Microbial life‐history strategies mediate microbial carbon pump efficacy in response to N management depending on stoichiometry of microbial demand DOI
Liyang Yang, Alberto Canarini, Wushuai Zhang

et al.

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

Meta-analysis of the impacts of global change factors on soil microbial diversity and functionality DOI Creative Commons
Zhenghu Zhou, Chuankuan Wang, Yiqi Luo

et al.

Nature Communications, Journal Year: 2020, Volume and Issue: 11(1)

Published: June 17, 2020

Biodiversity on the Earth is changing at an unprecedented rate due to a variety of global change factors (GCFs). However, effects GCFs microbial diversity unclear despite that soil microorganisms play critical role in biogeochemical cycling. Here, we synthesize 1235 GCF observations worldwide and show rare species are more sensitive than common species, while do not always lead reduction diversity. GCFs-induced shifts alpha can be predominately explained by changed pH. In addition, impacts functionality community structure biomass rather Altogether, our findings fundamentally different from previous knowledge for well-studied plant animal communities, crucial policy-making conservation hotspots under changes.

Language: Английский

Citations

658
Decreasing soil microbial diversity is associated with decreasing microbial biomass under nitrogen addition DOI
Chao Wang, Dongwei Liu, Edith Bai

et al.

Soil Biology and Biochemistry, Journal Year: 2018, Volume and Issue: 120, P. 126 - 133

Published: March 20, 2018

Language: Английский

Citations

552
Nitrogen limitation of decomposition and decay: How can it occur? DOI Creative Commons
Colin Averill, Bonnie G. Waring

Global Change Biology, Journal Year: 2017, Volume and Issue: 24(4), P. 1417 - 1427

Published: Nov. 9, 2017

The availability of nitrogen (N) is a critical control on the cycling and storage soil carbon (C). Yet, there are conflicting conceptual models to explain how N influences decomposition organic matter by microbial communities. Several lines evidence suggest that limits decomposition; earliest stages leaf litter decay associated with net import from environment, both observations show high decomposes more rapidly. In direct contrast these findings, experimental additions inorganic soils broadly suppression activity, which inconsistent limitation decomposition. Resolving this apparent contradiction representing nutrient dynamics in predictive ecosystem under multitude global change factors alter availability. Here, we propose new framework, Carbon, Acidity, Mineral Protection hypothesis, understand effects C explore predictions framework mathematical model. Our model simulations demonstrate addition can have opposing separate pools (particulate mineral-protected carbon) because they differentially affected biomass growth. Moreover, changes frequently linked shifts pH or osmotic stress, independently affect mask stimulation activity. Thus, effect dependent upon interactions among physiology, mineralogy, acidity. We believe our synthesis provides applicable predict change.

Language: Английский

Citations

395
Protist communities are more sensitive to nitrogen fertilization than other microorganisms in diverse agricultural soils DOI Creative Commons
Zhi-Bo Zhao, Ji‐Zheng He, Stefan Geisen

et al.

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

Citations

374
Soil multifunctionality is affected by the soil environment and by microbial community composition and diversity DOI Creative Commons
Qing Zheng, Yuntao Hu,

Shasha Zhang

et al.

Soil Biology and Biochemistry, Journal Year: 2019, Volume and Issue: 136, P. 107521 - 107521

Published: June 26, 2019

Microorganisms are critical in mediating carbon (C) and nitrogen (N) cycling processes soils. Yet, it has long been debated whether the underlying biogeochemical cycles affected by composition diversity of soil microbial community or not. The communities can be influenced various environmental factors, which turn known to impact processes. objectives this study were test effects multiple edaphic drivers individually represented as multivariate environment interacting with diversity, concomitantly on functions (i.e. enzyme activities, C N processes). We employed high-throughput sequencing (Illumina MiSeq) analyze bacterial/archaeal fungal targeting 16S rRNA gene ITS1 region soils collected from three land uses (cropland, grassland forest) deriving two bedrock forms (silicate limestone). Based data set we explored single combined variables structure well activities several found that both shaped same most representation exerting stronger than communities, demonstrated (partial) Mantel tests. also similar controls bacterial/archaeal/fungal richness diversity. Soil only directly but not composition. In contrast, significantly related richness/diversity environment. This indicates direct control indirect structuring communities. further highlights importance diversity) important

Language: Английский

Citations

368
A keystone microbial enzyme for nitrogen control of soil carbon storage DOI Creative Commons
Ji Chen, Yiqi Luo, Kees Jan van Groenigen

et al.

Science Advances, Journal Year: 2018, Volume and Issue: 4(8)

Published: Aug. 3, 2018

Nitrogen-induced suppression of lignin-modifying enzyme activity contributes to soil carbon sequestration.

Language: Английский

Citations

315
Responses of soil microbial community to continuous experimental nitrogen additions for 13 years in a nitrogen-rich tropical forest DOI
Cong Wang, X. L. Lu, Taiki Mori

et al.

Soil Biology and Biochemistry, Journal Year: 2018, Volume and Issue: 121, P. 103 - 112

Published: March 13, 2018

Language: Английский

Citations

222
Responses of soil microbial community structure changes and activities to biochar addition: A meta-analysis DOI
Leiyi Zhang,

Yiming Jing,

Yangzhou Xiang

et al.

The Science of The Total Environment, Journal Year: 2018, Volume and Issue: 643, P. 926 - 935

Published: June 28, 2018

Language: Английский

Citations

201
Long‐term nitrogen addition modifies microbial composition and functions for slow carbon cycling and increased sequestration in tropical forest soil DOI
Jing Tian, Jennifer A. J. Dungait, X. L. Lu

et al.

Global Change Biology, Journal Year: 2019, Volume and Issue: 25(10), P. 3267 - 3281

Published: July 5, 2019

Abstract Nitrogen (N) deposition is a component of global change that has considerable impact on belowground carbon (C) dynamics. Plant growth stimulation and alterations fungal community composition functions are the main mechanisms driving soil C gains following N in N‐limited temperate forests. In N‐rich tropical forests, however, generally minor effects plant growth; consequently, storage may strongly depend microbial processes drive litter organic matter decomposition. Here, we investigated how old‐growth forest responded to 13 years addition at four rates: 0 (Control), 50 (Low‐N), 100 (Medium‐N), 150 (High‐N) kg ha −1 year . Soil (SOC) content increased under High‐N, corresponding 33% decrease CO 2 efflux, reductions relative abundances bacteria as well genes responsible for cellulose chitin degradation. A 113% increase O emission was positively correlated with acidification an denitrification ( narG norB ). induced by decreased available P concentrations, associated abundance phytase. The key functional gene groups degradation were related slower SOC decomposition, indicating accumulation subjected High‐N addition. However, changes cycling led coincidentally large increases emissions, exacerbated deficiency. These two factors partially offset perceived beneficial soils. findings suggest potential incorporate into Earth system models considering their greenhouse gas emission, biogeochemical processes, biodiversity ecosystems.

Language: Английский

Citations

181
Effects of nitrogen and phosphorus addition on microbial community composition and element cycling in a grassland soil DOI Creative Commons
Meike Widdig, Anna Heintz‐Buschart, Per‐Marten Schleuss

et al.

Soil Biology and Biochemistry, Journal Year: 2020, Volume and Issue: 151, P. 108041 - 108041

Published: Oct. 11, 2020

Language: Английский

Citations

181