Whither the genus Caldicellulosiruptor and the order Thermoanaerobacterales: phylogeny, taxonomy, ecology, and phenotype
The order Thermoanaerobacterales currently consists of fermentative anaerobic bacteria, including the genus Caldicellulosiruptor . Caldicellulosiruptor are represented by thirteen species; all, but one, have closed genome sequences. Interest in these extreme thermophiles has been motivated not only...
Published in: | Frontiers in Microbiology |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Frontiers Media SA
2023
|
Subjects: | |
Online Access: | http://dx.doi.org/10.3389/fmicb.2023.1212538 https://www.frontiersin.org/articles/10.3389/fmicb.2023.1212538/full |
id |
crfrontiers:10.3389/fmicb.2023.1212538 |
---|---|
record_format |
openpolar |
spelling |
crfrontiers:10.3389/fmicb.2023.1212538 2024-09-15T18:14:15+00:00 Whither the genus Caldicellulosiruptor and the order Thermoanaerobacterales: phylogeny, taxonomy, ecology, and phenotype Bing, Ryan G. Willard, Daniel J. Crosby, James R. Adams, Michael W. W. Kelly, Robert M. 2023 http://dx.doi.org/10.3389/fmicb.2023.1212538 https://www.frontiersin.org/articles/10.3389/fmicb.2023.1212538/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Microbiology volume 14 ISSN 1664-302X journal-article 2023 crfrontiers https://doi.org/10.3389/fmicb.2023.1212538 2024-08-13T04:06:07Z The order Thermoanaerobacterales currently consists of fermentative anaerobic bacteria, including the genus Caldicellulosiruptor . Caldicellulosiruptor are represented by thirteen species; all, but one, have closed genome sequences. Interest in these extreme thermophiles has been motivated not only by their high optimal growth temperatures (≥70°C), but also by their ability to hydrolyze polysaccharides including, for some species, both xylan and microcrystalline cellulose. Caldicellulosiruptor species have been isolated from geographically diverse thermal terrestrial environments located in New Zealand, China, Russia, Iceland and North America. Evidence of their presence in other terrestrial locations is apparent from metagenomic signatures, including volcanic ash in permafrost. Here, phylogeny and taxonomy of the genus Caldicellulosiruptor was re-examined in light of new genome sequences. Based on genome analysis of 15 strains, a new order, Caldicellulosiruptorales, is proposed containing the family Caldicellulosiruptoraceae , consisting of two genera, Caldicellulosiruptor and Anaerocellum . Furthermore, the order Thermoanaerobacterales also was re-assessed, using 91 genome-sequenced strains, and should now include the family Thermoanaerobacteraceae containing the genera Thermoanaerobacter, Thermoanaerobacterium, Caldanaerobacter, the family Caldanaerobiaceae containing the genus Caldanaerobius , and the family Calorimonaceae containing the genus Calorimonas . A main outcome of ANI/AAI analysis indicates the need to reclassify several previously designated species in the Thermoanaerobacterales and Caldicellulosiruptorales by condensing them into strains of single species. Comparative genomics of carbohydrate-active enzyme inventories suggested differentiating phenotypic features, even among strains of the same species, reflecting available nutrients and ecological roles in their native biotopes. Article in Journal/Newspaper Iceland permafrost Frontiers (Publisher) Frontiers in Microbiology 14 |
institution |
Open Polar |
collection |
Frontiers (Publisher) |
op_collection_id |
crfrontiers |
language |
unknown |
description |
The order Thermoanaerobacterales currently consists of fermentative anaerobic bacteria, including the genus Caldicellulosiruptor . Caldicellulosiruptor are represented by thirteen species; all, but one, have closed genome sequences. Interest in these extreme thermophiles has been motivated not only by their high optimal growth temperatures (≥70°C), but also by their ability to hydrolyze polysaccharides including, for some species, both xylan and microcrystalline cellulose. Caldicellulosiruptor species have been isolated from geographically diverse thermal terrestrial environments located in New Zealand, China, Russia, Iceland and North America. Evidence of their presence in other terrestrial locations is apparent from metagenomic signatures, including volcanic ash in permafrost. Here, phylogeny and taxonomy of the genus Caldicellulosiruptor was re-examined in light of new genome sequences. Based on genome analysis of 15 strains, a new order, Caldicellulosiruptorales, is proposed containing the family Caldicellulosiruptoraceae , consisting of two genera, Caldicellulosiruptor and Anaerocellum . Furthermore, the order Thermoanaerobacterales also was re-assessed, using 91 genome-sequenced strains, and should now include the family Thermoanaerobacteraceae containing the genera Thermoanaerobacter, Thermoanaerobacterium, Caldanaerobacter, the family Caldanaerobiaceae containing the genus Caldanaerobius , and the family Calorimonaceae containing the genus Calorimonas . A main outcome of ANI/AAI analysis indicates the need to reclassify several previously designated species in the Thermoanaerobacterales and Caldicellulosiruptorales by condensing them into strains of single species. Comparative genomics of carbohydrate-active enzyme inventories suggested differentiating phenotypic features, even among strains of the same species, reflecting available nutrients and ecological roles in their native biotopes. |
format |
Article in Journal/Newspaper |
author |
Bing, Ryan G. Willard, Daniel J. Crosby, James R. Adams, Michael W. W. Kelly, Robert M. |
spellingShingle |
Bing, Ryan G. Willard, Daniel J. Crosby, James R. Adams, Michael W. W. Kelly, Robert M. Whither the genus Caldicellulosiruptor and the order Thermoanaerobacterales: phylogeny, taxonomy, ecology, and phenotype |
author_facet |
Bing, Ryan G. Willard, Daniel J. Crosby, James R. Adams, Michael W. W. Kelly, Robert M. |
author_sort |
Bing, Ryan G. |
title |
Whither the genus Caldicellulosiruptor and the order Thermoanaerobacterales: phylogeny, taxonomy, ecology, and phenotype |
title_short |
Whither the genus Caldicellulosiruptor and the order Thermoanaerobacterales: phylogeny, taxonomy, ecology, and phenotype |
title_full |
Whither the genus Caldicellulosiruptor and the order Thermoanaerobacterales: phylogeny, taxonomy, ecology, and phenotype |
title_fullStr |
Whither the genus Caldicellulosiruptor and the order Thermoanaerobacterales: phylogeny, taxonomy, ecology, and phenotype |
title_full_unstemmed |
Whither the genus Caldicellulosiruptor and the order Thermoanaerobacterales: phylogeny, taxonomy, ecology, and phenotype |
title_sort |
whither the genus caldicellulosiruptor and the order thermoanaerobacterales: phylogeny, taxonomy, ecology, and phenotype |
publisher |
Frontiers Media SA |
publishDate |
2023 |
url |
http://dx.doi.org/10.3389/fmicb.2023.1212538 https://www.frontiersin.org/articles/10.3389/fmicb.2023.1212538/full |
genre |
Iceland permafrost |
genre_facet |
Iceland permafrost |
op_source |
Frontiers in Microbiology volume 14 ISSN 1664-302X |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/fmicb.2023.1212538 |
container_title |
Frontiers in Microbiology |
container_volume |
14 |
_version_ |
1810452030936842240 |