Manure fertilizes alter the nitrite oxidizer and comammox community composition and increase nitrification rates

Li, Xiang; Han, Shun; Wan, Wenjie; Zheng, Liuxia; Chen, Wenli; Huang, Qiaoyun

doi:10.1016/j.still.2020.104701

Cited by 40 publications

(11 citation statements)

References 56 publications

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“…Nitrospira can form symbioses with AOB within biofilms, occupying microsites called nitrification aggregates (68). While reciprocal feeding was not measured in this study, it may contribute to the comparable NP between the MLP-COA and MLP-CS, and the IN-COA and IN-CS treatment, as well as the higher relative abundance of Nitrospira in the MLP-COA treatment (69). This study also identified a direct relationship between Nitrospira abundance and NP (Supplementary Figure 4), determined using 16S rRNA gene sequencing, implicating Nitrospira in ammonium oxidation potential.…”

Section: Exploring the Impact Of Manure On Nitrificationmentioning

confidence: 57%

Long Term Influence of Fertility and Rotation on Soil Nitrification Potential and Nitrifier Communities

Raglin

Soman

et al. 2022

Front. Soil Sci.

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The agricultural imprints on soil microbial processes manifest at various timescales, leaving many temporal patterns to present slowly. Unfortunately, the lack of long-term continuous agricultural field sites in North America has left gaps in our understanding of agricultural management on biogeochemical processes and their controlling microbiota. Nitrification, ammonium oxidation by bacteria and archaea, is a critical control point in terrestrial nitrogen fluxes by oxidizing cationic ammonium to anionic nitrate, promoting nitrate leaching. Moreover, nitrous oxide is produced during nitrification, contributing to massive nitrous oxide emissions from fertilized agroecosystems. Nitrification is sensitive to many macro and micro-ecological filters, as nitrifiers are obligate aerobes and are sensitive to numerous non-growth substrates and metal ions. This study sought to understand the long-term implications of various rotation and fertilizer regimes on nitrification potential and nitrifying bacterial communities in the Morrow Plots (Urbana, IL). The Morrow Plots was established in 1876 and are the longest continuous field experiments in North America, making it the only site in America capable of assessing the impact of over 140 years of agricultural management on nitrification. The Morrow Plots contrasts fertilizer (manure, inorganic, unfertilized) and rotation (continuous corn, corn-soy, corn-oat alfalfa), allowing us to explore how conventional vs. regenerative agriculture practices impact nitrifier communities. The results of this study suggest that fertilizer and rotation interact to promote distinct bacterial nitrifier communities. Nitrification potential is highest in manure corn-oat-alfalfa plots, suggesting ammonium availability is not solely responsible for active nitrifier communities. Various soil chemical variables, like CEC, Mg, and Ca, significantly influenced nitrifier community beta-diversity, using 16S rRNA amplicon sequencing, suggesting long-term accumulation of specific cations diverge microbial community assembly. While this study only uses nitrification potential enzyme activity instead of isotope analyses, it sheds light on the importance of various physiochemical drivers on nitrification potential and communities. The results support the need for a more precise exploration of the mechanisms controlling field-scale nitrification rates over large temporal scales. Put together, this study supports the importance of long-term field sites for understanding agricultural manipulations of microbial biogeochemical cycling and sheds light on the micronutrients influencing nitrifier communities and potential activity.

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Section: Exploring the Impact Of Manure On Nitrificationmentioning

confidence: 57%

Long Term Influence of Fertility and Rotation on Soil Nitrification Potential and Nitrifier Communities

Raglin

Soman

et al. 2022

Front. Soil Sci.

