Polar Cryoconite Associated Microbiota Is Dominated by Hemispheric Specialist Genera
Cryoconite holes, supraglacial depressions containing water and microbe-mineral aggregates, are known to be hotspots of microbial diversity on glacial surfaces. Cryoconite holes form in a variety of locations and conditions, which impacts both their structure and the community that inhabits them. Us...
Published in: | Frontiers in Microbiology |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Frontiers Media S.A.
2021
|
Subjects: | |
Online Access: | https://doi.org/10.3389/fmicb.2021.738451 https://doaj.org/article/0b20c1facd7c45d8800269717eee8b7e |
id |
ftdoajarticles:oai:doaj.org/article:0b20c1facd7c45d8800269717eee8b7e |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:0b20c1facd7c45d8800269717eee8b7e 2023-05-15T13:58:33+02:00 Polar Cryoconite Associated Microbiota Is Dominated by Hemispheric Specialist Genera Jasmin L. Millar Elizabeth A. Bagshaw Arwyn Edwards Ewa A. Poniecka Anne D. Jungblut 2021-11-01T00:00:00Z https://doi.org/10.3389/fmicb.2021.738451 https://doaj.org/article/0b20c1facd7c45d8800269717eee8b7e EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fmicb.2021.738451/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2021.738451 https://doaj.org/article/0b20c1facd7c45d8800269717eee8b7e Frontiers in Microbiology, Vol 12 (2021) cryoconite illumina sequencing Antarctic microbiology Arctic microbiology pole-to-pole 16S rRNA gene Microbiology QR1-502 article 2021 ftdoajarticles https://doi.org/10.3389/fmicb.2021.738451 2022-12-31T07:17:11Z Cryoconite holes, supraglacial depressions containing water and microbe-mineral aggregates, are known to be hotspots of microbial diversity on glacial surfaces. Cryoconite holes form in a variety of locations and conditions, which impacts both their structure and the community that inhabits them. Using high-throughput 16S and 18S rRNA gene sequencing, we have investigated the communities of a wide range of cryoconite holes from 15 locations across the Arctic and Antarctic. Around 24 bacterial and 11 eukaryotic first-rank phyla were observed in total. The various biotic niches (grazer, predator, photoautotroph, and chemotroph), are filled in every location. Significantly, there is a clear divide between the bacterial and microalgal communities of the Arctic and that of the Antarctic. We were able to determine the groups contributing to this difference and the family and genus level. Both polar regions contain a “core group” of bacteria that are present in the majority of cryoconite holes and each contribute >1% of total amplicon sequence variant (ASV) abundance. Whilst both groups contain Microbacteriaceae, the remaining members are specific to the core group of each polar region. Additionally, the microalgal communities of Arctic cryoconite holes are dominated by Chlamydomonas whereas the Antarctic cryoconite holes are dominated by Pleurastrum. Therefore cryoconite holes may be a global feature of glacier landscapes, but they are inhabited by regionally distinct microbial communities. Our results are consistent with the notion that cryoconite microbiomes are adapted to differing conditions within the cryosphere. Article in Journal/Newspaper Antarc* Antarctic Arctic Directory of Open Access Journals: DOAJ Articles Antarctic Arctic The Antarctic Frontiers in Microbiology 12 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
cryoconite illumina sequencing Antarctic microbiology Arctic microbiology pole-to-pole 16S rRNA gene Microbiology QR1-502 |
spellingShingle |
cryoconite illumina sequencing Antarctic microbiology Arctic microbiology pole-to-pole 16S rRNA gene Microbiology QR1-502 Jasmin L. Millar Elizabeth A. Bagshaw Arwyn Edwards Ewa A. Poniecka Anne D. Jungblut Polar Cryoconite Associated Microbiota Is Dominated by Hemispheric Specialist Genera |
topic_facet |
cryoconite illumina sequencing Antarctic microbiology Arctic microbiology pole-to-pole 16S rRNA gene Microbiology QR1-502 |
description |
Cryoconite holes, supraglacial depressions containing water and microbe-mineral aggregates, are known to be hotspots of microbial diversity on glacial surfaces. Cryoconite holes form in a variety of locations and conditions, which impacts both their structure and the community that inhabits them. Using high-throughput 16S and 18S rRNA gene sequencing, we have investigated the communities of a wide range of cryoconite holes from 15 locations across the Arctic and Antarctic. Around 24 bacterial and 11 eukaryotic first-rank phyla were observed in total. The various biotic niches (grazer, predator, photoautotroph, and chemotroph), are filled in every location. Significantly, there is a clear divide between the bacterial and microalgal communities of the Arctic and that of the Antarctic. We were able to determine the groups contributing to this difference and the family and genus level. Both polar regions contain a “core group” of bacteria that are present in the majority of cryoconite holes and each contribute >1% of total amplicon sequence variant (ASV) abundance. Whilst both groups contain Microbacteriaceae, the remaining members are specific to the core group of each polar region. Additionally, the microalgal communities of Arctic cryoconite holes are dominated by Chlamydomonas whereas the Antarctic cryoconite holes are dominated by Pleurastrum. Therefore cryoconite holes may be a global feature of glacier landscapes, but they are inhabited by regionally distinct microbial communities. Our results are consistent with the notion that cryoconite microbiomes are adapted to differing conditions within the cryosphere. |
format |
Article in Journal/Newspaper |
author |
Jasmin L. Millar Elizabeth A. Bagshaw Arwyn Edwards Ewa A. Poniecka Anne D. Jungblut |
author_facet |
Jasmin L. Millar Elizabeth A. Bagshaw Arwyn Edwards Ewa A. Poniecka Anne D. Jungblut |
author_sort |
Jasmin L. Millar |
title |
Polar Cryoconite Associated Microbiota Is Dominated by Hemispheric Specialist Genera |
title_short |
Polar Cryoconite Associated Microbiota Is Dominated by Hemispheric Specialist Genera |
title_full |
Polar Cryoconite Associated Microbiota Is Dominated by Hemispheric Specialist Genera |
title_fullStr |
Polar Cryoconite Associated Microbiota Is Dominated by Hemispheric Specialist Genera |
title_full_unstemmed |
Polar Cryoconite Associated Microbiota Is Dominated by Hemispheric Specialist Genera |
title_sort |
polar cryoconite associated microbiota is dominated by hemispheric specialist genera |
publisher |
Frontiers Media S.A. |
publishDate |
2021 |
url |
https://doi.org/10.3389/fmicb.2021.738451 https://doaj.org/article/0b20c1facd7c45d8800269717eee8b7e |
geographic |
Antarctic Arctic The Antarctic |
geographic_facet |
Antarctic Arctic The Antarctic |
genre |
Antarc* Antarctic Arctic |
genre_facet |
Antarc* Antarctic Arctic |
op_source |
Frontiers in Microbiology, Vol 12 (2021) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fmicb.2021.738451/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2021.738451 https://doaj.org/article/0b20c1facd7c45d8800269717eee8b7e |
op_doi |
https://doi.org/10.3389/fmicb.2021.738451 |
container_title |
Frontiers in Microbiology |
container_volume |
12 |
_version_ |
1766266906987200512 |