Dominant plant species play an important role in regulating bacterial antagonism in terrestrial Antarctica
In Antarctic terrestrial ecosystems, dominant plant species (grasses and mosses) and soil physicochemical properties have a significant influence on soil microbial communities. However, the effects of dominant plants on bacterial antagonistic interactions in Antarctica remain unclear. We hypothesize...
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ftdoajarticles:oai:doaj.org/article:2ed4bb5f1fb14af4adb384b283fc6f10 2023-05-15T13:56:46+02:00 Dominant plant species play an important role in regulating bacterial antagonism in terrestrial Antarctica Beenish Naz Ziyang Liu Lucie A. Malard Izhar Ali Hongxian Song Yajun Wang Xin Li Muhammad Usman Ikram Ali Kun Liu Lizhe An Sa Xiao Shuyan Chen 2023-03-01T00:00:00Z https://doi.org/10.3389/fmicb.2023.1130321 https://doaj.org/article/2ed4bb5f1fb14af4adb384b283fc6f10 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fmicb.2023.1130321/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2023.1130321 https://doaj.org/article/2ed4bb5f1fb14af4adb384b283fc6f10 Frontiers in Microbiology, Vol 14 (2023) Antarctica bacterial antagonism dominant plants edaphic characteristics structural equation model Microbiology QR1-502 article 2023 ftdoajarticles https://doi.org/10.3389/fmicb.2023.1130321 2023-03-26T01:31:15Z In Antarctic terrestrial ecosystems, dominant plant species (grasses and mosses) and soil physicochemical properties have a significant influence on soil microbial communities. However, the effects of dominant plants on bacterial antagonistic interactions in Antarctica remain unclear. We hypothesized that dominant plant species can affect bacterial antagonistic interactions directly and indirectly by inducing alterations in soil physicochemical properties and bacterial abundance. We collected soil samples from two typical dominant plant species; the Antarctic grass Deschampsia antarctica and the Antarctic moss Sanionia uncinata, as well as bulk soil sample, devoid of vegetation. We evaluated bacterial antagonistic interactions, focusing on species from the genera Actinomyces, Bacillus, and Pseudomonas. We also measured soil physicochemical properties and evaluated bacterial abundance and diversity using high-throughput sequencing. Our results suggested that Antarctic dominant plants significantly influenced bacterial antagonistic interactions compared to bulk soils. Using structural equation modelling (SEM), we compared and analyzed the direct effect of grasses and mosses on bacterial antagonistic interactions and the indirect effects through changes in edaphic properties and bacterial abundance. SEMs showed that (1) grasses and mosses had a significant direct influence on bacterial antagonistic interactions; (2) grasses had a strong influence on soil water content, pH, and abundances of Actinomyces and Pseudomonas and (3) mosses influenced bacterial antagonistic interactions by impacting abundances of Actinomyces, Bacillus, and Pseudomonas. This study highlights the role of dominant plants in modulating bacterial antagonistic interactions in Antarctic terrestrial ecosystems. Article in Journal/Newspaper Antarc* Antarctic Antarctica Directory of Open Access Journals: DOAJ Articles Antarctic The Antarctic Frontiers in Microbiology 14 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Antarctica bacterial antagonism dominant plants edaphic characteristics structural equation model Microbiology QR1-502 |
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Antarctica bacterial antagonism dominant plants edaphic characteristics structural equation model Microbiology QR1-502 Beenish Naz Ziyang Liu Lucie A. Malard Izhar Ali Hongxian Song Yajun Wang Xin Li Muhammad Usman Ikram Ali Kun Liu Lizhe An Sa Xiao Shuyan Chen Dominant plant species play an important role in regulating bacterial antagonism in terrestrial Antarctica |
topic_facet |
Antarctica bacterial antagonism dominant plants edaphic characteristics structural equation model Microbiology QR1-502 |
description |
In Antarctic terrestrial ecosystems, dominant plant species (grasses and mosses) and soil physicochemical properties have a significant influence on soil microbial communities. However, the effects of dominant plants on bacterial antagonistic interactions in Antarctica remain unclear. We hypothesized that dominant plant species can affect bacterial antagonistic interactions directly and indirectly by inducing alterations in soil physicochemical properties and bacterial abundance. We collected soil samples from two typical dominant plant species; the Antarctic grass Deschampsia antarctica and the Antarctic moss Sanionia uncinata, as well as bulk soil sample, devoid of vegetation. We evaluated bacterial antagonistic interactions, focusing on species from the genera Actinomyces, Bacillus, and Pseudomonas. We also measured soil physicochemical properties and evaluated bacterial abundance and diversity using high-throughput sequencing. Our results suggested that Antarctic dominant plants significantly influenced bacterial antagonistic interactions compared to bulk soils. Using structural equation modelling (SEM), we compared and analyzed the direct effect of grasses and mosses on bacterial antagonistic interactions and the indirect effects through changes in edaphic properties and bacterial abundance. SEMs showed that (1) grasses and mosses had a significant direct influence on bacterial antagonistic interactions; (2) grasses had a strong influence on soil water content, pH, and abundances of Actinomyces and Pseudomonas and (3) mosses influenced bacterial antagonistic interactions by impacting abundances of Actinomyces, Bacillus, and Pseudomonas. This study highlights the role of dominant plants in modulating bacterial antagonistic interactions in Antarctic terrestrial ecosystems. |
format |
Article in Journal/Newspaper |
author |
Beenish Naz Ziyang Liu Lucie A. Malard Izhar Ali Hongxian Song Yajun Wang Xin Li Muhammad Usman Ikram Ali Kun Liu Lizhe An Sa Xiao Shuyan Chen |
author_facet |
Beenish Naz Ziyang Liu Lucie A. Malard Izhar Ali Hongxian Song Yajun Wang Xin Li Muhammad Usman Ikram Ali Kun Liu Lizhe An Sa Xiao Shuyan Chen |
author_sort |
Beenish Naz |
title |
Dominant plant species play an important role in regulating bacterial antagonism in terrestrial Antarctica |
title_short |
Dominant plant species play an important role in regulating bacterial antagonism in terrestrial Antarctica |
title_full |
Dominant plant species play an important role in regulating bacterial antagonism in terrestrial Antarctica |
title_fullStr |
Dominant plant species play an important role in regulating bacterial antagonism in terrestrial Antarctica |
title_full_unstemmed |
Dominant plant species play an important role in regulating bacterial antagonism in terrestrial Antarctica |
title_sort |
dominant plant species play an important role in regulating bacterial antagonism in terrestrial antarctica |
publisher |
Frontiers Media S.A. |
publishDate |
2023 |
url |
https://doi.org/10.3389/fmicb.2023.1130321 https://doaj.org/article/2ed4bb5f1fb14af4adb384b283fc6f10 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
Frontiers in Microbiology, Vol 14 (2023) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fmicb.2023.1130321/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2023.1130321 https://doaj.org/article/2ed4bb5f1fb14af4adb384b283fc6f10 |
op_doi |
https://doi.org/10.3389/fmicb.2023.1130321 |
container_title |
Frontiers in Microbiology |
container_volume |
14 |
_version_ |
1766264353816838144 |