Identification and characterization of a gibberellin-regulated protein, which is ASR5, in the basal region of rice leaf sheaths.

Molecular Genetics and Genomics : MGG
Hironori TakasakiSetsuko Komatsu

Abstract

Gibberellins (GAs) regulate growth and development in higher plants. To identify GA-regulated proteins during rice leaf sheath elongation, a proteomic approach was used. Proteins from the basal region of leaf sheath in rice seedling treated with GA(3) were analyzed by fluorescence two-dimensional difference gel electrophoresis. The levels of abscisic acid-stress-ripening-inducible 5 protein (ASR5), elongation factor-1 beta, translationally controlled tumor protein, fructose-bisphosphate aldolase and a novel protein increased; whereas the level of RuBisCO subunit binding-protein decreased by GA(3) treatment. ASR5 out of these six proteins was significantly regulated by GA(3) at the protein level but not at the mRNA level in the basal region of leaf sheaths. Since this protein is regulated not only by abscisic acid but also by GA(3), these results indicate that ASR5 might be involved in plant growth in addition to stress in the basal regions of leaf sheaths.

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Citations

Jan 11, 2013·Plant Physiology·Pia Guadalupe DominguezFernando Carrari
Oct 3, 2013·Plant Cell Reports·Jorge Pérez-DíazJosé A Casaretto
Feb 18, 2014·Planta·Rodrigo M González, Norberto D Iusem
May 11, 2010·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Romain PhilippeDominique This
Jul 18, 2015·Plant Cell Reports·Lauro Bücker NetoMárcia Margis-Pinheiro
Jun 9, 2012·Plant, Cell & Environment·Rafael Augusto ArenhartMárcia Margis-Pinheiro
Nov 25, 2020·Plant Physiology and Biochemistry : PPB·Jin Seok YoonYong Weon Seo

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