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Větrovský T, Kolaříková Z, Lepinay C, Awokunle Hollá S, Davison J, Fleyberková A, Gromyko A, Jelínková B, Kolařík M, Krüger M, Lejsková R, Michalčíková L, Michalová T, Moora M, Moravcová A, Moulíková Š, Odriozola I, Öpik M, Pappová M, Piché-Choquette S, Skřivánek J, Vlk L, Zobel M, Baldrian P, Kohout P. GlobalAMFungi: a global database of arbuscular mycorrhizal fungal occurrences from high-throughput sequencing metabarcoding studies. THE NEW PHYTOLOGIST 2023; 240:2151-2163. [PMID: 37781910 DOI: 10.1111/nph.19283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 09/04/2023] [Indexed: 10/03/2023]
Abstract
Arbuscular mycorrhizal (AM) fungi are crucial mutualistic symbionts of the majority of plant species, with essential roles in plant nutrient uptake and stress mitigation. The importance of AM fungi in ecosystems contrasts with our limited understanding of the patterns of AM fungal biogeography and the environmental factors that drive those patterns. This article presents a release of a newly developed global AM fungal dataset (GlobalAMFungi database, https://globalamfungi.com) that aims to reduce this knowledge gap. It contains almost 50 million observations of Glomeromycotinian AM fungal amplicon DNA sequences across almost 8500 samples with geographical locations and additional metadata obtained from 100 original studies. The GlobalAMFungi database is built on sequencing data originating from AM fungal taxon barcoding regions in: i) the small subunit rRNA (SSU) gene; ii) the internal transcribed spacer 2 (ITS2) region; and iii) the large subunit rRNA (LSU) gene. The GlobalAMFungi database is an open source and open access initiative that compiles the most comprehensive atlas of AM fungal distribution. It is designed as a permanent effort that will be continuously updated by its creators and through the collaboration of the scientific community. This study also documented applicability of the dataset to better understand ecology of AM fungal taxa.
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Affiliation(s)
- Tomáš Větrovský
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague, Czechia
| | - Zuzana Kolaříková
- Institute of Botany of the Czech Academy of Sciences, Zámek 1, 252 43, Průhonice, Czechia
| | - Clémentine Lepinay
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague, Czechia
| | - Sandra Awokunle Hollá
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague, Czechia
| | - John Davison
- Institute of Ecology and Earth Sciences, University of Tartu, J. Liivi St 2, 504 09, Tartu, Estonia
| | - Anna Fleyberková
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague, Czechia
| | - Anastasiia Gromyko
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague, Czechia
| | - Barbora Jelínková
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague, Czechia
| | - Miroslav Kolařík
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague, Czechia
| | - Manuela Krüger
- Institute of Botany of the Czech Academy of Sciences, Zámek 1, 252 43, Průhonice, Czechia
| | - Renata Lejsková
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague, Czechia
| | - Lenka Michalčíková
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague, Czechia
| | - Tereza Michalová
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague, Czechia
| | - Mari Moora
- Institute of Ecology and Earth Sciences, University of Tartu, J. Liivi St 2, 504 09, Tartu, Estonia
| | - Andrea Moravcová
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague, Czechia
- Faculty of Science, Charles University, Albertov 6, 128 43, Prague, Czechia
| | - Štěpánka Moulíková
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague, Czechia
| | - Iñaki Odriozola
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague, Czechia
| | - Maarja Öpik
- Institute of Ecology and Earth Sciences, University of Tartu, J. Liivi St 2, 504 09, Tartu, Estonia
| | - Monika Pappová
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague, Czechia
| | - Sarah Piché-Choquette
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague, Czechia
| | - Jakub Skřivánek
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague, Czechia
- Faculty of Science, Charles University, Albertov 6, 128 43, Prague, Czechia
| | - Lukáš Vlk
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague, Czechia
| | - Martin Zobel
- Institute of Ecology and Earth Sciences, University of Tartu, J. Liivi St 2, 504 09, Tartu, Estonia
| | - Petr Baldrian
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague, Czechia
| | - Petr Kohout
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague, Czechia
- Faculty of Science, Charles University, Albertov 6, 128 43, Prague, Czechia
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Nepote Valentin D, Voyron S, Soteras F, Iriarte HJ, Giovannini A, Lumini E, Lugo MA. Modeling geographic distribution of arbuscular mycorrhizal fungi from molecular evidence in soils of Argentinean Puna using a maximum entropy approach. PeerJ 2023; 11:e14651. [PMID: 36650841 PMCID: PMC9840858 DOI: 10.7717/peerj.14651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 12/07/2022] [Indexed: 01/15/2023] Open
Abstract
The biogeographic region of Argentinean Puna mainly extends at elevations higher than 3,000 m within the Andean Plateau and hosts diverse ecological communities highly adapted to extreme aridity and low temperatures. Soils of Puna are typically poorly evolved and geomorphology is shaped by drainage networks, resulting in highly vegetated endorheic basins and hypersaline basins known as salar or salt flats. Local communities rely on soil fertility for agricultural practices and on pastures for livestock rearing. From this perspective, investigating the scarcely explored microbiological diversity of these soils as indicators of ecosystems functioning might help to predict the fragility of these harsh environments. In this study we collected soil samples from 28 points, following a nested design within three different macro-habitats, i.e., Puna grassland, hypersaline salar and family-run crop fields. Total fungi and arbuscular mycorrhizal fungi (AMF) occurrence were analyzed using eDNA sequencing. In addition, the significance of soil salinity and organic matter content as significant predictors of AMF occurrence, was assessed through Generalized Linear Mixed Modeling. We also investigated whether intensive grazing by cattle and lama in Puna grasslands may reduce the presence of AMF in these highly disturbed soils, driving or not major ecological changes, but no consistent results were found, suggesting that more specific experiments and further investigations may address the question more specifically. Finally, to predict the suitability for AMF in the different macro-habitats, Species Distribution Modeling (SDM) was performed within an environmental coherent area comprising both the phytogeographic regions of Puna and Altoandino. We modeled AMF distribution with a maximum entropy approach, including bioclimatic and edaphic predictors and obtaining maps of environmental suitability for AMF within the predicted areas. To assess the impact of farming on AMF occurrence, we set a new series of models excluding the cultivated Chaupi Rodeo samples. Overall, SDM predicted a lower suitability for AMF in hypersaline salar areas, while grassland habitats and a wider temperature seasonality range appear to be factors significantly related to AMF enrichment, suggesting a main role of seasonal dynamics in shaping AMF communities. The highest abundance of AMF was observed in Vicia faba crop fields, while potato fields yielded a very low AMF occurrence. The models excluding the cultivated Chaupi Rodeo samples highlighted that if these cultivated areas had theoretically remained unmanaged habitats of Puna and Altoandino, then large-scale soil features and local bioclimatic constraints would likely support a lower suitability for AMF. Using SDM we evidenced the influence of bioclimatic, edaphic and anthropic predictors in shaping AMF occurrence and highlighted the relevance of considering human activities to accurately predict AMF distribution.
