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Agronomy
Special Issues
Microbiology in Agroecosystems: Microbial Community Abundance and Diversity
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Microbiology in Agroecosystems: Microbial Community Abundance and Diversity

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Farming Sustainability".

Deadline for manuscript submissions: closed (30 September 2021) | Viewed by 5126

Special Issue Editor

Dr. Lise Barthelmebs

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Guest Editor
1. Biocapteurs-Analyses-Environnement, University Perpignan Via Domitia, 66860 Perpignan, France
2. Laboratoire de Biodiversité et Biotechnologies Microbiennes, USR 3579 Sorbonne Universités (UPMC) Paris 6 et CNRS Observatoire Océanologique, 66650 Banyuls-sur-Mer, France
Interests: microbial ecotoxicology; biodegradation; herbicides; contaminant analysis; soil
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Microbial communities are known to be major players in the biological functions of terrestrial and aquatic ecosystems through their involvement in biogeochemical cycles (C, N, P, etc.), but also in a range of ecosystem services including water quality control. In agro-ecosystems, the diversity of these communities is regularly modified by disturbances related to agricultural practices, and the question of the consequences of these modifications for the maintenance of the biological functions and functionalities of agricultural systems is central today.

While the role of biological diversity for the functioning of ecosystems has been well studied in macro-organisms, especially plants, the biodiversity–activity relationship is still very poorly known for environmental microorganisms. Today, the development of new technological advances, in particular those of “omics”, associated to classical cultural microbiology, offer new opportunities for the scientific community and allow progress to be made in responding to the major challenges of microbial ecology research to study the diversity and functionalities of microorganisms. In the current agro-ecological movement, these approaches are necessary to define new cultural practices integrating the management of microbial diversity for the sustainable use of agrosystems.

In this context, in this Special Issue we encourage submissions that make a substantial and up-to-date contribution to the study of microbial communities in environmental ecosystems, more specifically in agrosystems, and addressing either fundamental or applied issues.

Manuscripts dealing with the study of microbial diversity using culture-dependent and culture-independent methods, changes in the structure and function of microbial communities under environmental stresses (interaction with biotic and abiotic factors), environmental adaptations including biodegradation and bioremediation, the impact of agricultural practices on non-targeted microorganisms, and the use of microbes as bioindicators for risk assessment are encouraged, as well as others topics that could fit within the theme of this Special Issue.

Dr. Lise Barthelmebs
Guest Editor

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 submissions that pass pre-check are 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. Agronomy 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 2600 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

  • Microbial communities
  • Agro-ecosystems
  • Pesticides
  • Agricultural practices
  • Environmental risk assessment
  • Non-targeted organisms
  • Biodegradation
  • Bioindicators

Published Papers (2 papers)

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Research

10 pages, 588 KiB  
Article
Changes in Bacterial Soil Biota under Cultivation of Crops near a Municipal Landfill Site
by Dariusz Roman Ropek and Krzysztof Frączek
Agronomy 2021, 11(11), 2114; https://doi.org/10.3390/agronomy11112114 - 21 Oct 2021
Viewed by 1095
Abstract
The study aimed to evaluate the changes in the quantitative composition of a soil bacterial community near a municipal waste landfill, and attempted to use a bacteriological coefficient to assess the degree of soil degradation. The research was carried out near a landfill [...] Read more.
The study aimed to evaluate the changes in the quantitative composition of a soil bacterial community near a municipal waste landfill, and attempted to use a bacteriological coefficient to assess the degree of soil degradation. The research was carried out near a landfill site located in southern Poland. Soil samples were collected from plots on which spring wheat, field bean and potato were cultivated. Microbiological analyses included the determination of the total number of bacteria in active and dormant (sporulating) stages. The highest ratio of sporulating bacteria in relation to vegetative bacteria was found in the reclaimed sector of the landfill site. The proposed bacteriological indicator of soil quality (i.e., the ratio of the number of sporulating bacteria to the number of vegetative forms) seems to be a good index for the assessment of soil quality near the landfill site. Full article
(This article belongs to the Special Issue Microbiology in Agroecosystems: Microbial Community Abundance and Diversity)
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18 pages, 5056 KiB  
Article
Nitrogen Mineralization, Soil Microbial Biomass and Extracellular Enzyme Activities Regulated by Long-Term N Fertilizer Inputs: A Comparison Study from Upland and Paddy Soils in a Red Soil Region of China
by Sehrish Ali, Kailou Liu, Waqas Ahmed, Huang Jing, Muhammad Qaswar, Christian Kofi Anthonio, Ali Akbar Maitlo, Zhang Lu, Lisheng Liu and Huimin Zhang
Agronomy 2021, 11(10), 2057; https://doi.org/10.3390/agronomy11102057 - 13 Oct 2021
Cited by 14 | Viewed by 3455
Abstract
A long-term experiment (38 years) was conducted to elucidate the effects of long-term N addition on the net N mineralization in both paddy and upland soils, based on their initial soil N status, with and in connection with soil microbial biomass and N [...] Read more.
A long-term experiment (38 years) was conducted to elucidate the effects of long-term N addition on the net N mineralization in both paddy and upland soils, based on their initial soil N status, with and in connection with soil microbial biomass and N cycling extracellular enzyme activities. Two treatments without N addition CK (No fertilizer) and K (inorganic potassium fertilizer) and two treatments with N addition (inorganic nitrogen fertilizer) and NK (inorganic nitrogen and potassium fertilizer) were placed in incubation for 90 days. Results showed that the total N and soil organic carbon (SOC) contents were higher in the treatments with N application compared to the treatments without N in both paddy and upland soils. The SOC content of paddy soil was increased relative to upland soil by 56.2%, 45.7%, 61.1% and 62.2% without N (CK, K) and with N (N and NK) treatments, respectively. Site-wise, total N concentration in paddy soil was higher by 0.06, 0.10, 0.57 and 0.60 times under the CK, K, N and NK treatments, respectively, compared with upland soil. In paddy soil, soil microbial biomass nitrogen (SMBN) was higher by 39.6%, 2.77%, 29.5% and 31.4%, and microbial biomass carbon (SMBC) was higher by 11.8%, 11.9%, 10.1% and 12.3%, respectively, in CK, K, N and NK treatment, compared with upland soil. Overall, compared to upland soil, the activities of leucine-aminopeptidase (LAP) were increased by 31%, 18%, 20% and 11%, and those of N-acetyl-b-D-glucosaminidase (NAG) were increased by 70%, 21%, 13% and 18% by CK, K, N and NK treatments, respectively, in paddy soil. A significantly linear increase was found in the NO3−-N and NH4+-N concentrations during the 90 days of the incubation period in both soils. NK treatment showed the highest N mineralization potential (No) along with mineralization rate constant, k (NMR) at the end of the incubation. SMBC, SMBN, enzyme activities, NO3−-N and NH4+-N concentrations and the No showed a highly significant (p ≤ 0.05) positive correlation. We concluded that long-term N addition accelerated the net mineralization by increasing soil microbial activities under both soils. Full article
(This article belongs to the Special Issue Microbiology in Agroecosystems: Microbial Community Abundance and Diversity)
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