Mechanisms and implications of bacterial–fungal competition for soil resources

The ISME Journal, Год журнала: 2024, Номер 18(1)

Опубликована: Янв. 1, 2024

Abstract Elucidating complex interactions between bacteria and fungi that determine microbial community structure, composition, functions in soil, as well regulate carbon (C) nutrient fluxes, is crucial to understand biogeochemical cycles. Among the various interactions, competition for resources main factor determining adaptation niche differentiation these two big groups soil. This because C energy limitations growth are a rule rather than an exception. Here, we review demands of fungi—the major kingdoms soil—the mechanisms their other resources, leading differentiation, global change impacts on this competition. The normalized utilization preference showed 1.4–5 times more efficient uptake simple organic compounds substrates, whereas 1.1–4.1 effective utilizing compounds. Accordingly, strongly outcompete while take advantage Bacteria also compete with products released during degradation substrates. Based specifics, differentiated spatial, temporal, chemical niches will increase under five changes including elevated CO2, N deposition, soil acidification, warming, drought. Elevated warming bacterial dominance, acidification drought fungal competitiveness.

Язык: Английский

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Rhizosphere Microorganisms Supply Availability of Soil Nutrients and Induce Plant Defense

Microorganisms, Год журнала: 2024, Номер 12(3), С. 558 - 558

Опубликована: Март 11, 2024

Plant health is necessary for food security, which a key determinant of secure and sustainable production systems. Deficiency soil nutrients invasion plant pathogens or insects are the main destroyers world’s production. Synthetic fertilizers chemical-based pesticides frequently employed to combat problems. However, these have negative impacts on microbial ecosystems ecosystem functioning. Rhizosphere microorganisms demonstrated their potency improve manage encourage growth, resulting in increased yield quality by converting organic inorganic substances around rhizosphere zone into available nutrients. Besides regulating nutrient availability growth enhancement, rhizobacteria fungi can restrict that cause disease secreting inhibitory chemicals boosting immunity pests pathogens. Thus, viewed as viable, alluring economic approaches agriculture biofertilizers biopesticides. This review provides an overview role inducing defenses. Moreover, discussion presented surrounding recent consequences employing strategy towards improving fertilization effectiveness, encouraging stronger, more pest-resistant plants.

Язык: Английский

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Invasive plant competitivity is mediated by nitrogen use strategies and rhizosphere microbiome

Soil Biology and Biochemistry, Год журнала: 2024, Номер 192, С. 109361 - 109361

Опубликована: Фев. 13, 2024

Язык: Английский

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Microbial Carbon Use Efficiency and Growth Rates in Soil: Global Patterns and Drivers

Global Change Biology, Год журнала: 2025, Номер 31(1)

Опубликована: Янв. 1, 2025

ABSTRACT Carbon use efficiency (CUE) of microbial communities in soil quantifies the proportion organic carbon (C) taken up by microorganisms that is allocated to growing biomass as well used for reparation cell components. This C amount subsequently involved turnover, partly leading necromass formation, which can be further stabilized soil. To unravel underlying regulatory factors and spatial patterns CUE on a large scale across biomes (forests, grasslands, croplands), we evaluated 670 individual data obtained three commonly approaches: (i) tracing substrate 13 (or 14 C) incorporation into respired CO 2 (hereafter C‐substrate), (ii) 18 O from water DNA ( O‐water), (iii) stoichiometric modelling based activities enzymes responsible nitrogen (N) cycles. The global mean depends approach: 0.59 C‐substrate approach, 0.34 O‐water approaches. Across biomes, was highest grassland soils, followed cropland forest soils. A power‐law relationship identified between growth rates, indicating faster utilization corresponds reduced losses maintenance associated with mortality. Microbial rate increased content C, total N, phosphorus, fungi/bacteria ratio. Our results contribute understanding linkage rates CUE, thereby offering insights impacts climate change ecosystem disturbances physiology consequences cycling.

