Bacterial Communities Associated with Poa annua Roots in Central European (Poland) and Antarctic Settings (King George Island)
Poa annua (annual bluegrass) is one of the most ubiquitous grass species in the world. In isolated regions of maritime Antarctica, it has become an invasive organism threatening native tundra communities. In this study, we have explored and compared the rhizosphere and root-endosphere dwelling micro...
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ftmdpi:oai:mdpi.com:/2076-2607/9/4/811/ 2023-08-20T04:02:22+02:00 Bacterial Communities Associated with Poa annua Roots in Central European (Poland) and Antarctic Settings (King George Island) Anna Znój Jakub Grzesiak Jan Gawor Robert Gromadka Katarzyna J. Chwedorzewska agris 2021-04-12 application/pdf https://doi.org/10.3390/microorganisms9040811 EN eng Multidisciplinary Digital Publishing Institute Environmental Microbiology https://dx.doi.org/10.3390/microorganisms9040811 https://creativecommons.org/licenses/by/4.0/ Microorganisms; Volume 9; Issue 4; Pages: 811 rhizosphere microbiome endosphere roots invasive species Text 2021 ftmdpi https://doi.org/10.3390/microorganisms9040811 2023-08-01T01:29:13Z Poa annua (annual bluegrass) is one of the most ubiquitous grass species in the world. In isolated regions of maritime Antarctica, it has become an invasive organism threatening native tundra communities. In this study, we have explored and compared the rhizosphere and root-endosphere dwelling microbial community of P. annua specimens of maritime Antarctic and Central European origin in terms of bacterial phylogenetic diversity and microbial metabolic activity with a geochemical soil background. Our results show that the rhizospheric bacterial community was unique for each sampling site, yet the endosphere communities were similar to each other. However, key plant-associated bacterial taxa such as the Rhizobiaceae family were poorly represented in Antarctic samples, probably due to high salinity and heavy metal concentrations in the soil. Metabolic activity in the Antarctic material was considerably lower than in Central European samples. Antarctic root endosphere showed unusually high numbers of certain opportunistic bacterial groups, which proliferated due to low competition conditions. Thirteen bacterial families were recognized in this study to form a core microbiome of the P. annua root endosphere. The most numerous were the Flavobacteriaceae, suspected to be major contributors to the ecological success of annual bluegrass, especially in harsh, Antarctic conditions. Text Antarc* Antarctic Antarctica King George Island Tundra MDPI Open Access Publishing Antarctic King George Island The Antarctic Microorganisms 9 4 811 |
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MDPI Open Access Publishing |
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English |
topic |
rhizosphere microbiome endosphere roots invasive species |
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rhizosphere microbiome endosphere roots invasive species Anna Znój Jakub Grzesiak Jan Gawor Robert Gromadka Katarzyna J. Chwedorzewska Bacterial Communities Associated with Poa annua Roots in Central European (Poland) and Antarctic Settings (King George Island) |
topic_facet |
rhizosphere microbiome endosphere roots invasive species |
description |
Poa annua (annual bluegrass) is one of the most ubiquitous grass species in the world. In isolated regions of maritime Antarctica, it has become an invasive organism threatening native tundra communities. In this study, we have explored and compared the rhizosphere and root-endosphere dwelling microbial community of P. annua specimens of maritime Antarctic and Central European origin in terms of bacterial phylogenetic diversity and microbial metabolic activity with a geochemical soil background. Our results show that the rhizospheric bacterial community was unique for each sampling site, yet the endosphere communities were similar to each other. However, key plant-associated bacterial taxa such as the Rhizobiaceae family were poorly represented in Antarctic samples, probably due to high salinity and heavy metal concentrations in the soil. Metabolic activity in the Antarctic material was considerably lower than in Central European samples. Antarctic root endosphere showed unusually high numbers of certain opportunistic bacterial groups, which proliferated due to low competition conditions. Thirteen bacterial families were recognized in this study to form a core microbiome of the P. annua root endosphere. The most numerous were the Flavobacteriaceae, suspected to be major contributors to the ecological success of annual bluegrass, especially in harsh, Antarctic conditions. |
format |
Text |
author |
Anna Znój Jakub Grzesiak Jan Gawor Robert Gromadka Katarzyna J. Chwedorzewska |
author_facet |
Anna Znój Jakub Grzesiak Jan Gawor Robert Gromadka Katarzyna J. Chwedorzewska |
author_sort |
Anna Znój |
title |
Bacterial Communities Associated with Poa annua Roots in Central European (Poland) and Antarctic Settings (King George Island) |
title_short |
Bacterial Communities Associated with Poa annua Roots in Central European (Poland) and Antarctic Settings (King George Island) |
title_full |
Bacterial Communities Associated with Poa annua Roots in Central European (Poland) and Antarctic Settings (King George Island) |
title_fullStr |
Bacterial Communities Associated with Poa annua Roots in Central European (Poland) and Antarctic Settings (King George Island) |
title_full_unstemmed |
Bacterial Communities Associated with Poa annua Roots in Central European (Poland) and Antarctic Settings (King George Island) |
title_sort |
bacterial communities associated with poa annua roots in central european (poland) and antarctic settings (king george island) |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2021 |
url |
https://doi.org/10.3390/microorganisms9040811 |
op_coverage |
agris |
geographic |
Antarctic King George Island The Antarctic |
geographic_facet |
Antarctic King George Island The Antarctic |
genre |
Antarc* Antarctic Antarctica King George Island Tundra |
genre_facet |
Antarc* Antarctic Antarctica King George Island Tundra |
op_source |
Microorganisms; Volume 9; Issue 4; Pages: 811 |
op_relation |
Environmental Microbiology https://dx.doi.org/10.3390/microorganisms9040811 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/microorganisms9040811 |
container_title |
Microorganisms |
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9 |
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4 |
container_start_page |
811 |
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1774712799350489088 |