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“…In our study, pH (pH = 8.16 ~ 8.36) was negatively correlated with the AOA and comammox clade-A community compositions but not with the AOB and comammox clade-B community compositions. Soil NH 4 + -N acted as a substrate for ammonia oxidizers and thus influenced their community compositions (Li et al, 2020). A previously report showed that AOA was more in soils with lower AN levels, while AOB became more abundant in soils with higher AN levels (Prosser and Nicol, 2012).…”

Section: Response Of Ammonia Oxidants To Soil Physicochemical Propertiesmentioning

confidence: 99%

Effects of straw returning combined with earthworm addition on nitrification and ammonia oxidizers in paddy soil

Chu

Bai²,

Zheng³

et al. 2022

Front. Microbiol.

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“…Soil pH was determined in a 1:2.5 water suspension using a pH meter (Sartorious PE10, Germany). Litter organic carbon (LOC) and SOC of soil were measured by the K 2 CrO 7 -H 2 SO 4 oxidation method at 180 C for 5 min, followed by titration with FeSO 4 (Li et al, 2020). Each sample was digested with H 2 SO 4 under catalysis conditions (CuSO 4 : K 2 SO 4 : 1:10 mixture) on a digestion block at 420 C for 1 h (litter samples) and 2 h (soil samples), respectively, and a flow injection system (FIAstar 5000 Analyser, Foss, Denmark) was used to determine the concentrations of TN and TP in litter and soil.…”

Section: Litter and Soil Chemical Analysismentioning

confidence: 99%

Soil fungal and bacterial communities are altered by the incorporation of leaf litter containing a fungal endophyte

Jin

Wei

White

et al. 2022

European J Soil Science

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Litter decomposition plays a key role in nutrient cycling across ecosystems. The presence of Epichloë endophytes in grass plants affects litter decomposition. The overall effects of leaf litter containing Epichloë endophytes on the chemical and biological properties in non-rhizosphere soils have not previously been examined.The current study is aimed to understand the effect of direct incorporation of leaf litter from Epichloë endophyte-infected perennial ryegrass (Lolium perenne) on soil chemical characteristics, and fungal and bacterial biodiversity. Firstly, fresh leaf litter of the endophyte Epichloë festucae var. lolii-infected (E+) and endophyte-free (EÀ) L. perenne were incorporated into the soil, and then samples were collected from E+ and EÀ litter incorporated soil at T 0 , T 1 , T 2 and T 3 (0, 120, 240 and 360 days) for chemical and sequencing analyses. The Epichloë-containing leaf litter incorporation changed the soil microbial environment by enhancing the soil organic carbon (SOC), total nitrogen (TN), total phosphorus, NH 4 + -N and NO 3 À -N contents, and acidifying soil pH. The endophyte had stronger effects on soil bacteria than soil fungi when the litter was determined with and without the endophyte. Litter containing the Epichloë endophyte significantly increased the absolute abundance of the 16S rRNA gene and relative abundances of the Actinobacteria, Nitrospirae and Gemmatimonadetes, while significantly decreasing the relative abundances of the Planctomycetes and Rokubacteria and the diversity in soil bacteria community. There was no significant effect of endophytecontaining leaf litter incorporation on the absolute abundance and diversity of the soil fungal community except the increment in the relative abundance of Rozellomycota. Soil pH and the SOC-to-TN ratio (C:N) were the main factors influencing the soil bacterial community, and the presence of E. festucae var. lolii was directly and positively related to the soil bacterial diversity. The current study established that Epichloë endophyte-infection altered the abundance and diversity of the soil bacterial community by affecting leaf litter quality and increasing soil chemical properties after litter incorporation.Yuanyuan Jin and Xuekai Wei contributed equally to this study.Yuanyuan Jin and Xuekai Wei should be considered the joint first author.

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Manure fertilizes alter the nitrite oxidizer and comammox community composition and increase nitrification rates

Cited by 40 publications

References 56 publications

Long Term Influence of Fertility and Rotation on Soil Nitrification Potential and Nitrifier Communities

Long Term Influence of Fertility and Rotation on Soil Nitrification Potential and Nitrifier Communities

Effects of straw returning combined with earthworm addition on nitrification and ammonia oxidizers in paddy soil

Soil fungal and bacterial communities are altered by the incorporation of leaf litter containing a fungal endophyte

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