The Dynamics of Soil Microbial Communities on Different Timescales: A Review

Чернов, Т. И.; Железова, А. Д.

doi:10.1134/s106422932005004x

Cited by 41 publications

(20 citation statements)

References 93 publications

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“…Within the complex soil matrix, numerous edaphic properties impact the structure of the microbial communities therein, including pH, salinity, temperature and moisture ( Frindte et al, 2019 ; Zheng et al, 2019 ). Additionally, temporal dynamics such as weather patterns, root exudation and other seasonal inputs of organic material may influence the structure and activity of a microbial community ( Kuzyakov and Blagodatskaya, 2015 ; Chernov and Zhelezova, 2020 ). As a result of soil heterogeneity and temporal fluctuations, it is critical to consider that sequence-based approaches reveal only a snapshot of the microbial community present at a given time.…”

Section: Challenges and Way Forwardmentioning

confidence: 99%

From diversity to complexity: Microbial networks in soils

Guseva

Darcy

Simon

et al. 2022

Soil Biology and Biochemistry

125

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Section: Challenges and Way Forwardmentioning

confidence: 99%

From diversity to complexity: Microbial networks in soils

Guseva

Darcy

Simon

et al. 2022

Soil Biology and Biochemistry

125

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“…Seasonal changes in the biomass of microorganisms, which is determined by the method of fumigation-extraction, can occur 2-4 or more times [39,40,41]. Moreover, with agricultural use of soils, the seasonal dynamics of microorganism`s biomass is more pronounced compared to natural coenoses [42].…”

Section: Discussionmentioning

confidence: 99%

Seasonal Dynamics of Organic Carbon and Nitrogen in Biomasses of Microorganisms in Arable Mollisols Affected by Different Tillage Systems

Kravchenko¹,

Zhang²,

Song³

et al. 2022

Preprint

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Tillage has been reported to induce seasonal changes of organic carbon (Сmicro) and nitrogen (Nmicro) in biomass of microorganisms. Soil microorganisms execute such ecosystem functions as: it is an immediate sink of labile biophil elements; it is an agent of a conversion, catalysis and synthesis of humus substances; it transforms soil contaminants into non-hazardous wastes; it participates in soil aggregation and pedogenesis as a whole. However, the seasonal turnover of microorganisms on arable lands in temperate ecosystems has not been investigated on a relevant level. Hence, we aimed to study the dynamics of such soil microbial biomass patterns as: Сmicro, Nmicro, microbial index (MI = (Сmicro/CTOC)·100, %) and CO2-C emission on the background of 9 years of tillage and 22 years of abandoned (Ab) and fallow (F) usage. Our study was conducted on a long-term experimental site on a Mollisol in the northeast China. The maximum Сmicro and Nmicro content was found: at the beginning of the growing season – in 0-10-; in mid-July – in 20-40 cm layers, while the minimum – in August-October. The Сmicro content ranged from 577.79- and 381.79 mg-1 kg-1 under Ab in spring to 229.53- and 272.86 mg-1 kg-1 in autumn under CT (conventional tillage) and F in 0-10- and 10-20 cm layers, respectively. The amplitude of Nmicro content changes was several times lower comparatively to Сmicro. The smallest quartile range (IQR0.25-0.75) of such changes was under: no-till (NT) and Ab in 0-10-, NT and F – in 10-20- and CT - in 20-40 cm layers. The widest Сmicro : Nmicro ratio was found at F and CT – in 0-20- and CT and rotational tillage (Rot) – in 20-40 cm layers. MI dynamics resembled the trends of Сmicro and Nmicro and changed from 0.72  0.168- tо 2.00  0,030 %. The highest part of Сmicro in CTOC was at Ab (1.82  1.85 %) and NT (1.66  1.52 %) – in 0-10-; Ab (1.23  1.27 %) and NT (1.29  1.32 %) – in 10-20- and – Ab (1.19  1.09 %) and F (1.11  1.077 %) – in 20-40 cm layers, correspondingly. The Pearson’s correlation coefficient between Сmicro and CTOC increased from the upper 0-10- to the lower 20-40 cm layer, it was "strong" and "high" between Сmicro and CTOC. Different use of Mollisol affected the amplitude of Сmicro and Nmicro seasonal changes, but it didn’t change their trend. Our results suggest the key role of Ab and NT technologies in Сmicro accumulation in total organic carbon (TOC).

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“…However, there are a variety of factors that can significantly affect soil microbial communities and predict the abundance and diversity of these communities. Among these factors, there are biotic factors such as root respiration and the nature of forest formation (Chen et al, 2015b;Schmid et al, 2019); and abiotic factors such as temperature, climate, soil pH, moisture, organic matter also including nutritive elements such as nitrogen and phosphorus (Cao et al, 2016;Chernov, Zhelezova, 2020). These biotic and abiotic factors are very dynamic and consist of many elements that can interact and influence microbial communities in the soil.…”

Section: Factors and Interactions Of Soil Microorganismsmentioning

confidence: 99%

Aspects of the rhizospheric microbiota and their interactions with the soil ecosystem

Amrani

2022

Vestn. VOGiS

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Soil microbial communities play a key role in the evolution of the rhizosphere. In addition, proper exploration of these microbial resources represents a promising strategy that guarantees the health and sustainability of all ecosystems connected to the ground. Under the influence of environmental conditions, microbial communities can change compositions in terms of abundance and diversity. Beyond the descriptive level, the current orientation of microbial ecology is to link these structures to the functioning of ecosystems; specifically, to understand the effect of environmental factors on the functional structure of microbial communities in ecosystems. This review focuses on the main interactions between the indigenous soil microflora and the major constituents of the rhizosphere to understand, on the one hand, how microbial biodiversity can improve plant growth and maintain homeostasis of the rhizospheric ecosystem, on the other hand, how the maintenance and enrichment of plant biodiversity can contribute to the conservation of soil microbial diversity; knowing that these microorganisms are also controlled by the abiotic properties of the soil. Overall, understanding the dynamics of the rhizosphere microbiome is essential for developing innovative strategies in the field of protecting and maintaining the proper functioning of the soil ecosystem.

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The Dynamics of Soil Microbial Communities on Different Timescales: A Review

Cited by 41 publications

References 93 publications

From diversity to complexity: Microbial networks in soils

From diversity to complexity: Microbial networks in soils

Seasonal Dynamics of Organic Carbon and Nitrogen in Biomasses of Microorganisms in Arable Mollisols Affected by Different Tillage Systems

Aspects of the rhizospheric microbiota and their interactions with the soil ecosystem

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