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Internal microbial zonation during the massive growth of marimo, a lake ball of Aegagropila linnaei in Lake Akan
Marimo (lake ball) is an uncommon ball-like aggregation of the green alga, Aegagropila linnaei. Although A. linnaei is distributed in fresh and brackish waters in the northern hemisphere, marimo colonies are found only in particular habitats. Here, we report the bacterial communities inside various...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8253969/ https://www.ncbi.nlm.nih.gov/pubmed/34258554 http://dx.doi.org/10.1016/j.isci.2021.102720 |
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author | Nakai, Ryosuke Wakana, Isamu Niki, Hironori |
author_facet | Nakai, Ryosuke Wakana, Isamu Niki, Hironori |
author_sort | Nakai, Ryosuke |
collection | PubMed |
description | Marimo (lake ball) is an uncommon ball-like aggregation of the green alga, Aegagropila linnaei. Although A. linnaei is distributed in fresh and brackish waters in the northern hemisphere, marimo colonies are found only in particular habitats. Here, we report the bacterial communities inside various sizes and aggregating structures of natural marimo collected from Lake Akan, Japan. We observed multi-layers composed of sediment particles only in the sizable radial-type marimo with >20 cm diameter and not in the tangled-type marimo. The deeper layers were enriched by Nitrospira, potential sulfur-oxidizing bacteria, and sulfate-reducing bacteria. Microorganisms of the multi-layers would form biofilms incorporating nearby sediment, which would function as microbial “seals” within large radial-type marimo. These findings provide clues to deciphering the growth of endangered marimo. |
format | Online Article Text |
id | pubmed-8253969 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-82539692021-07-12 Internal microbial zonation during the massive growth of marimo, a lake ball of Aegagropila linnaei in Lake Akan Nakai, Ryosuke Wakana, Isamu Niki, Hironori iScience Article Marimo (lake ball) is an uncommon ball-like aggregation of the green alga, Aegagropila linnaei. Although A. linnaei is distributed in fresh and brackish waters in the northern hemisphere, marimo colonies are found only in particular habitats. Here, we report the bacterial communities inside various sizes and aggregating structures of natural marimo collected from Lake Akan, Japan. We observed multi-layers composed of sediment particles only in the sizable radial-type marimo with >20 cm diameter and not in the tangled-type marimo. The deeper layers were enriched by Nitrospira, potential sulfur-oxidizing bacteria, and sulfate-reducing bacteria. Microorganisms of the multi-layers would form biofilms incorporating nearby sediment, which would function as microbial “seals” within large radial-type marimo. These findings provide clues to deciphering the growth of endangered marimo. Elsevier 2021-06-12 /pmc/articles/PMC8253969/ /pubmed/34258554 http://dx.doi.org/10.1016/j.isci.2021.102720 Text en © 2021 The Author(s) https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Article Nakai, Ryosuke Wakana, Isamu Niki, Hironori Internal microbial zonation during the massive growth of marimo, a lake ball of Aegagropila linnaei in Lake Akan |
title | Internal microbial zonation during the massive growth of marimo, a lake ball of Aegagropila linnaei in Lake Akan |
title_full | Internal microbial zonation during the massive growth of marimo, a lake ball of Aegagropila linnaei in Lake Akan |
title_fullStr | Internal microbial zonation during the massive growth of marimo, a lake ball of Aegagropila linnaei in Lake Akan |
title_full_unstemmed | Internal microbial zonation during the massive growth of marimo, a lake ball of Aegagropila linnaei in Lake Akan |
title_short | Internal microbial zonation during the massive growth of marimo, a lake ball of Aegagropila linnaei in Lake Akan |
title_sort | internal microbial zonation during the massive growth of marimo, a lake ball of aegagropila linnaei in lake akan |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8253969/ https://www.ncbi.nlm.nih.gov/pubmed/34258554 http://dx.doi.org/10.1016/j.isci.2021.102720 |
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