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Phenol and Polyaromatic Hydrocarbons Are Stronger Drivers Than Host Plant Species in Shaping the Arbuscular Mycorrhizal Fungal Component of the Mycorrhizosphere. Int J Mol Sci 2022; 23:ijms232012585. [PMID: 36293448 PMCID: PMC9604154 DOI: 10.3390/ijms232012585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 10/10/2022] [Accepted: 10/17/2022] [Indexed: 11/30/2022] Open
Abstract
Changes in soil microbial communities in response to hydrocarbon pollution are critical indicators of disturbed ecosystem conditions. A core component of these communities that is functionally adjusted to the life-history traits of the host and environmental factors consists of arbuscular mycorrhizal fungi (AMF). AMF communities associated with Poa trivialis and Phragmites australis growing at a phenol and polynuclear aromatic hydrocarbon (PAH)-contaminated site and at an uncontaminated site were compared based on LSU rDNA sequencing. Dissimilarities in species composition and community structures indicated soil pollution as the main factor negatively affecting the AMF diversity. The AMF communities at the contaminated site were dominated by fungal generalists (Rhizophagus, Funneliformis, Claroideoglomus, Paraglomus) with wide ecological tolerance. At the control site, the AMF communities were characterized by higher taxonomic and functional diversity than those exposed to the contamination. The host plant identity was the main driver distinguishing the two AMF metacommunities. The AMF communities at the uncontaminated site were represented by Polonospora, Paraglomus, Oehlia, Nanoglomus, Rhizoglomus, Dominikia, and Microdominikia. Polonosporaceae and Paraglomeraceae were particularly dominant in the Ph. australis mycorrhizosphere. The high abundance of early diverging AMF could be due to the use of primers able to detect lineages such as Paraglomeracae that have not been recognized by previously used 18S rDNA primers.
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Chen K, Huang G, Li Y, Zhang X, Lei Y, Li Y, Xiong J, Sun Y. Illumina MiSeq Sequencing Reveals Correlations among Fruit Ingredients, Environmental Factors, and AMF Communities in Three Lycium Barbarum Producing Regions of China. Microbiol Spectr 2022; 10:e0229321. [PMID: 35234495 PMCID: PMC8941938 DOI: 10.1128/spectrum.02293-21] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 01/19/2022] [Indexed: 11/20/2022] Open
Abstract
The symbiotic relationship of arbuscular mycorrhizal fungi (AMF) is important for Lycium barbarum, a highly nutritious and medicinal crop. However, the influence of environmental factors on AMF communities remains largely elusive. Based on MiSeq sequencing, we analyzed AMF communities in rhizosphere soils of L. barbarum with growth synchronization in three typical L. barbarum cultivation sites in China. The Zhongning region has poor soils with a high richness of AMF communities. Geographical environmental variances lead to differences in AMF communities which in turn affects the active ingredients of L. barbarum fruit. Furthermore, different genera of AMF showed significant correlations with environmental factors and fruit ingredients. The three genera, Claroideoglomus, Dominikia, and Funneliformis correlated to environmental factors and fruits ingredients in a similar manner affecting the whole sugar (TS) and flavonoids (FLA) contents in the fruits of L. barbarum. Also, these showed a significantly positive correlation with soil pH. This fact was unknown so far due to different soil acidity/alkalinity in different studies. IMPORTANCE The climatic and ecological environment is a complex phenomenon, involving various environmental factors that regulate the diversity and population distribution structure of AMF communities affecting plant growth, crop composition, and yield. Current studies on the effects of environmental factors on AMF communities have mainly focused on soil conditions and host plants. Fewer studies have been conducted on the correlation between temperature, enzyme activity, plant fruiting, and AMF communities. The present study investigated the diversity of AMF communities and the influence of environmental factors on their distribution patterns, which showed similar effects on some AMF species. The results suggest that screening AMF fungicides that meet the target may significantly help soil restoration reducing the use of chemical fertilizers and a large amount of human and material resources.
