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Plants live in fixed locations and survive adversity by integrating growth responses to diverse environmental signals. Here, we show that the nuclear-localized growth-repressing DELLA proteins of Arabidopsis integrate responses to independent hormonal and environmental signals of adverse conditions. The growth restraint conferred by DELLA proteins is beneficial and promotes survival. We propose that DELLAs permit flexible and appropriate modulation of plant growth in response to changes in natural environments.

Original publication

DOI

10.1126/science.1118642

Type

Journal article

Journal

Science

Publication Date

06/01/2006

Volume

311

Pages

91 - 94

Keywords

Abscisic Acid, Arabidopsis, Arabidopsis Proteins, Ethylenes, Flowers, Genes, Plant, Gibberellins, Mutation, Nuclear Proteins, Plant Growth Regulators, Plant Proteins, Plant Roots, Signal Transduction, Sodium Chloride, Transcription Factors, Transcription, Genetic