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Gao C, Bezemer TM, van Bodegom PM, Baldrian P, Kohout P, Mancinelli R, van der Hagen H, Soudzilovskaia NA. Fungal communities are passengers in community development of dune ecosystems, while bacteria are not. Ecology 2024; 105:e4312. [PMID: 38666421 DOI: 10.1002/ecy.4312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 03/14/2024] [Indexed: 06/04/2024]
Abstract
An increasing number of studies of above-belowground interactions provide a fundamental basis for our understanding of the coexistence between plant and soil communities. However, we lack empirical evidence to understand the directionality of drivers of plant and soil communities under natural conditions: 'Are soil microorganisms driving plant community functioning or do they adapt to the plant community?' In a field experiment in an early successional dune ecosystem, we manipulated soil communities by adding living (i.e., natural microbial communities) and sterile soil inocula, originating from natural ecosystems, and examined the annual responses of soil and plant communities. The experimental manipulations had a persistent effect on the soil microbial community with divergent impacts for living and sterile soil inocula. The plant community was also affected by soil inoculation, but there was no difference between the impacts of living and sterile inocula. We also observed an increasing convergence of plant and soil microbial composition over time. Our results show that alterations in soil abiotic and biotic conditions have long-term effects on the composition of both plant and soil microbial communities. Importantly, our study provides direct evidence that soil microorganisms are not "drivers" of plant community dynamics. We found that soil fungi and bacteria manifest different community assemblies in response to treatments. Soil fungi act as "passengers," that is, soil microorganisms reflect plant community dynamics but do not alter it, whereas soil bacteria are neither "drivers" nor "passengers" of plant community dynamics in early successional ecosystems. These results are critical for understanding the community assembly of plant and soil microbial communities under natural conditions and are directly relevant for ecosystem management and restoration.
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Affiliation(s)
- Chenguang Gao
- Environmental Biology, Institute of Environmental Sciences, Leiden University, Leiden, The Netherlands
| | - T Martijn Bezemer
- Institute of Biology, Above-Belowground Interactions Group, Leiden University, Leiden, The Netherlands
- Department of Terrestrial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, The Netherlands
| | - Peter M van Bodegom
- Environmental Biology, Institute of Environmental Sciences, Leiden University, Leiden, The Netherlands
| | - Petr Baldrian
- Laboratory of Environmental Microbiology, Institute of Microbiology of the Czech Academy of Sciences, Praha, Czech Republic
| | - Petr Kohout
- Laboratory of Environmental Microbiology, Institute of Microbiology of the Czech Academy of Sciences, Praha, Czech Republic
| | - Riccardo Mancinelli
- Environmental Biology, Institute of Environmental Sciences, Leiden University, Leiden, The Netherlands
| | | | - Nadejda A Soudzilovskaia
- Environmental Biology, Institute of Environmental Sciences, Leiden University, Leiden, The Netherlands
- Center for Environmental Sciences, Hasselt University, Hasselt, Belgium
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2
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Singavarapu B, Ul Haq H, Darnstaedt F, Nawaz A, Beugnon R, Cesarz S, Eisenhauer N, Du J, Xue K, Wang Y, Bruelheide H, Wubet T. Influence of tree mycorrhizal type, tree species identity, and diversity on forest root-associated mycobiomes. THE NEW PHYTOLOGIST 2024; 242:1691-1703. [PMID: 38659111 DOI: 10.1111/nph.19722] [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: 07/14/2023] [Accepted: 02/20/2024] [Indexed: 04/26/2024]
Abstract
Understanding the complex interactions between trees and fungi is crucial for forest ecosystem management, yet the influence of tree mycorrhizal types, species identity, and diversity on tree-tree interactions and their root-associated fungal communities remains poorly understood. Our study addresses this gap by investigating root-associated fungal communities of different arbuscular mycorrhizal (AM) and ectomycorrhizal (EcM) tree species pairs (TSPs) in a subtropical tree diversity experiment, spanning monospecific, two-species, and multi-species mixtures, utilizing Illumina sequencing of the ITS2 region. The study reveals that tree mycorrhizal type significantly impacts the alpha diversity of root-associated fungi in monospecific stands. Meanwhile, tree species identity's influence is modulated by overall tree diversity. Tree-related variables and spatial distance emerged as major drivers of variations in fungal community composition. Notably, in multi-species mixtures, compositional differences between root fungal communities of AM and EcM trees diminish, indicating a convergence of fungal communities irrespective of mycorrhizal type. Interestingly, dual mycorrhizal fungal communities were observed in these multi-species mixtures. This research underscores the pivotal role of mycorrhizal partnerships and the interplay of biotic and abiotic factors in shaping root fungal communities, particularly in varied tree diversity settings, and its implications for effective forest management and biodiversity conservation.
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Affiliation(s)
- Bala Singavarapu
- Department of Community Ecology, UFZ-Helmholtz Centre for Environmental Research, Theodor-Lieser-Str. 4, D-06120, Halle (Saale), Germany
- Institute of Biology/Geobotany and Botanical Garden, Martin Luther University Halle-Wittenberg, Am Kirchtor 1, 06108, Halle, Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Puschstrasse 4, 04103, Leipzig, Germany
| | - Hafeez Ul Haq
- Department of Community Ecology, UFZ-Helmholtz Centre for Environmental Research, Theodor-Lieser-Str. 4, D-06120, Halle (Saale), Germany
- Institute of Biology/Geobotany and Botanical Garden, Martin Luther University Halle-Wittenberg, Am Kirchtor 1, 06108, Halle, Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Puschstrasse 4, 04103, Leipzig, Germany
| | - Friedrich Darnstaedt
- Department of Community Ecology, UFZ-Helmholtz Centre for Environmental Research, Theodor-Lieser-Str. 4, D-06120, Halle (Saale), Germany
- Institute of Biology/Geobotany and Botanical Garden, Martin Luther University Halle-Wittenberg, Am Kirchtor 1, 06108, Halle, Germany
| | - Ali Nawaz
- Department of Community Ecology, UFZ-Helmholtz Centre for Environmental Research, Theodor-Lieser-Str. 4, D-06120, Halle (Saale), Germany
- Department of Digital Health Sciences and Biomedicine, School of Life Sciences, University of Siegen, Am Eichenhang 50, 57076, Siegen, Germany
| | - Rémy Beugnon
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Puschstrasse 4, 04103, Leipzig, Germany
- CEFE, Univ Montpellier, CNRS, EPHE, IRD, 1919, route de Mende, F-34293, Montpellier Cedex 5, France
- Leipzig Institute for Meteorology, Universität Leipzig, Stephanstraße 3, 04103, Leipzig, Germany
| | - Simone Cesarz
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Puschstrasse 4, 04103, Leipzig, Germany
- Institute of Biology, Leipzig University, Puschstrasse 4, 04103, Leipzig, Germany
| | - Nico Eisenhauer
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Puschstrasse 4, 04103, Leipzig, Germany
- Institute of Biology, Leipzig University, Puschstrasse 4, 04103, Leipzig, Germany
| | - Jianqing Du
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
- Beijing Yanshan Earth Critical Zone National Research Station, University of Chinese Academy of Sciences, Beijing, 101408, China
| | - Kai Xue
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
- Beijing Yanshan Earth Critical Zone National Research Station, University of Chinese Academy of Sciences, Beijing, 101408, China
| | - Yanfen Wang
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
- Beijing Yanshan Earth Critical Zone National Research Station, University of Chinese Academy of Sciences, Beijing, 101408, China
- State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources, Chinese Academy of Sciences, 100101, Beijing, China
| | - Helge Bruelheide
- Institute of Biology/Geobotany and Botanical Garden, Martin Luther University Halle-Wittenberg, Am Kirchtor 1, 06108, Halle, Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Puschstrasse 4, 04103, Leipzig, Germany
| | - Tesfaye Wubet
- Department of Community Ecology, UFZ-Helmholtz Centre for Environmental Research, Theodor-Lieser-Str. 4, D-06120, Halle (Saale), Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Puschstrasse 4, 04103, Leipzig, Germany
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3
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Xiang X, Yao T, Man B, Lin D, Li C. Global hotspots and trends in microbial-mediated grassland carbon cycling: a bibliometric analysis. Front Microbiol 2024; 15:1377338. [PMID: 38741733 PMCID: PMC11090204 DOI: 10.3389/fmicb.2024.1377338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Accepted: 04/01/2024] [Indexed: 05/16/2024] Open
Abstract
Grasslands are among the most widespread environments on Earth, yet we still have poor knowledge of their microbial-mediated carbon cycling in the context of human activity and climate change. We conducted a systematic bibliometric analysis of 1,660 literature focusing on microbial-mediated grassland carbon cycling in the Scopus database from 1990 to 2022. We observed a steep increase in the number of multidisciplinary and interdisciplinary studies since the 2000s, with focus areas on the top 10 subject categories, especially in Agricultural and Biological Sciences. Additionally, the USA, Australia, Germany, the United Kingdom, China, and Austria exhibited high levels of productivity. We revealed that the eight papers have been pivotal in shaping future research in this field, and the main research topics concentrate on microbial respiration, interaction relationships, microbial biomass carbon, methane oxidation, and high-throughput sequencing. We further highlight that the new research hotspots in microbial-mediated grassland carbon cycling are mainly focused on the keywords "carbon use efficiency," "enzyme activity," "microbial community," and "high throughput sequencing." Our bibliometric analysis in the past three decades has provided insights into a multidisciplinary and evolving field of microbial-mediated grassland carbon cycling, not merely summarizing the literature but also critically identifying research hotspots and trends, the intellectual base, and interconnections within the existing body of collective knowledge and signposting the path for future research directions.
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Affiliation(s)
- Xing Xiang
- College of Grassland Science, Gansu Agricultural University, Lanzhou, China
- College of Life Science, Shangrao Normal University, Shangrao, China
- Key Laboratory for Regional Plants Conservation and Ecological Restoration of Northeast Jiangxi, College of Life Science, Shangrao Normal University, Shangrao, China
| | - Tuo Yao
- College of Grassland Science, Gansu Agricultural University, Lanzhou, China
- Key Laboratory of Grassland Ecosystem, Gansu Agricultural University, Ministry of Education, Lanzhou, China
| | - Baiying Man
- College of Life Science, Shangrao Normal University, Shangrao, China
- Key Laboratory for Regional Plants Conservation and Ecological Restoration of Northeast Jiangxi, College of Life Science, Shangrao Normal University, Shangrao, China
| | - Dong Lin
- College of Grassland Science, Gansu Agricultural University, Lanzhou, China
| | - Changning Li
- College of Grassland Science, Gansu Agricultural University, Lanzhou, China
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He B, Liu Z, Wang X, Li M, Lin X, Xiao Q, Hu J. Dosage and exposure time effects of two micro(nono)plastics on arbuscular mycorrhizal fungal diversity in two farmland soils planted with pepper (Capsicum annuum L.). THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 917:170216. [PMID: 38278273 DOI: 10.1016/j.scitotenv.2024.170216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 01/02/2024] [Accepted: 01/14/2024] [Indexed: 01/28/2024]
Abstract
As emerging environmental pollutants, micro(nano)plastics (MPs) like polyethylene terephthalate (PET) and low-density polyethylene (LDPE) have adverse effects on terrestrial biota and ecosystem function. However, the performance and roles of soil arbuscular mycorrhizal (AM) fungi in MPs-contaminated vegetable fields are poorly understood. Thus, a 120-day pot experiment was conducted to test the impacts of two input levels of either PET (~13 μm) or LDPE (~500 nm) on AM fungal diversity and pepper (Capsicum annuum L.) growth in two farmland soils collected from Nanjing (NJ) and Chongqing (CQ), respectively. In the vast majority of cases, 1 % rather than 0.1 % of both MPs greatly decreased the observed richness, Shannon and Simpson's indices, and Pielou's evenness of AM fungi, and decreased mycorrhizal colonization, root and shoot biomasses, fruit yield, and leaf superoxide dismutase, peroxidase, and catalase activities of pepper, while increased leaf malondialdehyde content. From day 40 to 120, the inhibition of either diversity or vitality of AM fungi by 1 % and 0.1 % of MPs gradually increased and weakened, respectively. Compared with PET, LDPE with substantially smaller particle size was more toxic to mycorrhization at day 40, but no longer at day 120. Almost all plant parameters significantly correlated to mycorrhizal colonization, which significantly correlated to both Shannon and Simpson's indices of AM fungi, and soil pH, available P and K concentrations, and alkaline phosphatase activity. All diversity indices of AM fungi clearly negatively correlated to soil pH from 4.4 to 5.6 for the NJ soil and from 5.3 to 6.5 for the CQ soil, and also positively to mineral N and negatively to available P concentrations for the NJ and CQ soils, respectively. Thus, the study emphasized that high input of MPs significantly inhibited soil AM fungal diversity and vitality and thereby vegetable growth via changing soil pH and major nutrient availability.