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Affiliation(s)
- Kaili Chen
- College of Life Sciences/Xinjiang Production and Construction Corps Key Laboratory of Oasis Town and Mountain-basin System Ecology, Shihezi University, Shihezi, Xinjiang, China
| | - Gang Huang
- College of Life Sciences/Xinjiang Production and Construction Corps Key Laboratory of Oasis Town and Mountain-basin System Ecology, Shihezi University, Shihezi, Xinjiang, China
| | - Yuekun Li
- National Wolfberry Engineering Research Center, Wolfberry Science Research Institute, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, China
| | - Xinrui Zhang
- College of Life Sciences/Xinjiang Production and Construction Corps Key Laboratory of Oasis Town and Mountain-basin System Ecology, Shihezi University, Shihezi, Xinjiang, China
| | - Yonghui Lei
- Department of Plant Protection, College of Agriculture, Shihezi University, Shihezi, Xinjiang, China
| | - Yang Li
- College of Life Sciences/Xinjiang Production and Construction Corps Key Laboratory of Oasis Town and Mountain-basin System Ecology, Shihezi University, Shihezi, Xinjiang, China
| | - Jie Xiong
- College of Life Sciences/Xinjiang Production and Construction Corps Key Laboratory of Oasis Town and Mountain-basin System Ecology, Shihezi University, Shihezi, Xinjiang, China
| | - Yanfei Sun
- College of Life Sciences/Xinjiang Production and Construction Corps Key Laboratory of Oasis Town and Mountain-basin System Ecology, Shihezi University, Shihezi, Xinjiang, China
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3
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Diversity of Arbuscular Mycorrhizal Fungi in the Ecuadorian Amazon Region. Fungal Biol 2022. [DOI: 10.1007/978-3-031-12994-0_7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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4
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Gleeson DB, Martin BC, Lardner T, Ball AS, Grice K, Holman AI, Trolove A, Manix M, Tibbett M, Bending GD, Hilton S, Ryan MH. Natural attenuation of legacy hydrocarbon spills in pristine soils is feasible despite difficult environmental conditions in the monsoon tropics. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 799:149335. [PMID: 34371400 DOI: 10.1016/j.scitotenv.2021.149335] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 07/08/2021] [Accepted: 07/25/2021] [Indexed: 06/13/2023]
Abstract
The Kimberley region of Western Australia is a National Heritage listed region that is internationally recognised for its environmental and cultural significance. However, petroleum spills have been reported at a number of sites across the region, representing an environmental concern. The region is also characterised as having low soil nutrients, high temperatures and monsoonal rain - all of which may limit the potential for natural biodegradation of petroleum. Therefore, this work evaluated the effect of legacy petroleum hydrocarbons on the indigenous soil microbial community (across the domains Archaea, Bacteria and Fungi) at three sites in the Kimberley region. At each site, soil cores were removed from contaminated and control areas and analysed for total petroleum hydrocarbons, soil nutrients, pH and microbial community profiling (using16S rRNA and ITS sequencing on the Illumina MiSeq Platform). The presence of petroleum hydrocarbons decreased microbial diversity across all kingdoms, altered the structure of microbial communities and increased the abundance of putative hydrocarbon degraders (e.g. Mycobacterium, Acremonium, Penicillium, Bjerkandera and Candida). Microbial community shifts from contaminated soils were also associated with an increase in soil nutrients (notably Colwell P and S). Our study highlights the long-term effect of legacy hydrocarbon spills on soil microbial communities and their diversity in remote, infertile monsoonal soils, but also highlights the potential for natural attenuation to occur in these environments.
