Specialized metabolic functions of keystone taxa sustain soil microbiome stability

Microbiome, Journal Year: 2021, Volume and Issue: 9(1)

Published: Jan. 31, 2021

The relationship between biodiversity and soil microbiome stability remains poorly understood. Here, we investigated the impacts of bacterial phylogenetic diversity on functional traits microbiome. Communities differing in were generated by inoculating serially diluted suspensions into sterilized soil, was assessed detecting community variations under various pH levels. taxonomic features potential detected DNA sequencing.We found that communities with higher tended to be more stable, implying microbiomes are resistant perturbation. Functional gene co-occurrence network machine learning classification analyses identified specialized metabolic functions, especially "nitrogen metabolism" "phosphonate phosphinate metabolism," as keystone functions. Further annotation functions carried out specific taxa, including Nitrospira Gemmatimonas, among others.This study provides new insights our understanding relationships ecosystem highlights embedded taxa may essential for stability. Video abstract.

Language: Английский

---

Soil plastispheres as hotspots of antibiotic resistance genes and potential pathogens

The ISME Journal, Journal Year: 2021, Volume and Issue: 16(2), P. 521 - 532

Published: Aug. 28, 2021

Abstract In the Anthropocene, increasing pervasive plastic pollution is creating a new environmental compartment, plastisphere. How plastisphere affects microbial communities and antibiotic resistance genes (ARGs) an issue of global concern. Although this has been studied in aquatic ecosystems, our understanding microbiota soil ecosystems remains poor. Here, we investigated ARGs four types microplastics (MPs) from diverse environments, revealed effects manure, temperature, moisture on them. Our results showed that MPs select for plastisphere, these are involved metabolic pathways, indicating they could drive ecological processes ecosystem. The relationship within bacterial zero-radius operational taxonomic units (zOTUs) was predominantly positive, neutral appeared to dominate community assembly. However, deterministic were more important explaining variance plastispheres. A range potential pathogens detected which enriched compared but varied across types. We further found addition manure elevation temperature all enhance plastispheres, increase with moisture. These suggested plastispheres habitats increased pathogen abundance spatially co-located under change. findings provided insights into ecology microbiome resistome

Language: Английский

---

Microbial Community Resilience across Ecosystems and Multiple Disturbances

Microbiology and Molecular Biology Reviews, Journal Year: 2021, Volume and Issue: 85(2)

Published: March 30, 2021

The ability of ecosystems to withstand disturbances and maintain their functions is being increasingly tested as rates change intensify due climate other human activities. Microorganisms are crucial players underpinning ecosystem functions, the recovery microbial communities from therefore a key part complex processes determining fate functioning. However, despite global environmental consisting numerous pressures, it unclear controversial how multiple affect community stability what consequences this has for functions. This particularly case those or compounded that occur more frequently than normal time. aim review provide an overview mechanisms can govern responses microbes across aquatic terrestrial ecosystems. We first summarize discuss properties influence resilience in soil biomes determine whether there generally applicable principles. Following, we focus on interactions resulting inherent characteristics disturbances, such nature disturbance, timing, chronology lead nonadditive effects modulating response microorganisms.

Language: Английский

---

Changes in root‐exudate‐induced respiration reveal a novel mechanism through which drought affects ecosystem carbon cycling

New Phytologist, Journal Year: 2019, Volume and Issue: 224(1), P. 132 - 145

Published: June 20, 2019

Root exudates play an important role in ecosystem response to climate change, but the functional consequences of drought-induced changes quality root are unknown. Here, we addressed this knowledge gap a unique experimental approach. We subjected two common grassland species that differ widely their growth strategies and systems, grass Holcus lanatus forb Rumex acetosa, 2 wk drought. collected soils at end drought after recovery readded all fully reciprocal set-up measure root-exudate-induced respiration. found soil treatment was unimportant for determining By contrast, from plants had experienced clearly triggered more respiration than undroughted plants. Importantly, increased compensated lower rates exudation droughted Our findings reveal novel mechanism through which can continue affect carbon cycling, potential plant strategy facilitate regrowth stimulating microbial activity. These have implications understanding

Language: Английский

---

Ecological memory of recurrent drought modifies soil processes via changes in soil microbial community

Nature Communications, Journal Year: 2021, Volume and Issue: 12(1)

Published: Sept. 6, 2021

Climate change is altering the frequency and severity of drought events. Recent evidence indicates that may produce legacy effects on soil microbial communities. However, it unclear whether precedent events lead to ecological memory formation, i.e., capacity past influence current ecosystem response trajectories. Here, we utilize a long-term field experiment in mountain grassland central Austria with an experimental layout comparing 10 years recurrent single event ambient conditions. We show droughts increase dissimilarity communities compared control events, enhance multifunctionality during (calculated via measurements potential enzymatic activities, nutrients, biomass stoichiometry belowground net primary productivity). Our results indicate community composition changes concert its functioning, consequences for processes. The formation under resilience functioning against future

Language: Английский

---

Negative effects of multiple global change factors on soil microbial diversity

Soil Biology and Biochemistry, Journal Year: 2021, Volume and Issue: 156, P. 108229 - 108229

Published: April 1, 2021

Language: Английский

---

Can moisture affect temperature dependences of microbial growth and respiration?

Soil Biology and Biochemistry, Journal Year: 2021, Volume and Issue: 156, P. 108223 - 108223

Published: March 20, 2021

It is of great importance to understand how terrestrial ecosystems will respond global changes. However, most experimental approaches have focused on single factors. In natural systems, moisture and temperature often change simultaneously, they can interact shape microbial responses. Even though soil are very important factors controlling activity, there disagreement the dependence rates as well their sensitivity when both variables simultaneously. Here we created a gradient determined high resolution intrinsic dependences for bacterial fungal growth respiration rates. We found that decreased with lower increased higher temperatures until optimum values. Additionally, independence between rate modifiers. also sensitivities (Q10) were not affected by changes in moisture. This provided an framework validate assumptions modifiers used ecosystem cycling models (GCMs).

Language: Английский

---

Core phylotypes enhance the resistance of soil microbiome to environmental changes to maintain multifunctionality in agricultural ecosystems

Global Change Biology, Journal Year: 2022, Volume and Issue: 28(22), P. 6653 - 6664

Published: Aug. 13, 2022

Agricultural ecosystems are facing increasing environmental changes. Revealing ecological stability of belowground organisms is key to developing management strategies that maintain agricultural ecosystem services in a changing world. Here, we collected soils from adjacent pairs maize and rice fields along large spatial scale across Eastern Southeast China investigate the importance core microbiota as predictor resistance soil microbiome (e.g. bacteria, fungi protist) climate changes nutrient fertilization, their effect on multiple functions, representing for crop growth health agro-ecosystems. Soil exhibited stronger than soils, by considering aspects index, example, community, phylogenetic conservation network complexity. Community showed geographic pattern, with higher at lower latitudes, suggesting warmer regions. Particularly, highlighted role phylotypes enhancing community microbiome, which was essential maintenance multifunctionality ecosystems. Our results represent significant advance linking therefore forecasting agro-ecosystems dynamics response ongoing These suggest should be considered factor sustainability productivity under global change scenarios.

Language: Английский

---

Soil plastisphere: Exploration methods, influencing factors, and ecological insights

Journal of Hazardous Materials, Journal Year: 2022, Volume and Issue: 430, P. 128503 - 128503

Published: Feb. 16, 2022

Language: Английский

---

Soil microbial diversity and network complexity drive the ecosystem multifunctionality of temperate grasslands under changing precipitation

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 906, P. 167217 - 167217

Published: Sept. 24, 2023

Language: Английский

---