Effect of the nitrification inhibitor dicyandiamide (DCD) on microbial communities in a pasture soil amended with bovine urine

O’Callaghan, Maureen; Gerard, Emily; Carter, Philip E.; Lardner, Richard; Sarathchandra, U.; Burch, G.; Ghani, A.; Bell, N.L.

doi:10.1016/j.soilbio.2010.05.003

Cited by 132 publications

(84 citation statements)

References 60 publications

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“…In contrast to AOB, AOA did not respond to urea and NIs (Fig. 3b), which was consistent with previous conclusions (Jia and Conrad 2009;O'Callaghan et al 2010;Gong et al 2013). Moreover, Shen et al (2013) concluded that AOA might be less sensitive than AOB to different NIs due to their fundamental cellular and metabolic differences.…”

Section: Nitrosospira Nitrososmonassupporting

confidence: 90%

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Effects of dicyandiamide and acetylene on N2O emissions and ammonia oxidizers in a fluvo-aquic soil applied with urea

Wang

Zhang

Shen

et al. 2016

Environ Sci Pollut Res

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Ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA) are crucial for N 2 O emission as they carry out the key step of nitrification. Dicyandiamide (DCD) and acetylene (C 2 H 2 ) are typical nitrification inhibitors (NIs), while the comparative effects of these NIs on N 2 O production and ammonia oxidizers' (AOB and AOA) growth are unclear. Four treatments including a control, urea, urea + DCD, and urea + C 2 H 2 were set up to investigate their effect of inhibiting soil nitrification, nitrification-related N 2 O emission as well as the growth of ammonia oxidizers with a fluvo-aquic soil using microcosms for 28 days. N 2 O emission and net nitrification rate increased after the application of urea, but were significantly restrained in urea + NI treatments, while C 2 H 2 was more effective in reducing N 2 O emission and nitrification rate than DCD. The abundance of AOB, which was significantly correlated with N 2 O emission and net nitrification rate, was more inhibited by C 2 H 2 than DCD. Furthermore, the application of urea in all the soils had little impact on the AOA community, while obvious shifts of AOB community structure were found compared with the control. All AOB sequences fell within Nitrosospira cluster 3, and the AOA community was clustered to group 1.1b. Collectively, it indicated that application of urea combined with NIs (DCD or C 2 H 2 ) could potentially alter N 2 O emission, mainly through regulating the growth of AOB but not AOA in this fluvo-aquic soil.

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Section: Nitrosospira Nitrososmonassupporting

confidence: 90%

“…DCD, one of the most widely used nitrification inhibitors, retards the activities of ammonia oxidizers and thereby reduces nitrification and N 2 O (O'Callaghan et al 2010). C 2 H 2 is another effective inhibitor and works on autotrophic nitrification at a low concentration (10-100 Pa) (Zhu et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Effects of dicyandiamide and acetylene on N2O emissions and ammonia oxidizers in a fluvo-aquic soil applied with urea

Wang

Zhang

Shen

et al. 2016

Environ Sci Pollut Res

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“…These conditions are likely to have supported a greater richness in ammoniaoxidizing Archaea communities in pasture soil. Similar results for ammonia-oxidizing Archaea communities were shown by O'Callaghan et al (2010) in response to the addition of urine to soil.…”

Section: Discussionsupporting

confidence: 80%

Land-use systems affect Archaeal community structure and functional diversity in western Amazon soils

Navarrete¹,

Taketani²,

Mendes³

et al. 2011

Rev. Bras. Ciênc. Solo

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SUMMARYThe study of the ecology of soil microbial communities at relevant spatial scales is primordial in the wide Amazon region due to the current land use changes. In this study, the diversity of the Archaea domain (community structure) and ammonia-oxidizing Archaea (richness and community composition) were investigated using molecular biology- (H' = 1,9629; D = 0,1715), cultivo agrícola (H' = 1,4613; D = 0,3309) e floresta secundária (H' = 0,8633; D = 0,5405

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“…However, the relatively long cooling phase and slightly higher temperature during mature phase indicated that DMPP just inhibited the microbial activity and did not killed the microbes. This was due to the properties of NI, which is a bacteriostatic agent rather than a bactericide (O'Callaghan et al 2010). Furthermore, the natural zeolite addition led to lower temperature during the cooling and mature phase in comparison with the control and slightly higher pile temperature during the thermophilic stage.…”

Section: Pile Temperature and Ph Valuementioning

confidence: 96%

Influence of natural zeolite and nitrification inhibitor on organics degradation and nitrogen transformation during sludge composting

Zhang

Sui

et al. 2015

Environ Sci Pollut Res

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Sludge composting is one of the most widely used treatments for sewage sludge resource utilization. Natural zeolite and nitrification inhibitor (NI) are widely used during composting and land application for nitrogen conservation, respectively. Three composting reactors (A-the control, B-natural zeolite addition, and C-3,4-dimethylpyrazole phosphate (DMPP) addition) were established to investigate the influence of NI and natural zeolite addition on organics degradation and nitrogen transformation during sludge composting conducted at the lab scale. The results showed that, in comparison with the control, natural zeolite addition accelerated organics degradation and the maturity of sludge compost was higher, while the DMPP addition slowed down the degradation of organic matters. Meanwhile, the nitrogen transformation functional genes including those responses for nitrification (amoA and nxrA) and denitrification (narG, nirS, nirK, and nosZ) were quantified through quantitative PCR (qPCR) to investigate the effects of natural zeolites and DMPP addition on nitrogen transformation. Although no significant difference in the abundance of nitrogen transformation functional genes was observed between treatments, addition of both natural zeolite and DMPP increases the final total nitrogen content by 48.6 % and 23.1 %, respectively. The ability of natural zeolite for nitrogen conservation was due to the absorption of NH 3 by compost, and nitrogen conservation by DMPP was achieved by the source reduction of denitrification. Besides, it was assumed that the addition of natural zeolite and DMPP may affect the activity of these genes instead of the abundance.

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Effect of the nitrification inhibitor dicyandiamide (DCD) on microbial communities in a pasture soil amended with bovine urine

Cited by 132 publications

References 60 publications

Effects of dicyandiamide and acetylene on N2O emissions and ammonia oxidizers in a fluvo-aquic soil applied with urea

Effects of dicyandiamide and acetylene on N2O emissions and ammonia oxidizers in a fluvo-aquic soil applied with urea

Land-use systems affect Archaeal community structure and functional diversity in western Amazon soils

Influence of natural zeolite and nitrification inhibitor on organics degradation and nitrogen transformation during sludge composting

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