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Affiliation(s)
- Baiping He
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; School of Biology, Food and Environment, Hefei University, Hefei 230601, China
| | - Zihao Liu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xin Wang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Minghui Li
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Xiangui Lin
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Qingqing Xiao
- School of Biology, Food and Environment, Hefei University, Hefei 230601, China.
| | - Junli Hu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Šibanc N, Clark DR, Helgason T, Dumbrell AJ, Maček I. Extreme environments simplify reassembly of communities of arbuscular mycorrhizal fungi. mSystems 2024; 9:e0133123. [PMID: 38376262 PMCID: PMC10949450 DOI: 10.1128/msystems.01331-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 01/18/2024] [Indexed: 02/21/2024] Open
Abstract
The ecological impacts of long-term (press) disturbance on mechanisms regulating the relative abundance (i.e., commonness or rarity) and temporal dynamics of species within a community remain largely unknown. This is particularly true for the functionally important arbuscular mycorrhizal (AM) fungi; obligate plant-root endosymbionts that colonize more than two-thirds of terrestrial plant species. Here, we use high-resolution amplicon sequencing to examine how AM fungal communities in a specific extreme ecosystem-mofettes or natural CO2 springs caused by geological CO2 exhalations-are affected by long-term stress. We found that in mofettes, specific and temporally stable communities form as a subset of the local metacommunity. These communities are less diverse and dominated by adapted, "stress tolerant" taxa. Those taxa are rare in control locations and more benign environments worldwide, but show a stable temporal pattern in the extreme sites, consistently dominating the communities in grassland mofettes. This pattern of lower diversity and high dominance of specific taxa has been confirmed as relatively stable over several sampling years and is independently observed across multiple geographic locations (mofettes in different countries). This study implies that the response of soil microbial community composition to long-term stress is relatively predictable, which can also reflect the community response to other anthropogenic stressors (e.g., heavy metal pollution or land use change). Moreover, as AM fungi are functionally differentiated, with different taxa providing different benefits to host plants, changes in community structure in response to long-term environmental change have the potential to impact terrestrial plant communities and their productivity.IMPORTANCEArbuscular mycorrhizal (AM) fungi form symbiotic relationships with more than two-thirds of plant species. In return for using plant carbon as their sole energy source, AM fungi improve plant mineral supply, water balance, and protection against pathogens. This work demonstrates the importance of long-term experiments to understand the effects of long-term environmental change and long-term disturbance on terrestrial ecosystems. We demonstrated a consistent response of the AM fungal community to a long-term stress, with lower diversity and a less variable AM fungal community over time under stress conditions compared to the surrounding controls. We have also identified, for the first time, a suite of AM fungal taxa that are consistently observed across broad geographic scales in stressed and anthropogenically heavily influenced ecosystems. This is critical because global environmental change in terrestrial ecosystems requires an integrative approach that considers both above- and below-ground changes and examines patterns over a longer geographic and temporal scale, rather than just single sampling events.
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Affiliation(s)
- Nataša Šibanc
- Department of Agronomy, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
- Department of forest physiology and genetics, Slovenian Forestry Institute, Ljubljana, Slovenia
| | - Dave R. Clark
- School of Life Sciences, University of Essex, Colchester, United Kingdom
- Institute for Analytics and Data Science, University of Essex, Colchester, United Kingdom
| | - Thorunn Helgason
- Department of Biology, University of York, York, United Kingdom
- Institute for Ecology and Evolution, School of Biological Sciences, University of Edinburgh, Edinburgh, Scotland
| | - Alex J. Dumbrell
- School of Life Sciences, University of Essex, Colchester, United Kingdom
| | - Irena Maček
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
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Dyshko V, Hilszczańska D, Davydenko K, Matić S, Moser WK, Borowik P, Oszako T. An Overview of Mycorrhiza in Pines: Research, Species, and Applications. PLANTS (BASEL, SWITZERLAND) 2024; 13:506. [PMID: 38498468 PMCID: PMC10891885 DOI: 10.3390/plants13040506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 02/04/2024] [Accepted: 02/07/2024] [Indexed: 03/20/2024]
Abstract
In the latest literature, climate models show that the conditions for pines, spruces, larches, and birches will deteriorate significantly. In Poland, as well as in other European countries, there are already signs of the decline of these species. This review article deals with the symbiotic relationships between fungi and plants, which can hardly be overestimated, using the example of pine trees. These are the oldest known symbiotic relationships, which are of great benefit to both components and can help plants, in particular, survive periods of severe drought and the attack of pathogens on the roots. This article describes symbioses and their causal conditions, as well as the mycorrhizal components of pine trees and their properties; characterizes ectomycorrhizal fungi and their mushroom-forming properties; and provides examples of the cultivation of pure fungal cultures, with particular attention to the specificity of the mycorrhizal structure and its effects on the growth and development of Pinus species. Finally, the role of mycorrhiza in plant protection and pathogen control is described.
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Affiliation(s)
- Valentyna Dyshko
- Ukrainian Research Institute of Forestry and Forest Melioration Named after G. M. Vysotsky, 61024 Kharkiv, Ukraine; (V.D.); (K.D.)
| | - Dorota Hilszczańska
- Department of Forest Ecology, Forest Research Institute, Sękocin Stary, Braci Leśnej 3, 05-090 Raszyn, Poland;
| | - Kateryna Davydenko
- Ukrainian Research Institute of Forestry and Forest Melioration Named after G. M. Vysotsky, 61024 Kharkiv, Ukraine; (V.D.); (K.D.)
- Department of Forest Mycology and Plant Pathology, Uppsala BioCenter, Swedish University of Agricultural Sciences, P.O. Box 7026, 75007 Uppsala, Sweden
| | - Slavica Matić
- Institute for Sustainable Plant Protection (IPSP), National Research Council of Italy (CNR), Strada delle Cacce 73, 10135 Torino, Italy;
| | - W. Keith Moser
- US Department of Agriculture, Forest Service, Rocky Mountain Research Station, 2500 S. Pine Knoll Dr., Flagstaff, AZ 86001, USA;
| | - Piotr Borowik
- Faculty of Civil Engineering and Environmental Sciences, Bialystok University of Technology, Wiejska 45E, 15-351 Białystok, Poland;
| | - Tomasz Oszako
- Faculty of Civil Engineering and Environmental Sciences, Bialystok University of Technology, Wiejska 45E, 15-351 Białystok, Poland;
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d’Entremont TW, Kivlin SN. Specificity in plant-mycorrhizal fungal relationships: prevalence, parameterization, and prospects. FRONTIERS IN PLANT SCIENCE 2023; 14:1260286. [PMID: 37929168 PMCID: PMC10623146 DOI: 10.3389/fpls.2023.1260286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 10/03/2023] [Indexed: 11/07/2023]
Abstract
Species interactions exhibit varying degrees of specialization, ranging from generalist to specialist interactions. For many interactions (e.g., plant-microbiome) we lack standardized metrics of specialization, hindering our ability to apply comparative frameworks of specificity across niche axes and organismal groups. Here, we discuss the concept of plant host specificity of arbuscular mycorrhizal (AM) fungi and ectomycorrhizal (EM) fungi, including the predominant theories for their interactions: Passenger, Driver, and Habitat Hypotheses. We focus on five major areas of interest in advancing the field of plant-mycorrhizal fungal host specificity: phylogenetic specificity, host physiology specificity, functional specificity, habitat specificity, and mycorrhizal fungal-mediated plant rarity. Considering the need to elucidate foundational concepts of specificity in this globally important symbiosis, we propose standardized metrics and comparative studies to enhance our understanding. We also emphasize the importance of analyzing global mycorrhizal data holistically to draw meaningful conclusions and suggest a shift toward single-species analyses to unravel the complexities underlying these associations.
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Affiliation(s)
- Tyler W. d’Entremont
- Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN, United States
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Wipulasena AYAP, Davison J, Helm A, Kasari L, Moora M, Prangel E, Reitalu T, Vahter T, Vasar M, Zobel M. Soil community composition in dynamic stages of semi-natural calcareous grassland. PLoS One 2023; 18:e0292425. [PMID: 37847721 PMCID: PMC10581465 DOI: 10.1371/journal.pone.0292425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 09/20/2023] [Indexed: 10/19/2023] Open
Abstract
European dry thin-soil calcareous grasslands (alvars) are species-rich semi-natural habitats. Cessation of traditional management, such as mowing and grazing, leads to shrub and tree encroachment and the local extinction of characteristic alvar species. While soil microbes are known to play a critical role in driving vegetation and ecosystem dynamics, more information is needed about their composition and function in grasslands of different dynamic stages. Here we assess the composition of soil fungal, prokaryotic, and plant communities using soil environmental DNA from restored alvar grasslands in Estonia. The study areas included grasslands that had experienced different degrees of woody encroachment prior to restoration (woody plant removal and grazing), as well as unmanaged open grasslands. We found that, in general, different taxonomic groups exhibited correlated patterns of between-community variation. Previous forest sites, which had prior to restoration experienced a high degree of woody encroachment by ectomycorrhizal Scots pine, were compositionally most distinct from managed open grasslands, which had little woody vegetation even prior to restoration. The functional structure of plant and fungal communities varied in ways that were consistent with the representation of mycorrhizal types in the ecosystems prior to restoration. Compositional differences between managed and unmanaged open grasslands reflecting the implementation of grazing without further management interventions were clearer among fungal, and to an extent prokaryotic, communities than among plant communities. While previous studies have shown that during woody encroachment of alvar grassland, plant communities change first and fungal communities follow, our DNA-based results suggest that microbial communities reacted faster than plant communities during the restoration of grazing management in alvar grassland. We conclude that while the plant community responds faster to cessation of management, the fungal community responds faster to restoration of management. This may indicate hysteresis, where the eventual pathway back to the original state (grazed ecosystem) differs from the pathway taken towards the alternative state (abandoned semi-natural grassland ecosystem).
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Affiliation(s)
- A. Y. Ayesh Piyara Wipulasena
- Department of Botany, Institute of Ecology and Earth Sciences, Faculty of Science and Technology, University of Tartu, Tartu, Estonia
| | - John Davison
- Department of Botany, Institute of Ecology and Earth Sciences, Faculty of Science and Technology, University of Tartu, Tartu, Estonia
| | - Aveliina Helm
- Department of Botany, Institute of Ecology and Earth Sciences, Faculty of Science and Technology, University of Tartu, Tartu, Estonia
| | - Liis Kasari
- Department of Botany, Institute of Ecology and Earth Sciences, Faculty of Science and Technology, University of Tartu, Tartu, Estonia
| | - Mari Moora
- Department of Botany, Institute of Ecology and Earth Sciences, Faculty of Science and Technology, University of Tartu, Tartu, Estonia
| | - Elisabeth Prangel
- Department of Botany, Institute of Ecology and Earth Sciences, Faculty of Science and Technology, University of Tartu, Tartu, Estonia
| | - Triin Reitalu
- Department of Botany, Institute of Ecology and Earth Sciences, Faculty of Science and Technology, University of Tartu, Tartu, Estonia
| | - Tanel Vahter
- Department of Botany, Institute of Ecology and Earth Sciences, Faculty of Science and Technology, University of Tartu, Tartu, Estonia
| | - Martti Vasar
- Department of Botany, Institute of Ecology and Earth Sciences, Faculty of Science and Technology, University of Tartu, Tartu, Estonia
| | - Martin Zobel
- Department of Botany, Institute of Ecology and Earth Sciences, Faculty of Science and Technology, University of Tartu, Tartu, Estonia
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9
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Cheng Y, Rutten G, Liu X, Ma M, Song Z, Maaroufi NI, Zhou S. Host plant height explains the effect of nitrogen enrichment on arbuscular mycorrhizal fungal communities. THE NEW PHYTOLOGIST 2023; 240:399-411. [PMID: 37482960 DOI: 10.1111/nph.19140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 06/28/2023] [Indexed: 07/25/2023]
Abstract
Nitrogen (N) enrichment is widely known to affect the root-associated arbuscular mycorrhizal fungal (AMF) community in different ways, for example, via altering soil properties and/or shifting host plant functional structure. However, empirical knowledge of their relative importance is still lacking. Using a long-term N addition experiment, we measured the AMF community taxonomic and phylogenetic diversity at the single plant species (roots of 15 plant species) and plant community (mixed roots) levels. We also measured four functional traits of 35 common plant species along the N addition gradient. We found divergent responses of AMF diversity to N addition for host plants with different innate heights (i.e. plant natural height under unfertilized treatment). Furthermore, our data showed that species-specific responses of AMF diversity to N addition were negatively related to the change in maximum plant height. When scaling up to the community level, N addition affected AMF diversity mainly through increasing the maximum plant height, rather than altering soil properties. Our results highlight the importance of plant height in driving AMF community dynamics under N enrichment at both species and community levels, thus providing important implications for understanding the response of AMF diversity to anthropogenic N deposition.
