Investigating the Rhizosphere Fungal Communities of Healthy and Root-Rot-Infected Lycium barbarum in the Tsaidam Basin, China DOI Creative Commons
Guozhen Duan,

Guanghui Fan,

Jianling Li

et al.

Microorganisms, Journal Year: 2024, Volume and Issue: 12(12), P. 2447 - 2447

Published: Nov. 28, 2024

Lycium barbarum is a plant of considerable economic importance in China. However, root rot poses significant threat to its yield and quality, leading substantial losses. The disparities rhizosphere soil fungal communities between healthy root-rot-affected L. have not been thoroughly explored. Delving into the dynamics these onset may provide pivotal insights for biological control this disease barbarum, as well aid identifying fungi associated with condition. In study, we utilized samples from Ningqi No. 1, distinguished cultivar our experimental material. We assessed composition diversity both diseased (D) (H) using Illumina MiSeq sequencing technology. study’s findings revealed that mean concentrations total nitrogen (TN) organic matter (SOM) were significantly higher specimens when contrasted ones, while pH levels notably increased latter group. Additionally, alpha-diversity was observed be greater within opposed samples. Marked distinctions discerned Ascomycota identified predominant phylum groups. samples, beneficial such Plectosphaerella Mortierella prevalent, contrast relative abundances Embellisia Alternaria demonstrated remarkable increases 89.59% 87.41%, respectively. Non-metric Multidimensional Scaling (NMDS) illustrated clear Redundancy Analysis (RDA) indicated (TN), (SOM), phosphorus (TP), Available Potassium (AK), pH, Total (TK). Notably, showed stronger correlation TN SOM more

Language: Английский

Microbial Carbon Use Efficiency and Growth Rates in Soil: Global Patterns and Drivers DOI
Junxi Hu, Yongxing Cui, Stefano Manzoni

et al.

Global Change Biology, Journal Year: 2025, Volume and Issue: 31(1)

Published: Jan. 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.

Language: Английский

Citations

4
Rhizosphere as a hotspot for microbial necromass deposition into the soil carbon pool DOI Open Access
Qitong Wang, Junxiang Ding, Ziliang Zhang

et al.

Journal of Ecology, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 14, 2024

Abstract Microbial leftovers, known as necromass, are key players in storing carbon the soil around plant roots (i.e. rhizosphere), a zone characterized by high‐efficiency microbial anabolism. Yet, extent and mechanisms through which rhizosphere contributes to organic (SOC) via especially under changing environments remain unclear. We aimed evaluate contributions of necromass SOC influencing factors from perspective. collected bulk 39 alpine coniferous forest sites on eastern Tibetan Plateau assess contribution dynamic perspective calculating ratio increased amino sugars (AS) relative that ( R AS/SOC ). also climate data determined nutrient concentrations physiological traits elucidate affecting . The results showed across all sampling sites, average SOC‐normalized AS were significantly higher than those soil. Furthermore, was greater 1, indicating faster accumulation rhizosphere. These implied sustains capacity for pool does. Soil availability primary factor , precipitation indirectly affected anabolism status. Additionally, with increasing availability, carbon‐use efficiency growth rate but biomass‐specific enzyme activity declined, microorganisms tended exhibit high‐yield strategies availability. Synthesis Our findings underpin vital effect offer valuable insights into underlying C metabolic processes environments.

Language: Английский

Citations

5
Reforestation in northeastern China increased the soil microbial necromass carbon accumulation by influencing glomalin and enzyme activities DOI
L J Pan, Xiuwei Wang

Organic Geochemistry, Journal Year: 2025, Volume and Issue: unknown, P. 104983 - 104983

Published: March 1, 2025

Language: Английский

Citations

0
Divergence of microbial carbon use efficiency and soil organic carbon along a tidal flooding gradient in a subtropical coastal wetland DOI
Ji Tan, Jiafang Huang,

Weimin Quan

et al.

Water Research, Journal Year: 2025, Volume and Issue: unknown, P. 123527 - 123527

Published: March 1, 2025

Language: Английский

Citations

0
Elevation-dependent distribution of soil microbial necromass carbon in Pinus densata Mast. forests DOI

Bo Zhang,

Sijie Zhu, Liangna Guo

et al.

Applied Soil Ecology, Journal Year: 2025, Volume and Issue: 209, P. 106049 - 106049

Published: March 23, 2025

Language: Английский

Citations

0
Effect of fire on microbial necromass carbon content is regulated by soil depth, time since fire, and plant litter input in subtropical forests DOI
Juan Zhou, Lingling Wang, Hong Chen

et al.

Plant and Soil, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 12, 2024

Language: Английский

Citations

2
Long-term sheep grazing reduces fungal necromass carbon contribution to soil organic carbon in the desert steppe DOI Creative Commons
Tianqi Zhao,

Naijing Lu,

Jianying Guo

et al.

Frontiers in Microbiology, Journal Year: 2024, Volume and Issue: 15

Published: Oct. 10, 2024

Grazing has been shown to impact the soil environment and microbial necromass carbon (MNC), which in turn regulates organic (SOC). However, sequestration potential of fungi bacteria under different stocking rates remains unclear, limiting our understanding grazing management. In 2004, we established experiments desert steppe northern China with four rates. Our findings indicate that MNC decreased moderate heavy grazing, while light did not significantly differ from no grazing. Notably, reduction fungal carbon, rather than bacterial was primarily responsible for contribution SOC. This difference is attributed varying effects sheep on community characteristics, including richness, diversity, composition. Thus, accurately predict dynamics grassland ecosystems, it essential consider ecological impacts communities may vary management practices.

Language: Английский

Citations

0
The rhizosphere contributes disproportionately to free-living nitrogen fixation in subalpine forest soils DOI
Min Li, Jipeng Wang, Na Li

et al.

Soil Biology and Biochemistry, Journal Year: 2024, Volume and Issue: unknown, P. 109641 - 109641

Published: Oct. 1, 2024

Language: Английский

Citations

0
Investigating the Rhizosphere Fungal Communities of Healthy and Root-Rot-Infected Lycium barbarum in the Tsaidam Basin, China DOI Creative Commons
Guozhen Duan,

Guanghui Fan,

Jianling Li

et al.

Microorganisms, Journal Year: 2024, Volume and Issue: 12(12), P. 2447 - 2447

Published: Nov. 28, 2024

Lycium barbarum is a plant of considerable economic importance in China. However, root rot poses significant threat to its yield and quality, leading substantial losses. The disparities rhizosphere soil fungal communities between healthy root-rot-affected L. have not been thoroughly explored. Delving into the dynamics these onset may provide pivotal insights for biological control this disease barbarum, as well aid identifying fungi associated with condition. In study, we utilized samples from Ningqi No. 1, distinguished cultivar our experimental material. We assessed composition diversity both diseased (D) (H) using Illumina MiSeq sequencing technology. study’s findings revealed that mean concentrations total nitrogen (TN) organic matter (SOM) were significantly higher specimens when contrasted ones, while pH levels notably increased latter group. Additionally, alpha-diversity was observed be greater within opposed samples. Marked distinctions discerned Ascomycota identified predominant phylum groups. samples, beneficial such Plectosphaerella Mortierella prevalent, contrast relative abundances Embellisia Alternaria demonstrated remarkable increases 89.59% 87.41%, respectively. Non-metric Multidimensional Scaling (NMDS) illustrated clear Redundancy Analysis (RDA) indicated (TN), (SOM), phosphorus (TP), Available Potassium (AK), pH, Total (TK). Notably, showed stronger correlation TN SOM more

Language: Английский

Citations

0