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Mechanosensory cells in annelid oligochaete Lumbricus terrestris (Linnaeus, 1758): A new insight on worm evolution

Mechanosensory cells in annelid oligochaete Lumbricus terrestris (Linnaeus, 1758): A new insight... Ciliated and non‐ciliated mechanosensory cells in invertebrates have intricate cytoskeletal structures that, combined with microtubules, act as a mechanical link between external stimulus and signal processing. As a result, they can perceive forces like touch, cuticle deformation, gravity and sound. Through the expression of antibodies against serotonin (5‐HT), calbindin, inducible nitric oxide synthase (iNOS) and α‐smooth muscle actin (αSMA), this research aims to investigate mechanosensory cells in the integument of Lumbricus terrestris (Linnaeus, 1758) in an evolutionary perspective. In the epidermis, we discovered isolated mechanosensory cells that were immunopositive to every antibody examined. Our findings improve the knowledge and the evolution of annelid sensory biology adding new insights on the sensory signal transduction and help to better understand the morpho‐structural adaptations of invertebrate skin on an evolutionary scale and to give more taxonomic data for species distinction. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Zoologica Wiley

Mechanosensory cells in annelid oligochaete Lumbricus terrestris (Linnaeus, 1758): A new insight on worm evolution

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References (54)

Publisher
Wiley
Copyright
Acta Zoologica © 2023 The Royal Swedish Academy of Sciences
ISSN
0001-7272
eISSN
1463-6395
DOI
10.1111/azo.12475
Publisher site
See Article on Publisher Site

Abstract

Ciliated and non‐ciliated mechanosensory cells in invertebrates have intricate cytoskeletal structures that, combined with microtubules, act as a mechanical link between external stimulus and signal processing. As a result, they can perceive forces like touch, cuticle deformation, gravity and sound. Through the expression of antibodies against serotonin (5‐HT), calbindin, inducible nitric oxide synthase (iNOS) and α‐smooth muscle actin (αSMA), this research aims to investigate mechanosensory cells in the integument of Lumbricus terrestris (Linnaeus, 1758) in an evolutionary perspective. In the epidermis, we discovered isolated mechanosensory cells that were immunopositive to every antibody examined. Our findings improve the knowledge and the evolution of annelid sensory biology adding new insights on the sensory signal transduction and help to better understand the morpho‐structural adaptations of invertebrate skin on an evolutionary scale and to give more taxonomic data for species distinction.

Journal

Acta ZoologicaWiley

Published: Jun 18, 2023

Keywords: earthworm; epidermis; evolution; sensory cells

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