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Affiliation(s)
- Yikang Cheng
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Coastal Ecosystems Research Station of the Yangtze River Estuary, Institute of Biodiversity Science, School of Life Sciences, Fudan University, 2005 Songhu Road, Shanghai, 200438, China
- Institute of Plant Sciences, University of Bern, 3013, Bern, Switzerland
| | - Gemma Rutten
- Institute of Plant Sciences, University of Bern, 3013, Bern, Switzerland
| | - Xiang Liu
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems & College of Ecology, Lanzhou University, 222 Tianshui South Road, Lanzhou, 730000, China
| | - Miaojun Ma
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems & College of Ecology, Lanzhou University, 222 Tianshui South Road, Lanzhou, 730000, China
| | - Zhiping Song
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Coastal Ecosystems Research Station of the Yangtze River Estuary, Institute of Biodiversity Science, School of Life Sciences, Fudan University, 2005 Songhu Road, Shanghai, 200438, China
| | - Nadia I Maaroufi
- Institute of Plant Sciences, University of Bern, 3013, Bern, Switzerland
- Department of Soil and Environment, Swedish University of Agricultural Sciences, 75007, Uppsala, Sweden
| | - Shurong Zhou
- Key Laboratory of Genetics and Germplasm Innovation of Tropical Special Forest Trees and Ornamental Plants, Ministry of Education, College of Forestry, Hainan University, Haikou, 570228, China
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10
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López-Angulo J, Matesanz S, Illuminati A, Pescador DS, Sánchez AM, Pías B, Chacón-Labella J, de la Cruz M, Escudero A. Ecological drivers of fine-scale distribution of arbuscular mycorrhizal fungi in a semiarid Mediterranean scrubland. ANNALS OF BOTANY 2023; 131:1107-1119. [PMID: 36976581 PMCID: PMC10457037 DOI: 10.1093/aob/mcad050] [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: 01/24/2023] [Accepted: 03/27/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND AND AIMS Arbuscular mycorrhizal (AM) fungi enhance the uptake of water and minerals by the plant hosts, alleviating plant stress. Therefore, AM fungal-plant interactions are particularly important in drylands and other stressful ecosystems. We aimed to determine the combined and independent effects of above- and below-ground plant community attributes (i.e. diversity and composition), soil heterogeneity and spatial covariates on the spatial structure of the AM fungal communities in a semiarid Mediterranean scrubland. Furthermore, we evaluated how the phylogenetic relatedness of both plants and AM fungi shapes these symbiotic relationships. METHODS We characterized the composition and diversity of AM fungal and plant communities in a dry Mediterranean scrubland taxonomically and phylogenetically, using DNA metabarcoding and a spatially explicit sampling design at the plant neighbourhood scale. KEY RESULTS The above- and below-ground plant community attributes, soil physicochemical properties and spatial variables explained unique fractions of AM fungal diversity and composition. Mainly, variations in plant composition affected the AM fungal composition and diversity. Our results also showed that particular AM fungal taxa tended to be associated with closely related plant species, suggesting the existence of a phylogenetic signal. Although soil texture, fertility and pH affected AM fungal community assembly, spatial factors had a greater influence on AM fungal community composition and diversity than soil physicochemical properties. CONCLUSIONS Our results highlight that the more easily accessible above-ground vegetation is a reliable indicator of the linkages between plant roots and AM fungi. We also emphasize the importance of soil physicochemical properties in addition to below-ground plant information, while accounting for the phylogenetic relationships of both plants and fungi, because these factors improve our ability to predict the relationships between AM fungal and plant communities.
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Affiliation(s)
- Jesús López-Angulo
- Área de Biodiversidad y Conservación, Universidad Rey Juan Carlos, 28933, Móstoles, Madrid, Spain
- Department of Environmental Systems Science, Swiss Federal Institute of Technology Zurich (ETH), 8092 Zurich, Switzerland
| | - Silvia Matesanz
- Área de Biodiversidad y Conservación, Universidad Rey Juan Carlos, 28933, Móstoles, Madrid, Spain
| | - Angela Illuminati
- Área de Biodiversidad y Conservación, Universidad Rey Juan Carlos, 28933, Móstoles, Madrid, Spain
| | - David S Pescador
- Área de Biodiversidad y Conservación, Universidad Rey Juan Carlos, 28933, Móstoles, Madrid, Spain
- Departamento de Farmacología, Farmacognosia y Botánica, Facultad de Farmacia, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Ana M Sánchez
- Área de Biodiversidad y Conservación, Universidad Rey Juan Carlos, 28933, Móstoles, Madrid, Spain
| | - Beatriz Pías
- Departamento de Biodiversidad, Ecología y Evolución, Facultad de Ciencias Biológicas, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | | | - Marcelino de la Cruz
- Área de Biodiversidad y Conservación, Universidad Rey Juan Carlos, 28933, Móstoles, Madrid, Spain
| | - Adrián Escudero
- Área de Biodiversidad y Conservación, Universidad Rey Juan Carlos, 28933, Móstoles, Madrid, Spain
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11
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Hoosein S, Neuenkamp L, Trivedi P, Paschke MW. AM fungal-bacterial relationships: what can they tell us about ecosystem sustainability and soil functioning? FRONTIERS IN FUNGAL BIOLOGY 2023; 4:1141963. [PMID: 37746131 PMCID: PMC10512368 DOI: 10.3389/ffunb.2023.1141963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 07/05/2023] [Indexed: 09/26/2023]
Abstract
Considering our growing population and our continuous degradation of soil environments, understanding the fundamental ecology of soil biota and plant microbiomes will be imperative to sustaining soil systems. Arbuscular mycorrhizal (AM) fungi extend their hyphae beyond plant root zones, creating microhabitats with bacterial symbionts for nutrient acquisition through a tripartite symbiotic relationship along with plants. Nonetheless, it is unclear what drives these AM fungal-bacterial relationships and how AM fungal functional traits contribute to these relationships. By delving into the literature, we look at the drivers and complexity behind AM fungal-bacterial relationships, describe the shift needed in AM fungal research towards the inclusion of interdisciplinary tools, and discuss the utilization of bacterial datasets to provide contextual evidence behind these complex relationships, bringing insights and new hypotheses to AM fungal functional traits. From this synthesis, we gather that interdependent microbial relationships are at the foundation of understanding microbiome functionality and deciphering microbial functional traits. We suggest using pattern-based inference tools along with machine learning to elucidate AM fungal-bacterial relationship trends, along with the utilization of synthetic communities, functional gene analyses, and metabolomics to understand how AM fungal and bacterial communities facilitate communication for the survival of host plant communities. These suggestions could result in improving microbial inocula and products, as well as a better understanding of complex relationships in terrestrial ecosystems that contribute to plant-soil feedbacks.
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Affiliation(s)
- Shabana Hoosein
- Department of Forest and Rangeland Stewardship/Graduate Degree Program in Ecology, Colorado State University, Fort Collins, CO, United States
| | - Lena Neuenkamp
- Institute of Landscape Ecology, Münster University, Münster, Germany
- Department of Ecology and Multidisciplinary Institute for Environment Studies “Ramon Margalef,” University of Alicante, Alicante, Spain
| | - Pankaj Trivedi
- Microbiome Network, Department of Agricultural Biology, Graduate Degree Program in Ecology, Colorado State University, Fort Collins, CO, United States
| | - Mark W. Paschke
- Department of Forest and Rangeland Stewardship/Graduate Degree Program in Ecology, Colorado State University, Fort Collins, CO, United States
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12
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Chen K, Zhang J, Muneer MA, Xue K, Niu H, Ji B. Plant community and soil available nutrients drive arbuscular mycorrhizal fungal community shifts during alpine meadow degradation. FUNGAL ECOL 2023. [DOI: 10.1016/j.funeco.2022.101211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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13
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Plant Community Associates with Rare Rather than Abundant Fungal Taxa in Alpine Grassland Soils. Appl Environ Microbiol 2023; 89:e0186222. [PMID: 36602328 PMCID: PMC9888191 DOI: 10.1128/aem.01862-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The importance of the rare microbial biosphere in maintaining biodiversity and ecological functions has been highlighted recently. However, the current understanding of the spatial distribution of rare microbial taxa is still limited, with only a few investigations for rare prokaryotes and virtually none for rare fungi. Here, we investigated the spatial patterns of rare and abundant fungal taxa in alpine grassland soils across 2,000 km of the Qinghai-Tibetan plateau. We found that most locally rare fungal taxa remained rare (13.07%) or were absent (82.85%) in other sites, whereas only a small proportion (4.06%) shifted between rare and abundant among sites. Although they differed in terms of diversity levels and compositions, the distance decay relationships of both the rare and the abundant fungal taxa were valid and displayed similar turnover rates. Moreover, the community assemblies of both rare and abundant fungal taxa were predominantly controlled by deterministic rather than stochastic processes. Notably, the community composition of rare rather than abundant fungal taxa associated with the plant community composition. In summary, this study advances our understanding of the biogeographic features of rare fungal taxa in alpine grasslands and highlights the concordance between plant communities and rare fungal subcommunities in soil. IMPORTANCE Our current understanding of the ecology and functions of rare microbial taxa largely relies on research conducted on prokaryotes. Despite the key ecological roles of soil fungi, little is known about the biogeographic patterns and drivers of rare and abundant fungi in soils. In this study, we investigated the spatial patterns of rare and abundant fungal taxa in Qinghai-Tibetan plateau (QTP) alpine grassland soils across 2,000 km, with a special concentration on the importance of the plant communities in shaping rare fungal taxa. We showed that rare fungal taxa generally had a biogeographic pattern that was similar to that of abundant fungal taxa in alpine grassland soils on the QTP. Furthermore, the plant community composition was strongly related to the community composition of rare taxa but not abundant taxa. In summary, this study significantly increases our biogeographic and ecological knowledge of rare fungal taxa in alpine grassland soils.
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14
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Community structure of AM fungal species of six host plant species on the Qinghai-Tibet Plateau. Symbiosis 2022. [DOI: 10.1007/s13199-022-00884-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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15
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Zhou Y, Chen K, Muneer MA, Li C, Shi H, Tang Y, Zhang J, Ji B. Soil moisture and pH differentially drive arbuscular mycorrhizal fungal composition in the riparian zone along an alpine river of Nam Co watershed. Front Microbiol 2022; 13:994918. [PMID: 36246247 PMCID: PMC9561679 DOI: 10.3389/fmicb.2022.994918] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 09/08/2022] [Indexed: 11/13/2022] Open
Abstract
The riparian zone is an important ecological corridor connecting the upstream and downstream rivers. Its highly complex biological and physical environments significantly affect the biogeographical pattern of species and various ecosystem functions. However, in alpine riparian ecosystems, the distribution patterns and drivers of arbuscular mycorrhizal (AM) fungi, a group of functionally important root-associated microorganisms, remain poorly understood. In this study, we investigated the AM fungal diversity and community composition in near-bank (wetland) and far-bank (alpine meadows) soils along the Niaqu River in the Nam Co watershed, and assessed the relative importance of abiotic and biotic filtering in shaping these distributions. Overall, 184 OTUs were identified in the riparian ecosystem, predominantly belonging to the genus Glomus, especially in the downstream soils, and Claroideoglomus in near-bank soils. AM fungal colonization, spore density, and α diversity showed an overall increasing trend along the river, while the extraradical hyphae declined dramatically from the middle of the river. AM fungal communities significantly varied between the wetland and alpine meadows in the riparian zone, mainly driven by the geographic distance, soil water content, soil pH, and plant communities. Specifically, soil pH was the principal predictor of AM fungal community in near-bank wetland soils, while soil water content had a most substantial direct effect in alpine meadows. These findings indicate that abiotic factors are the most important divers in shaping AM fungal communities at the watershed scale, which could be helpful in alpine riparian biodiversity conservation and management.
