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Related Experiment Videos

Nitric oxide in invertebrates

M Colasanti1, G Venturini

  • 1Department of Biology, University of Rome III, Italy.

Molecular Neurobiology
|January 15, 1999
PubMed
Summary
This summary is machine-generated.

Nitric oxide (NO), a key signaling molecule, is widespread across the animal kingdom, including invertebrates. Research reveals its crucial roles in various physiological functions and its evolutionary significance.

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Area of Science:

  • Biochemistry
  • Evolutionary Biology
  • Neuroscience

Background:

  • Nitric oxide (NO) is a vital signaling molecule in vertebrates, involved in numerous physiological processes.
  • Its presence and functions in invertebrates have been less explored but are increasingly recognized.

Purpose of the Study:

  • To review current data on the presence and roles of NO in major invertebrate groups.
  • To highlight the evolutionary significance of NO signaling across the animal kingdom.

Main Methods:

  • Literature review of studies on nitric oxide in invertebrates.
  • Analysis of functional roles and evolutionary appearance of NO.

Main Results:

  • Nitric oxide is widely distributed in invertebrates, from complex organisms to simple coelenterates and prokaryotes.

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  • Invertebrates exhibit functional roles for NO similar to mammals, alongside novel NOS isoforms.
  • The nitrergic pathway plays a significant role in sensory functions, even in early-evolving species.

    • Conclusions:

    • Nitric oxide signaling is ancient and conserved throughout animal evolution.
    • Studying NO in lower organisms offers insights into the evolution of nervous systems and signaling pathways.