1
|
da Silva KJG, Fernandes JAL, Magurno F, Leandro LBA, Goto BT, Theodoro RC. Phylogenetic Review of Acaulospora (Diversisporales, Glomeromycota) and the Homoplasic Nature of Its Ornamentations. J Fungi (Basel) 2022; 8:jof8090892. [PMID: 36135617 PMCID: PMC9502532 DOI: 10.3390/jof8090892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 08/04/2022] [Accepted: 08/05/2022] [Indexed: 11/25/2022] Open
Abstract
The genus Acaulospora has undergone many updates since it was first described; however, there are some missing pieces in the phylogenetic relationships among Acaulospora species. The present review aimed to: (i) understand the evolutionary meaning of their different spore wall ornamentations; (ii) define the best molecular marker for phylogenetic inferences, (iii) address some specific issues concerning the polyphyletic nature of Acaulospora lacunosa and Acaulospora scrobiculata, and the inclusion of Kuklospora species; and (iv) update the global geographical distribution of Acaulospora species. As such, the wall ornamentation of previously described Acaulospora species was reviewed and phylogenetic analyses were carried out based on ITS and SSU-ITS-LSU (nrDNA). Moreover, the already available type material of A. sporocarpia was inspected. According to the data obtained, temperate and tropical zones are the richest in Acaulospora species. We also confirmed that A. sporocarpia does not belong to Acaulospora. Furthermore, our phylogeny supported the monophyly of Acaulospora genus, including the Kuklospora species, K. colombiana and K. kentinensis. The nrDNA phylogeny presented the best resolution and revealed the homoplasic nature of many ornamentations in Acaulospora species, pointing out their unfeasible phylogenetic signal. This review reinforces the urgency of more molecular markers, in addition to the nrDNA sequences, for the definition of a multi-locus phylogeny.
Collapse
Affiliation(s)
- Kássia J. G. da Silva
- Programa de Pós-Graduação em Sistemática e Evolução, Centro de Biociências, Natal 59078-970, RN, Brazil
- Centro de Biociências, Campus Central, Universidade Federal do Rio Grande do Norte, Natal 59064-741, RN, Brazil
| | | | - Franco Magurno
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Jagiellońska 28, 40-032 Katowice, Poland
| | - Larissa B. A. Leandro
- Centro de Biociências, Campus Central, Universidade Federal do Rio Grande do Norte, Natal 59064-741, RN, Brazil
| | - Bruno T. Goto
- Departamento de Botânica e Zoologia, Universidade Federal do Rio Grande do Norte, Natal 59064-741, RN, Brazil
| | - Raquel C. Theodoro
- Departamento de Biologia Celular e Genética, Universidade Federal do Rio Grande do Norte, Natal 59064-741, RN, Brazil
- Correspondence:
| |
Collapse
|
2
|
Deepika S, Kothamasi D. Plant hosts may influence arbuscular mycorrhizal fungal community composition in mangrove estuaries. MYCORRHIZA 2021; 31:699-711. [PMID: 34477968 DOI: 10.1007/s00572-021-01049-y] [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: 12/15/2020] [Accepted: 08/19/2021] [Indexed: 06/13/2023]
Abstract
We investigated the role of plant host and soil variables in determining arbuscular mycorrhizal fungi (AMF) community composition in plant roots of two spatially separated mangrove estuaries on the rivers Aghanashini (14° 30' 30″ N-74° 22' 44″ E) and Gangavali (14° 35' 26″ N-74° 17' 51″ E) on the west coast of India. Both mangrove estuaries had similar plant species composition but differed in soil chemistries.We amplified a 550-bp portion of 18S small subunit (SSU) rDNA from mangrove plant roots and analysed it by restriction fragment length polymorphism (RFLP). Clones representing unique RFLP patterns were sequenced. A total of 736 clones were obtained from roots of seven and five plant species sampled at Aghanashini and Gangavali, respectively. AMF phylotype numbers in plant roots at Aghanashini (12) were higher than at Gangavali (9) indicating quantitative differences in the AMF community composition in plant roots at the two mangrove estuaries. Because both estuaries had similar plant species composition, the quantitative difference in AMF communities between the estuaries could be an attribute of the differences in rhizospheric chemistry between the two sites.Non-metric multidimensional scaling (NMDS) revealed overlap in the AMF communities of the two sites. Three and two AMF phylotypes had significant indicator value indices with specific hosts at Aghanashini and Gangavali, respectively. Environmental vector fitting to NMDS ordination did not reveal a significant effect of any soil variable on AMF composition at the two sites. However, significant effects of both plant hosts and sites were observed on rhizospheric P. Our results indicate that root AMF community composition may be an outcome of plant response to rhizospheric variables. This suggests that plant identity may have a primary role in shaping AMF communities in mangroves.
