Nitrogen fertilization rates mediate rhizosphere soil carbon emissions of continuous peanut monoculture by altering cellulose-specific microbess DOI Creative Commons

Zhengfeng Wu,

Zhaohui Tang, Tianyi Yu

et al.

Frontiers in Plant Science, Journal Year: 2023, Volume and Issue: 14

Published: March 3, 2023

Crops influence both soil microbial communities and organic carbon (SOC) cycling through rhizosphere processes, yet their responses to nitrogen (N) fertilization have not been well investigated under continuous monoculture. In this study, from a 5-year mono-cropped peanut land were examined using Illumina HighSeq sequencing, with an N gradient that included 0 (N0), 60 (N60), 120 (N120) 180 (N180) kg hm-2. Soil respiration rate (R s) its temperature sensitivity (Q 10) determined, carbon-acquiring enzyme activities assayed. The obtained results showed fertilization, mineral (Nmin) was highly increased the C/N ratio decreased; yields unchanged, but root biomass stimulated only at N120. of β-1,4-glucosidase polyphenol oxidase reduced across application rates, β-1,4-cellobiohydrolase Bacterial alpha diversity fungal richness N60 For bacterial groups, relative abundance Acidobacteria reduced, while those Alphaproteobacteria Gammaproteobacteria members, pathogenic Sordariomycetes inhibited, saprotrophic Agaricomycetes promoted, regardless rates. RDA identified different factors driving variations in (root biomass) community composition. R s slightly significantly N120, mainly promotion cellulose-related microbes, decreased N180, likely due limitation. (MBC) N60, N120 SOC suppressed dissolved (DOC) N180. addition, unchanged Q 10 may be joint result several mechanisms counteracted each other. These are critical importance for assessing sustainability continuously monocultured ecosystems, especially when confronting global climate change.

Language: Английский

Nitrogen addition decreases methane uptake caused by methanotroph and methanogen imbalances in a Moso bamboo forest DOI Creative Commons
Quan Li, Changhui Peng, Junbo Zhang

et al.

Scientific Reports, Journal Year: 2021, Volume and Issue: 11(1)

Published: March 10, 2021

Abstract Forest soils play an important role in controlling global warming by reducing atmospheric methane (CH 4 ) concentrations. However, little attention has been paid to how nitrogen (N) deposition may alter microorganism communities that are related the CH cycle or oxidation subtropical forest soils. We investigated effects of N addition (0, 30, 60, 90 kg ha −1 yr on soil flux and methanotroph methanogen abundance, diversity, community structure a Moso bamboo ( Phyllostachys edulis China. significantly increased abundance but reduced both diversity. Methanotroph structures under treatments were different from those control. In treatments, relative Methanoculleus was lower than Soil pH key factor regulating changes diversity structure. The emission rate with negatively correlated positively abundance. Overall, our results suggested can suppress uptake altering

Language: Английский

Citations

42
Soil bacteria are more sensitive than fungi in response to nitrogen and phosphorus enrichment DOI Creative Commons

Youchao Chen,

Shuwei Yin,

Yun Shao

et al.

Frontiers in Microbiology, Journal Year: 2022, Volume and Issue: 13

Published: Sept. 23, 2022

Anthropogenic activities have dramatically increased nitrogen (N) and phosphorous (P) enrichments in terrestrial ecosystems. However, it is still unclear on how bacterial fungal communities would respond to the simultaneously N P enrichment. In this study, we used a field experiment simulate input, examined effects of additions abundance, alpha-diversity, community composition soil bacteria fungi riparian forest. Six nutrient-addition treatments, including low (30 kg ha-1 year-1), high (150 ha -1 P2O5 N+P, control (CK) treatment were set up. We found that significantly affected composition, but not alpha diversity. Specifically, 16S, nirK, nirS gene copy numbers reduced after additions, which correlated with decreases pH NO-3-N, respectively; Co-additions showed antagonistic interactions copies; Nutrient relative abundance Proteobacteria while Chloroflexi. Mantel's test alteration was associated changes NO-3-N. The nutrient did show significant numbers, diversity, could be due non-significant alterations C/N total concentration. conclusion, our results suggest are more sensitive than response enrichment; NO-3-N explain enrichment communities, co-addition reduces negative these two nutrients addition alone. These findings improve understanding microbial addition, especially context simultaneous anthropogenic inputs.

Language: Английский

Citations

33
Bioretention system mediated by different dry–wet alterations on nitrogen removal: Performance, fate, and microbial community DOI
Yao Chen,

Renyu Chen,

Zhen Liu

et al.

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 827, P. 154295 - 154295

Published: March 2, 2022

Language: Английский

Citations

29
Distinct Responses of Abundant and Rare Soil Bacteria to Nitrogen Addition in Tropical Forest Soils DOI Creative Commons
Jinhong He, Xiangping Tan, Yanxia Nie

et al.

Microbiology Spectrum, Journal Year: 2023, Volume and Issue: 11(1)

Published: Jan. 9, 2023

Atmospheric nitrogen (N) deposition is a worldwide environmental problem and threatens biodiversity ecosystem functioning. Understanding the responses of community dynamics assembly processes abundant rare soil bacterial taxa to anthropogenic N enrichment vital for management N-polluted forest soils.

Language: Английский

Citations

17
Nitrogen fertilization rates mediate rhizosphere soil carbon emissions of continuous peanut monoculture by altering cellulose-specific microbess DOI Creative Commons

Zhengfeng Wu,

Zhaohui Tang, Tianyi Yu

et al.

Frontiers in Plant Science, Journal Year: 2023, Volume and Issue: 14

Published: March 3, 2023

Crops influence both soil microbial communities and organic carbon (SOC) cycling through rhizosphere processes, yet their responses to nitrogen (N) fertilization have not been well investigated under continuous monoculture. In this study, from a 5-year mono-cropped peanut land were examined using Illumina HighSeq sequencing, with an N gradient that included 0 (N0), 60 (N60), 120 (N120) 180 (N180) kg hm-2. Soil respiration rate (R s) its temperature sensitivity (Q 10) determined, carbon-acquiring enzyme activities assayed. The obtained results showed fertilization, mineral (Nmin) was highly increased the C/N ratio decreased; yields unchanged, but root biomass stimulated only at N120. of β-1,4-glucosidase polyphenol oxidase reduced across application rates, β-1,4-cellobiohydrolase Bacterial alpha diversity fungal richness N60 For bacterial groups, relative abundance Acidobacteria reduced, while those Alphaproteobacteria Gammaproteobacteria members, pathogenic Sordariomycetes inhibited, saprotrophic Agaricomycetes promoted, regardless rates. RDA identified different factors driving variations in (root biomass) community composition. R s slightly significantly N120, mainly promotion cellulose-related microbes, decreased N180, likely due limitation. (MBC) N60, N120 SOC suppressed dissolved (DOC) N180. addition, unchanged Q 10 may be joint result several mechanisms counteracted each other. These are critical importance for assessing sustainability continuously monocultured ecosystems, especially when confronting global climate change.

Language: Английский

Citations

17