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Affiliation(s)
- Yaxing Zhou
- School of Grassland Science, Beijing Forestry University, Beijing, China
| | - Keyu Chen
- School of Grassland Science, Beijing Forestry University, Beijing, China
| | - Muhammad Atif Muneer
- College of Resources and Environment/International Magnesium Institute, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Congcong Li
- School of Grassland Science, Beijing Forestry University, Beijing, China
| | - Hailan Shi
- School of Grassland Science, Beijing Forestry University, Beijing, China
| | - Yu Tang
- School of Grassland Science, Beijing Forestry University, Beijing, China
| | - Jing Zhang
- School of Grassland Science, Beijing Forestry University, Beijing, China
- *Correspondence: Jing Zhang,
| | - Baoming Ji
- School of Grassland Science, Beijing Forestry University, Beijing, China
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16
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von Hoermann C, Weithmann S, Sikorski J, Nevo O, Szpila K, Grzywacz A, Grunwald JE, Reckel F, Overmann J, Steiger S, Ayasse M. Linking bacteria, volatiles and insects on carrion: the role of temporal and spatial factors regulating inter-kingdom communication via volatiles. ROYAL SOCIETY OPEN SCIENCE 2022; 9:220555. [PMID: 36061525 PMCID: PMC9428529 DOI: 10.1098/rsos.220555] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 08/10/2022] [Indexed: 06/15/2023]
Abstract
Multi-kingdom community complexity and the chemically mediated dynamics between bacteria and insects have recently received increased attention in carrion research. However, the strength of these inter-kingdom interactions and the factors that regulate them are poorly studied. We used 75 piglet cadavers across three forest regions to survey the relationship between three actors (epinecrotic bacteria, volatile organic compounds (VOCs) and flies) during the first 4 days of decomposition and the factors that regulate this interdependence. The results showed a dynamic bacterial change during decomposition (temperature-time index) and across the forest management gradient, but not between regions. Similarly, VOC emission was dynamic across a temperature-time index and the forest management gradient but did not differ between regions. However, fly occurrence was dynamic across both space and time. The strong interdependence between the three actors was mainly regulated by the temperature-time index and the study regions, thereby revealing regulation at temporal and spatial scales. Additionally, the actor interdependence was stable across a gradient of forest management intensity. By combining different actors of decomposition, we have expanded our knowledge of the holistic mechanisms regulating carrion community dynamics and inter-kingdom interactions, an important precondition for better describing food web dynamics and entire ecosystem functions.
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Affiliation(s)
- Christian von Hoermann
- Department of Conservation and Research, Bavarian Forest National Park, Grafenau, Germany
| | - Sandra Weithmann
- Institute of Evolutionary Ecology and Conservation Genomics, University of Ulm, Ulm, Germany
| | - Johannes Sikorski
- Department of Microbial Ecology and Diversity Research, Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures GmbH, Braunschweig, Germany
| | - Omer Nevo
- Institute of Evolutionary Ecology and Conservation Genomics, University of Ulm, Ulm, Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
- Institute of Biodiversity, Friedrich Schiller University, Jena, Germany
| | - Krzysztof Szpila
- Department of Ecology and Biogeography, Nicolaus Copernicus University, Torun, Poland
| | - Andrzej Grzywacz
- Department of Ecology and Biogeography, Nicolaus Copernicus University, Torun, Poland
| | - Jan-Eric Grunwald
- Bavarian State Criminal Police Office, SG 204, Microtraces/Biology, 80636 Munich, Germany
| | - Frank Reckel
- Bavarian State Criminal Police Office, SG 204, Microtraces/Biology, 80636 Munich, Germany
| | - Jörg Overmann
- Department of Microbial Ecology and Diversity Research, Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures GmbH, Braunschweig, Germany
| | - Sandra Steiger
- Department of Evolutionary Animal Ecology, University of Bayreuth, Bayreuth, Germany
| | - Manfred Ayasse
- Institute of Evolutionary Ecology and Conservation Genomics, University of Ulm, Ulm, Germany
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17
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Fu W, Chen B, Rillig MC, Jansa J, Ma W, Xu C, Luo W, Wu H, Hao Z, Wu H, Zhao A, Yu Q, Han X. Community response of arbuscular mycorrhizal fungi to extreme drought in a cold-temperate grassland. THE NEW PHYTOLOGIST 2022; 234:2003-2017. [PMID: 34449895 DOI: 10.1111/nph.17692] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 08/20/2021] [Indexed: 06/13/2023]
Abstract
Climate extremes pose enormous threats to natural ecosystems. Arbuscular mycorrhizal (AM) fungi are key plant symbionts that can affect plant community dynamics and ecosystem stability. However, knowledge about how AM fungal communities respond to climate extremes in natural ecosystems remains elusive. Based on a grassland extreme drought experiment in Inner Mongolia, we investigated the response of AM fungal communities to extreme drought in association with plant communities. The experiment simulated two types of extreme drought (chronic/intense) of once-in-20-year occurrence. AM fungal richness and community composition exhibited high sensitivity to extreme drought and were more sensitive to intense drought than chronic drought. This community sensitivity (i.e. decline in richness and shifts in community composition) of AM fungi can be jointly explained by soil moisture, plant richness, and aboveground productivity. Notably, the robustness of the plant-AM fungal community co-response increased with drought intensity. Our results indicate that AM fungal communities are sensitive to climate extremes, and we propose that the plant community mediates AM fungal community responses. Given the ubiquitous nature of AM associations, their climate sensitivity may have profound consequences on plant communities and ecosystem stability under climate change.
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Affiliation(s)
- Wei Fu
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Baodong Chen
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Matthias C Rillig
- Institute of Biology, Freie Universität Berlin, Berlin, 14195, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, 14195, Germany
| | - Jan Jansa
- Laboratory of Fungal Biology, Institute of Microbiology, Czech Academy of Sciences, Vídeňská 1083, Prague 4, 14220, Czech Republic
| | - Wang Ma
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Erguna Forest-Steppe Ecotone Research Station, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110164, China
| | - Chong Xu
- Ministry of Agriculture Key Laboratory of Crop Nutrition and Fertilization, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730020, China
| | - Wentao Luo
- Erguna Forest-Steppe Ecotone Research Station, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110164, China
| | - Honghui Wu
- Ministry of Agriculture Key Laboratory of Crop Nutrition and Fertilization, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Zhipeng Hao
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Hui Wu
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Aihua Zhao
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qiang Yu
- National Hulunber Grassland Ecosystem Observation and Research Station, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 10008, China
| | - Xingguo Han
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Erguna Forest-Steppe Ecotone Research Station, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110164, China
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
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18
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Aavik T, Träger S, Zobel M, Honnay O, Van Geel M, Bueno CG, Koorem K. The joint effect of host plant genetic diversity and arbuscular mycorrhizal fungal communities on restoration success. Funct Ecol 2021. [DOI: 10.1111/1365-2435.13914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tsipe Aavik
- Department of Botany Institute of Ecology and Earth Sciences University of Tartu Tartu Estonia
| | - Sabrina Träger
- Department of Botany Institute of Ecology and Earth Sciences University of Tartu Tartu Estonia
- Institute of Biology/Geobotany and Botanical Garden Martin‐Luther‐University Halle‐Wittenberg Halle (Saale) Germany
| | - Martin Zobel
- Department of Botany Institute of Ecology and Earth Sciences University of Tartu Tartu Estonia
| | - Olivier Honnay
- Plant Conservation and Population Biology Biology Department University of Leuven Heverlee Belgium
| | - Maarten Van Geel
- Plant Conservation and Population Biology Biology Department University of Leuven Heverlee Belgium
| | - C. Guillermo Bueno
- Department of Botany Institute of Ecology and Earth Sciences University of Tartu Tartu Estonia
| | - Kadri Koorem
- Department of Botany Institute of Ecology and Earth Sciences University of Tartu Tartu Estonia
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19
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Liu S, Moora M, Vasar M, Zobel M, Öpik M, Koorem K. Arbuscular mycorrhizal fungi promote small-scale vegetation recovery in the forest understorey. Oecologia 2021; 197:685-697. [PMID: 34716490 DOI: 10.1007/s00442-021-05065-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 10/17/2021] [Indexed: 11/26/2022]
Abstract
Root-associating arbuscular mycorrhizal (AM) fungi foster vegetation recovery in degraded habitats. AM fungi increase nutrient availability for host plants; therefore, their importance is expected to be higher when nutrient availability is low. However, little is known about how small-scale variation in nutrient availability influences plant and AM fungal communities in a stable ecosystem. We conducted a 2-year field study in the understorey of a boreonemoral forest where we examined plant and AM fungal communities at microsites (15 cm diameter) with intact vegetation cover and at disturbed microsites where vegetation was cleared away and soil was sterilized to remove soil biota. We manipulated soil nutrient content (increased with fertilizer, unchanged, or decreased with sucrose addition) and fungal activity (natural or suppressed by fungicide addition) at these microsites. After two vegetation seasons, manipulations with nutrient content resulted in significant, although moderate, differences in the content of soil nutrients (e.g. in soil phosphorus). Suppression of fungal activity resulted in lower richness, abundance and phylogenetic diversity of AM fungal community, independently of microsite type and soil fertility level. Plant species richness and diversity decreased when fungal activity was suppressed at disturbed but not in intact microsites. The correlation between plant and AM fungal communities was not influenced by microsite type or soil fertility. We conclude that small-scale variation in soil fertility and habitat integrity does not influence the interactions between plants and AM fungi. The richness, but not composition, of AM fungal communities recovered fast after small-scale disturbance and supported the recovery of species-rich vegetation.
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Affiliation(s)
- Siqiao Liu
- Department of Botany, Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia.
| | - Mari Moora
- Department of Botany, Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
| | - Martti Vasar
- Department of Botany, Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
| | - Martin Zobel
- Department of Botany, Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
| | - Maarja Öpik
- Department of Botany, Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
| | - Kadri Koorem
- Department of Botany, Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
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20
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Sepp S, Davison J, Moora M, Neuenkamp L, Oja J, Roslin T, Vasar M, Öpik M, Zobel M. Woody encroachment in grassland elicits complex changes in the functional structure of above‐ and belowground biota. Ecosphere 2021. [DOI: 10.1002/ecs2.3512] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Siim‐Kaarel Sepp
- Department of Botany University of Tartu Lai Street 40 TartuEE 51005Estonia
| | - John Davison
- Department of Botany University of Tartu Lai Street 40 TartuEE 51005Estonia
| | - Mari Moora
- Department of Botany University of Tartu Lai Street 40 TartuEE 51005Estonia
| | - Lena Neuenkamp
- Department of Botany University of Tartu Lai Street 40 TartuEE 51005Estonia
| | - Jane Oja
- Department of Botany University of Tartu Lai Street 40 TartuEE 51005Estonia
| | - Tomas Roslin
- Department of Ecology Swedish University of Agricultural Sciences P.O. Box 7044 UppsalaSE 756 51Sweden
| | - Martti Vasar
- Department of Botany University of Tartu Lai Street 40 TartuEE 51005Estonia
| | - Maarja Öpik
- Department of Botany University of Tartu Lai Street 40 TartuEE 51005Estonia
| | - Martin Zobel
- Department of Botany University of Tartu Lai Street 40 TartuEE 51005Estonia
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21
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Idbella M, Bonanomi G, De Filippis F, Amor G, Chouyia FE, Fechtali T, Mazzoleni S. Contrasting effects of Rhizophagus irregularis versus bacterial and fungal seed endophytes on Trifolium repens plant-soil feedback. MYCORRHIZA 2021; 31:103-115. [PMID: 33185700 DOI: 10.1007/s00572-020-01003-4] [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: 06/30/2020] [Accepted: 11/08/2020] [Indexed: 06/11/2023]
Abstract
Interactions between plants and soil affect plant-plant interactions and community composition by modifying soils conditions in plant-soil feedback, where associated microbes have the most crucial role. Both arbuscular mycorrhizal fungi (AMF) and microbial seed endophytes have been demonstrated to influence, directly or indirectly, biotic or abiotic soil properties, thus affecting subsequent plant growth, and community structure. However, little is known about how plant endophyte communities, individually or in interaction with AMF, affect plant-soil feedback processes. Here, we investigated, through a manipulative experiment, the behavior of endophyte-free and endophyte-associated Trifolium repens plants grown in soils previously conditioned by conspecific endophyte-free and endophyte-associated plants, inoculated or not by Rhizophagus intraradices. Furthermore, we identified microbial endophytes directly from the inner tissues of seeds by high-throughput sequencing, to compare seed fungal and bacterial endophyte composition. Results demonstrated that the outcome of simultaneous occurrence of seed endophytes and AMF on plant behavior depended on matching the endophytic status, i.e., either the presence or absence of seed microbial endophytes, of the conditioning and response phase. Seed fungal endophytes generated strong conspecific negative feedback, while seed bacterial endophytes proved to shift the feedback from negative to positive. Moreover, the simultaneous occurrence of both seed endophytes with AMF could either generate or expand negative plant-soil feedback effects. Our results show that seed and root symbionts can play a significant role on setting conspecific plant-soil feedback.
