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Related Experiment Videos

Organization of early development by calcium patterns.

L F Jaffe1

  • 1Dept. OB/GYN, Women & Infants Hospital, Brown University, 101 Dudley Street, Providence, Rhode Island 01905, USA. LJaffe@MBL.edu

Bioessays : News and Reviews in Molecular, Cellular and Developmental Biology
|August 10, 1999
PubMed
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This study explores the critical roles of calcium in early development, highlighting ultraslow calcium waves as a new class of developmental signals. These waves are essential for various biological processes beyond simple calcium triggering.

Area of Science:

  • Developmental Biology
  • Cellular Signaling
  • Calcium Dynamics

Background:

  • Calcium ions are crucial in early development, acting as more than just triggers.
  • Established roles of calcium in fucoid eggs and Dictyostelium are reviewed.
  • Recent findings on high calcium regions in fish and Drosophila eggs are discussed.

Purpose of the Study:

  • To survey early developmental phenomena where calcium localization and wave propagation are critical.
  • To propose ultraslow developmental waves as a significant new class of calcium waves.
  • To explore the organizing roles of both slow and fast calcium waves in diverse biological systems.

Main Methods:

  • Literature review and synthesis of existing research on calcium dynamics in development.

Related Experiment Videos

  • Analysis of diverse biological systems exhibiting calcium waves.
  • Comparative study of fast and slow calcium wave phenomena.

    • Main Results:

    • Identified six diverse systems with propagated, ultraslow developmental waves.
    • These ultraslow waves include phenomena in Drosophila eye discs, plant development, and neuronal growth cones.
    • Fast calcium waves in ascidian eggs also demonstrate organizing roles.

    Conclusions:

    • Ultraslow calcium waves represent a novel and important class of developmental signals.
    • Calcium waves, both fast and slow, play fundamental organizing roles in various developmental processes.
    • Further research into these calcium wave phenomena can illuminate fundamental biological mechanisms.