Distribution patterns of Acidobacteriota in different fynbos soils.

The Acidobacteriota is ubiquitous and is considered as one of the major bacterial phyla in soils. The current taxonomic classifications of this phylum are divided into 15 class-level subdivisions (SDs), with only 5 of these SDs containing cultured and fully described species. Within the fynbos biome...

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Main Authors: Tersia Andrea Conradie, Karin Jacobs
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2021-01-01
Series:PLoS ONE
Online Access:https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0248913&type=printable
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author Tersia Andrea Conradie
Karin Jacobs
author_facet Tersia Andrea Conradie
Karin Jacobs
author_sort Tersia Andrea Conradie
collection DOAJ
description The Acidobacteriota is ubiquitous and is considered as one of the major bacterial phyla in soils. The current taxonomic classifications of this phylum are divided into 15 class-level subdivisions (SDs), with only 5 of these SDs containing cultured and fully described species. Within the fynbos biome, the Acidobacteriota has been reported as one of the dominant bacterial phyla, with relative abundances ranging between 4-26%. However, none of these studies reported on the specific distribution and diversity of the Acidobacteriota within these soils. Therefore, in this study we aimed to first determine the relative abundance and diversity of the Acidobacteriota in three pristine fynbos nature reserve soils, and secondly, whether differences in the acidobacterial composition can be attributed to environmental factors, such as soil abiotic properties. A total of 27 soil samples were collected at three nature reserves, namely Jonkershoek, Hottentots Holland, and Kogelberg. The variable V4-V5 region of the 16S rRNA gene was sequenced using the Ion Torrent S5 platform. The mean relative abundance of the Acidobacteriota were 9.02% for Jonkershoek, 14.91% for Kogelberg, and most significantly (p<0.05), 18.42% for Hottentots Holland. A total of 33 acidobacterial operational taxonomic units (OTUs) were identified. The dominant subdivisions identified in all samples included SDs 1, 2, and 3. Significant differences were observed in the distribution and composition of these OTUs between nature reserves. The SD1 were negatively correlated to soil pH, hydrogen (H+), potassium (K+) and carbon (C). In contrast, SD2, was positively correlated to soil pH, phosphorus (P), and K+, and unclassified members of SD3 was positively correlated to H+, K, and C. This study is the first to report on the specific acidobacterial distribution in pristine fynbos soils in South Africa.
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spelling doaj-art-cd6dfaef76b146929af47ae1191747c62025-08-20T02:00:51ZengPublic Library of Science (PLoS)PLoS ONE1932-62032021-01-01163e024891310.1371/journal.pone.0248913Distribution patterns of Acidobacteriota in different fynbos soils.Tersia Andrea ConradieKarin JacobsThe Acidobacteriota is ubiquitous and is considered as one of the major bacterial phyla in soils. The current taxonomic classifications of this phylum are divided into 15 class-level subdivisions (SDs), with only 5 of these SDs containing cultured and fully described species. Within the fynbos biome, the Acidobacteriota has been reported as one of the dominant bacterial phyla, with relative abundances ranging between 4-26%. However, none of these studies reported on the specific distribution and diversity of the Acidobacteriota within these soils. Therefore, in this study we aimed to first determine the relative abundance and diversity of the Acidobacteriota in three pristine fynbos nature reserve soils, and secondly, whether differences in the acidobacterial composition can be attributed to environmental factors, such as soil abiotic properties. A total of 27 soil samples were collected at three nature reserves, namely Jonkershoek, Hottentots Holland, and Kogelberg. The variable V4-V5 region of the 16S rRNA gene was sequenced using the Ion Torrent S5 platform. The mean relative abundance of the Acidobacteriota were 9.02% for Jonkershoek, 14.91% for Kogelberg, and most significantly (p<0.05), 18.42% for Hottentots Holland. A total of 33 acidobacterial operational taxonomic units (OTUs) were identified. The dominant subdivisions identified in all samples included SDs 1, 2, and 3. Significant differences were observed in the distribution and composition of these OTUs between nature reserves. The SD1 were negatively correlated to soil pH, hydrogen (H+), potassium (K+) and carbon (C). In contrast, SD2, was positively correlated to soil pH, phosphorus (P), and K+, and unclassified members of SD3 was positively correlated to H+, K, and C. This study is the first to report on the specific acidobacterial distribution in pristine fynbos soils in South Africa.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0248913&type=printable
spellingShingle Tersia Andrea Conradie
Karin Jacobs
Distribution patterns of Acidobacteriota in different fynbos soils.
PLoS ONE
title Distribution patterns of Acidobacteriota in different fynbos soils.
title_full Distribution patterns of Acidobacteriota in different fynbos soils.
title_fullStr Distribution patterns of Acidobacteriota in different fynbos soils.
title_full_unstemmed Distribution patterns of Acidobacteriota in different fynbos soils.
title_short Distribution patterns of Acidobacteriota in different fynbos soils.
title_sort distribution patterns of acidobacteriota in different fynbos soils
url https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0248913&type=printable
work_keys_str_mv AT tersiaandreaconradie distributionpatternsofacidobacteriotaindifferentfynbossoils
AT karinjacobs distributionpatternsofacidobacteriotaindifferentfynbossoils