BRASSINOSTEROID INSENSITIVE2 negatively regulates cellulose synthesis in Arabidopsis by phosphorylating cellulose synthase 1
2017 ◽
Vol 114
(13)
◽
pp. 3533-3538
◽
Keyword(s):
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.
2017 ◽
Vol 376
(2112)
◽
pp. 20170048
◽
2014 ◽
Vol 65
(1-2)
◽
pp. 17-24
◽
2021 ◽
Vol 118
(30)
◽
pp. e2021790118
Keyword(s):
1989 ◽
Vol 47
◽
pp. 1024-1025
Keyword(s):
Keyword(s):