Special Issue "Plant-N-Cycling Microorganisms Interactions in the Rhizosphere"

A special issue of Microorganisms (ISSN 2076-2607). This special issue belongs to the section "Plant Microbe Interactions".

Deadline for manuscript submissions: 31 December 2021.

Special Issue Editors

Prof. Dr. Eiko Kuramae
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Guest Editor
Department of Microbial Ecology – Netherlands Institute of Ecology (NIOO-KNAW) Wageningen; Ecology and Biodiversity Group, Utrecht University, 3508 TB Utrecht, The Netherlands
Interests: environmental genomics; soil microbial community ecology; N and C cycle interactions; soil–plant–microbe interactions; greenhouse gas mitigation
Special Issues, Collections and Topics in MDPI journals
Dr. Pierfrancesco Nardi
E-Mail Website
Guest Editor
Consiglio per la ricerca e l’analisi dell’economia agraria (Crea), Centro di ricerca Agricoltura e Ambiente – Research Centre for Agriculture and Environment, 00184 Roma, Italy
Interests: rhizosphere–microbial interactions; soil nitrogen cycling; biological nitrification inhibition; nitrification; ammonia-oxidizing microorganisms

Special Issue Information

Dear Colleagues,

Nitrogen (N) is an essential element for all life forms and the major limiting nutrient in plant growth. To satisfy the N demand of plants, huge amounts of N fertilizers are applied to agricultural soils. However, up to half or even more of the applied N is lost to the environment, causing adverse effects on pollution, climate change, and human health. Therefore, reducing anthropogenic pressures on the N cycle remains one of the most challenging problems and a crucial goal in N research.

Plants play an active role in shaping the structure and function of N cycling microbial communities that inhabit the rhizosphere, but a mechanistic understanding of these interactions is still lacking. Addressing this issue, however, is essential to achieving better soil N management and improving the sustainability of agriculture.

In this Special Issue, we encourage submissions of theory-driven studies that provide mechanistic insights into the relationships between plants and N-cycling microorganisms as they occur in and are affected by the rhizosphere. Due to the interconnections among N cycling microorganisms and the processes they carry out, holistic studies embracing such complex relationships and their spatiotemporal variability are most welcome.

Prof. Dr. Eiko Kuramae
Dr. Pierfrancesco Nardi
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Microorganisms is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2000 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • plant–N–microorganism interactions
  • composition and function of nitrogen microbial communities in the rhizosphere
  • arbuscular mycorrhizal symbiosis
  • plant traits and soil N cycling
  • rhizosphere food web

Published Papers (1 paper)

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Research

Article
Effects of the Denitrification Inhibitor “Procyanidins” on the Diversity, Interactions, and Potential Functions of Rhizosphere-Associated Microbiome
Microorganisms 2021, 9(7), 1406; https://0-doi-org.brum.beds.ac.uk/10.3390/microorganisms9071406 - 29 Jun 2021
Viewed by 669
Abstract
Some plant secondary metabolites, such as procyanidins, have been demonstrated to cause biological denitrification inhibition (BDI) of denitrifiers in soils concomitantly with a gain in plant biomass. The present work evaluated whether procyanidins had an impact on the diversity of nontarget microbial communities [...] Read more.
Some plant secondary metabolites, such as procyanidins, have been demonstrated to cause biological denitrification inhibition (BDI) of denitrifiers in soils concomitantly with a gain in plant biomass. The present work evaluated whether procyanidins had an impact on the diversity of nontarget microbial communities that are probably involved in soil fertility and ecosystem services. Lettuce plants were grown in two contrasting soils, namely Manziat (a loamy sand soil) and Serail (a sandy clay loam soil) with and without procyanidin amendment. Microbial diversity was assessed using Illumina sequencing of prokaryotic 16S rRNA gene and fungal ITS regions. We used a functional inference to evaluate the putative microbial functions present in both soils and reconstructed the microbial interaction network. The results showed a segregation of soil microbiomes present in Serail and Manziat that were dependent on specific soil edaphic variables. For example, Deltaproteobacteria was related to total nitrogen content in Manziat, while Leotiomycetes and Firmicutes were linked to Ca2+ in Serail. Procyanidin amendment did not affect the diversity and putative activity of microbial communities. In contrast, microbial interactions differed according to procyanidin amendment, with the results showing an enrichment of Entotheonellaeota and Mucoromycota in Serail soil and of Dependentiae and Rozellomycetes in Manziat soil. Full article
(This article belongs to the Special Issue Plant-N-Cycling Microorganisms Interactions in the Rhizosphere)
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