Microbial interactions for nutrient acquisition in soil: Miners, scavengers, and carriers

Soil Biology and Biochemistry, Journal Year: 2023, Volume and Issue: 188, P. 109215 - 109215

Published: Oct. 24, 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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Microbial life‐history strategies mediate microbial carbon pump efficacy in response to N management depending on stoichiometry of microbial demand

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(5)

Published: May 1, 2024

The soil microbial carbon pump (MCP) is increasingly acknowledged as being directly linked to organic (SOC) accumulation and stability. Given the close coupling of (C) nitrogen (N) cycles constraints imposed by their stoichiometry on growth, N addition might affect growth strategies with potential consequences for necromass formation However, this topic remains largely unexplored. Based two multi-level fertilizer experiments over 10 years in soils contrasting fertility located North (Cambisol, carbon-poor) Southwest (Luvisol, carbon-rich), we hypothesized that different resource demands microorganism elicit a trade-off (Y-strategy) resource-acquisition (A-strategy) response addition, consequently We combined measurements metrics (MCP efficacy) stability (chemical composition mineral associated carbon) changes life history (assessed via metagenomes enzymatic activity analyses). contribution SOC decreased Cambisol, but increased Luvisol. Soil displayed distinct responses after amendment: shift toward A-strategy (Cambisol) or Y-strategy (Luvisol). These divergent are owing stoichiometric imbalance between availability C N, which presented very patterns soils. partial correlation analysis further confirmed high aggravated demand, shifting community strategy reduced Cambisol. In contrast, had positive direct effect MCP efficacy Luvisol, greatly enhanced Such findings provide mechanistic insights into regulation efficacy, how mediated site-specific trade-offs strategies, contribute improving our comprehension sequestration optimization agricultural management.

Language: Английский

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Microbial-driven mechanisms for the effects of heavy metals on soil organic carbon storage: A global analysis

Environment International, Journal Year: 2024, Volume and Issue: unknown, P. 108467 - 108467

Published: Jan. 1, 2024

Heavy metal (HM) enrichment is closely related to soil organic carbon (SOC) pools in terrestrial ecosystems, which are deeply intertwined with microbial processes. However, the influence of HMs on SOC remains contentious terms magnitude and direction. A global analysis 155 studies was conducted integrate synergistic responses microorganisms HM enrichment. significant increase 13.6 % content observed soils exposed HMs. The response primarily depends properties habitat conditions, particularly initial content, mean annual precipitation (MAP), pH, temperature (MAT). presence resulted decreases activities key enzymes, including 31.9 for dehydrogenase, 24.8 β-glucosidase, 35.8 invertase, 24.3 cellulose. also exerted inhibitory effects biomass (MBC) (26.6 %), respiration (MR) (19.7 bacterial Shannon index (3.13 %) but elevated metabolic quotient (qCO2) (20.6 %). enrichment-induced changes exhibited positive correlations MBC (r = 0.70, p < 0.01) qCO2 0.50, 0.01), while it negatively associated β-glucosidase activity 0.72, MR 0.39, 0.01). These findings suggest that storage mainly attributable inhibition enzymes under Overall, this meta-analysis highlights habitat-dependent provides a comprehensive evaluation dynamics an HM-rich environment.

Language: Английский

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Long-term impact of tillage on microbial communities of an Eastern European Chernozem

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 3, 2025

Language: Английский

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Experimental evidence for viral impact on microbial community, nitrification, and denitrification in an agriculture soil

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 489, P. 137532 - 137532

Published: Feb. 8, 2025

Language: Английский

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Positive effects of crop rotation on soil aggregation and associated organic carbon are mainly controlled by climate and initial soil carbon content: A meta-analysis

Agriculture Ecosystems & Environment, Journal Year: 2023, Volume and Issue: 355, P. 108600 - 108600

Published: May 25, 2023

Language: Английский

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Pathways of soil organic carbon accumulation are related to microbial life history strategies in fertilized agroecosystems

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 927, P. 172191 - 172191

Published: April 6, 2024

Language: Английский

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Long-term biogas slurry application increases microbial necromass but not plant lignin contribution to soil organic carbon in paddy soils as regulated by fungal community

Waste Management, Journal Year: 2024, Volume and Issue: 175, P. 254 - 264

Published: Jan. 20, 2024

Language: Английский

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Effects of sustainable agricultural practices on soil microbial diversity, composition, and functions

Agriculture Ecosystems & Environment, Journal Year: 2024, Volume and Issue: 370, P. 109053 - 109053

Published: May 4, 2024

Language: Английский

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