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A novel cyanobacterial geosmin producer, revising GeoA distribution and dispersion patterns in Bacteria
Cyanobacteria are ubiquitous organisms with a relevant contribution to primary production in all range of habitats. Cyanobacteria are well known for their part in worldwide occurrence of aquatic blooms while producing a myriad of natural compounds, some with toxic potential, but others of high econo...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7251104/ https://www.ncbi.nlm.nih.gov/pubmed/32457360 http://dx.doi.org/10.1038/s41598-020-64774-y |
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author | Churro, Catarina Semedo-Aguiar, Ana P. Silva, Alexandra D. Pereira-Leal, Jose B. Leite, Ricardo B. |
author_facet | Churro, Catarina Semedo-Aguiar, Ana P. Silva, Alexandra D. Pereira-Leal, Jose B. Leite, Ricardo B. |
author_sort | Churro, Catarina |
collection | PubMed |
description | Cyanobacteria are ubiquitous organisms with a relevant contribution to primary production in all range of habitats. Cyanobacteria are well known for their part in worldwide occurrence of aquatic blooms while producing a myriad of natural compounds, some with toxic potential, but others of high economical impact, as geosmin. We performed an environmental survey of cyanobacterial soil colonies to identify interesting metabolic pathways and adaptation strategies used by these microorganisms and isolated, sequenced and assembled the genome of a cyanobacterium that displayed a distinctive earthy/musty smell, typical of geosmin, confirmed by GC-MS analysis of the culture’s volatile extract. Morphological studies pointed to a new Oscillatoriales soil ecotype confirmed by phylogenetic analysis, which we named Microcoleus asticus sp. nov. Our studies of geosmin gene presence in Bacteria, revealed a scattered distribution among Cyanobacteria, Actinobacteria, Delta and Gammaproteobacteria, covering different niches. Careful analysis of the bacterial geosmin gene and gene tree suggests an ancient bacterial origin of the gene, that was probably successively lost in different time frames. The high sequence similarities in the cyanobacterial geosmin gene amidst freshwater and soil strains, reinforce the idea of an evolutionary history of geosmin, that is intimately connected to niche adaptation. |
format | Online Article Text |
id | pubmed-7251104 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-72511042020-06-04 A novel cyanobacterial geosmin producer, revising GeoA distribution and dispersion patterns in Bacteria Churro, Catarina Semedo-Aguiar, Ana P. Silva, Alexandra D. Pereira-Leal, Jose B. Leite, Ricardo B. Sci Rep Article Cyanobacteria are ubiquitous organisms with a relevant contribution to primary production in all range of habitats. Cyanobacteria are well known for their part in worldwide occurrence of aquatic blooms while producing a myriad of natural compounds, some with toxic potential, but others of high economical impact, as geosmin. We performed an environmental survey of cyanobacterial soil colonies to identify interesting metabolic pathways and adaptation strategies used by these microorganisms and isolated, sequenced and assembled the genome of a cyanobacterium that displayed a distinctive earthy/musty smell, typical of geosmin, confirmed by GC-MS analysis of the culture’s volatile extract. Morphological studies pointed to a new Oscillatoriales soil ecotype confirmed by phylogenetic analysis, which we named Microcoleus asticus sp. nov. Our studies of geosmin gene presence in Bacteria, revealed a scattered distribution among Cyanobacteria, Actinobacteria, Delta and Gammaproteobacteria, covering different niches. Careful analysis of the bacterial geosmin gene and gene tree suggests an ancient bacterial origin of the gene, that was probably successively lost in different time frames. The high sequence similarities in the cyanobacterial geosmin gene amidst freshwater and soil strains, reinforce the idea of an evolutionary history of geosmin, that is intimately connected to niche adaptation. Nature Publishing Group UK 2020-05-26 /pmc/articles/PMC7251104/ /pubmed/32457360 http://dx.doi.org/10.1038/s41598-020-64774-y Text en © The Author(s) 2020 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/. |
spellingShingle | Article Churro, Catarina Semedo-Aguiar, Ana P. Silva, Alexandra D. Pereira-Leal, Jose B. Leite, Ricardo B. A novel cyanobacterial geosmin producer, revising GeoA distribution and dispersion patterns in Bacteria |
title | A novel cyanobacterial geosmin producer, revising GeoA distribution and dispersion patterns in Bacteria |
title_full | A novel cyanobacterial geosmin producer, revising GeoA distribution and dispersion patterns in Bacteria |
title_fullStr | A novel cyanobacterial geosmin producer, revising GeoA distribution and dispersion patterns in Bacteria |
title_full_unstemmed | A novel cyanobacterial geosmin producer, revising GeoA distribution and dispersion patterns in Bacteria |
title_short | A novel cyanobacterial geosmin producer, revising GeoA distribution and dispersion patterns in Bacteria |
title_sort | novel cyanobacterial geosmin producer, revising geoa distribution and dispersion patterns in bacteria |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7251104/ https://www.ncbi.nlm.nih.gov/pubmed/32457360 http://dx.doi.org/10.1038/s41598-020-64774-y |
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