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Affiliation(s)
- Deirdre B Gleeson
- UWA School of Agriculture and Environment, University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia.
| | - Belinda C Martin
- Ooid Scientific, South Fremantle 6162, Australia; School of Biological Sciences, The University of Western Australia, Crawley, WA, Australia
| | - Tim Lardner
- UWA School of Agriculture and Environment, University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia
| | | | - Kliti Grice
- WA-Organic and Isotope Geochemistry Centre, School of Earth and Planetary Sciences, Curtin University, Kent Street, Bentley 6102, Australia
| | - Alex I Holman
- WA-Organic and Isotope Geochemistry Centre, School of Earth and Planetary Sciences, Curtin University, Kent Street, Bentley 6102, Australia
| | | | - Megan Manix
- Horizon Power, 18 Brodie Hall Drive, Bentley 6102, Australia
| | - Mark Tibbett
- Department of Sustainable Land Management & Soil Research Centre, School of Agriculture, Policy and Development, University of Reading, Reading, Berkshire RG6 6AH, UK; School of Biological Sciences, The University of Western Australia, Crawley, WA, Australia
| | - Gary D Bending
- School of Life Sciences, University of Warwick, Coventry CV4 7AL, UK
| | - Sally Hilton
- School of Life Sciences, University of Warwick, Coventry CV4 7AL, UK
| | - Megan H Ryan
- UWA School of Agriculture and Environment, University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia
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Kolaříková Z, Slavíková R, Krüger C, Krüger M, Kohout P. PacBio sequencing of Glomeromycota rDNA: a novel amplicon covering all widely used ribosomal barcoding regions and its applicability in taxonomy and ecology of arbuscular mycorrhizal fungi. THE NEW PHYTOLOGIST 2021; 231:490-499. [PMID: 33780549 DOI: 10.1111/nph.17372] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 03/23/2021] [Indexed: 05/02/2023]
Abstract
There is no consensus barcoding region for determination of arbuscular mycorrhizal fungal (AMF) taxa. To overcome this obstacle, we have developed an approach to sequence an AMF marker within the ribosome-encoding operon (rDNA) that covers all three widely applied variable molecular markers. Using a nested PCR approach specific to AMF, we amplified a part (c. 2.5 kb) of the rDNA spanning the majority of the small subunit rRNA (SSU) gene, the complete internal transcribed spacer (ITS) region and a part of the large subunit (LSU) rRNA gene. The PCR products were sequenced on the PacBio platform utilizing Single Molecule Real Time (SMRT) sequencing. Employing this method for selected environmental DNA samples, we were able to describe complex AMF communities consisting of various glomeromycotan lineages. We demonstrate the applicability of this new 2.5 kb approach to provide robust phylogenetic assignment of AMF lineages without known sequences from pure cultures and to consolidate information about AMF taxon distributions coming from three widely used barcoding regions into one integrative dataset.
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Affiliation(s)
- Zuzana Kolaříková
- Institute of Botany of the Czech Academy of Sciences, Průhonice, CZ-252 43, Czech Republic
| | - Renata Slavíková
- Institute of Botany of the Czech Academy of Sciences, Průhonice, CZ-252 43, Czech Republic
| | - Claudia Krüger
- Institute of Botany of the Czech Academy of Sciences, Průhonice, CZ-252 43, Czech Republic
| | - Manuela Krüger
- Institute of Botany of the Czech Academy of Sciences, Průhonice, CZ-252 43, Czech Republic
| | - Petr Kohout
- Institute of Botany of the Czech Academy of Sciences, Průhonice, CZ-252 43, Czech Republic
- Faculty of Science, Charles University in Prague, Prague, CZ-128 44, Czech Republic
- Institute of Microbiology of the Czech Academy of Sciences, Prague, CZ-142 20, Czech Republic
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6
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Alaux PL, Mison C, Senés-Guerrero C, Moreau V, Manssens G, Foucart G, Cranenbrouck S, Declerck S. Diversity and species composition of arbuscular mycorrhizal fungi across maize fields in the southern part of Belgium. MYCORRHIZA 2021; 31:265-272. [PMID: 33211191 DOI: 10.1007/s00572-020-01007-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 11/11/2020] [Indexed: 06/11/2023]
Abstract
Arbuscular mycorrhizal fungi (AMF) are key actors among soil microbial inhabitants, forming beneficial associations with most horticultural plants and crops (e.g., maize). For maize, the world most cultivated cereal, data on AMF species diversity in fields is sparse and even totally nonexistent in the southern part of Belgium where maize represents 8% of the cultivated area. In the present study, 14 maize fields in South Belgium under conventional, conversion, or organic management were analyzed for AMF diversity and species composition using 454 pyrosequencing. A large part (54%) of the 49 AMF species observed were unknown or have not been described in the literature. AMF diversity highly varied among fields, with the number of species ranging between 1 and 37 according to the field. A statistically significant effect of management was measured on AMF diversity, with the highest Hill index values (diversity and richness) under the organic management system compared with conventional management or conversion. Our results suggest a positive effects of organic management on AMF diversity in maize. They also highlight the rather high diversity or richness of AMF and the large portion of sequences not yet ascribed to species, thereby emphasizing a need to intensify AMF identification in cropping systems.
