Development of the muscle system and contractile activity in the mussel Mytilus trossulus (Mollusca, Bivalvia)

Development of the muscle system and contractile activity in the mussel Mytilus trossulus... The development of contractile apparatus was subjected to comparative analysis during ontogenesis of the mussel Mytilus trossulus. Indirect immunofluorescence with the polyclonal antibody against mussel twitchin, a protein of thick filaments, and fluorescent phalloidin as a marker of filamentous cell actin were used to monitor changes in the developing muscle system at different larval stages. The first definitive muscle structures were found at the late trochophore stage (36 h after fertilization) and starting from the midveliger stage (96h), striated muscles, which are never present in adult mussels, were distinctly seen. The striated muscle periodicity was 1.25 μm in both mussel larvae and adult scallop. The contractile activities of veliger and adult muscles were measured using an electronic signal-processing video workstation. This work is the first complex study of morphological, biochemical, and physiological characteristics of the muscle system in the larvae and adult molluscs. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Developmental Biology Springer Journals

Development of the muscle system and contractile activity in the mussel Mytilus trossulus (Mollusca, Bivalvia)

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Publisher
Nauka/Interperiodica
Copyright
Copyright © 2007 by Pleiades Publishing, Inc.
Subject
Life Sciences; Developmental Biology; Animal Anatomy / Morphology / Histology
ISSN
1062-3604
eISSN
1608-3326
D.O.I.
10.1134/S1062360407030071
Publisher site
See Article on Publisher Site

Abstract

The development of contractile apparatus was subjected to comparative analysis during ontogenesis of the mussel Mytilus trossulus. Indirect immunofluorescence with the polyclonal antibody against mussel twitchin, a protein of thick filaments, and fluorescent phalloidin as a marker of filamentous cell actin were used to monitor changes in the developing muscle system at different larval stages. The first definitive muscle structures were found at the late trochophore stage (36 h after fertilization) and starting from the midveliger stage (96h), striated muscles, which are never present in adult mussels, were distinctly seen. The striated muscle periodicity was 1.25 μm in both mussel larvae and adult scallop. The contractile activities of veliger and adult muscles were measured using an electronic signal-processing video workstation. This work is the first complex study of morphological, biochemical, and physiological characteristics of the muscle system in the larvae and adult molluscs.

Journal

Russian Journal of Developmental BiologySpringer Journals

Published: Jun 13, 2007

References

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