Genetic and biochemical characterization of yeasts isolated from Antarctic soil samples

Białkowska, Aneta; Szulczewska, Katarzyna; Krysiak, Joanna; Florczak, Tomasz; Gromek, Ewa; Kassassir, Hassan; Kur, Józef; Turkiewicz, Marianna

doi:10.1007/s00300-017-2102-7

Cited by 29 publications

(24 citation statements)

References 41 publications

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“…Genera Trichosporon has been reported as arctic-adapted yeast 23 , and the results obtained suggested that Trichosporonaceae could play an important role in microbial metabolism in both influents and bioreactors in Polar Arctic Circle full-scale WWTPs, since it is known that Trichosporon can denitrify and help Bacteria OTUs in nitrogen removal 24 . Besides Trichosporonaceae family members, the other OTUs represented were related to Mortierella and Naganishia genera, which have been isolated from Arctic and Antarctic soil samples, respectively 25 , 26 .…”

Section: Resultsmentioning

confidence: 99%

Microbial ecology of full-scale wastewater treatment systems in the Polar Arctic Circle: Archaea, Bacteria and Fungi

González‐Martínez

Sihvonen

Muñoz-Palazon

et al. 2018

Sci Rep

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Seven full-scale biological wastewater treatment systems located in the Polar Arctic Circle region in Finland were investigated to determine their Archaea, Bacteria and Fungi community structure, and their relationship with the operational conditions of the bioreactors by the means of quantitative PCR, massive parallel sequencing and multivariate redundancy analysis. The results showed dominance of Archaea and Bacteria members in the bioreactors. The activated sludge systems showed strong selection of Bacteria but not for Archaea and Fungi, as suggested by diversity analyses. Core OTUs in influent and bioreactors were classified as Methanobrevibacter, Methanosarcina, Terrestrial Group Thaumarchaeota and unclassified Euryarchaeota member for Archaea; Trichococcus, Leptotrichiaceae and Comamonadaceae family, and Methylorosula for Bacteria and Trichosporonaceae family for Fungi. All influents shared core OTUs in all domains, but in bioreactors this did not occur for Bacteria. Oligotype structure of core OTUs showed several ubiquitous Fungi oligotypes as dominant in sewage and bioreactors. Multivariate redundancy analyses showed that the majority of core OTUs were related to organic matter and nutrients removal. Also, there was evidence of competition among Archaea and Fungi core OTUs, while all Bacteria OTUs were positively correlated among them. The results obtained highlighted interesting features of extremely cold temperature bioreactors.

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Section: Resultsmentioning

confidence: 99%

Microbial ecology of full-scale wastewater treatment systems in the Polar Arctic Circle: Archaea, Bacteria and Fungi

González‐Martínez

Sihvonen

Muñoz-Palazon

et al. 2018

Sci Rep

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“…It is possible that the different assemblages of yeast and anamorphic fungi might be the result of the environments that the different populations inhabit. For example, Goffeauzyma and Naganishia yeast have been reported as psychrophilic and found in extreme cold environments [82,83].…”

Section: Composition Of the Fecal Microbiota Of Sceloporus Grammicus mentioning

confidence: 99%

Dietary effects on gut microbiota of the mesquite lizard Sceloporus grammicus (Wiegmann, 1828) across different altitudes