Collapse
Affiliation(s)
- Sharma Deepika
- Laboratory of Soil Biology and Microbial Ecology, Department of Environmental Studies, University of Delhi, Delhi, 110 007, India.
- Department of Botany, Zakir Husain Delhi College, University of Delhi, Delhi, 110 002, India.
| | - David Kothamasi
- Laboratory of Soil Biology and Microbial Ecology, Department of Environmental Studies, University of Delhi, Delhi, 110 007, India
- Strathclyde Centre for Environmental Law and Governance, University of Strathclyde, Glasgow, G1 1XQ, Scotland
| |
Collapse
|
3
|
From the ground up: Building predictions for how climate change will affect belowground mutualisms, floral traits, and bee behavior. CLIMATE CHANGE ECOLOGY 2021. [DOI: 10.1016/j.ecochg.2021.100013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
4
|
Stürmer SL, Bever JD, Morton JB. Biogeography of arbuscular mycorrhizal fungi (Glomeromycota): a phylogenetic perspective on species distribution patterns. MYCORRHIZA 2018; 28:587-603. [PMID: 30187122 DOI: 10.1007/s00572-018-0864-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 08/23/2018] [Indexed: 05/03/2023]
Abstract
Information on the biogeography of arbuscular mycorrhizal fungi (AMF) is important because this group of obligately symbiotic soil microbes is a ubiquitous and functionally critical component of terrestrial ecosystems. In this paper, we utilize a biogeography database summarizing data on AMF species distribution linked to geographic and environmental conditions to describe global distribution patterns and interpret these patterns within a phylogenetic perspective. The data were obtained from accessions in living culture collections (INVAM, CICG), species descriptions, and other published literature from 1960 to 2012. The database contains 7105 records, 6396 of them from 768 published papers and the remaining 709 from culture accessions. Glomeromycotan species were recorded in all seven continents, 87 countries, 11 biogeographical realms, and 14 biomes. The distribution of families differed among climatic zones and continents, but they, together with all genera, appear to be cosmopolitan. Distribution of AMF species shows a slight decrease from low to high latitudes, but this decrease is steeper in the southern than in the northern hemisphere. A total of 189 species is shared between ancient supercontinents Gondwana and Laurasia and 78 species are common to all climatic zones. Ninety-five species (43% of the total) have known cosmopolitan distribution, including members of all genera except Redeckera. Some species have disjunct distribution and 26% of species have been registered from only one continent. Data on AMF distribution challenge the "Everything is everywhere" hypothesis in favor of the "moderate endemicity model" for species distribution. Data from this study provide a foundation to formulate and test hypotheses of biogeographic patterns and processes in Glomeromycota.
Collapse
Affiliation(s)
- Sidney L Stürmer
- Departamento de Ciências Naturais, Universidade Regional de Blumenau, Blumenau, SC, 89030-903, Brazil.
| | - James D Bever
- Department of Ecology and Evolutionary Biology and Kansas Biological Survey, The University of Kansas, Lawrence, KS, 66047, USA
| | - Joseph B Morton
- West Virginia University, 1090 Agricultural Sciences Building, Morgantown, WV, 26506, USA
| |
Collapse
|
5
|
Liu D, Liu G, Chen L, Wang J, Zhang L. Soil pH determines fungal diversity along an elevation gradient in Southwestern China. SCIENCE CHINA-LIFE SCIENCES 2018; 61:718-726. [PMID: 29307110 DOI: 10.1007/s11427-017-9200-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Accepted: 10/09/2017] [Indexed: 11/29/2022]
Abstract
Fungi play important roles in ecosystem processes, and the elevational pattern of fungal diversity is still unclear. Here, we examined the diversity of fungi along a 1,000 m elevation gradient on Mount Nadu, Southwestern China. We used MiSeq sequencing to obtain fungal sequences that were clustered into operational taxonomic units (OTUs) and to measure the fungal composition and diversity. Though the species richness and phylogenetic diversity of the fungal community did not exhibit significant trends with increasing altitude, they were significantly lower at mid-altitudinal sites than at the base. The Bray-Curtis distance clustering also showed that the fungal communities varied significantly with altitude. A distance-based linear model multivariate analysis (DistLM) identified that soil pH dominated the explanatory power of the species richness (23.72%), phylogenetic diversity (24.25%) and beta diversity (28.10%) of the fungal community. Moreover, the species richness and phylogenetic diversity of the fungal community increased linearly with increasing soil pH (P<0.05). Our study provides evidence that pH is an important predictor of soil fungal diversity along elevation gradients in Southwestern China.
Collapse
Affiliation(s)
- Dan Liu
- 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
| | - Guohua Liu
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China. .,Joint Center for Global Change Studies, Beijing, 100875, China.
| | - Li 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
| | - Juntao Wang
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Limei Zhang
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| |
Collapse
|