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Affiliation(s)
| | - Samuele Voyron
- Life Sciences and Systems Biology, University of Turin, Torino, Italy,Institute for Sustainable Plant Protection (IPSP), National Research Council (CNR), Torino, Italy
| | - Florencia Soteras
- Laboratorio de Ecología Evolutiva y Biología Floral, Instituto Multidisciplinario de Biología Vegetal (IMBIV), CONICET, FCEFyN, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Hebe Jorgelina Iriarte
- Instituto Multidisciplinario de Investigaciones Biológicas (IMIBIO-CONICET-UNSL), San Luis, Argentina,Micología, Diversidad e Interacciones Fúngicas (MICODIF), Área Ecología, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis (UNSL), San Luis, Argentina
| | - Andrea Giovannini
- Life Sciences and Systems Biology, University of Turin, Torino, Italy
| | - Erica Lumini
- Institute for Sustainable Plant Protection (IPSP), National Research Council (CNR), Torino, Italy
| | - Mónica A. Lugo
- Instituto Multidisciplinario de Investigaciones Biológicas (IMIBIO-CONICET-UNSL), San Luis, Argentina,Micología, Diversidad e Interacciones Fúngicas (MICODIF), Área Ecología, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis (UNSL), San Luis, Argentina
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3
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Ma X, Geng Q, Zhang H, Bian C, Chen HYH, Jiang D, Xu X. Global negative effects of nutrient enrichment on arbuscular mycorrhizal fungi, plant diversity and ecosystem multifunctionality. THE NEW PHYTOLOGIST 2021; 229:2957-2969. [PMID: 33188641 DOI: 10.1111/nph.17077] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 11/06/2020] [Indexed: 06/11/2023]
Abstract
Despite widespread anthropogenic nutrient enrichment, it remains unclear how nutrient enrichment influences plant-arbuscular mycorrhizal fungi (AMF) symbiosis and ecosystem multifunctionality at the global scale. Here, we conducted a meta-analysis to examine the worldwide effects of nutrient enrichment on AMF and plant diversity and ecosystem multifunctionality using data of field experiments from 136 papers. Our analyses showed that nutrient addition simultaneously decreased AMF diversity and abundance belowground and plant diversity aboveground at the global scale. The decreases in AMF diversity and abundance associated with nutrient addition were more pronounced with increasing experimental duration, mean annual temperature (MAT) and mean annual precipitation (MAP). Nutrient addition-induced changes in soil pH and available phosphorus (P) predominantly regulated the responses of AMF diversity and abundance. Furthermore, AMF diversity correlated with ecosystem multifunctionality under nutrient addition worldwide. Our findings identify the negative effects of nutrient enrichment on AMF and plant diversity and suggest that AMF diversity is closely linked with ecosystem function. This study offers an important advancement in our understanding of plant-AMF interactions and their likely responses to ongoing global change.
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Affiliation(s)
- Xiaocui Ma
- Department of Ecology, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China
| | - Qinghong Geng
- Department of Ecology, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China
| | - Huiguang Zhang
- Center for Scientific Research and Monitoring, Wuyishan National Park, Wuyishan, Fujian, 354300, China
| | - Chenyu Bian
- Tiantong National Forest Ecosystem Observation and Research Station, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, 200241, China
| | - Han Y H Chen
- Faculty of Natural Resources Management, Lakehead University, 955 Oliver Rd, Thunder Bay, ON, P7B 5E1, Canada
| | - Dalong Jiang
- Department of Ecology, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China
| | - Xia Xu
- Department of Ecology, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China
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Neuenkamp L, Zobel M, Koorem K, Jairus T, Davison J, Öpik M, Vasar M, Moora M. Light availability and light demand of plants shape the arbuscular mycorrhizal fungal communities in their roots. Ecol Lett 2020; 24:426-437. [PMID: 33319429 DOI: 10.1111/ele.13656] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 11/11/2020] [Accepted: 11/12/2020] [Indexed: 01/01/2023]
Abstract
Plants involved in the arbuscular mycorrhizal (AM) symbiosis trade photosynthetically derived carbon for fungal-provided soil nutrients. However, little is known about how plant light demand and ambient light conditions influence root-associating AM fungal communities. We conducted a manipulative field experiment to test whether plants' shade-tolerance influences their root AM fungal communities in open and shaded grassland sites. We found similar light-dependent shifts in AM fungal community structure for experimental bait plant roots and the surrounding soil. Yet, deviation from the surrounding soil towards lower AM fungal beta-diversity in the roots of shade-intolerant plants in shade suggested preferential carbon allocation to specific AM fungi in conditions where plant-assimilated carbon available to fungi was limited. We conclude that favourable environmental conditions widen the plant biotic niche, as demonstrated here with optimal light availability reducing plants' selectivity for specific AM fungi, and promote compatibility with a larger number of AM fungal taxa.
