Mechanisms and implications of bacterial–fungal competition for soil resources

The ISME Journal, Journal Year: 2024, Volume and Issue: 18(1)

Published: Jan. 1, 2024

Abstract Elucidating complex interactions between bacteria and fungi that determine microbial community structure, composition, functions in soil, as well regulate carbon (C) nutrient fluxes, is crucial to understand biogeochemical cycles. Among the various interactions, competition for resources main factor determining adaptation niche differentiation these two big groups soil. This because C energy limitations growth are a rule rather than an exception. Here, we review demands of fungi—the major kingdoms soil—the mechanisms their other resources, leading differentiation, global change impacts on this competition. The normalized utilization preference showed 1.4–5 times more efficient uptake simple organic compounds substrates, whereas 1.1–4.1 effective utilizing compounds. Accordingly, strongly outcompete while take advantage Bacteria also compete with products released during degradation substrates. Based specifics, differentiated spatial, temporal, chemical niches will increase under five changes including elevated CO2, N deposition, soil acidification, warming, drought. Elevated warming bacterial dominance, acidification drought fungal competitiveness.

Language: Английский

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Microbial diversity declines in warmed tropical soil and respiration rise exceed predictions as communities adapt

Nature Microbiology, Journal Year: 2022, Volume and Issue: 7(10), P. 1650 - 1660

Published: Sept. 5, 2022

Language: Английский

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Soil properties, microbial diversity, and changes in the functionality of saline-alkali soil are driven by microplastics

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 446, P. 130712 - 130712

Published: Jan. 3, 2023

Language: Английский

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Microbially mediated mechanisms underlie soil carbon accrual by conservation agriculture under decade-long warming

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Jan. 8, 2024

Abstract Increasing soil organic carbon (SOC) in croplands by switching from conventional to conservation management may be hampered stimulated microbial decomposition under warming. Here, we test the interactive effects of agricultural and warming on SOC persistence underlying mechanisms a decade-long controlled experiment wheat-maize cropping system. Warming increased content accelerated fungal community temporal turnover agriculture (no tillage, chopped crop residue), but not (annual residue removed). Microbial use efficiency (CUE) growth linearly over time, with stronger positive after 5 years agriculture. According structural equation models, these increases arose greater inputs crops, which indirectly CUE via changes communities. As result, necromass 28 53%, emerging as strongest predictor content. Collectively, our results demonstrate how climatic factors can interact alter composition, physiology functions and, turn, formation accrual croplands.

Language: Английский

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Geographical, climatic, and soil factors control the altitudinal pattern of rhizosphere microbial diversity and its driving effect on root zone soil multifunctionality in mountain ecosystems

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 904, P. 166932 - 166932

Published: Sept. 9, 2023

Shifts in rhizosphere soil microorganisms of dominant plants' response to climate change profoundly impact mountain ecosystem multifunctionality; relatively little is known about the relationship between them and how they depend on long-term environmental drivers. Here, we conducted analyses microbial altitudinal pattern, community assembly, co-occurrence network 6 plants six typical vegetation zones ranging from 1350 2900 m (a.s.l.) Helan Mountains by absolute quantitative sequencing technology, finally related microbiomes root zone multifunctionality ('soil multifunctionality' hereafter), dependence was explored. It found that pattern bacterial fungal diversities differed significantly. Higher more potential interactions Stipa breviflora Carex coninux were at lowest highest altitudes. Bacterial α diversity, identity some taxa, had significant positive or negative effects multifunctionality. The effect sizes diversity greater than those effects. These results indicated balance microbes determines As number phylum level increases, there will be a net gain Our study reveals geographical climatic factors can directly modulate properties thereby affecting driving multifunctionality, points rather fungi being strongly associated with This work has important ecological implications for predicting multiple environment-plant-soil-microorganisms ecosystems respond future change.

