Article
Brassinosteroid production and signaling differentially control cell division and expansion in the leaf.
The New phytologist - 1 Jan 2013
Zhiponova Miroslava K, Vanhoutte Isabelle, Boudolf Véronique, Betti Camilla, Dhondt Stijn, Coppens Frederik, Mylle Evelien, Maes Sara, González-García Mary-Paz, Caño-Delgado Ana I, Inzé Dirk, Beemster Gerrit T S, De Veylder Lieven, Russinova Eugenia
Abstract excerpt
Brassinosteroid (BR) hormones control plant growth through acting on both cell expansion and division. Here, we examined the role of BRs in leaf growth using the Arabidopsis BR-deficient mutant constitutive photomorphogenesis and dwarfism (cpd). We show that the reduced size of cpd leaf blades is a result of a decrease in cell size and number, as well as in venation length and complexity. Kinematic growth...
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