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Affiliation(s)
- Mohamed Idbella
- Faculty of Sciences and Techniques, Hassan II University, Casablanca, Morocco.
- Department of Agricultural Sciences, University of Naples Federico II, via Università 100, 80055, Portici, NA, Italy.
| | - Giuliano Bonanomi
- Department of Agricultural Sciences, University of Naples Federico II, via Università 100, 80055, Portici, NA, Italy
| | - Francesca De Filippis
- Department of Agricultural Sciences, University of Naples Federico II, via Università 100, 80055, Portici, NA, Italy
| | - Ghita Amor
- Faculty of Sciences and Techniques, Hassan II University, Casablanca, Morocco
- Department of Agricultural Sciences, University of Naples Federico II, via Università 100, 80055, Portici, NA, Italy
| | - Fatima Ezzahra Chouyia
- Faculty of Sciences and Techniques, Hassan II University, Casablanca, Morocco
- Department of Agricultural Sciences, University of Naples Federico II, via Università 100, 80055, Portici, NA, Italy
| | - Taoufiq Fechtali
- Faculty of Sciences and Techniques, Hassan II University, Casablanca, Morocco
| | - Stefano Mazzoleni
- Department of Agricultural Sciences, University of Naples Federico II, via Università 100, 80055, Portici, NA, Italy
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22
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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: 13] [Impact Index Per Article: 3.3] [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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23
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Chen W, Koide RT, Eissenstat DM. Topographic and Host Effects on Arbuscular Mycorrhizal and Ectomycorrhizal Fungal Communities in a Forested Watershed. Ecosystems 2020. [DOI: 10.1007/s10021-020-00486-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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24
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Binet MN, Marchal C, Lipuma J, Geremia RA, Bagarri O, Candaele B, Fraty D, David B, Perigon S, Barbreau V, Mouhamadou B. Plant health status effects on arbuscular mycorrhizal fungi associated with Lavandula angustifolia and Lavandula intermedia infected by Phytoplasma in France. Sci Rep 2020; 10:20305. [PMID: 33219283 PMCID: PMC7679420 DOI: 10.1038/s41598-020-77240-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Accepted: 11/05/2020] [Indexed: 11/09/2022] Open
Abstract
We investigated root communities of arbuscular mycorrhizal fungi (AMF) in relation to lavender (Lavandula angustifolia) and lavandin (Lavandula intermedia) health status from organic and conventional fields affected by Phytoplasma infection. The intensity of root mycorrhizal colonization was significantly different between diseased and healthy plants and was higher in the latter regardless of agricultural practice. This difference was more pronounced in lavender. The root AMF diversity was influenced by the plant health status solely in lavender and only under the conventional practice resulting in an increase in the AMF abundance and richness. The plant health status did not influence the distribution of root AMF communities in lavandin unlike its strong impact in lavender in both agricultural practices. Finally, among the most abundant molecular operational taxonomic units (MOTUs), four different MOTUs for each plant species were significantly abundant in the roots of healthy lavender and lavandin in either agricultural practice. Our study demonstrated that the plant health status influences root colonization and can influence the diversity and distribution of root AMF communities. Its effects vary according to plant species, can be modified by agricultural practices and allow plants to establish symbiosis with specific AMF species.
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Affiliation(s)
- Marie- Noëlle Binet
- Laboratoire d'Écologie Alpine, CNRS UMR 5553, Université Grenoble Alpes, CS 40700, 38058, Grenoble Cedex 09, France
| | - Camille Marchal
- Laboratoire d'Écologie Alpine, CNRS UMR 5553, Université Grenoble Alpes, CS 40700, 38058, Grenoble Cedex 09, France
| | - Justine Lipuma
- MYCOPHYTO, 50 Avenue de la Plaine, 06250, Mougins, France
| | - Roberto A Geremia
- Laboratoire d'Écologie Alpine, CNRS UMR 5553, Université Grenoble Alpes, CS 40700, 38058, Grenoble Cedex 09, France
| | - Olivier Bagarri
- Université Européenne des Senteurs et des Saveurs, Couvent des Cordeliers, 04300, Forcalquier, France
| | - Bert Candaele
- Centre Régionalisé Interprofessionnel d'Expérimentation en Plantes Aromatiques et Médicinales, Lieu-dit Les Quintrands, Route de Volx, 04100, Manosque, France
| | - Delphine Fraty
- Centre Régionalisé Interprofessionnel d'Expérimentation en Plantes Aromatiques et Médicinales, Lieu-dit Les Quintrands, Route de Volx, 04100, Manosque, France
| | - Benjamin David
- MYCOPHYTO, 50 Avenue de la Plaine, 06250, Mougins, France
| | - Sophie Perigon
- Laboratoire d'Écologie Alpine, CNRS UMR 5553, Université Grenoble Alpes, CS 40700, 38058, Grenoble Cedex 09, France
| | - Viviane Barbreau
- Collège Henri Wallon, 17 rue Henri Wallon, 38400, Saint Martin d'Hères, France
| | - Bello Mouhamadou
- Laboratoire d'Écologie Alpine, CNRS UMR 5553, Université Grenoble Alpes, CS 40700, 38058, Grenoble Cedex 09, France.
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25
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Kokkoris V, Lekberg Y, Antunes PM, Fahey C, Fordyce JA, Kivlin SN, Hart MM. Codependency between plant and arbuscular mycorrhizal fungal communities: what is the evidence? THE NEW PHYTOLOGIST 2020; 228:828-838. [PMID: 32452032 DOI: 10.1111/nph.16676] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 04/26/2020] [Indexed: 05/09/2023]
Abstract
That arbuscular mycorrhizal (AM) fungi covary with plant communities is clear, and many papers report nonrandom associations between symbiotic partners. However, these studies do not test the causal relationship, or 'codependency', whereby the composition of one guild affects the composition of the other. Here we outline underlying requirements for codependency, compare important drivers for both plant and AM fungal communities, and assess how host preference - a pre-requisite for codependency - changes across spatiotemporal scales and taxonomic resolution for both plants and AM fungi. We find few examples in the literature designed to test for codependency and those that do have been conducted within plots or mesocosms. Also, while plants and AM fungi respond similarly to coarse environmental filters, most variation remains unexplained, with host identity explaining less than 30% of the variation in AM fungal communities. These results combined question the likelihood of predictable co-occurrence, and therefore evolution of codependency, between plant and AM fungal taxa across locations. We argue that codependency is most likely to occur in homogeneous environments where specific plant - AM fungal pairings have functional consequences for the symbiosis. We end by outlining critical aspects to consider moving forward.
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Affiliation(s)
- Vasilis Kokkoris
- Department of Biology, University of Ottawa, Ottawa, ON, K1N 6N5, Canada
| | - Ylva Lekberg
- MPG Ranch and University of Montana, Missoula, MT, 59833, USA
| | - Pedro M Antunes
- Department of Biology, Algoma University, Sault Ste. Marie, ON, P6A 2G4, Canada
| | - Catherine Fahey
- Department of Biology, Algoma University, Sault Ste. Marie, ON, P6A 2G4, Canada
| | - James A Fordyce
- Ecology and Evolutionary Biology, University of Tennessee, Knoxville, Knoxville, TN, 37996, USA
| | - Stephanie N Kivlin
- Ecology and Evolutionary Biology, University of Tennessee, Knoxville, Knoxville, TN, 37996, USA
| | - Miranda M Hart
- Biology, University of British Columbia Okanagan, Kelowna, BC, V1V 1V7, Canada
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26
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Dueñas JF, Camenzind T, Roy J, Hempel S, Homeier J, Suárez JP, Rillig MC. Moderate phosphorus additions consistently affect community composition of arbuscular mycorrhizal fungi in tropical montane forests in southern Ecuador. THE NEW PHYTOLOGIST 2020; 227:1505-1518. [PMID: 32368801 DOI: 10.1111/nph.16641] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 04/20/2020] [Indexed: 06/11/2023]
Abstract
Anthropogenic atmospheric deposition can increase nutrient supply in the most remote ecosystems, potentially affecting soil biodiversity. Arbuscular mycorrhizal fungal (AMF) communities rapidly respond to simulated soil eutrophication in tropical forests. Yet the limited spatio-temporal extent of such manipulations, together with the often unrealistically high fertilization rates employed, impedes generalization of such responses. We sequenced mixed root AMF communities within a seven year-long fully factorial nitrogen (N) and phosphorus (P) addition experiment, replicated at three tropical montane forests in southern Ecuador with differing environmental characteristics. We hypothesized: strong shifts in community composition and species richness after long-term fertilization, site- and clade-specific responses to N vs P additions depending on local soil fertility and clade life history traits respectively. Fertilization consistently shifted AMF community composition across sites, but only reduced richness of Glomeraceae. Compositional changes were mainly driven by increases in P supply while richness reductions were observed only after combined N and P additions. We conclude that moderate increases of N and P exert a mild but consistent effect on tropical AMF communities. To predict the consequences of these shifts, current results need to be supplemented with experiments that characterize local species-specific AMF functionality.
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Affiliation(s)
- Juan F Dueñas
- Institute of Biology, Freie Universität Berlin, Altensteinstr. 6, Berlin, 14195, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, 14195, Germany
| | - Tessa Camenzind
- Institute of Biology, Freie Universität Berlin, Altensteinstr. 6, Berlin, 14195, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, 14195, Germany
| | - Julien Roy
- Institute of Biology, Freie Universität Berlin, Altensteinstr. 6, Berlin, 14195, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, 14195, Germany
| | - Stefan Hempel
- Institute of Biology, Freie Universität Berlin, Altensteinstr. 6, Berlin, 14195, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, 14195, Germany
| | - Jürgen Homeier
- Plant Ecology, University of Göttingen, Göttingen, 37073, Germany
| | - Juan Pablo Suárez
- Departamento de Ciencias Biológicas, Universidad Técnica Particular de Loja, San Cayetano Alto, Loja, Ecuador
| | - Matthias C Rillig
- Institute of Biology, Freie Universität Berlin, Altensteinstr. 6, Berlin, 14195, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, 14195, Germany
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27
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Slabbert EL, Schweiger O, Wubet T, Kautzner A, Baessler C, Auge H, Roscher C, Knight TM. Scale-dependent impact of land management on above- and belowground biodiversity. Ecol Evol 2020; 10:10139-10149. [PMID: 33005370 PMCID: PMC7520218 DOI: 10.1002/ece3.6675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 04/30/2020] [Accepted: 06/09/2020] [Indexed: 11/10/2022] Open
Abstract
Land management is known to have consequences for biodiversity; however, our synthetic understanding of its effects is limited due to highly variable results across studies, which vary in the focal taxa and spatial grain considered, as well as the response variables reported. Such synthetic knowledge is necessary for management of agroecosystems for high diversity and function.To fill this knowledge gap, we investigated the importance of scale-dependent effects of land management (LM) (pastures vs. meadows), on plant and soil microbe diversity (fungi and bacteria) across 5 study sites in Central Germany. Analyses included diversity partitioning of species richness and related biodiversity components (i.e., density of individuals, species-abundance distribution, and spatial aggregation) at two spatial grains (α- and γ-scale, 1 m2 and 16 km2, respectively).Our results show scale-dependent patterns in response to LM to be the norm rather than the exception and highlight the importance of measuring species richness and its underlying components at multiple spatial grains.Our outcomes provide new insight to the complexity of scale-dependent responses within and across taxonomic groups. They suggest that, despite close associations between taxa, LM responses are not easily extrapolated across multiple spatial grains and taxa. Responses of biodiversity to LM are often driven by changes to evenness and spatial aggregation, rather than by changes in individual density. High-site specificity of LM effects might be due to a variety of context-specific factors, such as historic land management, identity of grazers, and grazing regime. Synthesis and applications: Our results suggest that links between taxa are not necessarily strong enough to allow for generalization of biodiversity patterns. These findings highlight the importance of considering multiple taxa and spatial grains when investigating LM responses, while promoting management practices that do the same and are tailored to local and regional conditions.
