BRASSINOSTEROID INSENSITIVE2 negatively regulates cellulose synthesis in Arabidopsis by phosphorylating cellulose synthase 1
Research output: Contribution to journal › Journal article › Research › peer-review
The deposition of cellulose is a defining aspect of plant growth and development, but regulation of this process is poorly understood. Here, we demonstrate that the protein kinase BRASSINOSTEROID INSENSITIVE2 (BIN2), a key negative regulator of brassinosteroid (BR) signaling, can phosphorylate Arabidopsis cellulose synthase A1 (CESA1), a subunit of the primary cell wall cellulose synthase complex, and thereby negatively regulate cellulose biosynthesis. Accordingly, point mutations of the BIN2-mediated CESA1 phosphorylation site abolished BIN2-dependent regulation of cellulose synthase activity. Hence,we have uncovered a mechanism for how BR signaling can modulate cellulose synthesis in plants.
Original language | English |
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Journal | Proceedings of the National Academy of Sciences of the United States of America |
Volume | 114 |
Issue number | 13 |
Pages (from-to) | 3533-3538 |
Number of pages | 6 |
ISSN | 0027-8424 |
DOIs | |
Publication status | Published - 2017 |
Externally published | Yes |
- Brassinosteroid, Cellulose synthase, Plant cell wall, Protein kinase, Regulation
Research areas
ID: 273064824