Linking long‑term soil phosphorus management to microbial communities involved in nitrogen reactions

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dc.contributor.authorO'neill, R. M.
dc.contributor.authorDuff, A. M.
dc.contributor.authorBrennan, Feargal Peter
dc.contributor.authorGebremichael, A. W.
dc.contributor.authorGirkin, Nicholas T.
dc.contributor.authorLanigan, G. J.
dc.contributor.authorKrol, D. J.
dc.contributor.authorWall, D. P.
dc.contributor.authorRenou‑Wilson, F.
dc.contributor.authorMüller, C.
dc.contributor.authorRichards, K. G.
dc.contributor.authorDeveautour, C.
dc.date.accessioned2022-03-11T10:07:29Z
dc.date.available2022-03-11T10:07:29Z
dc.date.issued2022-02-24
dc.description.abstractThe influence of soil phosphorous (P) content on the N-cycling communities and subsequent effects on N2O emissions remains unclear. Two laboratory incubation experiments were conducted on soils collected from a long-term (est. 1995) P-addition field trial sampled in summer 2018 and winter 2019. Incubations were treated with a typical field amendment rate of N as well as a C-amendment to stimulate microbial activity. Throughout both incubations, soil subsamples were collected prior to fertiliser amendment and then throughout the incubations, to quantify the abundance of bacteria (16S rRNA), fungi (ITS) and Thaumarcheota (16S rRNA) as well as functional guilds of genes involved in nitrification (bacterial and archaeal amoA, and comammox) and denitrification (nirS, nirK, nosZ clade I and II) using quantitative PCR (qPCR). We also evaluated the correlations between each gene abundance and the associated N2O emissions depending on P-treatments. Our results show that long-term P-application influenced N-cycling genes abundance differently. Except for comammox, overall nitrifiers’ genes were most abundant in low P while the opposite trend was found for denitrifiers’ genes. C and N-amendments strongly influenced the abundance of most genes with changes observed as soon as 24 h after application. ITS was the only gene correlated to N2O emissions in the low P-soils while microbes were mostly correlated to emissions in high P, suggesting possible changes in the organisms involved in N2O production depending on soil P-content. This study highlights the importance of long-term P addition on shaping the microbial community function which in turn stimulates a direct impact on the subsequent N emissions.en_UK
dc.identifier.citationO’Neill RM, Duff AM, Brennan FP, et al., (2022) Linking long‑term soil phosphorus management to microbial communities involved in nitrogen reactions, Biology and Fertility of Soils, Volume 58, Issue 4, May 2022, pp. 389-402en_UK
dc.identifier.eissn1432-0789
dc.identifier.issn0178-2762
dc.identifier.urihttps://doi.org/10.1007/s00374-022-01627-y
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/17641
dc.language.isoenen_UK
dc.publisherSpringeren_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectFunctional genesen_UK
dc.subjectNitrifersen_UK
dc.subjectDenitrifersen_UK
dc.subjectFungien_UK
dc.subjectqPCRen_UK
dc.subjectPhosphorousen_UK
dc.subjectNitrous oxideen_UK
dc.titleLinking long‑term soil phosphorus management to microbial communities involved in nitrogen reactionsen_UK
dc.typeArticleen_UK

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