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Affiliation(s)
- Pierre-Louis Alaux
- Earth and Life Institute, Applied Microbiology, Mycology, Université Catholique de Louvain, Croix du Sud 2, box L7.05.06, 1348, Louvain-la-Neuve, Belgium
| | - Coralie Mison
- Earth and Life Institute, Applied Microbiology, Mycology, Université Catholique de Louvain, Croix du Sud 2, box L7.05.06, 1348, Louvain-la-Neuve, Belgium
| | - Carolina Senés-Guerrero
- Escuela de Ingeniería Y Ciencias, Tecnológico de Monterrey, General Ramón Corona 2514, 45138, Zapopan, Jalisco, Mexico
| | - Virginie Moreau
- Earth and Life Institute, Applied Microbiology, Mycology, Université Catholique de Louvain, Croix du Sud 2, box L7.05.06, 1348, Louvain-la-Neuve, Belgium
| | - Gilles Manssens
- Centre Indépendant de Promotion Fourragère (CIPF), Croix du Sud, 2 L7.05.11, Louvain-la-Neuve, Belgium
| | - Guy Foucart
- Centre Indépendant de Promotion Fourragère (CIPF), Croix du Sud, 2 L7.05.11, Louvain-la-Neuve, Belgium
| | - Sylvie Cranenbrouck
- Earth and Life Institute, Applied Microbiology, Mycology, Mycothèque de L'Université Catholique de Louvain (BCCM/MUCL), Université Catholique de Louvain, Croix du Sud 2, box L7.05.06, 1348, Louvain-la-Neuve, Belgium
| | - Stéphane Declerck
- Earth and Life Institute, Applied Microbiology, Mycology, Université Catholique de Louvain, Croix du Sud 2, box L7.05.06, 1348, Louvain-la-Neuve, Belgium.
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Dagher DJ, de la Providencia IE, Pitre FE, St-Arnaud M, Hijri M. Arbuscular Mycorrhizal Fungal Assemblages Significantly Shifted upon Bacterial Inoculation in Non-Contaminated and Petroleum-Contaminated Environments. Microorganisms 2020; 8:E602. [PMID: 32326329 PMCID: PMC7232219 DOI: 10.3390/microorganisms8040602] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 04/13/2020] [Accepted: 04/17/2020] [Indexed: 11/16/2022] Open
Abstract
Arbuscular mycorrhizal fungi (AMF) have been shown to reduce plant stress and improve their health and growth, making them important components of the plant-root associated microbiome, especially in stressful conditions such as petroleum hydrocarbons (PHs) contaminated environments. Purposely manipulating the root-associated AMF assemblages in order to improve plant health and modulate their interaction with the rhizosphere microbes could lead to increased agricultural crop yields and phytoremediation performance by the host plant and its root-associated microbiota. In this study, we tested whether repeated inoculations with a Proteobacteria consortium influenced plant productivity and the AMF assemblages associated with the root and rhizosphere of four plant species growing either in non-contaminated natural soil or in sediments contaminated with petroleum hydrocarbons. A mesocosm experiment was performed in a randomized complete block design in four blocks with two factors: (1) substrate contamination (contaminated or not contaminated), and (2) inoculation (or not) with a bacterial consortium composed of ten isolates of Proteobacteria. Plants were grown in a greenhouse over four months, after which the effect of treatments on plant biomass and petroleum hydrocarbon concentrations in the substrate were determined. MiSeq amplicon sequencing, targeting the 18S rRNA gene, was used to assess AMF community structures in the roots and rhizosphere of plants growing in both contaminated and non-contaminated substrates. We also investigated the contribution of plant identity and biotope (plant roots and rhizospheric soil) in shaping the associated AMF assemblages. Our results showed that while inoculation caused a significant shift in AMF communities, the substrate contamination had a much stronger influence on their structure, followed by the biotope and plant identity to a lesser extent. Moreover, inoculation significantly increased plant biomass production and was associated with a decreased petroleum hydrocarbons dissipation in the contaminated soil. The outcome of this study provides knowledge on the factors influencing the diversity and community structure of AMF associated with indigenous plants following repeated inoculation of a bacterial consortium. It highlights the dominance of soil chemical properties, such as petroleum hydrocarbon presence, over biotic factors and inputs, such as plant species and microbial inoculations, in determining the plant-associated arbuscular mycorrhizal fungi communities.
