The core bacteriobiome of Côte d’Ivoire soils across three vegetation zones
The growing understanding that soil bacteria play a critical role in ecosystem servicing has led to a number of large-scale biogeographical surveys of soil microbial diversity. However, most of such studies have focused on northern hemisphere regions and little is known of either the detailed struct...
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Published in | Frontiers in microbiology Vol. 14; p. 1220655 |
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Main Authors | , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Frontiers Media S.A
24.08.2023
|
Subjects | |
Online Access | Get full text |
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Summary: | The growing understanding that soil bacteria play a critical role in ecosystem servicing has led to a number of large-scale biogeographical surveys of soil microbial diversity. However, most of such studies have focused on northern hemisphere regions and little is known of either the detailed structure or function of soil microbiomes of sub-Saharan African countries. In this paper, we report the use of high-throughput amplicon sequencing analyses to investigate the biogeography of soil bacteria in soils of Côte d’Ivoire. 45 surface soil samples were collected from Côte d’Ivoire, representing all major biomes, and bacterial community composition was assessed by targeting the V4-V5 hypervariable region of the 16S ribosomal RNA gene. Causative relationships of both soil physicochemical properties and climatic data on bacterial community structure were infered. 48 phyla, 92 classes, 152 orders, 356 families, and 1,234 genera of bacteria were identified. The core bacteriobiome consisted of 10 genera ranked in the following order of total abundance:
Gp6
,
Gaiella
,
Spartobacteria_genera_incertae_sedis
,
WPS-1_genera_incertae_sedis
,
Gp4
,
Rhodoplanes
,
Pseudorhodoplanes
,
Bradyrhizobium
,
Subdivision3_genera_incertae_sedis
, and
Gp3
. Some of these genera, including
Gp4
and
WPS-1_genera_incertae_sedis
, were unequally distributed between forest and savannah areas while other taxa (
Bradyrhizobium
and
Rhodoplanes)
were consistently found in all biomes. The distribution of the core genera, together with the 10 major phyla, was influenced by several environmental factors, including latitude, pH, Al and K. The main pattern of distribution that was observed for the core bacteriobiome was the vegetation-independent distribution scheme. In terms of predicted functions, all core bacterial taxa were involved in assimilatory sulfate reduction, while atmospheric dinitrogen (N
2
) reduction was only associated with the genus
Bradyrhizobium
. This work, which is one of the first such study to be undertaken at this scale in Côte d’Ivoire, provides insights into the distribution of bacterial taxa in Côte d’Ivoire soils, and the findings may serve as biological indicator for land management in Côte d’Ivoire. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-3 content type line 23 ObjectType-Review-1 Reviewed by: Yu-Wei Wu, Taipei Medical University, Taiwan; Tessa E. Reid, Rothamsted Research, United Kingdom Edited by: Richard Allen White III, University of North Carolina at Charlotte, Charlotte, United States |
ISSN: | 1664-302X 1664-302X |
DOI: | 10.3389/fmicb.2023.1220655 |