferases (OMTs). However, the specific OMTs that catalyze the systematic O -methylation of hydroxyflavones remain largely unknown. Here, we report that PMFs are highly accumulated in wild mandarins and mandarin-derived accessions, while undetectable in early-diverging citrus species and related species...
April 2, 2024: Proceedings of the National Academy of Sciences of the United States of America