Light-responsive PyNAC90 orchestrates anthocyanin biosynthesis through combinatorial transcriptional activation and COP1-mediated degradation in pear
Chenhui Han, Zhaolong Xue, Guosong Chen, Yanfei Shan, Chenjie Yao, Yongqi Zhao, Bo Li, Yule Miao, Jiahao Zeng, Tianyu Wang, Guangyan Yang, Jun Wu · 2026
Read Light-responsive PyNAC90 orchestrates anthocyanin biosynthesis through combinatorial transcriptional activation and COP1-mediated degradation in pear by Chenhui Han, Zhaolong Xue, Guosong Chen, Yanfei Shan, Chenjie Yao, Yongqi Zhao, Bo Li, Yule Miao, Jiahao Zeng, Tianyu Wang, Guangyan Yang, Jun Wu (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13560111.txt.
Description
Chenhui Han and co-authors trace how light switches on red color in pear skin, in this 2026 plant study. The red tint comes from pigments called anthocyanins, a prized quality trait in fruit. Fruit kept in bags stays pale, and color rushes in once the bags come off and light hits the skin. Gene scans pointed to one switch, named PyNAC90, whose activity rose the longer the fruit sat in light.
Raising the switch's activity in pear tissue boosted pigment buildup, while silencing it held color back. The switch turns on pigment-making genes by teaming with partner proteins. A second protein, COP1, marks the switch for disposal, which keeps the system in balance. Together the parts form a light-sensing loop that times fruit coloring.
Catalog record
| CREATOR | Chenhui Han, Zhaolong Xue, Guosong Chen, Yanfei Shan, Chenjie Yao, Yongqi Zhao, Bo Li, Yule Miao, Jiahao Zeng, Tianyu Wang, Guangyan Yang, Jun Wu |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 48 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |