Fungi Associated with Plants and Lichens of Antarctica

Carvalho, Camila Rodrigues de; Santiago, Iara Furtado; Coelho, Lívia da Costa; Câmara, Paulo Eduardo Aguiar Saraiva; Carvalho‐Silva, Micheline; Stech, Michael; Rosa, Carlos A.; Rosa, Luiz Henrique

doi:10.1007/978-3-030-18367-7_8

Cited by 13 publications

(6 citation statements)

References 70 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At lower taxonomic levels (genus), we found that the dominant taxa reported in this study (i.e., Ferruginibacter, Candidatus Udaeobacter, Polaromonas, Sphingomonas, Rhodanobacter, Gemmatimonas, Mucilaginibacter, Chthoniobacter, Flavobacterium, and Bryobacter) have been reported as relevant bacterial groups in Antarctic soils (Cary et al, 2010;Kim et al, 2012Kim et al, , 2019Pearce et al, 2012;Guo et al, 2018;Dennis et al, 2019;Lambrechts et al, 2019;Ramírez-Fernández et al, 2019;Almela et al, 2021;Marcoleta et al, 2022). Likewise, we found that some abundant genera of fungi reported in this work (i.e., Mortierella, Glaciozyma, Antarctomyces, Mrakia, Pseudogymnoascus, Herpotrichia, Juncaceicola, Microdochium, Leptosphaeria, and Dioszegia) have also been described as essential components of Antarctic soils (Pearce et al, 2012;Aislabie et al, 2014;de Andrade et al, 2018;Firdaus-Raih et al, 2018;de Carvalho et al, 2019;Garrido-Benavent et al, 2020;Horrocks et al, 2020). Also, at the genus level, we were able to identify microbial taxa that were significantly enriched in the plant-associated compartments (rhizosphere and RSS).…”

Section: The Microbial Composition Of Antarctic Vascular Plantssupporting

confidence: 78%

“…In woody plants, a decreased frequency of ectomycorrhizal formation is associated with a higher exposed root surface for endophytic fungi to colonize and, consequently, higher levels of fungal diversity ( Bonito et al, 2014 ). To date, there is no evidence of ectomycorrhizal fungi colonization of Da plants, and a large number of endophytic fungi have been isolated from its rhizosphere ( de Carvalho et al, 2019 and references therein). Thus, the high abundance of endophytic fungi could explain the higher fungal diversity found in Da’s rhizosphere.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Source and acquisition of rhizosphere microbes in Antarctic vascular plants

et al. 2022

View full text Add to dashboard Cite

Rhizosphere microbial communities exert critical roles in plant health, nutrient cycling, and soil fertility. Despite the essential functions conferred by microbes, the source and acquisition of the rhizosphere are not entirely clear. Therefore, we investigated microbial community diversity and potential source using the only two native Antarctic plants, Deschampsia antarctica (Da) and Colobanthus quitensis (Cq), as models. We interrogated rhizosphere and bulk soil microbiomes at six locations in the Byers Peninsula, Livingston Island, Antarctica, both individual plant species and their association (Da.Cq). Our results show that host plant species influenced the richness and diversity of bacterial communities in the rhizosphere. Here, the Da rhizosphere showed the lowest richness and diversity of bacteria compared to Cq and Da.Cq rhizospheres. In contrast, for rhizosphere fungal communities, plant species only influenced diversity, whereas the rhizosphere of Da exhibited higher fungal diversity than the Cq rhizosphere. Also, we found that environmental geographic pressures (i.e., sampling site, latitude, and altitude) and, to a lesser extent, biotic factors (i.e., plant species) determined the species turnover between microbial communities. Moreover, our analysis shows that the sources of the bacterial communities in the rhizosphere were local soils that contributed to homogenizing the community composition of the different plant species growing in the same sampling site. In contrast, the sources of rhizosphere fungi were local (for Da and Da.Cq) and distant soils (for Cq). Here, the host plant species have a specific effect in acquiring fungal communities to the rhizosphere. However, the contribution of unknown sources to the fungal rhizosphere (especially in Da and Da.Cq) indicates the existence of relevant stochastic processes in acquiring these microbes. Our study shows that rhizosphere microbial communities differ in their composition and diversity. These differences are explained mainly by the microbial composition of the soils that harbor them, acting together with plant species-specific effects. Both plant species acquire bacteria from local soils to form part of their rhizosphere. Seemingly, the acquisition process is more complex for fungi. We identified a significant contribution from unknown fungal sources due to stochastic processes and known sources from soils across the Byers Peninsula.

show abstract

Section: The Microbial Composition Of Antarctic Vascular Plantssupporting

confidence: 78%

Section: Discussionmentioning

confidence: 99%

Source and acquisition of rhizosphere microbes in Antarctic vascular plants

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Some previous studies also showed a dominance of Sordariomycetes in ELF species (in China, France, Japan, North America, Norway, and Sri Lanka) [9,22,28,31,39,75]. By contrast, other studies showed a dominance of Dothideomycetes, Leotiomycetes or Pezizomycetes (in Antarctica, Germany, Italy, and USA) [13,14,27,77]. However, there is no specific pattern of ELF dominance depending on the country, continent, or climate zone.…”

Section: Discussionmentioning

confidence: 82%

Diversity and Distribution Patterns of Endolichenic Fungi in Jeju Island, South Korea

Yang

Woo

et al. 2020

Sustainability

View full text Add to dashboard Cite

Lichens are symbiotic organisms containing diverse microorganisms. Endolichenic fungi (ELF) are one of the inhabitants living in lichen thalli, and have potential ecological and industrial applications due to their various secondary metabolites. As the function of endophytic fungi on the plant ecology and ecosystem sustainability, ELF may have an influence on the lichen diversity and the ecosystem, functioning similarly to the influence of endophytic fungi on plant ecology and ecosystem sustainability, which suggests the importance of understanding the diversity and community pattern of ELF. In this study, we investigated the diversity and the factors influencing the community structure of ELF in Jeju Island, South Korea by analyzing 619 fungal isolates from 79 lichen samples in Jeju Island. A total of 112 ELF species was identified and the most common species belonged to Xylariales in Sordariomycetes. The richness and community structure of ELF were significantly influenced by the host taxonomy, together with the photobiont types and environmental factors. Our results suggest that various lichen species in more diverse environments need to be analyzed to expand our knowledge of the diversity and ecology of ELF.

show abstract

“…Together with this species, the yeasts of Mrakia and Cystobasidium form a large part of the Antarctic mycobiota, well adapted to their conditions. The strains found significantly demonstrated high potential for enzymatic activity (Carvalho et al 2019).…”

Section: Yeasts Identificationmentioning

confidence: 97%

“…They are forms of life resulting from symbiotic interaction between filamentous fungi and a photobiont partner (algae or cyanobacteria), although, studies indicate other microorganisms involved in this association and the term lichensphere was introduced by Santiago et al (2015) to represents the thallus of lichens as a natural microhabitat for refuge and dispersion of nonlichenic microorganisms, such as yeast. The latter strategically take shelter in the lichenic structure and can play functional roles in the relationships, particularly in the sharing of metabolites, that take place in lichens (Santiago et al 2015, Grube & Wedin 2016, Pankratov et al 2017, Carvalho et al 2019. It is advantageous for yeasts to colonize these niches and establish associations as a survival strategy in this extreme environment (Santiago et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Extracellular hydrolytic enzymes produced by yeasts from Antarctic lichens

Silva

Fernandez

et al. 2022

An. Acad. Bras. Ciênc.

Self Cite

View full text Add to dashboard Cite

In the Antarctic environment, yeasts are versatile eukaryotes that have shown wide dispersion in different substrates, producing active enzymes in extreme conditions, but their relevance in biotechnological applications is largely unknown. The aim of this study was to evaluate the production of extracellular hydrolases by yeasts isolated from Antarctic lichens and molecularly identify these isolates. From a total of 144 isolates on the screening, 109 (76%) produced at least one of the hydrolases tested, with most activities for proteases 59 (41%), cellulases 58 (40%), esterases 57 (39%), lipases 29 (20%), amylases 23 (16%) and pectinases 20 (14%). Among these isolates, 76 were identifi ed, most belonged to the phylum Basidiomycota (n=73) with the dominance of Vishniacozyma victoriae (n=27), Cystobasidium alpinum (n=3), Mrakia niccombsii (n=3), Cystobasidium laryngis (n=2), Bannozyma yamatoana (n=2), Holtermanniella nyarrowii (n=2), and Glaciozyma martinii (n=2). This study is the fi rst one reporting extracellular enzyme production by yeasts isolated from thallus of the species of Antarctic lichens Lecania brialmontii, Polycauliona candelaria, Usnea capillacea, Cladonia metacorallifera, and Polycauliona regalis. With these data, it's possible to confi rm lichens as a source of hydrolase-producing yeasts, reinforcing the potential of these microorganisms in bioprospecting studies of catalytic molecules from polar regions that may be useful in promising biotechnological applications.

show abstract

Fungi Associated with Plants and Lichens of Antarctica

Cited by 13 publications

References 70 publications

Source and acquisition of rhizosphere microbes in Antarctic vascular plants

Source and acquisition of rhizosphere microbes in Antarctic vascular plants

Diversity and Distribution Patterns of Endolichenic Fungi in Jeju Island, South Korea

Extracellular hydrolytic enzymes produced by yeasts from Antarctic lichens

Contact Info

Product

Resources

About