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Updated: Oct 30, 2025

Visualizing Cellular Gibberellin Levels Using the nlsGPS1 Förster Resonance Energy Transfer (FRET) Biosensor
Published on: January 12, 2019
New insights into gibberellin signaling in regulating plant growth-metabolic coordination
Kun Wu1, Hao Xu1, Xiuhua Gao1
1State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing, 100101, China.
Abstract:
The Green Revolution of the 1960s boosted cereal crop yields in part through widespread adoption of semi-dwarf plant varieties, many of which were later found to have mutations in either gibberellins (GAs) homeostasis or DELLA proteins. GA is essential for plant growth and developmental regulation and plays an important role in improving crop plant architecture for enhanced grain yield under high nitrogen conditions. A complex regulatory network governs the spatially and temporally controlled genes expression through integrative GA signaling in response to multiple endogenous and environmental cues. In this review, we summarize current advances in understanding the molecular mechanisms of DELLA-dependent and DELLA-independent GA signaling pathways and their contributions to plant developmental and metabolic adaptations to changes in nitrogen availability. The progress in molecular understanding of the plant growth-metabolic coordination will facilitate breeding strategies for future sustainable agriculture and a new Green Revolution.
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