Appearance of Muscle Proteins in Ontogenesis of the Mussel Mytilus trossulus (Bivalvia)

Appearance of Muscle Proteins in Ontogenesis of the Mussel Mytilus trossulus (Bivalvia) The appearance of muscle proteins in the contractile apparatus of the mussel Mytilus trossulus was subjected to comparative analysis during ontogenesis. It was established, with the use of Western blot analysis and electrophoresis in polyacrylamid gel in the presence of sodium dodecylsulfate, that proteins of the contractile apparatus of mussel muscles express long before the formation of the first functionally active muscle system of the veliger larvae. Paramyosin is present in egg cells; twitchin, myorod, and actin appear at the stage of blastula (12 h after fertilization), and myosin appears at the trochophore stage (17 h after fertilization). The quantitative relation of muscle proteins was studied in actomyosin extracts of larvae obtained from different developmental stages. It was shown that the ratios actin/myosin and paramyosin/myosin at the veliger stage (96 h after fertilization) were found to be similar to those in the striated muscles of invertebrates. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Marine Biology Springer Journals

Appearance of Muscle Proteins in Ontogenesis of the Mussel Mytilus trossulus (Bivalvia)

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Publisher
Springer Journals
Copyright
Copyright © 2005 by MAIK "Nauka/Interperiodica"
Subject
Life Sciences; Freshwater & Marine Ecology
ISSN
1063-0740
eISSN
1608-3377
D.O.I.
10.1007/s11179-005-0097-3
Publisher site
See Article on Publisher Site

Abstract

The appearance of muscle proteins in the contractile apparatus of the mussel Mytilus trossulus was subjected to comparative analysis during ontogenesis. It was established, with the use of Western blot analysis and electrophoresis in polyacrylamid gel in the presence of sodium dodecylsulfate, that proteins of the contractile apparatus of mussel muscles express long before the formation of the first functionally active muscle system of the veliger larvae. Paramyosin is present in egg cells; twitchin, myorod, and actin appear at the stage of blastula (12 h after fertilization), and myosin appears at the trochophore stage (17 h after fertilization). The quantitative relation of muscle proteins was studied in actomyosin extracts of larvae obtained from different developmental stages. It was shown that the ratios actin/myosin and paramyosin/myosin at the veliger stage (96 h after fertilization) were found to be similar to those in the striated muscles of invertebrates.

Journal

Russian Journal of Marine BiologySpringer Journals

Published: Nov 14, 2005

References

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