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Affiliation(s)
- Eleonore L. Slabbert
- Department of Community EcologyHelmholtz Centre for Environmental Research‐ UFZHalle (Saale)Germany
- Institute of BiologyMartin Luther University Halle‐WittenbergHalle (Saale)Germany
| | - Oliver Schweiger
- Department of Community EcologyHelmholtz Centre for Environmental Research‐ UFZHalle (Saale)Germany
| | - Tesfaye Wubet
- Department of Community EcologyHelmholtz Centre for Environmental Research‐ UFZHalle (Saale)Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐LeipzigLeipzigGermany
| | - Antje Kautzner
- Department of Community EcologyHelmholtz Centre for Environmental Research‐ UFZHalle (Saale)Germany
| | - Cornelia Baessler
- Department of Community EcologyHelmholtz Centre for Environmental Research‐ UFZHalle (Saale)Germany
| | - Harald Auge
- Department of Community EcologyHelmholtz Centre for Environmental Research‐ UFZHalle (Saale)Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐LeipzigLeipzigGermany
| | - Christiane Roscher
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐LeipzigLeipzigGermany
- Department of Physiological DiversityHelmholtz Centre for Environmental Research‐ UFZLeipzigGermany
| | - Tiffany M. Knight
- Department of Community EcologyHelmholtz Centre for Environmental Research‐ UFZHalle (Saale)Germany
- Institute of BiologyMartin Luther University Halle‐WittenbergHalle (Saale)Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐LeipzigLeipzigGermany
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28
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Song F, Bai F, Wang J, Wu L, Jiang Y, Pan Z. Influence of Citrus Scion/Rootstock Genotypes on Arbuscular Mycorrhizal Community Composition under Controlled Environment Condition. PLANTS 2020; 9:plants9070901. [PMID: 32708770 PMCID: PMC7412222 DOI: 10.3390/plants9070901] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 07/13/2020] [Accepted: 07/14/2020] [Indexed: 01/01/2023]
Abstract
Citrus is vegetatively propagated by grafting for commercial production, and most rootstock cultivars of citrus have scarce root hairs, thus heavily relying on mutualistic symbiosis with arbuscular mycorrhizal fungi (AMF) for mineral nutrient uptake. However, the AMF community composition, and its differences under different citrus scion/rootstock genotypes, were largely unknown. In this study, we investigated the citrus root-associated AMF diversity and richness, and assessed the influence of citrus scion/rootstock genotypes on the AMF community composition in a controlled condition, in order to exclude interferences from environmental factors and agricultural practices. As a result, a total of 613,408 Glomeromycota tags were detected in the citrus roots, and 46 AMF species were annotated against the MAARJAM database. Of these, 39 species belonged to Glomus, indicating a dominant role of the Glomus AMF in the symbiosis with citrus. PCoA analysis indicated that the AMF community’s composition was significantly impacted by both citrus scion and rootstock genotypes, but total samples were clustered according to rootstock genotype rather than scion genotype. In addition, AMF α diversity was significantly affected merely by rootstock genotype. Thus, rootstock genotype might exert a greater impact on the AMF community than scion genotype. Taken together, this study provides a comprehensive insight into the AMF community in juvenile citrus plants, and reveals the important effects of citrus genotype on AMF community composition.
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Affiliation(s)
- Fang Song
- Institute of Fruit and Tea, Hubei Academy of Agricultural Sciences, Wuhan 430064, China
| | - Fuxi Bai
- Institute of Fruit and Tea, Hubei Academy of Agricultural Sciences, Wuhan 430064, China
| | - Juanjuan Wang
- Institute National Agro-Technical Extension and Service Center (NATESC), Ministry of Agriculture, Beijing 100000, China
| | - Liming Wu
- Institute of Fruit and Tea, Hubei Academy of Agricultural Sciences, Wuhan 430064, China
| | - Yingchun Jiang
- Institute of Fruit and Tea, Hubei Academy of Agricultural Sciences, Wuhan 430064, China
| | - Zhiyong Pan
- College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
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29
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Vahter T, Bueno CG, Davison J, Herodes K, Hiiesalu I, Kasari‐Toussaint L, Oja J, Olsson PA, Sepp S, Zobel M, Vasar M, Öpik M. Co‐introduction of native mycorrhizal fungi and plant seeds accelerates restoration of post‐mining landscapes. J Appl Ecol 2020. [DOI: 10.1111/1365-2664.13663] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Tanel Vahter
- Institute of Ecology and Earth Sciences University of Tartu Tartu Estonia
| | | | - John Davison
- Institute of Ecology and Earth Sciences University of Tartu Tartu Estonia
| | - Koit Herodes
- Institute of Chemistry University of Tartu Tartu Estonia
| | - Inga Hiiesalu
- Institute of Ecology and Earth Sciences University of Tartu Tartu Estonia
| | | | - Jane Oja
- Institute of Ecology and Earth Sciences University of Tartu Tartu Estonia
| | - Pål Axel Olsson
- Biodiversity Department of Biology Lund University Lund Sweden
| | - Siim‐Kaarel Sepp
- Institute of Ecology and Earth Sciences University of Tartu Tartu Estonia
| | - Martin Zobel
- Zoology Department College of Science King Saud University Riyadh Saudi Arabia
- Department of Botany University of Tartu Tartu Estonia
| | - Martti Vasar
- Institute of Ecology and Earth Sciences University of Tartu Tartu Estonia
| | - Maarja Öpik
- Institute of Ecology and Earth Sciences University of Tartu Tartu Estonia
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30
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Davison J, García de León D, Zobel M, Moora M, Bueno CG, Barceló M, Gerz M, León D, Meng Y, Pillar VD, Sepp SK, Soudzilovaskaia NA, Tedersoo L, Vaessen S, Vahter T, Winck B, Öpik M. Plant functional groups associate with distinct arbuscular mycorrhizal fungal communities. THE NEW PHYTOLOGIST 2020; 226:1117-1128. [PMID: 31943225 DOI: 10.1111/nph.16423] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 12/24/2019] [Indexed: 05/26/2023]
Abstract
The benefits of the arbuscular mycorrhizal (AM) symbiosis between plants and fungi are modulated by the functional characteristics of both partners. However, it is unknown to what extent functionally distinct groups of plants naturally associate with different AM fungi. We reanalysed 14 high-throughput sequencing data sets describing AM fungal communities associating with plant individuals (2427) belonging to 297 species. We examined how root-associating AM fungal communities varied between plants with different growth forms, photosynthetic pathways, CSR (competitor, stress-tolerator, ruderal) strategies, mycorrhizal statuses and N-fixing statuses. AM fungal community composition differed in relation to all studied plant functional groups. Grasses, C4 and nonruderal plants were characterised by high AM fungal alpha diversity, while C4 , ruderal and obligately mycorrhizal plants were characterised by high beta diversity. The phylogenetic diversity of AM fungi, a potential surrogate for functional diversity, was higher among forbs than other plant growth forms. Putatively ruderal (previously cultured) AM fungi were disproportionately associated with forbs and ruderal plants. There was phylogenetic correlation among AM fungi in the degree of association with different plant growth forms and photosynthetic pathways. Associated AM fungal communities constitute an important component of plant ecological strategies. Functionally different plants associate with distinct AM fungal communities, linking mycorrhizal associations with functional diversity in ecosystems.
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Affiliation(s)
- John Davison
- Institute of Ecology and Earth Sciences, University of Tartu, Lai 40, Tartu, 51005, Estonia
| | - David García de León
- Institute of Ecology and Earth Sciences, University of Tartu, Lai 40, Tartu, 51005, Estonia
- Department of Life Sciences, University of Alcalá, Alcalá de Henares, 28805, Spain
| | - Martin Zobel
- Institute of Ecology and Earth Sciences, University of Tartu, Lai 40, Tartu, 51005, Estonia
- College of Science, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Mari Moora
- Institute of Ecology and Earth Sciences, University of Tartu, Lai 40, Tartu, 51005, Estonia
| | - C Guillermo Bueno
- Institute of Ecology and Earth Sciences, University of Tartu, Lai 40, Tartu, 51005, Estonia
| | - Milagros Barceló
- Environmental Biology Department, Institute of Environmental Sciences Leiden University, Einsteinweg 2, Leiden, 2333CC, the Netherlands
| | - Maret Gerz
- Institute of Ecology and Earth Sciences, University of Tartu, Lai 40, Tartu, 51005, Estonia
| | - Daniela León
- Institute of Ecology and Earth Sciences, University of Tartu, Lai 40, Tartu, 51005, Estonia
| | - Yiming Meng
- Institute of Ecology and Earth Sciences, University of Tartu, Lai 40, Tartu, 51005, Estonia
| | - Valerio D Pillar
- Department of Ecology, Universidade Federal do Rio Grande do Sul, 9500, Porto Alegre, 91501-970, Brazil
| | - Siim-Kaarel Sepp
- Institute of Ecology and Earth Sciences, University of Tartu, Lai 40, Tartu, 51005, Estonia
| | - Nadejda A Soudzilovaskaia
- Environmental Biology Department, Institute of Environmental Sciences Leiden University, Einsteinweg 2, Leiden, 2333CC, the Netherlands
| | - Leho Tedersoo
- Natural History Museum, University of Tartu, Vanemuise 46, Tartu, 51014, Estonia
| | - Stijn Vaessen
- Environmental Biology Department, Institute of Environmental Sciences Leiden University, Einsteinweg 2, Leiden, 2333CC, the Netherlands
| | - Tanel Vahter
- Institute of Ecology and Earth Sciences, University of Tartu, Lai 40, Tartu, 51005, Estonia
| | - Bruna Winck
- Department of Ecology, Universidade Federal do Rio Grande do Sul, 9500, Porto Alegre, 91501-970, Brazil
| | - Maarja Öpik
- Institute of Ecology and Earth Sciences, University of Tartu, Lai 40, Tartu, 51005, Estonia
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31
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Li X, Xu M, Li X, Christie P, Wagg C, Zhang J. Linkages between changes in plant and mycorrhizal fungal community composition at high versus low elevation in alpine ecosystems. ENVIRONMENTAL MICROBIOLOGY REPORTS 2020; 12:229-240. [PMID: 32052588 DOI: 10.1111/1758-2229.12827] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 01/06/2020] [Accepted: 01/08/2020] [Indexed: 05/09/2023]
Abstract
Arbuscular mycorrhizal fungi (AMF) play an important role in maintaining plant diversity and productivity in grassland ecosystems. However, very few studies have investigated how AMF and plant communities co-vary between contrasting environments in natural ecosystems. Intensive sampling (50 soil samples) was conducted in natural open grasslands at both 3570 and 4556 m on Mount Segrila on the Southeast Tibetan Plateau. We used 454-pyrosequencing to investigate soil AMF communities and to explore relationships between AMF diversity and plant richness, productivity and community composition. AMF diversity was negatively correlated with plant richness at 3570 m but positively at 4556 m. Differences in AMF community composition between elevations were attributable to plant community composition, soil pH and available phosphorus concentration. The AMF community was more phylogenetically clustered at the higher elevation than the lower elevation. However, greater phylogenetic clustering (under dispersion) of AMF communities at the two elevations was positively correlated with above-ground biomass. Our results indicate that plant community composition and environmental filtering are the primary drivers structuring the AMF community. Phylogenetic relatedness may be important in explaining the function of AMF communities in alpine ecosystems.
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Affiliation(s)
- Xiaoliang Li
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of Agriculture, Haikou, 571101, China
| | - Meng Xu
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
| | - Xiaolin Li
- College of Resources and Environmental Sciences, Centre for Resources, Environment and Food Security, China Agricultural University, Beijing, 100193, China
| | - Peter Christie
- College of Resources and Environmental Sciences, Centre for Resources, Environment and Food Security, China Agricultural University, Beijing, 100193, China
| | - Cameron Wagg
- Fredericton Research and Development Center, Agriculture and Agri-Food Canada, Fredericton, New Brunswick, E3B4Z7, Canada
| | - Junling Zhang
- College of Resources and Environmental Sciences, Centre for Resources, Environment and Food Security, China Agricultural University, Beijing, 100193, China
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32
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Goldmann K, Boeddinghaus RS, Klemmer S, Regan KM, Heintz‐Buschart A, Fischer M, Prati D, Piepho H, Berner D, Marhan S, Kandeler E, Buscot F, Wubet T. Unraveling spatiotemporal variability of arbuscular mycorrhizal fungi in a temperate grassland plot. Environ Microbiol 2020; 22:873-888. [PMID: 31087598 PMCID: PMC7065148 DOI: 10.1111/1462-2920.14653] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Revised: 05/09/2019] [Accepted: 05/10/2019] [Indexed: 12/11/2022]
Abstract
Soils provide a heterogeneous environment varying in space and time; consequently, the biodiversity of soil microorganisms also differs spatially and temporally. For soil microbes tightly associated with plant roots, such as arbuscular mycorrhizal fungi (AMF), the diversity of plant partners and seasonal variability in trophic exchanges between the symbionts introduce additional heterogeneity. To clarify the impact of such heterogeneity, we investigated spatiotemporal variation in AMF diversity on a plot scale (10 × 10 m) in a grassland managed at low intensity in southwest Germany. AMF diversity was determined using 18S rDNA pyrosequencing analysis of 360 soil samples taken at six time points within a year. We observed high AMF alpha- and beta-diversity across the plot and at all investigated time points. Relationships were detected between spatiotemporal variation in AMF OTU richness and plant species richness, root biomass, minimal changes in soil texture and pH. The plot was characterized by high AMF turnover rates with a positive spatiotemporal relationship for AMF beta-diversity. However, environmental variables explained only ≈20% of the variation in AMF communities. This indicates that the observed spatiotemporal richness and community variability of AMF was largely independent of the abiotic environment, but related to plant properties and the cooccurring microbiome.
