Protist communities are more sensitive to nitrogen fertilization than other microorganisms in diverse agricultural soils

Microbiome, Journal Year: 2019, Volume and Issue: 7(1)

Published: Feb. 27, 2019

Agricultural food production is at the base of and fodder, with fertilization having fundamentally continuously increased crop yield over last decades. The performance crops intimately tied to their microbiome as they together form holobionts. importance for plant is, however, notoriously ignored in agricultural systems disconnects dependency plants often plant-beneficial microbial processes. Moreover, we lack a holistic understanding how regimes affect soil microbiome. Here, examined effect 2-year regime (no nitrogen control, fertilization, plus straw amendment) on entire microbiomes (bacteria, fungi, protist) three common types cropped maize two seasons.We found that application fertilizers more strongly affected protist than bacterial fungal communities. Nitrogen indirectly reduced diversity through changing abiotic properties communities which differed between sampling seasons. fertilizer amendment had greater effects physicochemical addition alone. even straw, network complexity, suggesting tightened interactions.Together, our results suggest protists are most susceptible component fertilizers. As also exhibit strongest seasonal dynamics, serve sensitive bioindicators changes. Changes might have long-term if some key hubs govern complexities top predators altered. This study serves stepping stone promote promising agents targeted engineering help reducing exogenous unsustainably high pesticide applications.

Language: Английский

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Aridity-driven shift in biodiversity–soil multifunctionality relationships

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

Published: Sept. 9, 2021

Relationships between biodiversity and multiple ecosystem functions (that is, multifunctionality) are context-dependent. Both plant soil microbial diversity have been reported to regulate multifunctionality, but how their relative importance varies along environmental gradients remains poorly understood. Here, we relate multifunctionality across 130 dryland sites a 4,000 km aridity gradient in northern China. Our results show strong positive association species richness less arid regions, whereas diversity, particular of fungi, is positively associated with more regions. This shift the relationships or occur at an level ∼0.8, boundary semiarid climates, which predicted advance geographically ∼28% by end current century. study highlights that loss plants microorganisms may especially consequences under low high conditions, respectively, calls for climate-specific conservation strategies mitigate effects aridification.

Language: Английский

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Co-occurrence networks reveal more complexity than community composition in resistance and resilience of microbial communities

Nature Communications, Journal Year: 2022, Volume and Issue: 13(1)

Published: July 5, 2022

Plant response to drought stress involves fungi and bacteria that live on in plants the rhizosphere, yet stability of these myco- micro-biomes remains poorly understood. We investigate resistance resilience an agricultural system using both community composition microbial associations. Here we show tests fundamental hypotheses fungi, as compared bacteria, are (i) more resistant but (ii) less resilient when rewetting relieves stress, found robust support at level composition. Results were complex all-correlations co-occurrence networks. In general, disrupts networks based significant positive correlations among between fungi. Surprisingly, functional guilds rhizosphere leaf strengthened by drought, same was seen for involving arbuscular mycorrhizal rhizosphere. also gradient hypothesis because increased relative frequency correlations.

Language: Английский

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Plant Trait Networks: Improved Resolution of the Dimensionality of Adaptation

Trends in Ecology & Evolution, Journal Year: 2020, Volume and Issue: 35(10), P. 908 - 918

Published: June 25, 2020

Functional traits are frequently used to evaluate plant adaptation across environments. Yet, tend have multiple functions and interactions, which cannot be accounted for in traditional correlation analyses. Plant trait networks (PTNs) clarify complex relationships among traits, enable the calculation of metrics topology coordination importance given PTNs, how they shift communities. Recent studies PTNs provide new insights into some important topics, including dimensionality, spectra (including leaf economic spectrum), stoichiometric principles, variation phenotypic integration along gradients resource availability. improved resolution dimensions scales responses shifting resources, disturbance regimes, global change.

Language: Английский

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Network analysis reveals the strengthening of microbial interaction in biological soil crust development in the Mu Us Sandy Land, northwestern China

Soil Biology and Biochemistry, Journal Year: 2020, Volume and Issue: 144, P. 107782 - 107782

Published: March 17, 2020

Language: Английский

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Linking soil fungi to bacterial community assembly in arid ecosystems

iMeta, Journal Year: 2022, Volume and Issue: 1(1)

Published: Feb. 24, 2022

Abstract Revealing the roles of biotic factors in driving community assembly, which is crucial for understanding biodiversity and ecosystem functions, a fundamental but infrequently investigated subject microbial ecology. Here, combining cross‐biome observational study with an experimental microcosm study, we provided evidence to reveal major (i.e., soil fungi cross‐kingdom species associations) determining bacterial biogeography assembly complex terrestrial ecosystems arid regions northwest China. The results showed that fungal richness mediates balance processes communities, stochastic decreased increasing richness. Our further suggest predicted increase aridity conditions due climate change will reduce α‐diversity, particularly desert soils subsurface layer, induce more negative associations. Together, our represents significant advance linking mechanisms underlying biogeographic patterns under land‐use scenarios.

Language: Английский

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Decreased soil multifunctionality is associated with altered microbial network properties under precipitation reduction in a semiarid grassland

iMeta, Journal Year: 2023, Volume and Issue: 2(2)

Published: May 1, 2023

Our results reveal different responses of soil multifunctionality to increased and decreased precipitation. By linking microbial network properties functions, we also show that complexity potentially competitive interactions are key drivers multifunctionality.

Language: Английский

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Afforestation can lower microbial diversity and functionality in deep soil layers in a semiarid region

Global Change Biology, Journal Year: 2022, Volume and Issue: 28(20), P. 6086 - 6101

Published: July 9, 2022

Afforestation is an effective approach to rehabilitate degraded ecosystems, but often depletes deep soil moisture. Presently, it not known how afforestation-induced decrease in moisture affects microbial community and functionality, hindering our ability understand the sustainability of rehabilitated ecosystems. To address this issue, we examined impacts 20 years afforestation on bacterial community, co-occurrence pattern, functionalities along vertical profile (0-500 cm depth) a semiarid region China's Loess Plateau. We showed that effects with deep-rooted legume tree cropland were greater than top layers, resulting decreased beta diversity, more responsive taxa functional groups, increased homogeneous selection, network robustness soils (120-500 cm). Organic carbon nitrogen decomposition rates multifunctionality also significantly by afforestation, limitation soils. Moreover, changes functionality layer was largely related Such negative should be fully considered for assessing afforestation's eco-environment ecosystems because have important influence forest arid climates.

Language: Английский

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Precipitation balances deterministic and stochastic processes of bacterial community assembly in grassland soils

Soil Biology and Biochemistry, Journal Year: 2022, Volume and Issue: 168, P. 108635 - 108635

Published: March 29, 2022

Language: Английский

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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

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