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When SWEETs Turn Tweens: Updates and Perspectives.

Xueyi Xue1, Jiang Wang1, Diwakar Shukla2

  • 1Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA;

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Summary
This summary is machine-generated.

Plant sugar transporters, known as SWEETs (sugars will eventually be exported transporters), are crucial for nutrient movement and microbe interactions. Understanding their structure and function is key to improving crop yields.

Keywords:
SWEETcrystal structureeffluxmolecular dynamics simulationspathogen nutritionsugar transport

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Area of Science:

  • Plant biology
  • Molecular mechanisms
  • Biochemistry

Background:

  • Sugar transport is vital for plant cell-to-cell and inter-organismal communication.
  • The SWEET (sugars will eventually be exported transporters) family comprises essential proteins involved in numerous plant processes.
  • Interactions with microorganisms heavily rely on plant sugar transporters.

Purpose of the Study:

  • To review the current understanding of the SWEET transporter family.
  • To explore SWEETs from atomic structures to whole-plant physiology.
  • To highlight research needed for agricultural applications.

Main Methods:

  • Structural biology (crystallography) of SWEETs and homologs.
  • Molecular dynamics simulations.
  • Biochemical and physiological characterization.

Main Results:

  • Multiple SWEET structures reveal different conformations, offering insights into transport mechanisms.
  • Substrate recognition of glucose and sucrose by SWEETs has been elucidated.
  • SWEETs play critical roles in plant physiology and development.

Conclusions:

  • SWEET transporters are fundamental to plant life, mediating sugar movement and interactions.
  • Further research into SWEETs can be translated into strategies for enhancing crop yields.
  • Understanding SWEET evolution, regulation, and function is crucial for future agricultural advancements.