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Affiliation(s)
- Kezia Goldmann
- Department of Soil EcologyUFZ – Helmholtz Centre for Environmental ResearchTheodor‐Lieser‐Straße 4, 06120Halle (Saale)Germany
| | - Runa S. Boeddinghaus
- Department of Soil Biology, Institute of Soil Science and Land EvaluationUniversity of HohenheimEmil‐Wolff‐Straße 27, 70599StuttgartGermany
| | - Sandra Klemmer
- Department of Soil EcologyUFZ – Helmholtz Centre for Environmental ResearchTheodor‐Lieser‐Straße 4, 06120Halle (Saale)Germany
| | - Kathleen M. Regan
- Department of Soil Biology, Institute of Soil Science and Land EvaluationUniversity of HohenheimEmil‐Wolff‐Straße 27, 70599StuttgartGermany
- Ecosystems CenterMarine Biological Laboratory, 7 MBL Street, Woods Hole, MA, 02543, USA
| | - Anna Heintz‐Buschart
- Department of Soil EcologyUFZ – Helmholtz Centre for Environmental ResearchTheodor‐Lieser‐Straße 4, 06120Halle (Saale)Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐LeipzigDeutscher Platz 5e, 04103LeipzigGermany
| | - Markus Fischer
- Institute of Plant Sciences and Botanical GardenUniversity of BernAltenbergrain 21, 3013BernSwitzerland
| | - Daniel Prati
- Institute of Plant Sciences and Botanical GardenUniversity of BernAltenbergrain 21, 3013BernSwitzerland
| | - Hans‐Peter Piepho
- Institute of Crop Science, Biostatistics UnitUniversity of HohenheimFruwirthstraße 23, 70599StuttgartGermany
| | - Doreen Berner
- Department of Soil Biology, Institute of Soil Science and Land EvaluationUniversity of HohenheimEmil‐Wolff‐Straße 27, 70599StuttgartGermany
| | - Sven Marhan
- Department of Soil Biology, Institute of Soil Science and Land EvaluationUniversity of HohenheimEmil‐Wolff‐Straße 27, 70599StuttgartGermany
| | - Ellen Kandeler
- Department of Soil Biology, Institute of Soil Science and Land EvaluationUniversity of HohenheimEmil‐Wolff‐Straße 27, 70599StuttgartGermany
| | - François Buscot
- Department of Soil EcologyUFZ – Helmholtz Centre for Environmental ResearchTheodor‐Lieser‐Straße 4, 06120Halle (Saale)Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐LeipzigDeutscher Platz 5e, 04103LeipzigGermany
| | - Tesfaye Wubet
- Department of Soil EcologyUFZ – Helmholtz Centre for Environmental ResearchTheodor‐Lieser‐Straße 4, 06120Halle (Saale)Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐LeipzigDeutscher Platz 5e, 04103LeipzigGermany
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Li J, Li C, Kou Y, Yao M, He Z, Li X. Distinct mechanisms shape soil bacterial and fungal co-occurrence networks in a mountain ecosystem. FEMS Microbiol Ecol 2020; 96:5766225. [DOI: 10.1093/femsec/fiaa030] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Accepted: 02/27/2020] [Indexed: 01/09/2023] Open
Abstract
ABSTRACT
Understanding microbial network assembly is a promising way to predict potential impacts of environmental changes on ecosystem functions. Yet, soil microbial network assembly in mountain ecosystems and its underlying mechanisms remain elusive. Here, we characterized soil microbial co-occurrence networks across 12 altitudinal sites in Mountain Gongga. Despite differences in habitats, soil bacterial networks separated into two different clusters by altitude, namely the lower and higher altitudes, while fungi did not show such a pattern. Bacterial networks encompassed more complex and closer relationships at the lower altitudes, while fungi had closer relationships at the higher altitudes, which could be attributed to niche differentiation caused by high variations in soil environments and plant communities. Both abiotic and biotic factors (e.g. soil pH and bacterial community composition) shaped bacterial networks. However, biotic factors played more important roles than the measured abiotic factors for fungal network assembly. Further analyses suggest that multiple mechanisms including niche overlap/differentiation, cross-feeding and competition between microorganisms could play important roles in shaping soil microbial networks. This study reveals microbial co-occurrence networks in response to different ecological factors, which provides important insights into our comprehensive understanding of microbial network assembly and their functional potentials in mountain ecosystems.
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Affiliation(s)
- Jiabao Li
- Key Laboratory of Environmental and Applied Microbiology, Chinese Academy of Sciences and Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China 610041
| | - Chaonan Li
- Key Laboratory of Environmental and Applied Microbiology, Chinese Academy of Sciences and Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China 610041
| | - Yongping Kou
- Key Laboratory of Environmental and Applied Microbiology, Chinese Academy of Sciences and Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China 610041
| | - Minjie Yao
- Key Laboratory of Environmental and Applied Microbiology, Chinese Academy of Sciences and Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China 610041
| | - Zhili He
- Environmental Microbiomics Research Center, School of Environmental Science and Engineering, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-Sen University, Guangzhou, China 510006
| | - Xiangzhen Li
- Key Laboratory of Environmental and Applied Microbiology, Chinese Academy of Sciences and Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China 610041
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Jia Y, Shi Z, Chen Z, Walder F, Tian C, Feng G. Soil moisture threshold in controlling above- and belowground community stability in a temperate desert of Central Asia. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 703:134650. [PMID: 31731166 DOI: 10.1016/j.scitotenv.2019.134650] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 09/23/2019] [Indexed: 06/10/2023]
Abstract
Terrestrial ecosystems are composed of above- and belowground community, which have been researched separately for many years even though the two subsystems clearly interact with each other. And it is still less understood how the above- and belowground ecosystems co-response to the changing precipitation in this changing world. To understand the interdependence and co-responses of plant-arbuscular mycorrhizal (AM) fungi symbioses to this facet of climate change, we examined the plant and AM fungal diversity and abundance along both, a transect from east to west of the desert which exhibits an annual precipitation gradient and a topographical transect of a typical sand dune which exhibits a gradient of soil moisture but equal precipitation, in a temperate desert in Central Asia. The results showed that community structure and biomass of plants and AM fungi along both transects were positively correlated and related to either precipitation or soil moisture, strongly support the Habitat Hypothesis. We found a soil moisture threshold between 0.64% and 0.86%, below which the variability of plant coverage, plant species richness, spore density and Shannon-wiener diversity index of both plant and AM fungal communities increased sharply yielding in an average threshold of 0.73% for the stability of plant-AMF symbioses. Our results highlight that increasing precipitation contributes to above- and belowground, and particularly to the overall AM-symbiotic stability in a desert ecosystem. This emphasizes the susceptibility and the importance plant-AMF symbioses for ecosystem stability to climate changes across different scales.
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Affiliation(s)
- Yangyang Jia
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Zhaoyong Shi
- College of Agriculture, Henan University of Science and Technology, Luoyang 471003, China
| | - Zhichao Chen
- Henan Polytechnic University, Jiaozuo 454003, China
| | - Florian Walder
- Plant-Soil-Interactions, Research Division Agroecology and Environment, Agroscope, Zurich 8046, Switzerland
| | - Changyan Tian
- Xinjiang Institute Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
| | - Gu Feng
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China.
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Šmilauer P, Košnar J, Kotilínek M, Šmilauerová M. Contrasting effects of host identity, plant community, and local species pool on the composition and colonization levels of arbuscular mycorrhizal fungal community in a temperate grassland. THE NEW PHYTOLOGIST 2020; 225:461-473. [PMID: 31408907 DOI: 10.1111/nph.16112] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Accepted: 08/06/2019] [Indexed: 06/10/2023]
Abstract
Arbuscular mycorrhizal fungi (AMFs) are important plant symbionts, but we know little about the effects of plant taxonomic identity or functional group on the AMF community composition. To examine the effects of the surrounding plant community, of the host, and of the AMF pool on the AMF community in plant roots, we manipulated plant community composition in a long-term field experiment. Within four types of manipulated grassland plots, seedlings of eight grassland plant species were planted for 12 wk, and AMFs in their roots were quantified. Additionally, we characterized the AMF community of individual plots (as their AMF pool) and quantified plot abiotic conditions. The largest determinant of AMF community composition was the pool of available AMFs, varying at metre scale due to changing soil conditions. The second strongest predictor was the host functional group. The differences between grasses and dicotyledonous forbs in AMF community variation and diversity were much larger than the differences among species within those groups. High cover of forbs in the surrounding plant community had a strong positive effect on AMF colonization intensity in grass hosts. Using a manipulative field experiment enabled us to demonstrate direct causal effects of plant host and surrounding vegetation.
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Affiliation(s)
- Petr Šmilauer
- Faculty of Science, University of South Bohemia, Branišovská 1760, 370 05, České Budějovice, Czech Republic
| | - Jiří Košnar
- Faculty of Science, University of South Bohemia, Branišovská 1760, 370 05, České Budějovice, Czech Republic
| | - Milan Kotilínek
- Faculty of Science, University of South Bohemia, Branišovská 1760, 370 05, České Budějovice, Czech Republic
| | - Marie Šmilauerová
- Faculty of Science, University of South Bohemia, Branišovská 1760, 370 05, České Budějovice, Czech Republic
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36
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Lu N, Xu X, Wang P, Zhang P, Ji B, Wang X. Succession in arbuscular mycorrhizal fungi can be attributed to a chronosequence of Cunninghamia lanceolata. Sci Rep 2019; 9:18057. [PMID: 31792242 PMCID: PMC6889488 DOI: 10.1038/s41598-019-54452-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 11/14/2019] [Indexed: 02/02/2023] Open
Abstract
Arbuscular mycorrhizal (AM) fungi play an important role in plant-fungi communities. It remains a central question of how the AM fungal community changes as plants grow. To establish an understanding of AM fungal community dynamics associated with Chinese fir, Chinese fir with five different growth stages were studied and 60 root samples were collected at the Jiangle National Forestry Farm, Fujian Province. A total of 76 AM fungal operational taxonomic units (OTUs) were identified by high-throughput sequencing on an Illumina Miseq platform. The genera covered by OTUs were Glomus, Archaeospora, Acaulospora, Gigaspora and Diversispora. Glomus dominated the community in the whole stage. The number and composition of OTUs varied along with the host plant growth. The number of OTUs showed an inverted V-shaped change with the host plant age, and the maximum occurred in 23-year. Overall, the basic species diversity and richness in this study were stable. Non-metric multi-dimensional scaling (NMDS) analysis based on bray-curtis distance revealed that there were remarkable differentiations between the 9-year and other stages. Besides, AM fungal community in 32-year had a significant difference with that of 23-year, while no significant difference with that of 45-year, suggesting that 32-year may be a steady stage for AM fungi associated with Chinese fir. The cutting age in 32-year may be the most favorable for microbial community. The pH, total N, total P, total K, available N, available P, available K, organic matter and Mg varied as the Chinese fir grows. According to Mantel test and redundancy analysis, available N, available P, K and Mg could exert significant influence on AM fungal communities, and these variables explained 31% of variance in the composition of AM fungal communities.
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Affiliation(s)
- Nini Lu
- College of Forestry, Beijing Forestry University, Beijing, 100083, China
- Key Laboratory for Silviculture and Conservation Joint-constructed by Province and Ministry of Education, Beijing Forestry University, Beijing, 100083, China
| | - Xuelei Xu
- College of Forestry, Beijing Forestry University, Beijing, 100083, China
- Key Laboratory for Silviculture and Conservation Joint-constructed by Province and Ministry of Education, Beijing Forestry University, Beijing, 100083, China
| | - Ping Wang
- College of Forestry, Beijing Forestry University, Beijing, 100083, China
- Key Laboratory for Silviculture and Conservation Joint-constructed by Province and Ministry of Education, Beijing Forestry University, Beijing, 100083, China
| | - Peng Zhang
- College of Forestry, Beijing Forestry University, Beijing, 100083, China
- Key Laboratory for Silviculture and Conservation Joint-constructed by Province and Ministry of Education, Beijing Forestry University, Beijing, 100083, China
- Experimental Forest Farm, Beijing Forestry University, Beijing, 100095, China
| | - Baoming Ji
- College of Forestry, Beijing Forestry University, Beijing, 100083, China
| | - Xinjie Wang
- College of Forestry, Beijing Forestry University, Beijing, 100083, China.
