Diversity and community structure of bacterioplankton in surface waters off the northern tip of the Antarctic Peninsula
Global climate change is significantly affecting marine life off the northern tip of the Antarctic Peninsula, but little is known about microbial ecology in this area. The main goal of this study was to investigate the bacterioplankton community structure in surface waters using pyrosequencing and t...
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Norwegian Polar Institute
2019
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ftdoajarticles:oai:doaj.org/article:c6a12cd70e824441a31c62c811243a15 2023-05-15T13:34:22+02:00 Diversity and community structure of bacterioplankton in surface waters off the northern tip of the Antarctic Peninsula Shunan Cao Jianfeng He Fang Zhang Ling Lin Yuan Gao Qiming Zhou 2019-03-01T00:00:00Z https://doi.org/10.33265/polar.v38.3491 https://doaj.org/article/c6a12cd70e824441a31c62c811243a15 EN eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/3491/9162 https://doaj.org/toc/1751-8369 1751-8369 doi:10.33265/polar.v38.3491 https://doaj.org/article/c6a12cd70e824441a31c62c811243a15 Polar Research, Vol 38, Iss 0, Pp 1-15 (2019) Bacteria dominant genera environmental factors interpopulation interactions pyrosequencing Environmental sciences GE1-350 Oceanography GC1-1581 article 2019 ftdoajarticles https://doi.org/10.33265/polar.v38.3491 2022-12-31T04:20:11Z Global climate change is significantly affecting marine life off the northern tip of the Antarctic Peninsula, but little is known about microbial ecology in this area. The main goal of this study was to investigate the bacterioplankton community structure in surface waters using pyrosequencing and to determine factors influencing this community. Pelagibacterales and Rhodobacterales (Alphaproteobacteria), Oceanospirillales and Alteromonadales (Gammaproteobacteria), and Flavobacteriales (Bacteroidetes) were the core taxa in our samples, and the five most relatively abundant genera were Pelagibacter, Polaribacter, Octadecabacter, group HTCC2207 and Sulfitobacter. Although nutrients and chlorophyll a (chl a) contributed more to bacterioplankton community structure than water masses or depth, only 30.39% of the variance could be explained by the investigated environmental factors, as revealed by RDA and pRDA. No significant difference with respect to nutrients and chl a was observed among water masses or depth, as indicated by ANOVA. Furthermore, significant correlations among the dominant bacterial genera were more common than correlations between dominant genera and environmental factors, as revealed by Spearman analysis. We conclude that nutrients and chl a become homogeneous and that interpopulation interactions may have a central role in influencing the bacterial community structure in surface waters off the northern tip of the Antarctic Peninsula during the summer. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Polar Research Directory of Open Access Journals: DOAJ Articles Antarctic The Antarctic Antarctic Peninsula Polar Research 38 0 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Bacteria dominant genera environmental factors interpopulation interactions pyrosequencing Environmental sciences GE1-350 Oceanography GC1-1581 |
spellingShingle |
Bacteria dominant genera environmental factors interpopulation interactions pyrosequencing Environmental sciences GE1-350 Oceanography GC1-1581 Shunan Cao Jianfeng He Fang Zhang Ling Lin Yuan Gao Qiming Zhou Diversity and community structure of bacterioplankton in surface waters off the northern tip of the Antarctic Peninsula |
topic_facet |
Bacteria dominant genera environmental factors interpopulation interactions pyrosequencing Environmental sciences GE1-350 Oceanography GC1-1581 |
description |
Global climate change is significantly affecting marine life off the northern tip of the Antarctic Peninsula, but little is known about microbial ecology in this area. The main goal of this study was to investigate the bacterioplankton community structure in surface waters using pyrosequencing and to determine factors influencing this community. Pelagibacterales and Rhodobacterales (Alphaproteobacteria), Oceanospirillales and Alteromonadales (Gammaproteobacteria), and Flavobacteriales (Bacteroidetes) were the core taxa in our samples, and the five most relatively abundant genera were Pelagibacter, Polaribacter, Octadecabacter, group HTCC2207 and Sulfitobacter. Although nutrients and chlorophyll a (chl a) contributed more to bacterioplankton community structure than water masses or depth, only 30.39% of the variance could be explained by the investigated environmental factors, as revealed by RDA and pRDA. No significant difference with respect to nutrients and chl a was observed among water masses or depth, as indicated by ANOVA. Furthermore, significant correlations among the dominant bacterial genera were more common than correlations between dominant genera and environmental factors, as revealed by Spearman analysis. We conclude that nutrients and chl a become homogeneous and that interpopulation interactions may have a central role in influencing the bacterial community structure in surface waters off the northern tip of the Antarctic Peninsula during the summer. |
format |
Article in Journal/Newspaper |
author |
Shunan Cao Jianfeng He Fang Zhang Ling Lin Yuan Gao Qiming Zhou |
author_facet |
Shunan Cao Jianfeng He Fang Zhang Ling Lin Yuan Gao Qiming Zhou |
author_sort |
Shunan Cao |
title |
Diversity and community structure of bacterioplankton in surface waters off the northern tip of the Antarctic Peninsula |
title_short |
Diversity and community structure of bacterioplankton in surface waters off the northern tip of the Antarctic Peninsula |
title_full |
Diversity and community structure of bacterioplankton in surface waters off the northern tip of the Antarctic Peninsula |
title_fullStr |
Diversity and community structure of bacterioplankton in surface waters off the northern tip of the Antarctic Peninsula |
title_full_unstemmed |
Diversity and community structure of bacterioplankton in surface waters off the northern tip of the Antarctic Peninsula |
title_sort |
diversity and community structure of bacterioplankton in surface waters off the northern tip of the antarctic peninsula |
publisher |
Norwegian Polar Institute |
publishDate |
2019 |
url |
https://doi.org/10.33265/polar.v38.3491 https://doaj.org/article/c6a12cd70e824441a31c62c811243a15 |
geographic |
Antarctic The Antarctic Antarctic Peninsula |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula |
genre |
Antarc* Antarctic Antarctic Peninsula Polar Research |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Polar Research |
op_source |
Polar Research, Vol 38, Iss 0, Pp 1-15 (2019) |
op_relation |
https://polarresearch.net/index.php/polar/article/view/3491/9162 https://doaj.org/toc/1751-8369 1751-8369 doi:10.33265/polar.v38.3491 https://doaj.org/article/c6a12cd70e824441a31c62c811243a15 |
op_doi |
https://doi.org/10.33265/polar.v38.3491 |
container_title |
Polar Research |
container_volume |
38 |
container_issue |
0 |
_version_ |
1766052218952220672 |