title: The cytokinin side chain commands shooting.
abstract: Functional distinction between structurally diverse cytokinins as essential plant hormones has remained enigmatic for decades. In this issue of Developmental Cell, Kiba et al. (2013) provide compelling evidence for the central role of CYP735A1/2 in synthesizing trans-hydroxylated cytokinins, which specify shoot growth, vital for energy and biomass production.
authors.affiliation: Department of Molecular Biology and Centre for Computational and Integrative Biology, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Genetics, Harvard Medical School, Boston, MA 02114, USA. Electronic address: sheen@molbio.mgh.hrvard.edu.
authors.forename: Jen
authors.initials: J
authors.lastname: Sheen
mesh_terms: D017360:Arabidopsis / Q000254:growth & development*; D029681:Arabidopsis Proteins / Q000235:genetics*; D003577:Cytochrome P-450 Enzyme System / Q000235:genetics*; D003583:Cytokinins / Q000737:chemistry*; D010937:Plant Growth Regulators / Q000032:analysis*; D018520:Plant Shoots / Q000254:growth & development*
chemical_list: D029681:Arabidopsis Proteins; D003583:Cytokinins; D010937:Plant Growth Regulators; D003577:Cytochrome P-450 Enzyme System; C492981:cytochrome P-450 735A1, Arabidopsis; C492982:cytochrome P-450 735A2, Arabidopsis