Stabilized microbial necromass in soil is more strongly coupled with microbial diversity than the bioavailability of plant inputs DOI Creative Commons
Gerrit Angst, Šárka Angst, Jan Frouz

et al.

Soil Biology and Biochemistry, Journal Year: 2024, Volume and Issue: 190, P. 109323 - 109323

Published: Jan. 19, 2024

Microbial necromass carbon (C) can substantially contribute to stabilized soil organic matter (SOM), and effective management of this C may help mitigate climate change. However, factors important the formation microbial are only partly understood. While bioavailable plant inputs induce by boosting growth use efficiency, other traits, such as those related secretion systems or adhesion motility, also be relevant. These traits independent bioavailability modulated environmental depth site age. Such links, however, have hardly been studied. Here, we used replicated plots European alder (more inputs) Scots pine (less investigate links among inputs, depth, age, community composition, in SOM, i.e., particulate occluded within aggregates (oPOM) mineral-associated (MAOM). We did not find evidence that nor were major drivers formation. Instead, certain taxa, diversity particular, most tightly MAOM. contributed oPOM (up ∼57% stored fraction), a pool considered largely derive from biomolecules. Combined, MAOM accounted for ∼23% bulk contents. Our results imply C-focused research consider constraints on composition diversity, pools than MAOM, plant-derived SOM.

Language: Английский

Microbial necromass as the source of soil organic carbon in global ecosystems DOI
Baorong Wang, Shaoshan An, Chao Liang

et al.

Soil Biology and Biochemistry, Journal Year: 2021, Volume and Issue: 162, P. 108422 - 108422

Published: Sept. 14, 2021

Language: Английский

Citations

477
Deciphering factors driving soil microbial life‐history strategies in restored grasslands DOI Creative Commons
Yang Yang, Yanxing Dou, Baorong Wang

et al.

iMeta, Journal Year: 2022, Volume and Issue: 2(1)

Published: Dec. 4, 2022

In macroecology, the concept of r- and K-strategy has been widely applied, yet, there have limited studies on microbial life-history strategies in temperate grasslands using multiple sequencing approaches. Total phospholipid fatty acid (PLFA) analysis, high-throughput meta-genomic sequencing, GeoChip technologies were used to examine changes traits a chronosequence restored (1, 5, 10, 15, 25, 30 years since restoration). Grassland restoration increased relative abundances Actinobacteria, Proteobacteria, Bacteroidetes but reduced Acidobacteria, Planctomycetes, Chloroflexi. PLFA analysis revealed that grassland fungi:bacteria Gram-positive:Gram-negative bacteria ratios. Combined with data, we found shifted microorganisms from oligotrophic (K-) copiotrophic (r-) groups, consistent rRNA operon copy number community. Structural equation modeling showed soil properties positively (

Language: Английский

Citations

147
Ecological modelling approaches for predicting emergent properties in microbial communities DOI
Naomi Iris van den Berg, Daniel Machado, Sophia Santos

et al.

Nature Ecology & Evolution, Journal Year: 2022, Volume and Issue: 6(7), P. 855 - 865

Published: May 16, 2022

Language: Английский

Citations

142
Increasing contribution of microbial residues to soil organic carbon in grassland restoration chronosequence DOI
Yang Yang, Yanxing Dou, Baorong Wang

et al.

Soil Biology and Biochemistry, Journal Year: 2022, Volume and Issue: 170, P. 108688 - 108688

Published: April 28, 2022

Language: Английский

Citations

134
Microbial metabolism and necromass mediated fertilization effect on soil organic carbon after long-term community incubation in different climates DOI Open Access

Haowei Ni,

Xiaoyan Jing,

Xian Xiao

et al.

The ISME Journal, Journal Year: 2021, Volume and Issue: 15(9), P. 2561 - 2573

Published: March 12, 2021

Language: Английский

Citations

127
Stoichiometric regulation of priming effects and soil carbon balance by microbial life strategies DOI
Zhenke Zhu, Yunying Fang, Yuqing Liang

et al.