Язык: Английский

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Mitigating soil degradation in continuous cropping banana fields through long-term organic fertilization: Insights from soil acidification, ammonia oxidation, and microbial communities

Industrial Crops and Products, Год журнала: 2024, Номер 213, С. 118385 - 118385

Опубликована: Март 23, 2024

Язык: Английский

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Deciphering microbial drivers of soil organic matter mineralization in surface and subsurface soil during long-term vegetation succession

Agriculture Ecosystems & Environment, Год журнала: 2024, Номер 374, С. 109186 - 109186

Опубликована: Июль 21, 2024

Язык: Английский

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Plant nutrient‐acquisition strategies contribute to species replacement during primary succession

Journal of Ecology, Год журнала: 2025, Номер unknown

Опубликована: Март 3, 2025

Abstract Plant nutrient‐acquisition strategies (NAS) linking soil nutrients to plant growth are considered crucial species replacement during primary succession. However, empirical evidence from field studies remains scarce. We examined the of Hippophae tibetana (Elaeagnaceae) by Populus purdomii (Salicaceae) first three stages (S1–S3) succession along Hailuogou postglacial chronosequence in southwest China. investigated changes scavenging, mining and N 2 ‐fixing two with varying nutrient levels evaluated how these NAS influenced performance Bioavailable nitrogen phosphorus concentrations increased significantly near detection limits at S1 stage 60 41 mg kg −1 S3 stage, respectively. Despite this, H. maintained strategies, as indicated rhizothamnia, cluster roots lower pH, higher carboxylate concentration acid phosphatase activities surrounding compared those around P . all sites. Conversely, relied on scavenging evidenced ectomycorrhizal colonization specific root length, smaller diameter more negative leaf δ 13 C than Leaf concentration, relative abundance , were S1, but this reversed S3. Linear mixed models that positively correlated low levels, while can enhance relatively high levels. regression showed accounted for 13% 31% variation abundance, The residuals further reduced 35% 39% when accounting combined effects strategies. Results incubation experiments, functional gene enzymatic microbial mineralization solubilization similar rhizosphere both species. Synthesis Distinct investments changing efficiency response availability key drivers turnover These findings underscore importance belowground mechanisms shaping aboveground community dynamics early pedogenesis.

Язык: Английский

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Arbuscular mycorrhizal fungi build a bridge for soybeans to recruit Pseudomonas putida

New Phytologist, Год журнала: 2025, Номер unknown

Опубликована: Март 19, 2025

Summary The assembly of the rhizosphere microbiome determines its functionality for plant fitness. Although interactions between arbuscular mycorrhizal fungi (AMF) and growth‐promoting rhizobacteria (PGPR) play important roles in growth disease resistance, research on division labor among members symbionts formed plants, AMF, PGPR, as well flow carbon sources, is still insufficient. To address above questions, we used soybean ( Glycine max ), Funneliformis mosseae , Pseudomonas putida KT2440 subjects to establish rhizobiont elucidate signal exchange these components. can attract P. by secreting cysteine a signaling molecule promote colonization rhizosphere. Colonized stimulate l ‐tryptophan secretion host lead upregulation genes involved converting methyl‐indole‐3‐acetic acid (Me‐IAA) into IAA response stimulation. Collectively, decipher tripartite mechanism microbial community via cross‐kingdom interactions.

Язык: Английский

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Ecology and Evolutionary Biology as Frameworks to Study Wine Fermentations

Microbial Biotechnology, Год журнала: 2025, Номер 18(3)

Опубликована: Март 1, 2025

Winemaking has leveraged microbiology to enhance wine quality, typically by engineering and inoculating individual yeast strains with desirable traits. However, do not grow alone during fermentation, rather they are embedded in diverse evolving microbial communities exhibiting complex ecological dynamics. Understanding predicting the interplay between community over course of species succession chemical matrix can benefit from recognising that wine, like all ecosystems, is subject general evolutionary rules. In this piece, we outline how conceptual methodological frameworks ecology biology assist researchers improving fermentation processes understanding mechanisms governing population dynamics, these important microcosms, unlocking genetic potential for strain development.

Язык: Английский

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Long-term chemical and organic fertilization induces distinct variations of microbial associations but unanimous elevation of soil multifunctionality

The Science of The Total Environment, Год журнала: 2024, Номер 931, С. 172862 - 172862

Опубликована: Май 4, 2024

Язык: Английский

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