Applied Soil Ecology, Journal Year: 2025, Volume and Issue: 209, P. 106011 - 106011
Published: March 6, 2025
Language: Английский
The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 906, P. 167463 - 167463
Published: Oct. 2, 2023
Soil microbial necromass is an important contributor to soil organic matter (>50%) and it largely composed of residues. In soils, fragmented cell wall residues are mostly found in their polysaccharide forms fungal chitin bacterial peptidoglycan. Microbial biomarkers, particularly amino sugars (AS) such as glucosamine (GlcN) muramic acid (MurA) have been used trace distinguish carbon (C) from non-microbial C. Neutral (NS), the hexose/pentose ratio, also proposed tracers plant polysaccharides soils. our study, we extended range biomarkers include AS NS compounds biomass 120 species belonging archaea, bacteria, fungi, or plants. GlcN was most common all taxa, contributing 42-91% total content, while glucose found, 56-79% NS. We identified talosaminuronic acid, archaeal pseudopeptidoglycan, a new potential biomarker specific for Euryarchaeota. compared variability these between different taxonomic groups using multivariate approaches, non-metric multidimensional scaling (NMDS) partial least squares discriminant analysis (PLS-DA) statistically evaluated via indicator analysis. Both NMDS PLS-DA showcased contents groups, highlighting residue allowing extension separating microbes Finally, estimated conversion factors where converted C by multiplying 10 MurA 54. Conversion galactosamine allow estimation all-microbial C, respectively.
Language: Английский
Citations
14
CATENA, Journal Year: 2024, Volume and Issue: 239, P. 107938 - 107938
Published: March 1, 2024
Language: Английский
Citations
5
Soil Biology and Biochemistry, Journal Year: 2024, Volume and Issue: 197, P. 109530 - 109530
Published: July 11, 2024
Language: Английский
Citations
5
The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 949, P. 174954 - 174954
Published: July 26, 2024
Language: Английский
Citations
5
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
Functional Ecology, Journal Year: 2023, Volume and Issue: 37(10), P. 2634 - 2651
Published: Aug. 24, 2023
Abstract Coastal blue carbon (C) ecosystems are recognized as efficient natural C sinks and play key roles in mitigating global climate change. Microbially driven C, nitrogen (N) sulphur (S) cycles crucial for ecosystem functioning, but how microorganisms drive sink formation sequestration coastal sediments remains unclear. In this study, we conducted a comprehensive analysis of amino sugars, N S cycling genes/pathways their associated taxa native ( Cyperus malaccensis Kandelia obovata ) alien Spartina alterniflora Sonneratia apetala vegetation. Compared to the alien‐vegetated sediment, native‐vegetated sediment had significantly p < 0.05) higher microbial necromass functional potentials chemoautotrophic fixation, degradation, methane cycling, 2 oxidation sulphate reduction. Also, our microbiomes showed that could be coupled with fixation and/or nitrate/nitrite oxidation, degradation were found pathways predicting C. Additionally, sulphur‐oxidizing Burkholderiales metagenome‐assembled genomes (MAGs) group dominated sediments. These results suggested oxidizers, particular novel lineage, might dominates through anabolism (C fixation);the coupling microbially processes; deposition derived This study provides insights into importance oxidizers shed new light on mechanism ecosystems, which also has important implications enhancing wetlands. Read free Plain Language Summary article Journal blog.
Language: Английский
Citations
11
Biology and Fertility of Soils, Journal Year: 2024, Volume and Issue: 60(1), P. 1 - 3
Published: Jan. 1, 2024
Language: Английский
Citations
4
Soil and Tillage Research, Journal Year: 2024, Volume and Issue: 239, P. 106063 - 106063
Published: Feb. 28, 2024
Language: Английский
Citations
4
Applied Soil Ecology, Journal Year: 2024, Volume and Issue: 199, P. 105396 - 105396
Published: April 9, 2024
Language: Английский
Citations
4
Applied Soil Ecology, Journal Year: 2024, Volume and Issue: 202, P. 105538 - 105538
Published: July 24, 2024
Language: Английский
Citations
4