- Key Laboratory for Silviculture and Conservation Joint-constructed by Province and Ministry of Education, Beijing Forestry University, Beijing, 100083, China.
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Fincheira P, Tortella G, Duran N, Seabra AB, Rubilar O. Current applications of nanotechnology to develop plant growth inducer agents as an innovation strategy. Crit Rev Biotechnol 2019; 40:15-30. [DOI: 10.1080/07388551.2019.1681931] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Paola Fincheira
- Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente (CIBAMA), Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Temuco, Chile
| | - Gonzalo Tortella
- Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente (CIBAMA), Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Temuco, Chile
- Chemical Engineering Department, Universidad de La Frontera, Temuco, Chile
- Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Temuco, Chile
| | - Nelson Duran
- Institute of Biology, Universidade Estadual de Campinas, Campinas, SP, Brasil
- NanoBioss, Chemistry Institute, University of Campinas, Campinas, SP, Brazil
| | - Amedea B. Seabra
- Center for Natural and Human Sciences, Universidade Federal Do ABC, Santo André, SP, Brazil
- Nanomedicine Research Unit (Nanomed), Federal University of ABC (UFABC), Santo André, SP, Brazil
| | - Olga Rubilar
- Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente (CIBAMA), Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Temuco, Chile
- Chemical Engineering Department, Universidad de La Frontera, Temuco, Chile
- Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Temuco, Chile
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Noreika N, Helm A, Öpik M, Jairus T, Vasar M, Reier Ü, Kook E, Riibak K, Kasari L, Tullus H, Tullus T, Lutter R, Oja E, Saag A, Randlane T, Pärtel M. Forest biomass, soil and biodiversity relationships originate from biogeographic affinity and direct ecological effects. OIKOS 2019. [DOI: 10.1111/oik.06693] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Norbertas Noreika
- Inst. of Ecology and Earth Sciences, Univ. of Tartu Lai 40 EE‐51005 Tartu Estonia
- Dept of Ecology, Swedish Univ. of Agricultural Sciences Uppsala Sweden
| | - Aveliina Helm
- Inst. of Ecology and Earth Sciences, Univ. of Tartu Lai 40 EE‐51005 Tartu Estonia
| | - Maarja Öpik
- Inst. of Ecology and Earth Sciences, Univ. of Tartu Lai 40 EE‐51005 Tartu Estonia
| | - Teele Jairus
- Inst. of Ecology and Earth Sciences, Univ. of Tartu Lai 40 EE‐51005 Tartu Estonia
| | - Martti Vasar
- Inst. of Ecology and Earth Sciences, Univ. of Tartu Lai 40 EE‐51005 Tartu Estonia
| | - Ülle Reier
- Inst. of Ecology and Earth Sciences, Univ. of Tartu Lai 40 EE‐51005 Tartu Estonia
| | - Ene Kook
- Inst. of Ecology and Earth Sciences, Univ. of Tartu Lai 40 EE‐51005 Tartu Estonia
| | - Kersti Riibak
- Inst. of Ecology and Earth Sciences, Univ. of Tartu Lai 40 EE‐51005 Tartu Estonia
| | - Liis Kasari
- Inst. of Ecology and Earth Sciences, Univ. of Tartu Lai 40 EE‐51005 Tartu Estonia
| | - Hardi Tullus
- Inst. of Forestry and Rural Engineering, Estonian Univ. of Life Sciences Tartu Estonia
| | - Tea Tullus
- Inst. of Forestry and Rural Engineering, Estonian Univ. of Life Sciences Tartu Estonia
| | - Reimo Lutter
- Inst. of Forestry and Rural Engineering, Estonian Univ. of Life Sciences Tartu Estonia
| | - Ede Oja
- Inst. of Ecology and Earth Sciences, Univ. of Tartu Lai 40 EE‐51005 Tartu Estonia
| | - Andres Saag
- Inst. of Ecology and Earth Sciences, Univ. of Tartu Lai 40 EE‐51005 Tartu Estonia
| | - Tiina Randlane
- Inst. of Ecology and Earth Sciences, Univ. of Tartu Lai 40 EE‐51005 Tartu Estonia
| | - Meelis Pärtel
- Inst. of Ecology and Earth Sciences, Univ. of Tartu Lai 40 EE‐51005 Tartu Estonia
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Neuenkamp L, Zobel M, Lind E, Gerz M, Moora M. Arbuscular mycorrhizal fungal community composition determines the competitive response of two grassland forbs. PLoS One 2019; 14:e0219527. [PMID: 31291331 PMCID: PMC6620016 DOI: 10.1371/journal.pone.0219527] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 06/25/2019] [Indexed: 01/08/2023] Open
Abstract
We performed a greenhouse experiment to assess how differences in AM fungal community composition affect competitive response of grassland plant species. We used a full factorial design to determine how inoculation with natural AM fungal communities from different habitats in Western Estonia affects the growth response of two grassland forbs (Leontodon hispidus L., Plantago lanceolata L.) to competition with a dominant grass (Festuca rubra L.). We used AM fungal inocula that were known to differ in AM fungal diversity and composition: more diverse AM fungal communities from open grasslands and less diverse AM fungal communities from former grassland densely overgrown by pines (young pine forest). The presence of AM fungi balanced competition between forb and grass species, by enhancing competitive response of the forbs. The magnitude of this effect was dependent on forb species identity and on the origin of the AM fungal inoculum in the soil. The grassland inoculum enhanced the competitive response of the forb species more effectively than the forest inoculum, but inoculum-specific competitive responses varied according to the habitat preference of the forb species. Our findings provide evidence that composition and diversity of natural AM fungal communities, as well as co-adaptation of plant hosts and AM-fungal communities to local habitat conditions, can determine plant-plant interactions and thus ultimately influence plant community structure in nature.
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Affiliation(s)
- Lena Neuenkamp
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
- Institute of Plant Sciences, University of Bern, Bern, Switzerland
| | - Martin Zobel
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
| | - Eva Lind
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
| | - Maret Gerz
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
| | - Mari Moora
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
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Wang Z, Jiang Y, Deane DC, He F, Shu W, Liu Y. Effects of host phylogeny, habitat and spatial proximity on host specificity and diversity of pathogenic and mycorrhizal fungi in a subtropical forest. THE NEW PHYTOLOGIST 2019; 223:462-474. [PMID: 30861145 DOI: 10.1111/nph.15786] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 03/04/2019] [Indexed: 05/04/2023]
Abstract
Soil plant-pathogenic (PF) and mycorrhizal fungi (MF) are both important in maintaining plant diversity, for example via host-specialized effects. However, empirical knowledge on the degree of host specificity and possible factors affecting the fungal assemblages is lacking. We identified PF and MF in fine roots of 519 individuals across 45 subtropical tree species in southern China in order to quantify the importance of host phylogeny (including via its effects on functional traits), habitat and space in determining fungal communities. We also compared host specificity in PF and MF at different host-phylogenetic scales. In both PF and MF, host phylogeny independently accounted for > 19% of the variation in fungal richness and composition, whereas environmental and spatial factors each explained no more than 4% of the variation. Over 77% of the variation explained by phylogeny was attributable to covariation in plant functional traits. Host specificity was phylogenetically scale-dependent, being stronger in PF than in MF at low host-phylogenetic scales (e.g. within genus) but similar at larger scales. Our study suggests that host-phylogenetic effects dominate the assembly of both PF and MF communities, resulting from phylogenetically clustered plant traits. The scale-dependent host specificity implies that PF were specialized at lower-level and MF at higher-level host taxa.
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Affiliation(s)
- Zihui Wang
- ECNU-Alberta Joint Lab for Biodiversity Study, Tiantong Forest Ecosystem National Observation and Research Station, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, 200241, China
- School of Life Sciences, Sun Yat-sen University, Guangzhou, 510271, China
| | - Yuan Jiang
- School of Life Sciences, Sun Yat-sen University, Guangzhou, 510271, China
| | - David C Deane
- Department of Renewable Resources, University of Alberta, Edmonton, AB, T6G 2H1, Canada
| | - Fangliang He
- ECNU-Alberta Joint Lab for Biodiversity Study, Tiantong Forest Ecosystem National Observation and Research Station, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, 200241, China
- Department of Renewable Resources, University of Alberta, Edmonton, AB, T6G 2H1, Canada
| | - Wensheng Shu
- School of Life Sciences, South China Normal University, Guangzhou, China
| | - Yu Liu
- ECNU-Alberta Joint Lab for Biodiversity Study, Tiantong Forest Ecosystem National Observation and Research Station, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, 200241, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China
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41
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Silva-Flores P, Aguilar A, Dibán MJ, Mujica MI. Mycorrhizas in the South American Mediterranean-Type Ecosystem: Chilean Matorral. Fungal Biol 2019. [DOI: 10.1007/978-3-030-15228-4_14] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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42
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Peña-Venegas CP, Vasco-Palacios AM. Endo- and Ectomycorrhizas in Tropical Ecosystems of Colombia. Fungal Biol 2019. [DOI: 10.1007/978-3-030-15228-4_6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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43
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Martin FM, Harrison MJ, Lennon S, Lindahl B, Öpik M, Polle A, Requena N, Selosse MA. Cross-scale integration of mycorrhizal function. THE NEW PHYTOLOGIST 2018; 220:941-946. [PMID: 30408219 DOI: 10.1111/nph.15493] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Affiliation(s)
- Francis M Martin
- INRA, Université de Lorraine, UMR Interactions Arbres/Micro-Organismes, INRA-Centre Grand Est, Champenoux, 54280, France
| | | | - Sarah Lennon
- New Phytologist Central Office, Bailrigg House, Lancaster University, Lancaster, LA1 4YE, UK
| | - Björn Lindahl
- Department of Soil and Environment, Swedish University of Agricultural Sciences, Box 7014, Uppsala, SE-750 07, Sweden
| | - Maarja Öpik
- Department of Botany, Institute of Ecology and Earth Sciences, 40 Lai St., Tartu, 51005, Estonia
| | - Andrea Polle
- Forest Botany and Tree Physiology, University of Goettingen, Goettingen, 37077, Germany
| | - Natalia Requena
- Molecular Phytopathology Department, Karlsruhe Institute of Technology, Fritz Haber-Weg 4, Geb. 30.43, 2. OG, Karlsruhe, D-76131, Germany
| | - Marc-André Selosse
- Département Systématique et Evolution, Muséum national d'Histoire naturelle, UMR 7205 ISYEB, CP 50, 45 rue Buffon, Paris, 75005, France
- Faculty of Biology, University of Gdańsk, ul. Wita Stwosza 59, 80-308, Gdańsk, Poland
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Hempel S. Passengers and drivers of arbuscular mycorrhizal fungal communities at different scales. THE NEW PHYTOLOGIST 2018; 220:952-953. [PMID: 30408218 DOI: 10.1111/nph.15139] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Affiliation(s)
- Stefan Hempel
- Institut für Biologie, Ökologie der Pflanzen, Freie Universität Berlin, Berlin, Germany
- Berlin Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, Germany
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Arbuscular mycorrhizal fungal communities in tropical rain forest are resilient to slash-and-burn agriculture. JOURNAL OF TROPICAL ECOLOGY 2018. [DOI: 10.1017/s0266467418000184] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Abstract:Certain forestry and agricultural practices are known to affect arbuscular mycorrhizal (AM) fungal communities, but the effects of deforestation – including slash-and-burn management and other more severe disturbances – in tropical rain forests are poorly understood. We addressed the effects of anthropogenic disturbance on rain-forest AM fungal communities in French Guiana, by comparing mature tropical rain forest, slash-and-burn (5 y old) and clearcut areas (8 y old). A total of 36 soil samples were collected in six plots and sequenced using a high throughput 454-pyrosequencing platform. A total of 32649 sequences from 103 AM fungal virtual taxa (VT) were recorded. Whereas alpha diversity of AM fungi did not decrease due to land-use intensification, with average richness ranging from 17 to 21 taxa per plot, beta diversity (average distance to multivariate centroid) dropped by 28% from 0.46 in rain forest to 0.33 under clearcutting. AM fungal community composition was correlated with land use and soil chemical properties. Clearcut areas were characterized by the more frequent occurrence of specialist AM fungi, compared with mature forest or slash-and-burn areas. Specifically, clearcuts contained the highest proportions of VT that were geographic (21%), habitat (31%), abundance (97%) or host (97%) specialists based on VT metadata contained in the MaarjAM database. This suggests that certain AM fungi with narrow ecological niches have traits that allow them to exploit conditions of severe disturbance. In conclusion, slash-and-burn management appears to allow diverse AM fungal communities to persist, and may favour regeneration of tropical rain forest after abandonment. More severe disturbance in the form of clearcutting resulted in marked changes in AM fungal communities.
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