nirS and nosZII bacterial denitrifiers as well as fungal denitrifiers are coupled with N2O emissions in long-term fertilized soils

Wan, Ziwei; Guo-qin, Huang; Rasul, Fahd; Awan, Masood Iqbal; Cui, H.; Liu, Kailou; Yu, Xiang; Tang, Haiying; Wang, Shubin; Xu, Huifang

doi:10.1016/j.scitotenv.2023.165426

Cited by 10 publications

(2 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Additionally, nosZI, nosZII and nirS genes were identified as important for sorghum with manure amendment, but not for only mineral fertiliser sorghum plots, which indicates significance of denitrification in these plots. Previous studies also suggest a higher denitrification potential from manure treatment, highlighting the importance of denitrifying microorganisms in manure-fertilised plots (Clark et al, 2012;Wan et al, 2023). The increased denitrification rate in manure-amended plots may be due to improved soil water retention promoting denitrification and increased availability of labile C content, which is the energy source for denitrifiers.…”

Section: Discussionmentioning

confidence: 91%

Comment on egusphere-2024-593

2024

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 91%

Comment on egusphere-2024-593

2024

View full text Add to dashboard Cite

“…The results from previous multi-year field trials on organic fertilizer management agree with the current study. Previous experiments have shown that the abundance of denitrification genes such as nirS , nosZ , nifH , nirK increased under organic fertilizer regimes, thus contributing to higher yields in cotton 70 , corn 71 and grapes 13 . Following OF applications, we suspect that microorganisms were contributing more easily absorbed nitrogen (ammonia) to the soil environment, and we found that the N content in P. ternata leaves was significantly greater than following treatments where this ammonia was not supplied (CK and CF) (Supplemental Fig.…”

Section: Discussionmentioning

confidence: 99%

Organic fertilizer application promotes the soil nitrogen cycle and plant starch and sucrose metabolism to improve the yield of Pinellia ternata

Wei,

Li,

et al. 2024

Sci Rep

View full text Add to dashboard Cite

Pinellia ternata (Thunb.) Breit is a traditional Chinese medicine with important pharmacological effects. However, its cultivation is challenged by soil degradation following excessive use of chemical fertilizer. We conducted an experiment exploring the effects of replacing chemical fertilizers with organic fertilizers (OF) on the growth and yield of P. ternata, as well as on the soil physicochemical properties and microbial community composition using containerized plants. Six fertilization treatments were evaluated, including control (CK), chemical fertilizer (CF), different proportions of replacing chemical fertilizer with organic fertilizer (OM1−4). Containerized P. ternata plants in each OF treatment had greater growth and yield than the CK and CF treatments while maintaining alkaloid content. The OM3 treatment had the greatest yield among all treatments, with an increase of 42.35% and 44.93% compared to the CK and CF treatments, respectively. OF treatments improved soil quality and fertility by enhancing the activities of soil urease (S-UE) and sucrase (S-SC) enzymes while increasing soil organic matter and trace mineral elements. OF treatments increased bacterial abundance and changed soil community structure. In comparison to the CK microbial groups enriched in OM3 were OLB13, Vicinamibacteraceae, and Blrii41. There were also changes in the abundance of gene transcripts among treatments. The abundance of genes involved in the nitrogen cycle in the OM3 has increased, specifically promoting the transformation of N-NO3− into N-NH4+, a type of nitrogen more easily absorbed by P. ternata. Also, genes involved in "starch and sucrose metabolism" and "plant hormone signal transduction" pathways were positively correlated to P. ternata yield and were upregulated in the OM3 treatment. Overall, OF in P. ternata cultivation is a feasible practice in advancing sustainable agriculture and is potentially profitable in commercial production.

show abstract

Soil bacteria and fungi communities are shaped by elevation influences in Colombian forest and páramo natural ecosystems

et al. 2023

View full text Add to dashboard Cite

The influence of elevation on natural terrestrial ecosystems determines the arrangements of microbial communities in soils to be associated with biotic and abiotic factors. To evaluate changes of fungi and bacteria at the community level along an elevational gradient (between 1000 and 3800 m.a.s.l.), physicochemical measurements of soils, taxonomic identifications of plants, and metabarcoding sequences of the 16S rRNA gene for bacteria and the ITS1 region for fungi were obtained. The bacterial taxonomic composition showed that Acidobacteriota increased in abundance with elevation, while Actinobacteriota and Verrucomicrobiota decreased. Furthermore, Firmicutes and Proteobacteria maintained maximum levels of abundance at intermediate elevations (1200 and 2400 m.a.s.l.). In fungi, Ascomycota was more abundant at higher elevations, Basidiomycota tended to dominate at lower elevations, and Mortierellomycota had a greater presence at intermediate sites. These results correlated with the edaphic parameters of decreasing pH and increasing organic carbon and available nitrogen with elevation. In addition, the Shannon index found a greater diversity in bacteria than fungi, but both showed a unimodal pattern with maximum values in the Andean Forest at 2400 m.a.s.l. Through the microbial characterization of the ecosystems, the elevational gradient, soil properties, and vegetation were found to exert significant effects on microbial communities and alpha diversity indices. We conclude that the most abundant soil microorganisms at the sampling points differed in abundance and diversity according to the variations in factors influencing ecological communities.

show abstract

nirS and nosZII bacterial denitrifiers as well as fungal denitrifiers are coupled with N2O emissions in long-term fertilized soils

Cited by 10 publications

References 50 publications

Comment on egusphere-2024-593

Comment on egusphere-2024-593

Organic fertilizer application promotes the soil nitrogen cycle and plant starch and sucrose metabolism to improve the yield of Pinellia ternata

Soil bacteria and fungi communities are shaped by elevation influences in Colombian forest and páramo natural ecosystems

Contact Info

Product

Resources

About