et al. 2020

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Background: High-altitude ecosystems are extreme environments that generate specific physiological, morphological, and behavioral adaptations in ectotherms. The shifts in gut microbiota of the ectothermic hosts as an adaptation to environmental changes are still largely unknown. We investigated the food ingested and the bacterial, fungal, and protistan communities in feces of the lizard Sceloporus grammicus inhabiting an altitudinal range using metabarcoding approaches. Results: The bacterial phyla Bacteroidetes and Firmicutes, and the genera Bacteroides and Parabacteroides dominated the core fecal bacteriome, while Zygomycota and Ascomycota, and the species Basidiobolus ranarum and Basidiobolus magnus dominated the core fecal mycobiome. The diet of S. grammicus included 29 invertebrate families belonging to Arachnida, Chilopoda, and Insecta. The diversity and abundance of its diet decreased sharply at high altitudes, while the abundance of plant material and Agaricomycetes was significantly higher at the highest site. The composition of the fecal microbiota of S. grammicus was different at the three altitudes, but not between females and males. Dietary restriction in S. grammicus at 4150 m might explain the high fecal abundance of Akkermansia and Oscillopira, bacteria characteristic of long fasting periods, while low temperature favored B. magnus. A high proportion of bacterial functions were digestive in S. grammicus at 2600 and 3100, while metabolism of aminoacids, vitamins, and key intermediates of metabolic pathways were higher at 4150 m. Different assemblages of fungal species in the lizard reflect differences in the environments at different elevations. Pathogens were more prevalent at high elevations than at the low ones. Conclusions: Limiting food resources at high elevations might oblige S. grammicus to exploit other food resources and its intestinal microbiota have degradative and detoxifying capacities. Sceloporus grammicus might have acquired B. ranarum from the insects infected by the fungus, but its commensal relationship might be established by the quitinolytic capacities of B. ranarum. The mycobiome participate mainly in digestive and degradative functions while the bacteriome in digestive and metabolic functions.

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“…(Ruisi et al ., 2007; Santiago et al ., 2012; Buzzini et al ., 2012, 2017 and references therein; Zucconi et al ., 2012; Goordial et al ., 2016; Selbmann, 2019). Early studies on cold‐adapted yeasts and filamentous fungi colonizing polar habitats date back since 1960s (Soneda, 1961; Tubaki, 1961; Jacobs et al ., 1964) and an increasing number of studies has been reported in recent years (Baeza et al ., 2017; Bialkowska et al ., 2017; Borruso et al ., 2018; Gomes et al ., 2018; da Silva et al ., 2019; Duran et al ., 2019; Godinho et al ., 2019).…”

Section: Introductionmentioning

confidence: 99%

Intra‐ and inter‐cores fungal diversity suggests interconnection of different habitats in an Antarctic frozen lake (Boulder Clay, Northern Victoria Land)

Sannino

Borruso

Mezzasoma

et al. 2020

Environmental Microbiology

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Summary A perennially frozen lake at Boulder Clay site (Victoria Land, Antarctica), characterized by the presence of frost mounds, have been selected as an in situ model for ecological studies. Different samples of permafrost, glacier ice and brines have been studied as a unique habitat system. An additional sample of brines (collected in another frozen lake close to the previous one) was also considered. Alpha‐ and beta‐diversity of fungal communities showed both intra‐ and inter‐cores significant (p < 0.05) differences, which suggest the presence of interconnection among the habitats. Therefore, the layers of frost mound and the deep glacier could be interconnected while the brines could probably be considered as an open habitat system not interconnected with each other. Moreover, the absence of similarity between the lake ice and the underlying permafrost suggested that the lake is perennially frozen based. The predominance of positive significant (p < 0.05) co‐occurrences among some fungal taxa allowed to postulate the existence of an ecological equilibrium in the habitats systems. The positive significant (p < 0.05) correlation between salt concentration, total organic carbon and pH, and some fungal taxa suggests that a few abiotic parameters could drive fungal diversity inside these ecological niches.

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Genetic and biochemical characterization of yeasts isolated from Antarctic soil samples

Cited by 29 publications

References 41 publications

Microbial ecology of full-scale wastewater treatment systems in the Polar Arctic Circle: Archaea, Bacteria and Fungi

Microbial ecology of full-scale wastewater treatment systems in the Polar Arctic Circle: Archaea, Bacteria and Fungi

Dietary effects on gut microbiota of the mesquite lizard Sceloporus grammicus (Wiegmann, 1828) across different altitudes

Intra‐ and inter‐cores fungal diversity suggests interconnection of different habitats in an Antarctic frozen lake (Boulder Clay, Northern Victoria Land)

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