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Affiliation(s)
- Lena Neuenkamp
- Institute of Ecology and Earth Sciences, University of Tartu, Lai 40, Tartu, 51005, Estonia.,Institute of Plant Sciences, University of Bern, Altenbergrain 21, Bern, 3013, Switzerland
| | - Martin Zobel
- Institute of Ecology and Earth Sciences, University of Tartu, Lai 40, Tartu, 51005, Estonia
| | - Kadri Koorem
- Institute of Ecology and Earth Sciences, University of Tartu, Lai 40, Tartu, 51005, Estonia
| | - Teele Jairus
- Institute of Ecology and Earth Sciences, University of Tartu, Lai 40, Tartu, 51005, Estonia
| | - John Davison
- Institute of Ecology and Earth Sciences, University of Tartu, Lai 40, Tartu, 51005, Estonia
| | - Maarja Öpik
- Institute of Ecology and Earth Sciences, University of Tartu, Lai 40, Tartu, 51005, Estonia
| | - Martti Vasar
- Institute of Ecology and Earth Sciences, University of Tartu, Lai 40, Tartu, 51005, Estonia
| | - Mari Moora
- Institute of Ecology and Earth Sciences, University of Tartu, Lai 40, Tartu, 51005, Estonia
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Aldrich-Wolfe L, Black KL, Hartmann EDL, Shivega WG, Schmaltz LC, McGlynn RD, Johnson PG, Asheim Keller RJ, Vink SN. Taxonomic shifts in arbuscular mycorrhizal fungal communities with shade and soil nitrogen across conventionally managed and organic coffee agroecosystems. MYCORRHIZA 2020; 30:513-527. [PMID: 32500441 DOI: 10.1007/s00572-020-00967-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 05/20/2020] [Indexed: 06/11/2023]
Abstract
The composition of arbuscular mycorrhizal fungal (AMF) communities should reflect not only responses to host and soil environments, but also differences in functional roles and costs vs. benefits among arbuscular mycorrhizal fungi. The coffee agroecosystem allows exploration of the effects of both light and soil fertility on AMF communities, because of the variation in shade and soil nutrients farmers generate through field management. We used high-throughput ITS2 sequencing to characterize the AMF communities of coffee roots in 25 fields in Costa Rica that ranged from organic management with high shade and no chemical fertilizers to conventionally managed fields with minimal shade and high N fertilization, and examined relationships between AMF communities and soil and shade parameters with partial correlations, NMDS, PERMANOVA, and partial least squares analysis. Gigasporaceae and Acaulosporaceae dominated coffee AMF communities in terms of relative abundance and richness, respectively. Gigasporaceae richness was greatest in conventionally managed fields, while Glomeraceae richness was greatest in organic fields. While total AMF richness and root colonization did not differ between organic and conventionally managed fields, AMF community composition did; these differences were correlated with soil nitrate and shade. OTUs differing in relative abundance between conventionally managed and organic fields segregated into four groups: Gigasporaceae associated with high light and nitrate availability, Acaulosporaceae with high light and low nitrate availability, Acaulosporaceae and a single relative of Rhizophagus fasciculatus with shade and low nitrate availability, and Claroideoglomus/Glomus with conventionally managed fields but uncorrelated with shade and soil variables. The association of closely related taxa with similar shade and light availabilities is consistent with phylogenetic trait conservatism in AM fungi.
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Affiliation(s)
- Laura Aldrich-Wolfe
- Department of Biological Sciences, North Dakota State University, Fargo, ND, USA.
| | - Katie L Black
- Biology Department, Concordia College, Moorhead, MN, USA
| | | | - W Gaya Shivega
- Biology Department, Concordia College, Moorhead, MN, USA
| | | | | | | | | | - Stefanie N Vink
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, the Netherlands
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Sudová R, Kohout P, Rydlová J, Čtvrtlíková M, Suda J, Voříšková J, Kolaříková Z. Diverse fungal communities associated with the roots of isoetid plants are structured by host plant identity. FUNGAL ECOL 2020. [DOI: 10.1016/j.funeco.2020.100914] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Liu J, Zhang J, Li D, Xu C, Xiang X. Differential responses of arbuscular mycorrhizal fungal communities to mineral and organic fertilization. Microbiologyopen 2019; 9:e00920. [PMID: 31397116 PMCID: PMC6957387 DOI: 10.1002/mbo3.920] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 07/16/2019] [Accepted: 07/18/2019] [Indexed: 11/16/2022] Open
Abstract
Agricultural fertilization is used extensively to increase soil fertility and maximize crop yield. Despite numerous studies on how fertilization influences plant and bacterial communities, little is known about the roles of long‐term application of different fertilizers in shaping arbuscular mycorrhizal fungal (AMF) community structures in a comparative manner. The response of AMF community to 28 years of chemical and organic fertilization was investigated using the Illumina Mi‐Seq platform. Soil AMF community composition showed significant and differential responses to long‐term fertilization. Changes in available phosphorus (AP) content were the primary driver shaping AMF community composition. Chemical fertilization significantly decreased AMF alpha‐diversity, whereas the alpha‐diversity remained equally high in organic fertilization treatment as in the control. In addition, soil AMF alpha‐diversity was negatively and positively correlated with elevated soil nutrient level following chemical and organic fertilization, respectively. Plants could directly acquire sufficient nutrients without their AMF partners after chemical fertilization, while plants might rely on AMF to facilitate the transformation of organic matter following organic fertilization, indicating that chemical fertilization might reduce the reliance of plants on AMF symbioses while organic fertilization strengthened the symbiotic relationship between plants and their AMF partners in agricultural ecosystems. This study demonstrated that AMF communities responded differently to long‐term chemical and organic fertilization, indicating that organic fertilization might activate belowground AMF function to maintain soil nutrients and benefit the sustainable development of agriculture.
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Affiliation(s)
- Jia Liu
- Soil and Fertilizer & Resources and Environment Institute, Jiangxi Academy of Agricultural Sciences, Nanchang, China
| | - Jie Zhang
- College of Water Conservancy and Ecological Engineering, Nanchang Institute of Technology, Nanchang, China
| | - Daming Li
- Jiangxi Institute of Red Soil, Jinxian, China
| | - Changxu Xu
- Soil and Fertilizer & Resources and Environment Institute, Jiangxi Academy of Agricultural Sciences, Nanchang, China
| | - Xingjia Xiang
- Anhui Province Key Laboratory of Wetland Ecological Protection and Restoration, School of Resources and Environmental Engineering, Anhui University, Hefei, China
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Sudová R, Kohout P, Kolaříková Z, Rydlová J, Voříšková J, Suda J, Španiel S, Müller-Schärer H, Mráz P. Sympatric diploid and tetraploid cytotypes of Centaurea stoebe s.l. do not differ in arbuscular mycorrhizal communities and mycorrhizal growth response. AMERICAN JOURNAL OF BOTANY 2018; 105:1995-2007. [PMID: 30552673 DOI: 10.1002/ajb2.1206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 08/28/2018] [Indexed: 06/09/2023]
Abstract
PREMISE OF THE STUDY Genome duplication is associated with multiple changes at different levels, including interactions with pollinators and herbivores. Yet little is known whether polyploidy may also shape belowground interactions. METHODS To elucidate potential ploidy-specific interactions with arbuscular mycorrhizal fungi (AMF), we compared mycorrhizal colonization and assembly of AMF communities in roots of diploid and tetraploid Centaurea stoebe s.l. (Asteraceae) co-occurring in a Central European population. In a follow-up greenhouse experiment, we tested inter-cytotype differences in mycorrhizal growth response by combining ploidy, substrate, and inoculation with native AMF in a full-factorial design. KEY RESULTS All sampled plants were highly colonized by AMF, with the Glomeraceae predominating. AMF-community composition revealed by 454-pyrosequencing reflected the spatial distribution of the hosts, but not their ploidy level or soil characteristics. In the greenhouse experiment, the tetraploids produced more shoot biomass than the diploids did when grown in a more fertile substrate, while no inter-cytotype differences were found in a less fertile substrate. AMF inoculation significantly reduced plant growth and improved P uptake, but its effects did not differ between the cytotypes. CONCLUSIONS The results do not support our hypotheses that the cytotype structure in a mixed-ploidy population of C. stoebe is mirrored in AMF-community composition and that ploidy-specific fungal communities contribute to cytotype co-existence. Causes and implications of the observed negative growth response to AMF are discussed.
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Affiliation(s)
- Radka Sudová
- Institute of Botany, The Czech Academy of Sciences, CZ-252 43, Průhonice, Czech Republic
| | - Petr Kohout
- Institute of Botany, The Czech Academy of Sciences, CZ-252 43, Průhonice, Czech Republic
- Institute of Microbiology, The Czech Academy of Sciences, Vídeňská 1083, CZ-142 20, Prague, Czech Republic
- Department of Experimental Plant Biology, Faculty of Science, Charles University, CZ-128 44, Prague, Czech Republic
| | - Zuzana Kolaříková
- Institute of Botany, The Czech Academy of Sciences, CZ-252 43, Průhonice, Czech Republic
| | - Jana Rydlová
- Institute of Botany, The Czech Academy of Sciences, CZ-252 43, Průhonice, Czech Republic
| | - Jana Voříšková
- Institute of Microbiology, The Czech Academy of Sciences, Vídeňská 1083, CZ-142 20, Prague, Czech Republic
- Ecology Department, Climate and Ecosystem Sciences, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA
| | - Jan Suda
- Institute of Botany, The Czech Academy of Sciences, CZ-252 43, Průhonice, Czech Republic
- Department of Botany, Faculty of Science, Charles University, Benátská 2, CZ-128 01, Prague, Czech Republic
| | - Stanislav Španiel
- Department of Botany, Faculty of Science, Charles University, Benátská 2, CZ-128 01, Prague, Czech Republic
- Institute of Botany, Plant Science and Biodiversity Centre, Slovak Academy of Sciences, Dúbravská cesta 9, SK-845 23, Bratislava, Slovakia
| | - Heinz Müller-Schärer
- Department of Biology, Ecology and Evolution, University of Fribourg, Chemin du Musée 10, CH-1700, Fribourg, Switzerland
| | - Patrik Mráz
- Department of Botany, Faculty of Science, Charles University, Benátská 2, CZ-128 01, Prague, Czech Republic
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Campos C, Carvalho M, Brígido C, Goss MJ, Nobre T. Symbiosis Specificity of the Preceding Host Plant Can Dominate but Not Obliterate the Association Between Wheat and Its Arbuscular Mycorrhizal Fungal Partners. Front Microbiol 2018; 9:2920. [PMID: 30542338 PMCID: PMC6277769 DOI: 10.3389/fmicb.2018.02920] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 11/14/2018] [Indexed: 12/21/2022] Open
Abstract
The symbiosis established between arbuscular mycorrhizal fungi (AMF) and roots of most land plants plays a key role in plant nutrient acquisition and alleviation of environmental stresses. Despite the ubiquity of the symbiosis, AMF and host species display significant specificity in their interactions. To clarify preferential associations between wheat (Triticum aestivum) and AMF, we characterized root AMF communities in the transition from two first host species, ryegrass (Lolium rigidum) and yellow-serradella (Ornithopus compressus), grown separately or together, to a second host (wheat), by sequencing the large subunit ribosomal DNA (LSU rDNA) gene. The response of AMF communities in wheat to prior soil disturbance – and consequently of the mycelial network [intact extraradical mycelium (ERM) vs. disrupted mycelium] established with either of the first hosts – was also investigated. Since the outcome of a specific host–symbiont interaction depends on the molecular responses of the host plant upon microbial colonization, we studied the expression of six key symbiosis-related genes in wheat roots. AMF communities on L. rigidum and O. compressus roots were clearly distinct. Within an undisturbed ERM, wheat AMF communities were similar to that of previous host, and O. compressus-wheat-AMF interactions supported a greater growth of wheat than L. rigidum-wheat-AMF interactions. This effect declined when ERM was disrupted, but generated a greater activation of symbiotic genes in wheat, indicating that plant symbiotic program depends on some extent on the colonizing symbiont propagule type. When a mixture of L. rigidum and O. compressus was planted, the wheat colonization pattern resembled that of O. compressus, although this was not reflected in a greater growth. These results show a lasting effect of previous hosts in shaping wheat AMF communities through an efficient use of the established ERM, although not completely obliterating host–symbiont specificity.
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Affiliation(s)
- Catarina Campos
- Instituto de Ciências Agrárias e Ambientais Mediterrânicas, Instituto de Investigação e Formação Avançada, Universidade de Évora, Évora, Portugal
| | - Mário Carvalho
- Instituto de Ciências Agrárias e Ambientais Mediterrânicas, Instituto de Investigação e Formação Avançada, Universidade de Évora, Évora, Portugal
| | - Clarisse Brígido
- Instituto de Ciências Agrárias e Ambientais Mediterrânicas, Instituto de Investigação e Formação Avançada, Universidade de Évora, Évora, Portugal
| | - Michael J Goss
- School of Environmental Sciences, University of Guelph, Guelph, ON, Canada
| | - Tânia Nobre
- Instituto de Ciências Agrárias e Ambientais Mediterrânicas, Instituto de Investigação e Formação Avançada, Universidade de Évora, Évora, Portugal
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10
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Sheldrake M, Rosenstock NP, Mangan S, Revillini D, Sayer EJ, Olsson PA, Verbruggen E, Tanner EVJ, Turner BL, Wright SJ. Responses of arbuscular mycorrhizal fungi to long-term inorganic and organic nutrient addition in a lowland tropical forest. THE ISME JOURNAL 2018; 12:2433-2445. [PMID: 29899509 PMCID: PMC6155082 DOI: 10.1038/s41396-018-0189-7] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2017] [Revised: 03/13/2018] [Accepted: 03/18/2018] [Indexed: 11/09/2022]
Abstract
Improved understanding of the nutritional ecology of arbuscular mycorrhizal (AM) fungi is important in understanding how tropical forests maintain high productivity on low-fertility soils. Relatively little is known about how AM fungi will respond to changes in nutrient inputs in tropical forests, which hampers our ability to assess how forest productivity will be influenced by anthropogenic change. Here we assessed the influence of long-term inorganic and organic nutrient additions and nutrient depletion on AM fungi, using two adjacent experiments in a lowland tropical forest in Panama. We characterised AM fungal communities in soil and roots using 454-pyrosequencing, and quantified AM fungal abundance using microscopy and a lipid biomarker. Phosphorus and nitrogen addition reduced the abundance of AM fungi to a similar extent, but affected community composition in different ways. Nutrient depletion (removal of leaf litter) had a pronounced effect on AM fungal community composition, affecting nearly as many OTUs as phosphorus addition. The addition of nutrients in organic form (leaf litter) had little effect on any AM fungal parameter. Soil AM fungal communities responded more strongly to changes in nutrient availability than communities in roots. This suggests that the 'dual niches' of AM fungi in soil versus roots are structured to different degrees by abiotic environmental filters, and biotic filters imposed by the plant host. Our findings indicate that AM fungal communities are fine-tuned to nutrient regimes, and support future studies aiming to link AM fungal community dynamics with ecosystem function.
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Affiliation(s)
- Merlin Sheldrake
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge, CB2 3EA, UK.
- Smithsonian Tropical Research Institute, Apartado 0843-03092, Balboa, Ancón, Republic of Panama.
| | | | - Scott Mangan
- Smithsonian Tropical Research Institute, Apartado 0843-03092, Balboa, Ancón, Republic of Panama
- Department of Biology, Washington University in St. Louis, St. Louis, MO, 63130, USA
| | - Daniel Revillini
- Department of Biological Sciences, Northern Arizona University, PO BOX 5640, Flagstaff, AZ, 86011, USA
| | - Emma J Sayer
- Smithsonian Tropical Research Institute, Apartado 0843-03092, Balboa, Ancón, Republic of Panama
- Lancaster Environment Centre, Lancaster University, Lancaster, LA1 4YQ, UK
| | | | - Erik Verbruggen
- Research Group Plants and Ecosystems (PLECO), Department of Biology, University of Antwerp, Wilrijk, Belgium
| | - Edmund V J Tanner
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge, CB2 3EA, UK
| | - Benjamin L Turner
- Smithsonian Tropical Research Institute, Apartado 0843-03092, Balboa, Ancón, Republic of Panama
| | - S Joseph Wright
- Smithsonian Tropical Research Institute, Apartado 0843-03092, Balboa, Ancón, Republic of Panama
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11
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Crossay T, Cilia A, Cavaloc Y, Amir H, Redecker D. Four new species of arbuscular mycorrhizal fungi (Glomeromycota) associated with endemic plants from ultramafic soils of New Caledonia. Mycol Prog 2018. [DOI: 10.1007/s11557-018-1386-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Knoblochová T, Kohout P, Püschel D, Doubková P, Frouz J, Cajthaml T, Kukla J, Vosátka M, Rydlová J. Asymmetric response of root-associated fungal communities of an arbuscular mycorrhizal grass and an ectomycorrhizal tree to their coexistence in primary succession. MYCORRHIZA 2017; 27:775-789. [PMID: 28752181 DOI: 10.1007/s00572-017-0792-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Accepted: 07/20/2017] [Indexed: 06/07/2023]
Abstract
The arbuscular mycorrhizal (AM) grass Calamagrostis epigejos and predominantly ectomycorrhizal (EcM) tree Salix caprea co-occur at post-mining sites spontaneously colonized by vegetation. During succession, AM herbaceous vegetation is replaced by predominantly EcM woody species. To better understand the interaction of AM and EcM plants during vegetation transition, we studied the reciprocal effects of these species' coexistence on their root-associated fungi (RAF). We collected root and soil samples from three different microenvironments: stand of C. epigejos, under S. caprea canopy, and contact zone where roots of the two species interacted. RAF communities and mycorrhizal colonization were determined in sampled roots, and the soil was tested for EcM and AM inoculation potentials. Although the microenvironment significantly affected composition of the RAF communities in both plant species, the effect was greater in the case of C. epigejos RAF communities than in that of S. caprea RAF communities. The presence of S. caprea also significantly decreased AM fungal abundance in soil as well as AM colonization and richness of AM fungi in C. epigejos roots. Changes observed in the abundance and community composition of AM fungi might constitute an important factor in transition from AM-dominated to EcM-dominated vegetation during succession.
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Affiliation(s)
- Tereza Knoblochová
- Institute of Botany, Czech Academy of Sciences, Zámek 1, 252 43, Průhonice, Czech Republic
- Department of Experimental Plant Biology, Faculty of Science, Charles University, Viničná 5, 128 44, Prague, Czech Republic
| | - Petr Kohout
- Institute of Botany, Czech Academy of Sciences, Zámek 1, 252 43, Průhonice, Czech Republic
- Department of Experimental Plant Biology, Faculty of Science, Charles University, Viničná 5, 128 44, Prague, Czech Republic
- Institute of Microbiology, Czech Academy of Science, Vídeňská 1083, 142 20, Prague, Czech Republic
| | - David Püschel
- Institute of Botany, Czech Academy of Sciences, Zámek 1, 252 43, Průhonice, Czech Republic
| | - Pavla Doubková
- Institute of Botany, Czech Academy of Sciences, Zámek 1, 252 43, Průhonice, Czech Republic
| | - Jan Frouz
- Faculty of Science, Institute for Environmental Studies, Charles University, Benátská 2, 128 44, Prague, Czech Republic
| | - Tomáš Cajthaml
- Faculty of Science, Institute for Environmental Studies, Charles University, Benátská 2, 128 44, Prague, Czech Republic
| | - Jaroslav Kukla
- Faculty of Science, Institute for Environmental Studies, Charles University, Benátská 2, 128 44, Prague, Czech Republic
| | - Miroslav Vosátka
- Institute of Botany, Czech Academy of Sciences, Zámek 1, 252 43, Průhonice, Czech Republic
| | - Jana Rydlová
- Institute of Botany, Czech Academy of Sciences, Zámek 1, 252 43, Průhonice, Czech Republic.
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13
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Krüger C, Kohout P, Janoušková M, Püschel D, Frouz J, Rydlová J. Plant Communities Rather than Soil Properties Structure Arbuscular Mycorrhizal Fungal Communities along Primary Succession on a Mine Spoil. Front Microbiol 2017; 8:719. [PMID: 28473828 PMCID: PMC5397529 DOI: 10.3389/fmicb.2017.00719] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 04/06/2017] [Indexed: 02/01/2023] Open
Abstract
Arbuscular mycorrhizal fungal (AMF) community assembly during primary succession has so far received little attention. It remains therefore unclear, which of the factors, driving AMF community composition, are important during ecosystem development. We addressed this question on a large spoil heap, which provides a mosaic of sites in different successional stages under different managements. We selected 24 sites of c. 12, 20, 30, or 50 years in age, including sites with spontaneously developing vegetation and sites reclaimed by alder plantations. On each site, we sampled twice a year roots of the perennial rhizomatous grass Calamagrostis epigejos (Poaceae) to determine AMF root colonization and diversity (using 454-sequencing), determined the soil chemical properties and composition of plant communities. AMF taxa richness was unaffected by site age, but AMF composition variation increased along the chronosequences. AMF communities were unaffected by soil chemistry, but related to the composition of neighboring plant communities of the sampled C. epigejos plants. In contrast, the plant communities of the sites were more distinctively structured than the AMF communities along the four successional stages. We conclude that AMF and plant community successions respond to different factors. AMF communities seem to be influenced by biotic rather than by abiotic factors and to diverge with successional age.
