1
|
Afshana, Reshi ZA, Shah MA, Malik RA, Rashid I. Species composition of root-associated mycobiome of ruderal invasive Anthemis cotula L. varies with elevation in Kashmir Himalaya. Int Microbiol 2023; 26:1053-1071. [PMID: 37093323 DOI: 10.1007/s10123-023-00359-9] [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: 01/25/2023] [Revised: 04/08/2023] [Accepted: 04/11/2023] [Indexed: 04/25/2023]
Abstract
Investigating the microbial communities associated with invasive plant species can provide insights into how these species establish and thrive in new environments. Here, we explored the fungal species associated with the roots of the invasive species Anthemis cotula L. at 12 sites with varying elevations in the Kashmir Himalaya. Illumina MiSeq platform was used to identify the species composition, diversity, and guild structure of these root-associated fungi. The study found a total of 706 fungal operational taxonomic units (OTUs) belonging to 8 phyla, 20 classes, 53 orders, 109 families, and 160 genera associated with roots of A. cotula, with the most common genus being Funneliformis. Arbuscular mycorrhizal fungi (AMF) constituted the largest guild at higher elevations. The study also revealed that out of the 12 OTUs comprising the core mycobiome, 4 OTUs constituted the stable component while the remaining 8 OTUs comprised the dynamic component. While α-diversity did not vary across sites, significant variation was noted in β-diversity. The study confirmed the facilitative role of the microbiome through a greenhouse trial in which a significant effect of soil microbiome on height, shoot biomass, root biomass, number of flower heads, and internal CO2 concentration of the host plant was observed. The study indicates that diverse fungal mutualists get associated with this invasive alien species even in nutrient-rich ruderal habitats and may be contributing to its spread into higher elevations. This study highlights the importance of understanding the role of root-associated fungi in invasion dynamics and the potential use of mycobiome management strategies to control invasive species.
Collapse
Affiliation(s)
- Afshana
- Department of Botany, University of Kashmir, Srinagar, 190006, J&K, India
| | - Zafar A Reshi
- Department of Botany, University of Kashmir, Srinagar, 190006, J&K, India.
| | - Manzoor A Shah
- Department of Botany, University of Kashmir, Srinagar, 190006, J&K, India
| | - Rayees A Malik
- Department of Botany, University of Kashmir, Srinagar, 190006, J&K, India
| | - Irfan Rashid
- Department of Botany, University of Kashmir, Srinagar, 190006, J&K, India
| |
Collapse
|
2
|
Hiiesalu I, Schweichhart J, Angel R, Davison J, Doležal J, Kopecký M, Macek M, Řehakova K. Plant-symbiotic fungal diversity tracks variation in vegetation and the abiotic environment along an extended elevational gradient in the Himalayas. FEMS Microbiol Ecol 2023; 99:fiad092. [PMID: 37562924 DOI: 10.1093/femsec/fiad092] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 05/30/2023] [Accepted: 08/07/2023] [Indexed: 08/12/2023] Open
Abstract
Arbuscular mycorrhizal (AM) fungi can benefit plants under environmental stress, and influence plant adaptation to warmer climates. However, very little is known about the ecology of these fungi in alpine environments. We sampled plant roots along a large fraction (1941-6150 m asl (above sea level)) of the longest terrestrial elevational gradient on Earth and used DNA metabarcoding to identify AM fungi. We hypothesized that AM fungal alpha and beta diversity decreases with increasing elevation, and that different vegetation types comprise dissimilar communities, with cultured (putatively ruderal) taxa increasingly represented at high elevations. We found that the alpha diversity of AM fungal communities declined linearly with elevation, whereas within-site taxon turnover (beta diversity) was unimodally related to elevation. The composition of AM fungal communities differed between vegetation types and was influenced by elevation, mean annual temperature, and precipitation. In general, Glomeraceae taxa dominated at all elevations and vegetation types; however, higher elevations were associated with increased presence of Acaulosporaceae, Ambisporaceae, and Claroideoglomeraceae. Contrary to our expectation, the proportion of cultured AM fungal taxa in communities decreased with elevation. These results suggest that, in this system, climate-induced shifts in habitat conditions may facilitate more diverse AM fungal communities at higher elevations but could also favour ruderal taxa.
