1
|
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] [What about the content of this article? (0)] [Affiliation(s)] [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
|
2
|
García de León D, Davison J, Moora M, Öpik M, Feng H, Hiiesalu I, Jairus T, Koorem K, Liu Y, Phosri C, Sepp SK, Vasar M, Zobel M. Anthropogenic disturbance equalizes diversity levels in arbuscular mycorrhizal fungal communities. Glob Chang Biol 2018; 24:2649-2659. [PMID: 29573508 DOI: 10.1111/gcb.14131] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 02/07/2018] [Accepted: 03/06/2018] [Indexed: 06/08/2023]
Abstract
The arbuscular mycorrhizal (AM) symbiosis is a key plant-microbe interaction in sustainable functioning ecosystems. Increasing anthropogenic disturbance poses a threat to AM fungal communities worldwide, but there is little empirical evidence about its potential negative consequences. In this global study, we sequenced AM fungal DNA in soil samples collected from pairs of natural (undisturbed) and anthropogenic (disturbed) plots in two ecosystem types (10 naturally wooded and six naturally unwooded ecosystems). We found that ecosystem type had stronger directional effects than anthropogenic disturbance on AM fungal alpha and beta diversity. However, disturbance increased alpha and beta diversity at sites where natural diversity was low and decreased diversity at sites where natural diversity was high. Cultured AM fungal taxa were more prevalent in anthropogenic than natural plots, probably due to their efficient colonization strategies and ability to recover from disturbance. We conclude that anthropogenic disturbance does not have a consistent directional effect on AM fungal diversity; rather, disturbance equalizes levels of diversity at large scales and causes changes in community functional structure.
Collapse
Affiliation(s)
| | - John Davison
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
| | - Mari Moora
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
| | - Maarja Öpik
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
| | - Huyuan Feng
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Inga Hiiesalu
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
| | - Teele Jairus
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
| | - Kadri Koorem
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
| | - Yongjun Liu
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, China
| | | | - Siim-Kaarel Sepp
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
| | - Martti Vasar
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
| | - Martin Zobel
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
| |
Collapse
|
3
|
Waller LP, Felten J, Hiiesalu I, Vogt-Schilb H. Sharing resources for mutual benefit: crosstalk between disciplines deepens the understanding of mycorrhizal symbioses across scales. New Phytol 2018; 217:29-32. [PMID: 29193223 DOI: 10.1111/nph.14912] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Affiliation(s)
- Lauren P Waller
- Bio-Protection Research Centre, Lincoln University, Lincoln, 7647, New Zealand
| | - Judith Felten
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre, Swedish University of Agricultural Sciences, 90183, Umeå, Sweden
| | - Inga Hiiesalu
- Institute of Ecology and Earth Sciences, University of Tartu, 40 Lai Street, 51005, Tartu, Estonia
| | - Hélène Vogt-Schilb
- Faculty of Science, University of South Bohemia, Branišovská 1760, 37005, České Budějovice, Czech Republic
| |
Collapse
|
4
|
Rillig MC, Aguilar-Trigueros CA, Bergmann J, Verbruggen E, Veresoglou SD, Lehmann A. Plant root and mycorrhizal fungal traits for understanding soil aggregation. New Phytol 2015; 205:1385-1388. [PMID: 25231111 DOI: 10.1111/nph.13045] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Affiliation(s)
- Matthias C Rillig
- Institut für Biologie, Plant Ecology, Freie Universität Berlin, Altensteinstr. 6, D-14195, Berlin, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), D-14195, Berlin, Germany
| | - Carlos A Aguilar-Trigueros
- Institut für Biologie, Plant Ecology, Freie Universität Berlin, Altensteinstr. 6, D-14195, Berlin, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), D-14195, Berlin, Germany
| | - Joana Bergmann
- Institut für Biologie, Plant Ecology, Freie Universität Berlin, Altensteinstr. 6, D-14195, Berlin, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), D-14195, Berlin, Germany
| | - Erik Verbruggen
- Institut für Biologie, Plant Ecology, Freie Universität Berlin, Altensteinstr. 6, D-14195, Berlin, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), D-14195, Berlin, Germany
| | - Stavros D Veresoglou
- Institut für Biologie, Plant Ecology, Freie Universität Berlin, Altensteinstr. 6, D-14195, Berlin, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), D-14195, Berlin, Germany
| | - Anika Lehmann
- Institut für Biologie, Plant Ecology, Freie Universität Berlin, Altensteinstr. 6, D-14195, Berlin, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), D-14195, Berlin, Germany
| |
Collapse
|