A proposed role for non-junctional transverse tubules in skeletal muscle as flexible segments allowing expansion of the transverse network

Using a variety of technical approaches, we have detected the presence of continuous triads that cover the entire length of T tubules in the main white body muscles of several small fish. This is in contrast to the discontinuous association of sarcoplasmic reticulum with T tubules in the red muscles...

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Detalles Bibliográficos
Autores principales: Lavorato, Manuela, Iyer, Ramesh, Franzini-Armstrong, Clara
Formato: Online Artículo Texto
Lenguaje:English
Publicado: PAGEPress Publications, Pavia, Italy 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6615364/
https://www.ncbi.nlm.nih.gov/pubmed/31354929
http://dx.doi.org/10.4081/ejtm.2019.8264
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author Lavorato, Manuela
Iyer, Ramesh
Franzini-Armstrong, Clara
author_facet Lavorato, Manuela
Iyer, Ramesh
Franzini-Armstrong, Clara
author_sort Lavorato, Manuela
collection PubMed
description Using a variety of technical approaches, we have detected the presence of continuous triads that cover the entire length of T tubules in the main white body muscles of several small fish. This is in contrast to the discontinuous association of sarcoplasmic reticulum with T tubules in the red muscles from the same fish as well as in all other previously described muscles in a large variety of skeletal muscles. We suggest that continuous triads are permissible only in muscle fibers that are not normally subject to significant changes in sarcomere length during normal in vivo activity, as is the case for white muscles in the trunk of fish.
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spelling pubmed-66153642019-07-26 A proposed role for non-junctional transverse tubules in skeletal muscle as flexible segments allowing expansion of the transverse network Lavorato, Manuela Iyer, Ramesh Franzini-Armstrong, Clara Eur J Transl Myol Article Using a variety of technical approaches, we have detected the presence of continuous triads that cover the entire length of T tubules in the main white body muscles of several small fish. This is in contrast to the discontinuous association of sarcoplasmic reticulum with T tubules in the red muscles from the same fish as well as in all other previously described muscles in a large variety of skeletal muscles. We suggest that continuous triads are permissible only in muscle fibers that are not normally subject to significant changes in sarcomere length during normal in vivo activity, as is the case for white muscles in the trunk of fish. PAGEPress Publications, Pavia, Italy 2019-05-16 /pmc/articles/PMC6615364/ /pubmed/31354929 http://dx.doi.org/10.4081/ejtm.2019.8264 Text en http://creativecommons.org/licenses/by-nc/4.0/ This article is distributed under the terms of the Creative Commons Attribution Noncommercial License (by-nc 4.0) which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
spellingShingle Article
Lavorato, Manuela
Iyer, Ramesh
Franzini-Armstrong, Clara
A proposed role for non-junctional transverse tubules in skeletal muscle as flexible segments allowing expansion of the transverse network
title A proposed role for non-junctional transverse tubules in skeletal muscle as flexible segments allowing expansion of the transverse network
title_full A proposed role for non-junctional transverse tubules in skeletal muscle as flexible segments allowing expansion of the transverse network
title_fullStr A proposed role for non-junctional transverse tubules in skeletal muscle as flexible segments allowing expansion of the transverse network
title_full_unstemmed A proposed role for non-junctional transverse tubules in skeletal muscle as flexible segments allowing expansion of the transverse network
title_short A proposed role for non-junctional transverse tubules in skeletal muscle as flexible segments allowing expansion of the transverse network
title_sort proposed role for non-junctional transverse tubules in skeletal muscle as flexible segments allowing expansion of the transverse network
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6615364/
https://www.ncbi.nlm.nih.gov/pubmed/31354929
http://dx.doi.org/10.4081/ejtm.2019.8264
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