Collapse
Affiliation(s)
- Inga Hiiesalu
- Institute of Ecology and Earth Sciences, University of Tartu, J. Liivi 2, 50 409 Tartu, Estonia
| | - Johannes Schweichhart
- Biology Centre of the CAS, Institute of Soil Biology and Biochemistry, Na Sádkách 702/7 , 370 05 České Budějovice, Czech Republic
- Faculty of Science, University of South Bohemia, Branišovská 1160/31, 370 05 České Budějovice, Czech Republic
| | - Roey Angel
- Biology Centre of the CAS, Institute of Soil Biology and Biochemistry, Na Sádkách 702/7 , 370 05 České Budějovice, Czech Republic
| | - John Davison
- Institute of Ecology and Earth Sciences, University of Tartu, J. Liivi 2, 50 409 Tartu, Estonia
| | - Jiři Doležal
- Institute of Botany of the CAS, Dukelská 135, 379 01 Třeboň, Czech Republic
- Faculty of Science, University of South Bohemia, Branišovská 1160/31, 370 05 České Budějovice, Czech Republic
| | - Martin Kopecký
- Institute of Botany of the CAS, Zámek 1, 252 43 Průhonice, Czech Republic
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 21, Praha 6, Czech Republic
| | - Martin Macek
- Institute of Botany of the CAS, Zámek 1, 252 43 Průhonice, Czech Republic
| | - Klára Řehakova
- Biology Centre of the CAS, Institute of Hydrobiology, Na Sádkách 702/7, 370 05 České Budějovice, Czech Republic
- Institute of Botany of the CAS, Dukelská 135, 379 01 Třeboň, Czech Republic
| |
Collapse
|
3
|
Yu F, Goto BT, Magurno F, Błaszkowski J, Wang J, Ma W, Feng H, Liu Y. Glomus chinense and Dominikia gansuensis, two new Glomeraceae species of arbuscular mycorrhizal fungi from high altitude in the Tibetan Plateau. Mycol Prog 2022. [DOI: 10.1007/s11557-022-01799-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
4
|
Marian M, Licciardello G, Vicelli B, Pertot I, Perazzolli M. Ecology and potential functions of plant-associated microbial communities in cold environments. FEMS Microbiol Ecol 2022; 98:fiab161. [PMID: 34910139 PMCID: PMC8769928 DOI: 10.1093/femsec/fiab161] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 12/13/2021] [Indexed: 11/13/2022] Open
Abstract
Complex microbial communities are associated with plants and can improve their resilience under harsh environmental conditions. In particular, plants and their associated communities have developed complex adaptation strategies against cold stress. Although changes in plant-associated microbial community structure have been analysed in different cold regions, scarce information is available on possible common taxonomic and functional features of microbial communities across cold environments. In this review, we discuss recent advances in taxonomic and functional characterization of plant-associated microbial communities in three main cold regions, such as alpine, Arctic and Antarctica environments. Culture-independent and culture-dependent approaches are analysed, in order to highlight the main factors affecting the taxonomic structure of plant-associated communities in cold environments. Moreover, biotechnological applications of plant-associated microorganisms from cold environments are proposed for agriculture, industry and medicine, according to biological functions and cold adaptation strategies of bacteria and fungi. Although further functional studies may improve our knowledge, the existing literature suggest that plants growing in cold environments harbor complex, host-specific and cold-adapted microbial communities, which may play key functional roles in plant growth and survival under cold conditions.
Collapse
Affiliation(s)
- Malek Marian
- Center Agriculture Food Environment (C3A), University of Trento, via E. Mach 1, 38098 San Michele all'Adige, Italy
- Research and Innovation Centre, Fondazione Edmund Mach, via E. Mach 1, 38098 San Michele all'Adige, Italy
| | - Giorgio Licciardello
- Center Agriculture Food Environment (C3A), University of Trento, via E. Mach 1, 38098 San Michele all'Adige, Italy
- Research and Innovation Centre, Fondazione Edmund Mach, via E. Mach 1, 38098 San Michele all'Adige, Italy
| | - Bianca Vicelli
- Center Agriculture Food Environment (C3A), University of Trento, via E. Mach 1, 38098 San Michele all'Adige, Italy
- Research and Innovation Centre, Fondazione Edmund Mach, via E. Mach 1, 38098 San Michele all'Adige, Italy
| | - Ilaria Pertot
- Center Agriculture Food Environment (C3A), University of Trento, via E. Mach 1, 38098 San Michele all'Adige, Italy
- Research and Innovation Centre, Fondazione Edmund Mach, via E. Mach 1, 38098 San Michele all'Adige, Italy
| | - Michele Perazzolli
- Center Agriculture Food Environment (C3A), University of Trento, via E. Mach 1, 38098 San Michele all'Adige, Italy
- Research and Innovation Centre, Fondazione Edmund Mach, via E. Mach 1, 38098 San Michele all'Adige, Italy
| |
Collapse
|
5
|
