2019
DOI: 10.1016/j.soilbio.2018.11.003
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Different groups of nitrite-reducers and N2O-reducers have distinct ecological niches and functional roles in West African cultivated soils

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Cited by 51 publications
(26 citation statements)
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“…Grazing exclusion significantly increased the abundance of the nirK gene, but no changes were observed in the abundance of the nirS gene ( Figure 6 ), which was inconsistent with the findings of a previous study in a semiarid steppe ( Pan et al, 2016 ). Our results are consistent with the observations of a recent study in Tibetan alpine meadows ( Xie et al, 2014 ), in which the different responses of the abundances of nirK - and nirS -nitrite reducers to grazing intensity were attributed to niche differentiation between these two groups of denitrifiers for different ecosystems ( Assémien et al, 2019 ). Additionally, nitrate reductase activity was determined by nirK , and there was a positive relationship between enzyme activities and the changes in gene abundances of denitrifier genes ( Barrena et al, 2017 ).…”
Section: Discussionsupporting
confidence: 93%
“…Grazing exclusion significantly increased the abundance of the nirK gene, but no changes were observed in the abundance of the nirS gene ( Figure 6 ), which was inconsistent with the findings of a previous study in a semiarid steppe ( Pan et al, 2016 ). Our results are consistent with the observations of a recent study in Tibetan alpine meadows ( Xie et al, 2014 ), in which the different responses of the abundances of nirK - and nirS -nitrite reducers to grazing intensity were attributed to niche differentiation between these two groups of denitrifiers for different ecosystems ( Assémien et al, 2019 ). Additionally, nitrate reductase activity was determined by nirK , and there was a positive relationship between enzyme activities and the changes in gene abundances of denitrifier genes ( Barrena et al, 2017 ).…”
Section: Discussionsupporting
confidence: 93%
“…1b), resulting in a rather comparable relative abundance of nod genes at 1-1.3%. nod gene abundance was in a similar range as that of nirK and nirS genes observed in other soil ecosystems [15,16], indicating that oxygenic denitrifier abundance can be similar to that of conventional denitrifiers. In contrast to conventional nitrifying and denitrifying microbes [16,17], oxygenic denitrifier abundance examined here seemed not significantly influenced by nitrogen fertilization.…”
supporting
confidence: 71%
“…Overall, the meta-analysis we gathered here (Figure 2) (Assémien et al, 2019;Buchen et al, 2019;Conthe et al, 2019;Shurpali et al, 2016) and some win-win practices may emerge in the near future from increasing SOC to reduce N 2 O emissions. For instance, biochar application known to improve SOC storage (Lehmann et al, 2006) may also be associated with an N 2 O emissions reduction by decreasing labile N availability, N-cycling enzymatic activity and nitrification/denitrification rates (Song et al, 2019).…”
Section: Discussion and Outlookmentioning
confidence: 90%
“…biochar or non‐pyrogenic organic amendment application) may even generate win–win situations through a decrease in N 2 O emissions, although the experimental evidences are still scant. This N 2 O emissions reduction is more and more scrutinized (Assémien et al., 2019; Buchen et al., 2019; Conthe et al., 2019; Shurpali et al., 2016) and some win–win practices may emerge in the near future from increasing SOC to reduce N 2 O emissions. For instance, biochar application known to improve SOC storage (Lehmann et al., 2006) may also be associated with an N 2 O emissions reduction by decreasing labile N availability, N‐cycling enzymatic activity and nitrification/denitrification rates (Song et al., 2019).…”
Section: Discussion and Outlookmentioning
confidence: 99%
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