Authors
Meng Xie, Wellington Muchero, Anthony C Bryan, Kelsey Yee, Hao-Bo Guo, Jin Zhang, Timothy J Tschaplinski, Vasanth R Singan, Erika Lindquist, Raja S Payyavula, Jaime Barros-Rios, Richard Dixon, Nancy Engle, Robert W Sykes, Mark Davis, Sara S Jawdy, Lee E Gunter, Olivia Thompson, Stephen P DiFazio, Luke M Evans, Kim Winkeler, Cassandra Collins, Jeremy Schmutz, Hong Guo, Udaya Kalluri, Miguel Rodriguez, Kai Feng, Jin-Gui Chen, Gerald A Tuskan
Publication date
2018/7/1
Journal
The Plant Cell
Volume
30
Issue
7
Pages
1645-1660
Publisher
American Society of Plant Biologists
Description
Long-lived perennial plants, with distinctive habits of inter-annual growth, defense, and physiology, are of great economic and ecological importance. However, some biological mechanisms resulting from genome duplication and functional divergence of genes in these systems remain poorly studied. Here, we discovered an association between a poplar (Populus trichocarpa) 5-enolpyruvylshikimate 3-phosphate synthase gene (PtrEPSP) and lignin biosynthesis. Functional characterization of PtrEPSP revealed that this isoform possesses a helix-turn-helix motif in the N terminus and can function as a transcriptional repressor that regulates expression of genes in the phenylpropanoid pathway in addition to performing its canonical biosynthesis function in the shikimate pathway. We demonstrated that this isoform can localize in the nucleus and specifically binds to the promoter and represses the expression of a …
Scholar articles
M Xie, W Muchero, AC Bryan, K Yee, HB Guo, J Zhang… - The Plant Cell, 2018