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Related Concept Videos

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Plant cells communicate to coordinate their cycle of growth, flowering and fruiting, and activities in roots, shoots, and leaves in response to the changing environmental conditions. Plant signaling is distinct from animal signaling. Plants primarily utilize enzyme-linked receptors, whereas the largest class of cell-surface receptors in animals are G-protein coupled receptors (GPCRs). Unlike animals, receptor tyrosine kinases are rare in plants. Instead, plants have a diverse class of...
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Related Experiment Video

Updated: Feb 24, 2026

Measuring Gene Expression in Bombarded Barley Aleurone Layers with Increased Throughput
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Exploiting DELLA Signaling in Cereals.

Karel Van De Velde1, Philip Ruelens2, Koen Geuten2

  • 1R&D Innovation Center, Bayer CropScience, Technologiepark 38, Ghent, Belgium; Laboratory of Functional Plant Biology, Department of Biology, Ghent University, K.L. Ledeganckstraat 35, Ghent, Belgium.

Trends in Plant Science
|August 28, 2017
PubMed
Summary

Green Revolution crops like rice and wheat saw yield boosts from DELLA proteins. This review focuses on DELLA protein functions in cereals to improve crop yields.

Keywords:
DELLAcerealsgibberellins (GA)hormone signalingprotein interactions

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Area of Science:

  • Plant Biology
  • Genetics
  • Agricultural Science

Background:

  • The Green Revolution achieved significant yield increases in rice and wheat, partly through modulating gibberellin (GA) pathways, leading to DELLA protein accumulation.
  • While DELLA protein roles in *Arabidopsis thaliana* are well-studied, their regulation of downstream responses in cereal crops remains largely unexplored.
  • Phylogenetic analysis reveals cereal-specific DELLA-related proteins (DGLLAs), distinct from those in *Arabidopsis*, highlighting unique regulatory mechanisms in cereals.

Purpose of the Study:

  • To shift the focus of DELLA functional research towards cereal crops.
  • To explore the molecular basis of DELLA protein function in cereals for potential yield improvement.
  • To identify and discuss the available tools for advancing DELLA research in cereals.

Main Methods:

  • Review of existing literature on DELLA proteins and plant growth regulation.
  • Phylogenetic analysis of DELLA-related proteins across plant species.
  • Discussion of current molecular and genetic tools applicable to cereal research.

Main Results:

  • DELLA proteins play a crucial role in mediating plant growth responses, particularly in cereals.
  • Cereals possess unique DELLA-related proteins (DGLLAs) not found in *Arabidopsis*, suggesting divergent evolutionary paths and functions.
  • Significant potential exists for leveraging knowledge of DELLA function to enhance cereal crop yields.

Conclusions:

  • Understanding DELLA protein molecular mechanisms in cereals is key to improving crop productivity.
  • Research efforts should expand to include cereals, utilizing newly available tools to investigate DELLA functions.
  • Targeting DELLA pathways in cereals offers a promising avenue for future agricultural advancements.