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Measuring Spatial and Temporal Ca2+ Signals in Arabidopsis Plants
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Ca2+ imaging in plants using genetically encoded Yellow Cameleon Ca2+ indicators.

Smrutisanjita Behera1, Melanie Krebs, Giovanna Loro

  • 1Institute of Plant Biology and Biotechnology, University of Münster, 48149 Münster, Germany.

Cold Spring Harbor Protocols
|August 3, 2013
PubMed
Summary

Yellow Cameleons (YCs) enable advanced in vivo analysis of cellular calcium (Ca2+) dynamics. This review introduces sophisticated imaging methods for plant Ca2+ signaling, expanding beyond cytoplasmic studies.

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Last Updated: May 9, 2026

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Area of Science:

  • Plant cell biology
  • Biophysics
  • Biochemistry

Background:

  • Cellular calcium (Ca2+) concentration changes are crucial signals regulating diverse biological processes.
  • Ratiometric Ca2+ reporter proteins, such as Yellow Cameleons (YCs), offer high spatial and temporal resolution for in vivo Ca2+ dynamics analysis.
  • Previous plant research using YCs primarily focused on cytoplasmic Ca2+ changes in guard cells, pollen tubes, and root hairs.

Purpose of the Study:

  • To introduce current sophisticated methods for imaging Ca2+ dynamics in plants.
  • To highlight the advancement and broader application of Ca2+ reporter proteins in plant science.
  • To encourage exploration beyond traditional cytoplasmic Ca2+ investigations.

Main Methods:

  • Utilizing ratiometric Ca2+ reporter proteins (Yellow Cameleons).
  • Advanced imaging techniques for in vivo analysis.
  • Application in various plant cell models.

Main Results:

  • Demonstrated the utility of YCs for analyzing Ca2+ dynamics in vivo.
  • Extended the application of YCs to diverse plant cell types.
  • Highlighted limitations in current plant research, primarily focusing on cytoplasmic Ca2+.

Conclusions:

  • Yellow Cameleons are powerful tools for studying plant Ca2+ signaling.
  • There is a need for more sophisticated methods to study Ca2+ dynamics beyond the cytoplasm.
  • Further research can expand the understanding of Ca2+ roles in various plant cellular compartments.