Soil Biology and Biochemistry, Journal Year: 2022, Volume and Issue: 169, P. 108669 - 108669

Published: April 15, 2022

Language: Английский

Citations

115
Initial soil formation by biocrusts: Nitrogen demand and clay protection control microbial necromass accrual and recycling DOI
Baorong Wang, Yimei Huang, Na Li

et al.

Soil Biology and Biochemistry, Journal Year: 2022, Volume and Issue: 167, P. 108607 - 108607

Published: Feb. 15, 2022

Language: Английский

Citations

110
Phosphorus addition decreases plant lignin but increases microbial necromass contribution to soil organic carbon in a subalpine forest DOI Creative Commons
Ruyi Luo, Yakov Kuzyakov, Biao Zhu

et al.

Global Change Biology, Journal Year: 2022, Volume and Issue: 28(13), P. 4194 - 4210

Published: April 21, 2022

Increasing phosphorus (P) inputs induced by anthropogenic activities have increased P availability in soils considerably, with dramatic effects on carbon (C) cycling and storage. However, the underlying mechanisms via which drives plant microbial regulation of soil organic C (SOC) formation stabilization remain unclear, hampering accurate projection sequestration under future global change scenarios. Taking advantage an 8-year field experiment increasing addition levels a subalpine forest eastern Tibetan Plateau, we explored inputs, communities, biomarkers, as well SOC physical chemical fractions. We found that continuous reduced fine root biomass, but did not affect total content. decreased lignin contribution to SOC, primarily from declined vanillyl-type phenols, was coincided reduction methoxyl/N-alkyl 2.1%-5.5%. Despite decline decomposition due suppressed oxidase activity addition, content lignin-derived compounds because low input roots. In contrast, (mainly fungal) necromass its slower N-acquisition enzyme activity. The larger corresponded 9.1%-12.4% increase carbonyl abundance. Moreover, had no influence slow-cycing mineral-associated pool, stability indicated aliphaticity recalcitrance indices. Overall, over 8 years influenced composition through divergent alterations plant- microbial-derived contributions, shape stability. Such findings may aid accurately forecasting dynamics their potential feedbacks climate scenarios Earth system models.

Language: Английский

Citations

109
Decreased soil multifunctionality is associated with altered microbial network properties under precipitation reduction in a semiarid grassland DOI Creative Commons
Xing Wang, Qi Zhang,

Zhenjiao Zhang

et al.

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

Citations

91
New insights into carbon mineralization in tropical paddy soil under land use conversion: Coupled roles of soil microbial community, metabolism, and dissolved organic matter chemodiversity DOI Creative Commons
Dongming Wu,

Changqi Ren,

Dong Ren

et al.

Geoderma, Journal Year: 2023, Volume and Issue: 432, P. 116393 - 116393

Published: Feb. 22, 2023

Although the impact of land conversion on carbon mineralization in paddy soils has received increasing attention, coupled roles soil microdiversity and chemodiversity these processes are largely unknown. To address this issue, use from fields (PF) to vegetable (VF), rice-vegetable rotation (RV), abandoned (AL), were investigated study. The relationships between characteristics microbial community, metabolism physiology dissolved organic matter (DOM) analyzed. After conversion, enhanced AL RV, which 217.49% 183.02% that PF. In contrast, no significant change was observed VF, although anaerobic environment transformed into an aerobic one fungal richness/ diversity increased soil. This because directly regulated by DOM quantity labile carbon, indirectly community. Specifically, largest attributed strongest as had DOC contents, hydrophilic substances (e.g., carboxyl, carbohydrate, amino), abundant eutrophic taxa Actinobacteria Proteobacteria). VF mainly related more condensed aromatics oligotrophic microbes, fewer soil, resulting dominance recalcitrant carbon. also prevailed RV. However, RV showed moderate due having proper with high bioavailability. Collectively, results provide molecular insights a micro-chemodiversity perspective, highlights importance nutrient supply strategy.

Language: Английский

Citations

46