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Affiliation(s)
- Dimitri J. Dagher
- Institut de Recherche en Biologie Végétale, Université de Montréal and Jardin botanique de Montréal, 4101 Sherbrooke est, Montréal, QC H1X 2B2, Canada; (D.J.D.); (F.E.P.); (M.S.-A.)
| | | | - Frédéric E. Pitre
- Institut de Recherche en Biologie Végétale, Université de Montréal and Jardin botanique de Montréal, 4101 Sherbrooke est, Montréal, QC H1X 2B2, Canada; (D.J.D.); (F.E.P.); (M.S.-A.)
| | - Marc St-Arnaud
- Institut de Recherche en Biologie Végétale, Université de Montréal and Jardin botanique de Montréal, 4101 Sherbrooke est, Montréal, QC H1X 2B2, Canada; (D.J.D.); (F.E.P.); (M.S.-A.)
| | - Mohamed Hijri
- Institut de Recherche en Biologie Végétale, Université de Montréal and Jardin botanique de Montréal, 4101 Sherbrooke est, Montréal, QC H1X 2B2, Canada; (D.J.D.); (F.E.P.); (M.S.-A.)
- AgroBioSciences, University Mohammed VI Polytechnic, Lot 660–Hay Moulay Rachid, Ben Guerir 43150, Morocco
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Malicka M, Magurno F, Piotrowska-Seget Z, Chmura D. Arbuscular mycorrhizal and microbial profiles of an aged phenol-polynuclear aromatic hydrocarbon-contaminated soil. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 192:110299. [PMID: 32058165 DOI: 10.1016/j.ecoenv.2020.110299] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Revised: 02/01/2020] [Accepted: 02/04/2020] [Indexed: 06/10/2023]
Abstract
Arbuscular mycorrhizal fungi (AMF) are ubiquitous, obligatory plant symbionts that have a beneficial influence on plants in contaminated environments. This study focused on evaluating the biomass and biodiversity of the AMF and microbial communities associated with Poa trivialis and Phragmites australis plants sampled at an aged site contaminated with phenol and polynuclear aromatic hydrocarbons (PAHs) and an uncontaminated control site. We analyzed the soil phospholipid fatty acid profile to describe the general structure of microbial communities. PCR-denaturing gradient gel electrophoresis with primers targeting the 18S ribosomal RNA gene was used to characterize the biodiversity of the AMF communities and identify dominant AMF species associated with the host plants in the polluted and control environments. The root mycorrhizal colonization and AMF biomass in the soil were negatively affected by the presence of PAHs and phenol, with no significant differences between the studied plant species, whereas the biodiversity of the AMF communities were influenced by the soil contamination and plant species. Soil contamination was more detrimental to the biodiversity of AMF communities associated with Ph. australis, compared to P. trivialis. Both species favored the development of different AMF species, which might be related to the specific features of their different root systems and soil microbial communities. The contaminated site was dominated by AMF generalists like Funneliformis and Rhizophagus, whereas in the control site Dominikia, Archaeospora, Claroideoglomus, Glomus, and Diversispora were also detected.
