Calcium promotes persistent soil organic matter by altering microbial transformation of plant litter DOI Creative Commons
Itamar Shabtai, Roland C. Wilhelm, Steffen A. Schweizer

et al.

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Oct. 19, 2023

Calcium (Ca) can contribute to soil organic carbon (SOC) persistence by mediating physico-chemical interactions between compounds and minerals. Yet, Ca is also crucial for microbial adhesion, potentially affecting colonization of plant mineral surfaces. The importance as a mediator microbe-mineral-organic matter resulting SOC transformation has been largely overlooked. We incubated 44Ca labeled soils with 13C15N leaf litter study how affects formation associated matter. Here we show that additions promote hyphae-forming bacteria, which often specialize in colonizing surfaces, increase incorporation into biomass use efficiency approximately 45% each. reduce cumulative CO2 production 4%, while promoting associations minerals byproducts litter. These findings expand the role from solely driver reactions coupled abiotic-biotic cycling SOC.

Language: Английский

Defining trait-based microbial strategies with consequences for soil carbon cycling under climate change DOI Creative Commons
Ashish Malik, Jennifer B. H. Martiny, Eoin Brodie

et al.

The ISME Journal, Journal Year: 2019, Volume and Issue: 14(1), P. 1 - 9

Published: Sept. 25, 2019

Microorganisms are critical in terrestrial carbon cycling because their growth, activity and interactions with the environment largely control fate of recent plant inputs as well protected soil organic [1, 2]. Soil stocks reflect a balance between microbial decomposition stabilisation assimilated carbon. The can shift under altered environmental conditions [3], new research suggests that knowledge physiology may be for projecting changes improving prognosis climate change feedbacks [4–7]. Still, predicting ecosystem implications processes remains challenge. Here we argue this challenge met by identifying life history strategies based on an organism’s phenotypic characteristics, or traits, representing these models. What key traits change? Microbial growth survival impacted multiple determine responses to varying resource availability fluctuating abiotic [8]. Cellular maintenance activities (those do not produce growth) include production extracellular enzymes degrade acquire resources, biomolecular repair mechanisms, cellular integrity, osmotic balance, defence, antagonism, cell signalling motility [9–11]. It is conceivable investment into would generally high soils, highly heterogeneous temporally variable distribution stressful like extremes moisture, temperature, pH salinity [12, 13]. Selective pressures suboptimal could lead greater cellular-level physiological allocation relative (Fig. 1) thereby impacting processes. Open separate window Fig. 1 Schematic showing C flux includes depolymerisation, substrate uptake, assimilation, dissimilation, biomass synthesis non-growth production. Extracellular enzyme represents acquisition, stress protein linked tolerance reflects higher yield. Forked arrows signify metabolic points where hypothesised tradeoffs might occur. expected empirical relationships among also shown

Language: Английский

Citations

738
Plant- or microbial-derived? A review on the molecular composition of stabilized soil organic matter DOI Creative Commons
Gerrit Angst, Kevin E. Mueller, Klaas G.J. Nierop

et al.

Soil Biology and Biochemistry, Journal Year: 2021, Volume and Issue: 156, P. 108189 - 108189

Published: March 1, 2021

Language: Английский

Citations

731
Microbial carbon use efficiency promotes global soil carbon storage DOI Creative Commons
Feng Tao, Yuanyuan Huang, Bruce A. Hungate

et al.

Nature, Journal Year: 2023, Volume and Issue: 618(7967), P. 981 - 985

Published: May 24, 2023

Abstract Soils store more carbon than other terrestrial ecosystems 1,2 . How soil organic (SOC) forms and persists remains uncertain 1,3 , which makes it challenging to understand how will respond climatic change 3,4 It has been suggested that microorganisms play an important role in SOC formation, preservation loss 5–7 Although affect the accumulation of matter through many pathways 4,6,8–11 microbial use efficiency (CUE) is integrative metric can capture balance these processes 12,13 CUE potential act as a predictor variation storage, persistence unresolved 7,14,15 Here we examine relationship between SOC, interactions with climate, vegetation edaphic properties, using combination global-scale datasets, microbial-process explicit model, data assimilation, deep learning meta-analysis. We find at least four times evaluated factors, such input, decomposition or vertical transport, determining storage its spatial across globe. In addition, shows positive correlation content. Our findings point major determinant global storage. Understanding underlying their environmental dependence may help prediction feedback changing climate.

Language: Английский

Citations

374
Microbial diversity drives carbon use efficiency in a model soil DOI Creative Commons
Luiz A. Domeignoz‐Horta, Grace Pold, Xiao‐Jun Allen Liu

et al.

