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Apoptotic Processes Precede Infection with Symbionts in a Pogonophoran Lavrae (Siboglinidae, Annelida)
The fine structure of the body wall and gut was for the first time studied in the competent larvae of the frenulate pogonophoran Siboglinum fiordicum. Mass apoptosis of cell nuclei was observed in the dermo-muscular body wall and coelomic epithelium. Apoptotic nuclei were found in both cell cytoplas...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Pleiades Publishing
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9613708/ https://www.ncbi.nlm.nih.gov/pubmed/36301418 http://dx.doi.org/10.1134/S0012496622050118 |
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author | Rimskaya-Korsakova, N. N. Temereva, E. N. Malakhov, V. V. |
author_facet | Rimskaya-Korsakova, N. N. Temereva, E. N. Malakhov, V. V. |
author_sort | Rimskaya-Korsakova, N. N. |
collection | PubMed |
description | The fine structure of the body wall and gut was for the first time studied in the competent larvae of the frenulate pogonophoran Siboglinum fiordicum. Mass apoptosis of cell nuclei was observed in the dermo-muscular body wall and coelomic epithelium. Apoptotic nuclei were found in both cell cytoplasm and outside of the larval body. In the latter case, each nucleus was surrounded by the plasmalemma, and the entire cluster was covered with the cuticle. Cells of the larval gut retained the usual structure with the cytoplasm filled with numerous yolky granules and the nucleus displaying usual morphology. Similar apoptotic processes have been described in vestimentiferans and found to be initiated by penetration of symbiotic bacteria through the integument into the dorsal mesentery. The process of apoptotic rearrangement of body wall cells and the formation of unique symbiosis with bacteria were assumed to be time-spaced in S. fiordicum, occurring sequentially rather than simultaneously, unlike in vestimentiferans. |
format | Online Article Text |
id | pubmed-9613708 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Pleiades Publishing |
record_format | MEDLINE/PubMed |
spelling | pubmed-96137082022-10-29 Apoptotic Processes Precede Infection with Symbionts in a Pogonophoran Lavrae (Siboglinidae, Annelida) Rimskaya-Korsakova, N. N. Temereva, E. N. Malakhov, V. V. Dokl Biol Sci Article The fine structure of the body wall and gut was for the first time studied in the competent larvae of the frenulate pogonophoran Siboglinum fiordicum. Mass apoptosis of cell nuclei was observed in the dermo-muscular body wall and coelomic epithelium. Apoptotic nuclei were found in both cell cytoplasm and outside of the larval body. In the latter case, each nucleus was surrounded by the plasmalemma, and the entire cluster was covered with the cuticle. Cells of the larval gut retained the usual structure with the cytoplasm filled with numerous yolky granules and the nucleus displaying usual morphology. Similar apoptotic processes have been described in vestimentiferans and found to be initiated by penetration of symbiotic bacteria through the integument into the dorsal mesentery. The process of apoptotic rearrangement of body wall cells and the formation of unique symbiosis with bacteria were assumed to be time-spaced in S. fiordicum, occurring sequentially rather than simultaneously, unlike in vestimentiferans. Pleiades Publishing 2022-10-27 2022 /pmc/articles/PMC9613708/ /pubmed/36301418 http://dx.doi.org/10.1134/S0012496622050118 Text en © The Author(s) 2022, ISSN 0012-4966, Doklady Biological Sciences, 2022, Vol. 506, pp. 128–131. © The Author(s), 2022. This article is an open access publication.Russian Text © The Author(s), 2022, published in Doklady Rossiiskoi Akademii Nauk. Nauki o Zhizni, 2022, Vol. 506, pp. 406–410. https://creativecommons.org/licenses/by/4.0/Open Access.This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Rimskaya-Korsakova, N. N. Temereva, E. N. Malakhov, V. V. Apoptotic Processes Precede Infection with Symbionts in a Pogonophoran Lavrae (Siboglinidae, Annelida) |
title | Apoptotic Processes Precede Infection with Symbionts in a Pogonophoran Lavrae (Siboglinidae, Annelida) |
title_full | Apoptotic Processes Precede Infection with Symbionts in a Pogonophoran Lavrae (Siboglinidae, Annelida) |
title_fullStr | Apoptotic Processes Precede Infection with Symbionts in a Pogonophoran Lavrae (Siboglinidae, Annelida) |
title_full_unstemmed | Apoptotic Processes Precede Infection with Symbionts in a Pogonophoran Lavrae (Siboglinidae, Annelida) |
title_short | Apoptotic Processes Precede Infection with Symbionts in a Pogonophoran Lavrae (Siboglinidae, Annelida) |
title_sort | apoptotic processes precede infection with symbionts in a pogonophoran lavrae (siboglinidae, annelida) |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9613708/ https://www.ncbi.nlm.nih.gov/pubmed/36301418 http://dx.doi.org/10.1134/S0012496622050118 |
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