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Affiliation(s)
- Monika Malicka
- Institute of Biology Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia, Jagiellońska 28 Street, 40-032, Katowice, Poland.
| | - Franco Magurno
- Institute of Biology Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia, Jagiellońska 28 Street, 40-032, Katowice, Poland
| | - Zofia Piotrowska-Seget
- Institute of Biology Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia, Jagiellońska 28 Street, 40-032, Katowice, Poland
| | - Damian Chmura
- Institute of Environmental Protection and Engineering, University of Bielsko-Biala, 2 Willowa Street, 43-309 Bielsko-Biała, Poland
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9
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Garcés‐Ruiz M, Senés‐Guerrero C, Declerck S, Cranenbrouck S. Community composition of arbuscular mycorrhizal fungi associated with native plants growing in a petroleum-polluted soil of the Amazon region of Ecuador. Microbiologyopen 2019; 8:e00703. [PMID: 30117306 PMCID: PMC6529925 DOI: 10.1002/mbo3.703] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 06/25/2018] [Accepted: 06/28/2018] [Indexed: 11/09/2022] Open
Abstract
Arbuscular mycorrhizal fungi (AMF) are worldwide distributed plant symbionts. However, their occurrence in hydrocarbon-polluted environments is less investigated, although specific communities may be present with possible interest for remediation strategies. Here, we investigated the AMF community composition associated with the roots of diverse plant species naturally recolonizing a weathered crude oil pond in the Amazon region of Ecuador. Next generation 454 GS-Junior sequencing of an 800 bp LSU rRNA gene PCR amplicon was used. PCR amplicons were affiliated to a maximum-likelihood phylogenetic tree computed from 1.5 kb AMF reference sequences. A high throughput phylogenetic annotation approach, using an evolutionary placement algorithm (EPA) allowed the characterization of sequences to the species level. Fifteen species were detected. Acaulospora species were identified as dominant colonizers, with 73% of relative read abundance, Archaeospora (19.6%) and several genera from the Glomeraceae (Rhizophagus, Glomus macrocarpum-like, Sclerocystis, Dominikia and Kamienskia) were also detected. Although, a diverse community belonging to Glomeraceae was revealed, they represented <10% of the relative abundance in the Pond. Seventy five % of the species could not be identified, suggesting possible new species associated with roots of plants under highly hydrocarbon-polluted conditions.
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Affiliation(s)
- Mónica Garcés‐Ruiz
- Laboratory of MycologyEarth and Life InstituteUniversité catholique de LouvainLouvain‐la‐NeuveBelgium
- Laboratorio de micologíaCarrera de Microbiología, Facultad de Ciencia Exactas y NaturalesPontificia Universidad Católica del EcuadorQuitoEcuador
| | | | - Stéphane Declerck
- Laboratory of MycologyEarth and Life InstituteUniversité catholique de LouvainLouvain‐la‐NeuveBelgium
| | - Sylvie Cranenbrouck
- Laboratory of MycologyEarth and Life InstituteUniversité catholique de LouvainLouvain‐la‐NeuveBelgium
- Laboratory of MycologyMycothèque de l'Université catholique de Louvain (MUCL/BCCM)Earth and Life Institute, Université catholique de LouvainLouvain‐la‐NeuveBelgium
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10
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Ali A, Ghani MI, Ding H, Fan Y, Cheng Z, Iqbal M. Co-Amended Synergistic Interactions between Arbuscular Mycorrhizal Fungi and the Organic Substrate-Induced Cucumber Yield and Fruit Quality Associated with the Regulation of the AM-Fungal Community Structure under Anthropogenic Cultivated Soil. Int J Mol Sci 2019; 20:ijms20071539. [PMID: 30934751 PMCID: PMC6479614 DOI: 10.3390/ijms20071539] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/17/2019] [Accepted: 03/21/2019] [Indexed: 11/16/2022] Open
Abstract