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

Published: July 23, 2020

Abstract Empirical evidence for the response of soil carbon cycling to combined effects warming, drought and diversity loss is scarce. Microbial use efficiency (CUE) plays a central role in regulating flow through soil, yet how biotic abiotic factors interact drive it remains unclear. Here, we combine distinct community inocula (a factor) with different temperature moisture conditions (abiotic factors) manipulate microbial structure within model soil. While composition are strongest predictors CUE, modulated relationship between CUE being positively correlated bacterial only under high moisture. Altogether these results indicate that × ecosystem-function can be impaired non-favorable soils, understand changes C need account multiple facets global changes.

Language: Английский

Citations

363
Large‐scale importance of microbial carbon use efficiency and necromass to soil organic carbon DOI
Chao Wang,

Lingrui Qu,

Liuming Yang

et al.

Global Change Biology, Journal Year: 2021, Volume and Issue: 27(10), P. 2039 - 2048

Published: Feb. 10, 2021

Abstract Optimal methods for incorporating soil microbial mechanisms of carbon (C) cycling into Earth system models (ESMs) are still under debate. Specifically, whether physiology parameters and residual materials important to organic C (SOC) content is unclear. Here, we explored the effects biotic abiotic factors on SOC based a survey soils from 16 locations along ~4000 km forest transect in eastern China, spanning wide range climate, conditions, communities. We found that was highly correlated with biomass (MBC) amino sugar (AS) concentration, an index necromass. Microbial use efficiency (CUE) significantly related variations this national‐scale transect. Furthermore, effect climatic edaphic mainly via their regulation physiological properties (CUE MBC). also regression explanation AS performed better than without them. Our results provide empirical linkages among characteristics, at large scale confirm necessity necromass pools ESMs global change scenarios.

Language: Английский

Citations

244
Residue retention and minimum tillage improve physical environment of the soil in croplands: A global meta-analysis DOI
Yuan Li, Zhou Li, Song Cui

et al.

Soil and Tillage Research, Journal Year: 2019, Volume and Issue: 194, P. 104292 - 104292

Published: July 8, 2019

Language: Английский

Citations

220
The soil pH and heavy metals revealed their impact on soil microbial community DOI
Misbah Naz, Zhicong Dai, Sajid Hussain

et al.

Journal of Environmental Management, Journal Year: 2022, Volume and Issue: 321, P. 115770 - 115770

Published: Aug. 30, 2022

Language: Английский

Citations

215
The variation in microbial community structure under different heavy metal contamination levels in paddy soils DOI
Yaoben Lin, Yanmei Ye, Yiming Hu

et al.

Ecotoxicology and Environmental Safety, Journal Year: 2019, Volume and Issue: 180, P. 557 - 564

Published: May 23, 2019

Language: Английский

Citations

206
Unveiling the crucial role of soil microorganisms in carbon cycling: A review DOI
Haowei Wu, Huiling Cui,

Chen-Xi Fu

et al.

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 909, P. 168627 - 168627

Published: Nov. 17, 2023

Language: Английский

Citations

204
pH and exchangeable aluminum are major regulators of microbial energy flow and carbon use efficiency in soil microbial communities DOI Creative Commons
Davey L. Jones, Emily C. Cooledge, Frances C. Hoyle

et al.

Soil Biology and Biochemistry, Journal Year: 2019, Volume and Issue: 138, P. 107584 - 107584

Published: Sept. 4, 2019

The microbial partitioning of organic carbon (C) into either anabolic (i.e. growth) or catabolic respiration) metabolic pathways represents a key process regulating the amount added C that is retained in soil. factors use efficiency (CUE) agricultural soils, however, remain poorly understood. aim this study was to investigate substrate CUE from wide range soils (n = 970) and geographical area (200,000 km2) determine which soil properties most influenced retention within community. Using 14C-labeling approach, we showed average across all 0.65 ± 0.003, but variation relatively high sample population (CV 14.9%). Of major measured our found pH exchangeable aluminum (Al) were highly correlated with CUE. We identified critical transition point at declined (pH 5.5). This coincided exactly Al3+ started become soluble. In contrast, other [e.g. total nitrogen (N), dissolved (DOC), clay content, available calcium, phosphorus (P) sulfur (S), base cations] little no relationship also evidence suggest nutrient stoichiometry (C:N, C:P C:S ratios) these soils. Based on current evidence, postulate decline low Al reflects greater channeling energy intensive involved overcoming H+/Al3+ stress (e.g. cell repair detoxification). response may be associated shifts community structure, are known tightly pH. conclude maintaining above 5.5 maximizes efficiency.

Language: Английский

Citations

201