Biphasic control of cell expansion by auxin coordinates etiolated seedling development
Minmin Du, Firas Bou Daher, Yuanyuan Liu, Andrew J. Steward, Molly Tillmann, Xiaoyue Zhang, Jeh Haur Wong, Hong Yu Ren, Jerry D. Cohen, Chuanyou Li, William M. Gray
Abstract
-ATPase activity across the hypocotyl that contributes to the differential cell elongation underlying hook development. Subsequently, auxin concentrations decline acropetally and switch from restraining to promoting elongation, thereby driving hypocotyl elongation. Our findings demonstrate how differential auxin concentrations throughout the hypocotyl coordinate etiolated development, leading to successful soil emergence.
Topics & Concepts
EtiolationSeedlingAuxinCell biologyBiologyControl (management)BotanyChemistryComputer scienceBiochemistryEnzymeArtificial intelligenceGenePlant Molecular Biology ResearchPlant tissue culture and regenerationPlant Reproductive Biology