Monotonous cucumber double-cropping systems under plastic greenhouse vegetable cultivation (PGVC) previously intensified by long-term anthropogenic activities and manipulative treatments leads to a crop productivity reduction and soil biota disturbances. In this study, the role of the indigenous arbuscular mycorrhizal strain (AM: Glomus versiforme L.) and organic substrate (GS: Garlic stalk) application were assessed for plant microbe interaction and crop productivity feedback in a greenhouse (2016⁻2018) under a cultivated Anthrosol characterized as a replanted degraded soil. We found that repetitively adding AM inocula with organic substrates (GS) improved the cucumber growth and physiology. The useful trait of AM symbiosis with C-amended organic substrates preferentially manifested as increased root colonization, hyphal density proliferation, AM sporulation, root activity, and suppressed Fusarium incidence. The post AM development further prevailed the synergistic interaction, and the co-inoculation effect resulted in an increase in fruit nutrition uptake, seasonal cucumber yield and fruit quality attributes. Illumina MiSeq analysis of the 18S rRNA gene amplicons revealed that the dominant AM genera that are particularly enriched with the Glomus taxon may be important ecological drivers associated with plant productivity and fruit quality characteristics. These results suggest that the AM-organic substrate association might be a pragmatic option for use as an economic and efficient biological resource and as a newly-sustainable plant microbe mediator to enhance the regional ecosystem services and plant productivity of the anthropogenic PGVC of this region.
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Affiliation(s)
- Ahmad Ali
- College of Horticulture, Northwest A&F University, Yangling 712100, China.
| | | | - Haiyan Ding
- College of Horticulture, Northwest A&F University, Yangling 712100, China.
| | - Yang Fan
- College of Horticulture, Northwest A&F University, Yangling 712100, China.
| | - Zhihui Cheng
- College of Horticulture, Northwest A&F University, Yangling 712100, China.
| | - Muhammad Iqbal
- Department of Soil Science & SWC, PMAS-Arid Agriculture University, Rawalpindi-46300, Pakistan.
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11
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Brinkmann N, Schneider D, Sahner J, Ballauff J, Edy N, Barus H, Irawan B, Budi SW, Qaim M, Daniel R, Polle A. Intensive tropical land use massively shifts soil fungal communities. Sci Rep 2019; 9:3403. [PMID: 30833601 PMCID: PMC6399230 DOI: 10.1038/s41598-019-39829-4] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Accepted: 01/30/2019] [Indexed: 12/02/2022] Open
Abstract
Soil fungi are key players in nutrient cycles as decomposers, mutualists and pathogens, but the impact of tropical rain forest transformation into rubber or oil palm plantations on fungal community structures and their ecological functions are unknown. We hypothesized that increasing land use intensity and habitat loss due to the replacement of the hyperdiverse forest flora by nonendemic cash crops drives a drastic loss of diversity of soil fungal taxa and impairs the ecological soil functions. Unexpectedly, rain forest conversion was not associated with strong diversity loss but with massive shifts in soil fungal community composition. Fungal communities clustered according to land use system and loss of plant species. Network analysis revealed characteristic fungal genera significantly associated with different land use systems. Shifts in soil fungal community structure were particularly distinct among different trophic groups, with substantial decreases in symbiotrophic fungi and increases in saprotrophic and pathotrophic fungi in oil palm and rubber plantations in comparison with rain forests. In conclusion, conversion of rain forests and current land use systems restructure soil fungal communities towards enhanced pathogen pressure and, thus, threaten ecosystem health functions.
