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A DELLA in Disguise: SPATULA Restrains the Growth of the Developing Arabidopsis Seedling[C][W]

By Eve-Marie Josse, Yinbo Gan, Jordi Bou-Torrent, Kelly L. Stewart, Alison D. Gilday, Christopher E. Jeffree, Fabián E. Vaistij, Jaime F. Martínez-García, Ferenc Nagy, Ian A. Graham and Karen J. Halliday

Abstract

This study examines the role of the PHYTOCHROME INTERACTING FACTOR3 homolog SPATULA (SPT) in the control of the developing seedling and shows that SPT is a potent regulator of cotyledon size, acting in parallel to DELLAs. As DELLAs negatively regulate SPT abundance, the light regulation of DELLAs drives the DELLA-SPT counterbalance, enforcing growth restraint across a range of ambient light conditions that are prevalent in nature

Topics: Research Articles
Publisher: American Society of Plant Biologists
OAI identifier: oai:pubmedcentral.nih.gov:3101537
Provided by: PubMed Central
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