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Myelin sheath and cyanobacterial thylakoids as concentric multilamellar structures with similar bioenergetic properties

There is a surprisingly high morphological similarity between multilamellar concentric thylakoids in cyanobacteria and the myelin sheath that wraps the nerve axons. Thylakoids are multilamellar structures, which express photosystems I and II, cytochromes and ATP synthase necessary for the light-depe...

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Autores principales: Morelli, Alessandro Maria, Chiantore, Mariachiara, Ravera, Silvia, Scholkmann, Felix, Panfoli, Isabella
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8670949/
https://www.ncbi.nlm.nih.gov/pubmed/34905702
http://dx.doi.org/10.1098/rsob.210177
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author Morelli, Alessandro Maria
Chiantore, Mariachiara
Ravera, Silvia
Scholkmann, Felix
Panfoli, Isabella
author_facet Morelli, Alessandro Maria
Chiantore, Mariachiara
Ravera, Silvia
Scholkmann, Felix
Panfoli, Isabella
author_sort Morelli, Alessandro Maria
collection PubMed
description There is a surprisingly high morphological similarity between multilamellar concentric thylakoids in cyanobacteria and the myelin sheath that wraps the nerve axons. Thylakoids are multilamellar structures, which express photosystems I and II, cytochromes and ATP synthase necessary for the light-dependent reaction of photosynthesis. Myelin is a multilamellar structure that surrounds many axons in the nervous system and has long been believed to act simply as an insulator. However, it has been shown that myelin has a trophic role, conveying nutrients to the axons and producing ATP through oxidative phosphorylation. Therefore, it is tempting to presume that both membranous structures, although distant in the evolution tree, share not only a morphological but also a functional similarity, acting in feeding ATP synthesized by the ATP synthase to the centre of the multilamellar structure. Therefore, both molecular structures may represent a convergent evolution of life on Earth to fulfill fundamentally similar functions.
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spelling pubmed-86709492021-12-28 Myelin sheath and cyanobacterial thylakoids as concentric multilamellar structures with similar bioenergetic properties Morelli, Alessandro Maria Chiantore, Mariachiara Ravera, Silvia Scholkmann, Felix Panfoli, Isabella Open Biol Review There is a surprisingly high morphological similarity between multilamellar concentric thylakoids in cyanobacteria and the myelin sheath that wraps the nerve axons. Thylakoids are multilamellar structures, which express photosystems I and II, cytochromes and ATP synthase necessary for the light-dependent reaction of photosynthesis. Myelin is a multilamellar structure that surrounds many axons in the nervous system and has long been believed to act simply as an insulator. However, it has been shown that myelin has a trophic role, conveying nutrients to the axons and producing ATP through oxidative phosphorylation. Therefore, it is tempting to presume that both membranous structures, although distant in the evolution tree, share not only a morphological but also a functional similarity, acting in feeding ATP synthesized by the ATP synthase to the centre of the multilamellar structure. Therefore, both molecular structures may represent a convergent evolution of life on Earth to fulfill fundamentally similar functions. The Royal Society 2021-12-15 /pmc/articles/PMC8670949/ /pubmed/34905702 http://dx.doi.org/10.1098/rsob.210177 Text en © 2021 The Authors. https://creativecommons.org/licenses/by/4.0/Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, provided the original author and source are credited.
spellingShingle Review
Morelli, Alessandro Maria
Chiantore, Mariachiara
Ravera, Silvia
Scholkmann, Felix
Panfoli, Isabella
Myelin sheath and cyanobacterial thylakoids as concentric multilamellar structures with similar bioenergetic properties
title Myelin sheath and cyanobacterial thylakoids as concentric multilamellar structures with similar bioenergetic properties
title_full Myelin sheath and cyanobacterial thylakoids as concentric multilamellar structures with similar bioenergetic properties
title_fullStr Myelin sheath and cyanobacterial thylakoids as concentric multilamellar structures with similar bioenergetic properties
title_full_unstemmed Myelin sheath and cyanobacterial thylakoids as concentric multilamellar structures with similar bioenergetic properties
title_short Myelin sheath and cyanobacterial thylakoids as concentric multilamellar structures with similar bioenergetic properties
title_sort myelin sheath and cyanobacterial thylakoids as concentric multilamellar structures with similar bioenergetic properties
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8670949/
https://www.ncbi.nlm.nih.gov/pubmed/34905702
http://dx.doi.org/10.1098/rsob.210177
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