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Affiliation(s)
- Claudia Krüger
- Institute of Botany, Academy of Sciences of the Czech RepublicPrůhonice, Czechia
| | - Petr Kohout
- Institute of Botany, Academy of Sciences of the Czech RepublicPrůhonice, Czechia.,Faculty of Science, Charles UniversityPrague, Czechia.,Institute of Microbiology, Academy of Sciences of the Czech RepublicPrague, Czechia
| | - Martina Janoušková
- Institute of Botany, Academy of Sciences of the Czech RepublicPrůhonice, Czechia
| | - David Püschel
- Institute of Botany, Academy of Sciences of the Czech RepublicPrůhonice, Czechia
| | - Jan Frouz
- Faculty of Science, Charles UniversityPrague, Czechia
| | - Jana Rydlová
- Institute of Botany, Academy of Sciences of the Czech RepublicPrůhonice, Czechia
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14
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Kolton M, Graber ER, Tsehansky L, Elad Y, Cytryn E. Biochar-stimulated plant performance is strongly linked to microbial diversity and metabolic potential in the rhizosphere. THE NEW PHYTOLOGIST 2017; 213:1393-1404. [PMID: 27780299 DOI: 10.1111/nph.14253] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Accepted: 09/01/2016] [Indexed: 05/03/2023]
Abstract
The 'biochar effect' depicts a phenomenon in which biochar soil amendment enhances plant performance by promoting growth and suppressing disease. Although this phenomenon has been observed in numerous studies, the mode of action that explains it is currently unknown. In order to elucidate mechanisms responsible for the 'biochar effect', we comprehensively monitored tomato plant development and resistance to the foliar fungal pathogen Botrytis cinerea, in biochar-amended and nonamended soils using native biochar and washed biochar, striped of labile chemical constituents. We concomitantly assessed bacterial community succession in the rhizosphere by high-throughput 16S rRNA gene amplicon sequencing and carbon-source utilization profiling. Biochar had little impact on plant physiological parameters. However, both native and washed biochar treatments were characterized by higher rhizosphere bacterial diversity and enhanced carbohydrate and phenolic compound utilization rates coupled to stimulation of bacteria known to degrade phenolic compounds. This study indicates that the 'biochar effect' is at least partially dictated by increased diversity and changes in metabolic potential in the rhizosphere microbiome, which is primarily triggered by the recalcitrant carbon backbone of the biochar and tightly bound compounds. It corresponds to the growing consensus that soil amendments which enhance microbial diversity have important benefits to ecosystem functioning.
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Affiliation(s)
- Max Kolton
- Institute of Soil, Water and Environmental Sciences, The Volcani Center, Agricultural Research Organization, PO Box 15159, Rishon Lezion, 7528809, Israel
- Department of Plant Pathology and Microbiology, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, 76100, Israel
| | - Ellen R Graber
- Institute of Soil, Water and Environmental Sciences, The Volcani Center, Agricultural Research Organization, PO Box 15159, Rishon Lezion, 7528809, Israel
| | - Ludmila Tsehansky
- Institute of Soil, Water and Environmental Sciences, The Volcani Center, Agricultural Research Organization, PO Box 15159, Rishon Lezion, 7528809, Israel
| | - Yigal Elad
- Department of Plant Pathology and Weed Research, The Volcani Center, Agricultural Research Organization, PO Box 15159, Rishon Lezion, 7528809, Israel
| | - Eddie Cytryn
- Institute of Soil, Water and Environmental Sciences, The Volcani Center, Agricultural Research Organization, PO Box 15159, Rishon Lezion, 7528809, Israel
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15
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Veresoglou SD, Wulf M, Rillig MC. Facilitation between woody and herbaceous plants that associate with arbuscular mycorrhizal fungi in temperate European forests. Ecol Evol 2017; 7:1181-1189. [PMID: 28303188 PMCID: PMC5306016 DOI: 10.1002/ece3.2757] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 12/20/2016] [Accepted: 12/29/2016] [Indexed: 01/25/2023] Open
Abstract
In late-successional environments, low in available nutrient such as the forest understory, herbaceous plant individuals depend strongly on their mycorrhizal associates for survival. We tested whether in temperate European forests arbuscular mycorrhizal (AM) woody plants might facilitate the establishment of AM herbaceous plants in agreement with the mycorrhizal mediation hypothesis. We used a dataset spanning over 400 vegetation plots in the Weser-Elbe region (northwest Germany). Mycorrhizal status information was obtained from published resources, and Ellenberg indicator values were used to infer environmental data. We carried out tests for both relative richness and relative abundance of herbaceous plants. We found that the subset of herbaceous individuals that associated with AM profited when there was a high cover of AM woody plants. These relationships were retained when we accounted for environmental filtering effects using path analysis. Our findings build on the existing literature highlighting the prominent role of mycorrhiza as a coexistence mechanism in plant communities. From a nature conservation point of view, it may be possible to promote functional diversity in the forest understory through introducing AM woody trees in stands when absent.