Atunnisa R, Ezawa T. Nestedness in Arbuscular Mycorrhizal Fungal Communities in a Volcanic Ecosystem: Selection of Disturbance-tolerant Fungi along an Elevation Gradient. Microbes Environ 2019; 34:327-333. [PMID: 31413228 PMCID: PMC6759341 DOI: 10.1264/jsme2.me19073] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Arbuscular mycorrhizal (AM) fungi play a significant role in the establishment and resilience of vegetation in harsh environments, such as volcanic slopes, in which soil is frequently disturbed by ash falling and erosion. We characterized AM fungal communities associated with a pioneer grass in a volcanic slope based on the disturbance tolerance of the fungi, addressing the hypothesis that soil disturbance is a major ecological filter for AM fungi in volcanic ecosystems and, thus, fungi that are more tolerant to soil disturbance are selected at higher elevations (i.e. nearer to the crater). Paired soil-core samples were collected from the rhizosphere of Miscanthus sinensis between the vegetation limit and forest limit on a volcanic slope and used in a trap culture with M. sinensis seedlings, in which one of the paired samples was sieved to destroy hyphal networks (disturbance treatment), while the other was not (intact treatment). Seedlings were grown in a greenhouse for two months, and the roots were subjected to molecular analysis of fungal communities. AM fungal diversity decreased with increasing elevations, in which nested structure was observed. Community dissimilarity between the disturbed and intact communities decreased with increasing elevations, suggesting that communities at higher elevations were more robust against soil disturbance. These results suggest that AM fungi that are more tolerant to soil disturbance are more widely distributed across the ecosystem, that is, they are generalists. The wide distribution of disturbance-tolerant fungi may have significant implications for the rapid resilience of vegetation after disturbance in the ecosystem.
Collapse
|
6
|
Kotilínek M, Hiiesalu I, Košnar J, Šmilauerová M, Šmilauer P, Altman J, Dvorský M, Kopecký M, Doležal J. Fungal root symbionts of high-altitude vascular plants in the Himalayas. Sci Rep 2017; 7:6562. [PMID: 28747779 PMCID: PMC5529584 DOI: 10.1038/s41598-017-06938-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 05/30/2017] [Indexed: 11/29/2022] Open
Abstract
Arbuscular mycorrhizal fungi (AMF) and dark septate endophytes (DSE) form symbiotic relationships with plants influencing their productivity, diversity and ecosystem functions. Only a few studies on these fungi, however, have been conducted in extreme elevations and none over 5500 m a.s.l., although vascular plants occur up to 6150 m a.s.l. in the Himalayas. We quantified AMF and DSE in roots of 62 plant species from contrasting habitats along an elevational gradient (3400-6150 m) in the Himalayas using a combination of optical microscopy and next generation sequencing. We linked AMF and DSE communities with host plant evolutionary history, ecological preferences (elevation and habitat type) and functional traits. We detected AMF in elevations up to 5800 m, indicating it is more constrained by extreme conditions than the host plants, which ascend up to 6150 m. In contrast, DSE were found across the entire gradient up to 6150 m. AMF diversity was unimodally related to elevation and positively related to the intensity of AMF colonization. Mid-elevation steppe and alpine plants hosted more diverse AMF communities than plants from deserts and the subnival zone. Our results bring novel insights to the abiotic and biotic filters structuring AMF and DSE communities in the Himalayas.
Collapse
Affiliation(s)
- Milan Kotilínek
- Faculty of Science, University of South Bohemia, Branišovská 1760, 370 05, České Budějovice, Czech Republic.
| | - Inga Hiiesalu
- Institute of Botany, The Czech Academy of Sciences, Zámek 1, 252 43, Průhonice, Czech Republic
| | - Jiří Košnar
- 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
| | - Petr Šmilauer
- Faculty of Science, University of South Bohemia, Branišovská 1760, 370 05, České Budějovice, Czech Republic
| | - Jan Altman
- Institute of Botany, The Czech Academy of Sciences, Zámek 1, 252 43, Průhonice, Czech Republic
| | - Miroslav Dvorský
- Institute of Botany, The Czech Academy of Sciences, Zámek 1, 252 43, Průhonice, Czech Republic
| | - Martin Kopecký
- Institute of Botany, The Czech Academy of Sciences, Zámek 1, 252 43, Průhonice, Czech Republic
- Department of Forest Ecology, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Prague 6, Suchdol, CZ-165 21, Czech Republic
| | - Jiří Doležal
- Faculty of Science, University of South Bohemia, Branišovská 1760, 370 05, České Budějovice, Czech Republic
- Institute of Botany, The Czech Academy of Sciences, Zámek 1, 252 43, Průhonice, Czech Republic
- Institute of Low Temperature Science, Hokkaido University, Kita-19, Nishi-8, Kita-ku, Sapporo, 060-0819, Japan
| |
Collapse
|