Editorial: Acidobacteria – Towards Unraveling the Secrets of a Widespread, Though Enigmatic, Phylum

Huber, Katharina J.; Pester, Michael; Eichorst, Stephanie A.; Navarrete, Acácio Aparecido; Foesel, Bärbel U.

doi:10.3389/fmicb.2022.960602

Cited by 6 publications

(4 citation statements)

References 52 publications

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“…However, it should be noted that network analyses are correlative and additional functional studies are required to confirm this. Nonetheless, our results are consistent with the literature, which confirms Acidobacteriota roles in C‐ and N‐cycling and plant health, among other functions (Huber et al., 2022 ; Kalam et al., 2020 ). These ecological functions could conceivably influence rhizosphere bacterial interactions.…”

Section: Discussionsupporting

confidence: 93%

Light–dark cycles may influence in situ soil bacterial networks and diurnally‐sensitive taxa

Fickling,

Abbott,

Brame

et al. 2024

Ecology and Evolution

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Soil bacterial taxa have important functional roles in ecosystems (e.g. nutrient cycling, soil formation, plant health). Many factors influence their assembly and regulation, with land cover types (e.g. open woodlands, grasslands), land use types (e.g. nature reserves, urban green space) and plant–soil feedbacks being well‐studied factors. However, changes in soil bacterial communities in situ over light–dark cycles have received little attention, despite many plants and some bacteria having endogenous circadian rhythms that could influence soil bacterial communities. We sampled surface soils in situ across 24‐h light–dark cycles (at 00:00, 06:00, 12:00, 18:00) at two land cover types (remnant vegetation vs. cleared, grassy areas) and applied 16S rRNA amplicon sequencing to investigate changes in bacterial communities. We show that land cover type strongly affected soil bacterial diversity, with soils under native vegetation expressing 15.4%–16.4% lower alpha diversity but 4.9%–10.6% greater heterogeneity than soils under cleared vegetation. In addition, we report time‐dependent and site‐specific changes in bacterial network complexity and between 598–922 ASVs showing significant changes in relative abundance across times. Native site node degree (bacterial interactions) at the phylum level was 16.0% higher in the early morning than in the afternoon/evening. Our results demonstrate for the first time that light–dark cycles have subtle yet important effects on soil bacterial communities in situ and that land cover influences these dynamics. We provide a new view of soil microbial ecology and suggest that future studies should consider the time of day when sampling soil bacteria.

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Section: Discussionsupporting

confidence: 93%

Light–dark cycles may influence in situ soil bacterial networks and diurnally‐sensitive taxa

Fickling,

Abbott,

Brame

et al. 2024

Ecology and Evolution

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show abstract

“…This suggests that Acidobacteriota may have a fundamental mutualistic role to play in the rhizosphere. This is corroborated by the literature, which confirms Acidobacteriota roles in C-and N-cycling and plant health, amongst other functions (Kalam et al, 2020;Huber et al, 2022). These ecological functions could conceivably influence rhizosphere bacterial interactions.…”

Section: Effect Of Land Cover Type On Soil Bacterial Diversitysupporting

confidence: 81%

Light-dark cycles influence soil bacterial composition in situ

Fickling

Abbott

Brame

et al. 2023

Preprint

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Soil bacterial taxa have important functional roles in ecosystems (e.g., nutrient cycling, soil formation, plant health). Many factors influence their assembly and regulation, with land cover type (e.g., remnant vegetation, agriculture, urban parks) and plant-soil feedbacks being two well studied factors. However, changes in soil bacterial communities in situ over light-dark cycles have received little attention, despite plants and some bacteria having endogenous circadian rhythms that could influence soil bacterial communities. We sampled surface soils in situ across 24-hour light-dark cycles (at 00:00, 06:00, 12:00, 18:00) at two land cover types (remnant vegetation vs. cleared, grassy areas) and applied 16S rRNA amplicon sequencing to investigate changes in bacterial communities. We show that land cover type strongly affected soil bacterial diversity, with soils under native vegetation expressing 15.41-16.42% lower alpha diversity but 4.92-10.67% greater heterogeneity than soils under cleared vegetation. In addition, we report time-dependent and site-specific changes in bacterial network complexity and between 598-922 ASVs showing significant changes in relative abundance across times. Native site node degree (bacterial interactions) at phylum level was 16.0% higher in the early morning hours compared to the afternoon/evening. Our results demonstrate for the first time that light-dark cycles have subtle yet important effects on the composition of soil bacterial communities in situ and that land cover influences these dynamics. We provide a new view of soil microbial ecology and suggest that future studies should consider the time of day when sampling soil bacteria.

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“… Wang et al (2020) observed that members of the Chloroflexi phylum play a crucial role in nitrogen removal. Similarly, Huber et al (2022) demonstrated that Acidobacteriota not only remove nitrogen but also phosphorus from wastewater and act as organic carbon degraders. Mujakić et al (2023) reported that Gemmatimonadota is involved in the removal of various pollutants, including nitrogen and phosphorus.…”

Section: Discussionmentioning

confidence: 98%

Composition of the microbial community in surface flow-constructed wetlands for wastewater treatment

Ali,

Min,

et al. 2024

Front. Microbiol.

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Traditionally constructed wetlands face significant limitations in treating tailwater from wastewater treatment plants, especially those associated with sugar mills. However, the advent of novel modified surface flow constructed wetlands offer a promising solution. This study aimed to assess the microbial community composition and compare the efficiencies of contaminant removal across different treatment wetlands: CW1 (Brick rubble, lignite, and Lemna minor L.), CW2 (Brick rubble and lignite), and CW3 (Lemna minor L.). The study also examined the impact of substrate and vegetation on the wetland systems. For a hydraulic retention time of 7 days, CW1 successfully removed more pollutants than CW2 and CW3. CW1 demonstrated removal rates of 72.19% for biochemical oxygen demand (BOD), 74.82% for chemical oxygen demand (COD), 79.62% for NH4+-N, 77.84% for NO3−-N, 87.73% for ortho phosphorous (OP), 78% for total dissolved solids (TDS), 74.1% for total nitrogen (TN), 81.07% for total phosphorous (TP), and 72.90% for total suspended solids (TSS). Furthermore, high-throughput sequencing analysis of the 16S rRNA gene revealed that CW1 exhibited elevated Chao1, Shannon, and Simpson indices, with values of 1324.46, 8.8172, and 0.9941, respectively. The most common bacterial species in the wetland system were Proteobacteria, Spirochaetota, Bacteroidota, Desulfobacterota, and Chloroflexi. The denitrifying bacterial class Rhodobacteriaceae also had the highest content ratio within the wetland system. These results confirm that CW1 significantly improves the performance of water filtration. Therefore, this research provides valuable insights for wastewater treatment facilities aiming to incorporate surface flow-constructed wetland tailwater enhancement initiatives.

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Editorial: Acidobacteria – Towards Unraveling the Secrets of a Widespread, Though Enigmatic, Phylum

Cited by 6 publications

References 52 publications

Light–dark cycles may influence in situ soil bacterial networks and diurnally‐sensitive taxa

Light–dark cycles may influence in situ soil bacterial networks and diurnally‐sensitive taxa

Light-dark cycles influence soil bacterial composition in situ

Composition of the microbial community in surface flow-constructed wetlands for wastewater treatment

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