scholarly journals N2O emission and bacterial community dynamics during realization of the partial nitrification process

RSC Advances ◽  
2018 ◽  
Vol 8 (43) ◽  
pp. 24305-24311 ◽  
Author(s):  
Xiaolin Liu ◽  
Shou-Qing Ni ◽  
Wenshan Guo ◽  
Zhibin Wang ◽  
Hafiz Adeel Ahmad ◽  
...  
Keyword(s):  
Microbial Community ◽  
Bacterial Community ◽  
Greenhouse Gas ◽  
Community Dynamics ◽  
N2o Emission ◽  
Partial Nitrification ◽  
Community Succession ◽  
Bacterial Community Dynamics ◽  
Nitrification Process ◽  
Microbial Community Succession

In this study, greenhouse gas emissions and microbial community succession during the realization of the partial nitrification (PN) process were studied.

scholarly journals Temporal Changes in the Function of Bacterial Assemblages Associated With Decomposing Earthworms

2021 ◽  
Vol 12 ◽  
Author(s):  
Yao-Qin Sun ◽  
Yuan Ge
Keyword(s):  
Microbial Community ◽  
Bacterial Community ◽  
Time Course ◽  
Community Dynamics ◽  
Early Stage ◽  
Bacterial Community Composition ◽  
Terrestrial Ecosystems ◽  
Community Change ◽  
Soil Invertebrate ◽  
Bacterial Community Dynamics

Soil invertebrate corpse decomposition is an ecologically significant, yet poorly understood, process affecting nutrient biogeochemical cycling in terrestrial ecosystems. Here, we attempted to answer how the substrate chemistry and microbial community change during soil invertebrate (earthworm) decomposition and what roles microbes play in this process. Specifically, the dead earthworms (Amynthas corticis) were buried in two soils where the earthworms inhabited, or not, until more than 50% of the earthworm mass was lost. For both soils, earthworms decomposed faster during the early stage (between 0 and 3 days), as reflected by the higher rate of decomposition and increased accumulation of dissolved organic matter (DOM). This decomposition pattern was paralleled by bacterial community dynamics, where bacterial richness and diversity were significantly higher during early decomposition (p < 0.05) with the relative abundances of many genera decreasing as decomposition progressed. The succession of the bacterial community composition was significantly correlated with time-course changes in DOM composition (p < 0.05). Particularly, more functional groups (e.g., microbes associated with carbon, nitrogen, and sulfur cycling) were identified to be linked with the change of a specific DOM type during the early decomposition phase. By exploring the ecologically important process of soil invertebrate decomposition and its associated bacterial communities, this study provides evidence, e.g., a statistically significant positive correlation between bacterial community and DOM compositions, which supports the widely recognized yet less-tested microbial community structure–function relationship hypothesis in invertebrate decomposition.

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