Response of ammonia-oxidizing bacteria and archaea to biochemical quality of organic inputs combined with mineral nitrogen fertilizer in an arable soil

Muema, Esther; Cadisch, Georg; Röhl, Carolin; Vanlauwe, Bernard; Rasche, Frank

doi:10.1016/j.apsoil.2015.06.019

Cited by 30 publications

(15 citation statements)

References 73 publications

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“…AOA and AOB abundances were both positive to SOC in the wheat season ( P < 0.01). These findings were agreed with several previous studies who reported AOA and AOB abundances increased with SOC in dry land, such as cotton, maize 31,41 . Besides, the AOA abundance was negatively correlated with C/N in the rice season ( P < 0.05).…”

Section: Discussionsupporting

confidence: 94%

Effect of Straw and Straw Biochar on the Community Structure and Diversity of Ammonia-oxidizing Bacteria and Archaea in Rice-wheat Rotation Ecosystems

Zhang

Sun

Zhou

et al. 2019

Sci Rep

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Ammonia oxidation is the first and rate-limiting step of nitrification, driven by ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA). Straw and straw biochar retention are the popular ways to utilize the agricultural by-products in China, but their long-term effects on AOB and AOA still remain poorly understood. Based on a 7-year plot experiment, which had 4 fertilization regimes: no fertilizer (CK), regular fertilization (RT), straw retention (SR) and straw biochar retention (SB), the abundance and the composition of AOB and AOA was investigated before both the harvest of rice and wheat season by quantitative PCR and 454 high-throughput pyrosequencing, respectively. (1) Compared to RT, straw and straw biochar increased AOB abundance and diversity significantly only in wheat season ( P < 0.05), and they both ranked as SB > SR > RT. Among fertilized treatments, a significant difference between SR and RT was found in AOB community composition of the winter season ( R value = 0.58, P value = 0.02); (2) In contrast, AOA was almost not responsive to organic addition, except the significant enhancement of abundance by biochar in wheat season; (3) After straw and straw biochar addition, soil potential nitrification rates (PNR) was positive correlated to AOB abundance in both rice and wheat season ( P < 0.01), not to AOA abundance ( P = 0.211 and 0.068, respectively). This study provides scientific support for the potential of straw utilization to improve nitrification in rice-wheat rotation system with respect to soil ammonia oxidation microorganism.

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Section: Discussionsupporting

confidence: 94%

Effect of Straw and Straw Biochar on the Community Structure and Diversity of Ammonia-oxidizing Bacteria and Archaea in Rice-wheat Rotation Ecosystems

Zhang

Sun

Zhou

et al. 2019

Sci Rep

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“…At sowing, all plots received a blanket application of 60 kg P 2 O 5 ha −1 season −1 as diammonium phosphate (DAP) (NH 4 ) 2 HPO 4 ) to avoid any phosphorus limitation. In addition, mineral N fertilizer was split applied to treatments C + S and F + S as calcium ammonium nitrate (CaNH 4 NO 3 ) at a rate of 120 kg N ha −1 growing season −1 with 1/3 and 2/3 added 3 and 8 weeks after sowing, respectively ( Chivenge et al, 2011 , Muema et al, 2015 ). For treatment F + S + T, N was applied as fresh T. diversifolia leaf and stem material (5 t dry weight ha −1 to supply similar levels to 120 kg of inorganic N) which was hand-incorporated to a soil depth of 0–15 cm at the onset of each rainy season.…”

Section: Methodsmentioning

confidence: 99%

“…An R score of 1 indicated a complete separation, while 0 indicated no separation ( Rees et al, 2005 ). For graphical visualization of the distinct effect of factor “Growth stage” and “Site” on the composition of analyzed prokaryotic communities, canonical analysis of principal coordinates (CAP) was performed on resemblance matrix data generated based on Bray-Curtis similarity coefficients ( Clarke, 1993 , Anderson et al, 2008 , Muema et al, 2015 ). Moreover, to test the influence of soil chemical properties on the community composition shifts of assayed genes, distance-based linear models (DISTLM) were used (Permanova+ software package in Primer v6) ( Anderson et al, 2008 ).…”

Section: Methodsmentioning

confidence: 99%

Soil properties, seasonality and crop growth stage exert a stronger effect on rhizosphere prokaryotes than the fungal biocontrol agent Fusarium oxysporum f.sp. strigae

Musyoki

Cadisch

Zimmermann

et al. 2016

Applied Soil Ecology

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Highlights Natural factors had major effects on community dynamics of microbial target groups. Conversely, “Foxy-2” exposed no major effect on rhizosphere microbial communities. Archaeal community had greater rhizosphere competence than “Foxy-2” in clayey soil. Compatibility of indigenous soil nitrifying prokaryotes with “Foxy-2” was verified.

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“…There is some suggestion urea decreases E. coli growth but the evidence is not strong. It has been shown that urea is toxic at higher concentrations (Muema et al 2015;Soman et al 2017) and thus the possibility exists that our exposure rates caused a reduction in growth which also may influence any utilization of urea.…”

Section: Growth and Nutrient Production After 24 H Urea Exposurementioning

confidence: 99%

The Possible Roles of Escherichia coli in the Nitrogen Cycle

et al. 2019

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This study was designed to determine the response of Escherichia coli to three different nutrient sources. In this study, E. coli was exposed to concentrations of ammonia as ammonium chloride and nitrate as sodium nitrate at 0.5, 1.0 and 2.0 mg/L; and reagent grade urea at 10, 20 and 30 µg/L using bacterial concentrations of 10 −1 , 10 −2 and 10 −3 per ml. Cultures were incubated for 24 h at 37 °C. Samples were analyzed using a LACHET™ (800 Series) for ammonia-N, Nitrate-N and Urea-N which was converted to molar concentrations. Growth rates for E. coli were determined using serial dilutions, incubated on 3 M™ Petrifilm™ for 24 h at 37 °C with colony counts taken. The results showed that E. coli was able to utilize both ammonia and nitrate, with ammonium utilization significantly greater than nitrate. Ammonium utilization was directly proportional to concentration of ammonium chloride added and to some degree, the initial number of bacteria exposed. Nitrate utilization occurred at all concentrations and dilutions when compared with control concentrations and corresponded with concentrations of nitrate, but there was very little difference between bacterial dilutions. Urea production did occur but was unaffected by either concentration of urea or bacteria dilution. Positive growth rates were seen with ammonium with increasing growth rates as ammonium chloride concentrations were increased. Urea appeared to cause a slight decrease in growth, but nitrate was inconclusive with regard to growth.

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Response of ammonia-oxidizing bacteria and archaea to biochemical quality of organic inputs combined with mineral nitrogen fertilizer in an arable soil

Cited by 30 publications

References 73 publications

Effect of Straw and Straw Biochar on the Community Structure and Diversity of Ammonia-oxidizing Bacteria and Archaea in Rice-wheat Rotation Ecosystems

Effect of Straw and Straw Biochar on the Community Structure and Diversity of Ammonia-oxidizing Bacteria and Archaea in Rice-wheat Rotation Ecosystems

Soil properties, seasonality and crop growth stage exert a stronger effect on rhizosphere prokaryotes than the fungal biocontrol agent Fusarium oxysporum f.sp. strigae

The Possible Roles of Escherichia coli in the Nitrogen Cycle

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