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Affiliation(s)
- Stavros D. Veresoglou
- Institut für BiologieFreie Universität BerlinBerlinGermany
- Berlin‐Brandenburg Institute of Advanced Biodiversity ResearchBerlinGermany
| | - Monika Wulf
- Institute of Land Use SystemsLeibniz Centre for Agricultural Landscape Research (ZALF)MünchebergGermany
| | - Matthias C. Rillig
- Institut für BiologieFreie Universität BerlinBerlinGermany
- Berlin‐Brandenburg Institute of Advanced Biodiversity ResearchBerlinGermany
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16
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Nestedness in Arbuscular Mycorrhizal Fungal Communities along Soil pH Gradients in Early Primary Succession: Acid-Tolerant Fungi Are pH Generalists. PLoS One 2016; 11:e0165035. [PMID: 27755574 PMCID: PMC5068792 DOI: 10.1371/journal.pone.0165035] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Accepted: 10/05/2016] [Indexed: 12/20/2022] Open
Abstract
Soil acidity is a major constraint on plant productivity. Arbuscular mycorrhizal (AM) fungi support plant colonization in acidic soil, but soil acidity also constrains fungal growth and diversity. Fungi in extreme environments generally evolve towards specialists, suggesting that AM fungi in acidic soil are acidic-soil specialists. In our previous surveys, however, some AM fungi detected in strongly acidic soils could also be detected in a soil with moderate pH, which raised a hypothesis that the fungi in acidic soils are pH generalists. To test the hypothesis, we conducted a pH-manipulation experiment and also analyzed AM fungal distribution along a pH gradient in the field using a synthesized dataset of the previous and recent surveys. Rhizosphere soils of the generalist plant Miscanthus sinensis were collected both from a neutral soil and an acidic soil, and M. sinensis seedlings were grown at three different pH. For the analysis of field communities, rhizosphere soils of M. sinensis were collected from six field sites across Japan, which covered a soil pH range of 3.0-7.4, and subjected to soil trap culture. AM fungal community compositions were determined based on LSU rDNA sequences. In the pH-manipulation experiment the acidification of medium had a significant impact on the compositions of the community from the neutral soil, but the neutralization of the medium had no effect on those of the community from the acidic soil. Furthermore, the communities in lower -pH soils were subsets of (nested in) those in higher-pH soils. In the field communities a significant nestedness pattern was observed along the pH gradient. These observations suggest that the fungi in strongly acidic soils are pH generalists that occur not only in acidic soil but also in wide ranges of soil pH. Nestedness in AM fungal community along pH gradients may have important implications for plant community resilience and early primary succession after disturbance in acidic soils.
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17
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Johansen RB, Johnston P, Mieczkowski P, Perry GL, Robeson MS, Burns BR, Vilgalys R. A native and an invasive dune grass share similar, patchily distributed, root-associated fungal communities. FUNGAL ECOL 2016. [DOI: 10.1016/j.funeco.2016.08.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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18
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Bordez L, Jourand P, Ducousso M, Carriconde F, Cavaloc Y, Santini S, Claverie JM, Wantiez L, Leveau A, Amir H. Distribution patterns of microbial communities in ultramafic landscape: a metagenetic approach highlights the strong relationships between diversity and environmental traits. Mol Ecol 2016; 25:2258-72. [PMID: 26994404 DOI: 10.1111/mec.13621] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Revised: 02/25/2016] [Accepted: 03/15/2016] [Indexed: 11/30/2022]
Abstract
Microbial species richness and assemblages across ultramafic ecosystems were investigated to assess the relationship between their distributional patterns and environmental traits. The structure of microorganism communities in the Koniambo massif, New Caledonia, was investigated using a metagenetic approach correlated with edaphic and floristic factors. Vegetation cover and soil properties significantly shaped the large phylogenetic distribution of operational taxonomic unit within microbial populations, with a mean per habitat of 3.477 (±317) for bacteria and 712 (±43) for fungi. Using variance partitioning, we showed that the effect of aboveground vegetation was the most significant descriptor for both bacterial and fungal communities. The floristic significant predictors explained 43% of the variation for both the bacterial and fungal community structures, while the edaphic significant predictors explained only 32% and 31% of these variations, respectively. These results confirm the previous hypothesis that the distribution of microorganisms was more structured by the vegetation cover rather than the edaphic characteristics and that microbial diversity is not limited in ultramafic ecosystems.
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Affiliation(s)
- L Bordez
- Laboratoire Insulaire du Vivant et de l'Environnement (LIVE), Université de la Nouvelle-Calédonie (UNC), BP R4, Avenue James Cook, 98851, Nouméa Cedex, Nouvelle-Calédonie.,Koniambo Nickel SAS (KNS), BP 696, 98860, Koné, Nouvelle-Calédonie.,IRD, Laboratoire des Symbioses Tropicales et Méditerranéennes (LSTM, UMR040), TA A-82/J, 34398, Montpellier cedex 5, France.,Institut Agronomique néo-Calédonien (IAC), BPA5, 98848, Nouméa, Nouvelle-Calédonie
| | - P Jourand
- IRD, Laboratoire des Symbioses Tropicales et Méditerranéennes (LSTM, UMR040), TA A-82/J, 34398, Montpellier cedex 5, France
| | - M Ducousso
- CIRAD, Laboratoire des Symbioses Tropicales et Méditerranéennes (LSTM, UMR082), TA A-82/J, 34398, Montpellier cedex 5, France
| | - F Carriconde
- Institut Agronomique néo-Calédonien (IAC), BPA5, 98848, Nouméa, Nouvelle-Calédonie
| | - Y Cavaloc
- Laboratoire Insulaire du Vivant et de l'Environnement (LIVE), Université de la Nouvelle-Calédonie (UNC), BP R4, Avenue James Cook, 98851, Nouméa Cedex, Nouvelle-Calédonie
| | - S Santini
- Laboratoire Information Génomique et Structurale (IGS), UMR7256 CNRS, Aix-Marseille Université, 13288, Marseille cedex 09, France
| | - J M Claverie
- Laboratoire Information Génomique et Structurale (IGS), UMR7256 CNRS, Aix-Marseille Université, 13288, Marseille cedex 09, France
| | - L Wantiez
- Laboratoire Insulaire du Vivant et de l'Environnement (LIVE), Université de la Nouvelle-Calédonie (UNC), BP R4, Avenue James Cook, 98851, Nouméa Cedex, Nouvelle-Calédonie
| | - A Leveau
- Koniambo Nickel SAS (KNS), BP 696, 98860, Koné, Nouvelle-Calédonie
| | - H Amir
- Laboratoire Insulaire du Vivant et de l'Environnement (LIVE), Université de la Nouvelle-Calédonie (UNC), BP R4, Avenue James Cook, 98851, Nouméa Cedex, Nouvelle-Calédonie
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