Language: Английский

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Land conversion to agriculture induces taxonomic homogenization of soil microbial communities globally

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: April 29, 2024

Abstract Agriculture contributes to a decline in local species diversity and above- below-ground biotic homogenization. Here, we conduct continental survey using 1185 soil samples compare microbial communities from natural ecosystems (forest, grassland, wetland) with converted agricultural land. We combine our results global meta-analysis of available sequencing data that cover more than 2400 across six continents. Our combined demonstrate land conversion taxonomic functional homogenization bacteria, mainly driven by the increase geographic ranges taxa croplands. find 20% phylotypes are decreased 23% increased conversion, croplands enriched Chloroflexi, Gemmatimonadota, Planctomycetota, Myxcoccota Latescibacterota . Although there is no significant difference composition between land, genes involved nitrogen fixation, phosphorus mineralization transportation depleted cropland. provide insight into consequences land-use change on diversity.

Language: Английский

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Effects of simulated warming on soil microbial community diversity and composition across diverse ecosystems

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 911, P. 168793 - 168793

Published: Nov. 22, 2023

Language: Английский

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How many species will Earth lose to climate change?

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(1)

Published: Jan. 1, 2024

Abstract Climate change may be an important threat to global biodiversity, potentially leading the extinction of numerous species. But how many? There have been various attempts answer this question, sometimes yielding strikingly different estimates. Here, we review these estimates, assess their disagreements and methodology, explore might reach better Large‐scale studies estimated ~1% sampled species up ~70%, even when using same approach (species distribution models; SDMs). Nevertheless, worst‐case estimates often converge near 20%–30% loss, many differences shrink similar assumptions. We perform a new recent SDM studies, which show ~17% loss climate under scenarios. However, shows that are biased by excluding most vulnerable (those known from few localities), lead underestimating loss. Conversely, our analyses responses fundamental assumption species' climatic niches do not over time, frequently violated. For example, find mean rates positive thermal niche across ~0.02°C/year. Yet, still slower than projected ~3–4 fold. Finally, levels can combining group‐specific with projections richness (including cryptic insect species). These preliminary tentatively forecast climate‐related 14%–32% macroscopic in next ~50 years, including 3–6 million (or more) animal plant species, intermediate

Language: Английский

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Experimental warming accelerates positive soil priming in a temperate grassland ecosystem

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Feb. 8, 2024

Abstract Unravelling biosphere feedback mechanisms is crucial for predicting the impacts of global warming. Soil priming, an effect fresh plant-derived carbon (C) on native soil organic (SOC) decomposition, a key mechanism that could release large amounts C into atmosphere. However, climate warming priming remain elusive. Here, we show experimental accelerates by 12.7% in temperate grassland. Warming alters bacterial communities, with 38% unique active phylotypes detected under The functional genes essential decomposition are also stimulated, which be linked to effects. We incorporate lab-derived information ecosystem model showing parameter uncertainty can reduced 32–37%. Model simulations from 2010 2016 indicate increase warming, 9.1% rise priming-induced CO 2 emissions. If our findings generalized other ecosystems over extended period time, play important role terrestrial cycle feedbacks and change.

Language: Английский

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Immune-mediated disease caused by climate change-associated environmental hazards: mitigation and adaptation

Frontiers in Science, Journal Year: 2024, Volume and Issue: 2

Published: April 4, 2024

Global warming and climate change have increased the pollen burden frequency intensity of wildfires, sand dust storms, thunderstorms, heatwaves—with concomitant increases in air pollution, heat stress, flooding. These environmental stressors alter human exposome trigger complex immune responses. In parallel, pollutants, allergens, other factors increase risks skin mucosal barrier disruption microbial dysbiosis, while a loss biodiversity reduced exposure to diversity impairs tolerogenic development. The resulting dysregulation is contributing an immune-mediated diseases such as asthma allergic diseases, autoimmune cancer. It now abundantly clear that multisectoral, multidisciplinary, transborder efforts based on Planetary Health One approaches (which consider dependence health environment natural ecosystems) are urgently needed adapt mitigate effects change. Key actions include reducing emissions improving quality (through fossil fuel use), providing safe housing (e.g., weatherization), diets (i.e., diversity) agricultural practices, increasing green spaces. There also pressing need for collaborative, multidisciplinary research better understand pathophysiology context New data science techniques, biomarkers, economic models should be used measure impact disease, inform mitigation adaptation efforts, evaluate their effectiveness. Justice, equity, diversity, inclusion (JEDI) considerations integral these address disparities

Language: Английский

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