The Receptor Kinase BRI1 promotes cell proliferation in Arabidopsis by phosphorylation- mediated inhibition of the growth repressing peptidase DA1.
H. Dong, C. Smith, R. Prior, R. Carter, J. Dumenil, G. Saalbach, N. McKenzie, M. W. Bevan
The paper shows BRI1 phosphorylates DA1 to inhibit its growth-repressing activity, maintaining cell proliferation during leaf growth in Arabidopsis.
bioRxiv · May 15, 2020 · PreprintPlant Biology