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Affiliation(s)
- Nicole Brinkmann
- Forest Botany and Tree Physiology, University of Goettingen, Göttingen, Germany.
| | - Dominik Schneider
- Genomic and Applied Microbiology and Göttingen Genomics Laboratory, University of Goettingen, Göttingen, Germany
| | - Josephine Sahner
- Forest Botany and Tree Physiology, University of Goettingen, Göttingen, Germany
| | - Johannes Ballauff
- Forest Botany and Tree Physiology, University of Goettingen, Göttingen, Germany
| | - Nur Edy
- Forest Botany and Tree Physiology, University of Goettingen, Göttingen, Germany
- Department of Agrotechnology, Faculty of Agriculture, Tadulako University, Palu, Indonesia
| | - Henry Barus
- Department of Agrotechnology, Faculty of Agriculture, Tadulako University, Palu, Indonesia
| | - Bambang Irawan
- Department of Forestry, University of Jambi, Jambi, Indonesia
| | - Sri Wilarso Budi
- Department of Silviculture, Faculty of Forestry, Bogor Agriculture University, Bogor, Indonesia
| | - Matin Qaim
- Department of Agricultural Economics and Rural Development, University of Goettingen, Göttingen, Germany
| | - Rolf Daniel
- Genomic and Applied Microbiology and Göttingen Genomics Laboratory, University of Goettingen, Göttingen, Germany
| | - Andrea Polle
- Forest Botany and Tree Physiology, University of Goettingen, Göttingen, Germany
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Calonne-Salmon M, Plouznikoff K, Declerck S. The arbuscular mycorrhizal fungus Rhizophagus irregularis MUCL 41833 increases the phosphorus uptake and biomass of Medicago truncatula, a benzo[a]pyrene-tolerant plant species. MYCORRHIZA 2018; 28:761-771. [PMID: 30121903 DOI: 10.1007/s00572-018-0861-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 08/08/2018] [Indexed: 05/14/2023]
Abstract
The accumulation of phosphorus (P) in plants increases their biomass and resistance/tolerance to organic pollutants. Both characteristics are mandatory for the utilization of plants in phytoremediation. Arbuscular mycorrhizal (AM) fungi improve plant P nutrition, and thus growth. However, only a few studies have focused on the dynamics of inorganic P (Pi) uptake in AM fungal-colonized plants in the presence of organic pollutants. Indeed, most of the results so far were obtained after harvesting the plants, thus by evaluating P concentration and content at a single time point. Here, we investigated the effects of the AM fungus Rhizophagus irregularis MUCL 41833 on the short-term Pi uptake dynamics of Medicago truncatula plants grown in the presence of benzo[a]pyrene (B[a]P), a polyaromatic hydrocarbon (PAH) frequently found in polluted soils. The study was conducted using a non-destructive circulatory semi-hydroponic cultivation system to investigate the short-term Pi depletion from a nutrient solution and as a corollary, the Pi uptake by the AM fungal-colonized and non-colonized plants. The growth, P concentration, and content of plants were also evaluated at harvest. The presence of B[a]P neither impacted the development of the AM fungus in the roots nor the plant growth and Pi uptake, suggesting a marked tolerance of both organisms to B[a]P pollution. A generally higher Pi uptake coupled with a higher accumulation of P in shoots and roots was noticed in AM fungal-colonized plants as compared to the non-colonized controls, irrespective of the presence or absence of B[a]P. Therefore, fungal-colonized plants showed the best growth. Furthermore, the beneficial effect provided by the presence of the AM fungus in roots was similar in presence or absence of B[a]P, thus opening the door for potential utilization in phytomanagement of PAH-polluted soils.
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Affiliation(s)
- Maryline Calonne-Salmon
- Earth and Life Institute, Applied Microbiology, Mycology, Université catholique de Louvain, Croix du Sud, 2 box L7.05.06, 1348, Louvain-la-Neuve, Belgium.
| | - Katia Plouznikoff
- Earth and Life Institute, Applied Microbiology, Mycology, Université catholique de Louvain, Croix du Sud, 2 box L7.05.06, 1348, Louvain-la-Neuve, Belgium
| | - Stéphane Declerck
- Earth and Life Institute, Applied Microbiology, Mycology, Université catholique de Louvain, Croix du Sud, 2 box L7.05.06, 1348, Louvain-la-Neuve, Belgium
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