Yeasts in Continental and Seawater

Libkind, Diego; Buzzini, Pietro; Turchetti, Benedetta; Rosa, Carlos A.

doi:10.1007/978-3-319-62683-3_1

Cited by 10 publications

(9 citation statements)

References 163 publications

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“…Among them, the species Hortaea werneckii , Phaeotheca triangularis , Trimmatostroma salinum and Wallemia ichthyophaga are commonly found in hypersaline environments (Gunde‐Cimerman, Ramos, & Plemenitaš, ). A few yeasts were isolated from seawater and hypersaline environments, including diverse solar salterns, the Dead Sea and the Great Salt Lake (Libkind, Buzzini, Turchetti, & Rosa, ). Among them, Debaryomyces hansenii exhibits a remarkable halotolerance growing under NaCl concentration up to 25% (Butinar et al, ).…”

Section: Frequent Yeasts From Extreme Environments: Tough Survivorsmentioning

confidence: 99%

“…On the contrary, D. hansenii and Vishniacozyma victoriae are good examples of eurybiont species. The former grows under severe osmotic limiting conditions and is a part of the core community of saline and hypersaline environments, but this yeast is frequently found in other substrates such as salted food, tobacco, clinical samples, soils, aquatic sources and air (Botha, ; Buzzini, Turk, et al, ; Libkind et al, ; Suzuki, Prasad, & Kurtzman, ). The latter species has been originally described from an extreme environment, namely soil at Victoria Land in Antarctica.…”

Section: Global Diversity Of Extremophilic Yeasts: Know Your Heroesmentioning

confidence: 99%

“…Plemenitaš, 2009). A few yeasts were isolated from seawater and hypersaline environments, including diverse solar salterns, the Dead Sea and the Great Salt Lake(Libkind, Buzzini, Turchetti, & Rosa, 2017). Among them, Debaryomyces hansenii exhibits a remarkable halotolerance growing under NaCl concentration up to 25%…”

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confidence: 99%

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Extremophilic yeasts: the toughest yeasts around?

Buzzini

Turchetti

Yurkov

2018

Yeast

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Microorganisms are widely distributed in a multitude of environments including ecosystems that show challenging features to most life forms. The combination of extreme physical and chemical factors contributes to the definition of extreme habitats although the definition of extreme environments changes depending on one's point of view: anthropocentric, microbial-centric or zymo-centric. Microorganisms that live under conditions that cause hard survival are called extremophiles. In particular organisms that require extreme conditions are called true extremophiles while organisms that tolerate them to some extent are termed extremotolerant. Deviation of temperature, pH, osmotic stress, pressure and radiation from the common range delineates extreme environments. Yeasts are versatile eukaryotic organisms that are not frequently considered the toughest microorganisms in comparison with prokaryotes. Nevertheless extremophilic or extremotolerant species are present also within this group. Here a brief description is provided of the main extreme habitats and the metabolic and physiological modifications adopted by yeasts depending on their adverse conditions. Additionally the main extremophilic and extremotolerant yeast species associated with a few extreme habitats are listed.

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Section: Frequent Yeasts From Extreme Environments: Tough Survivorsmentioning

confidence: 99%

Section: Global Diversity Of Extremophilic Yeasts: Know Your Heroesmentioning

confidence: 99%

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Extremophilic yeasts: the toughest yeasts around?

Buzzini

Turchetti

Yurkov

2018

Yeast

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“…Furthermore, opportunistic pathogenic yeasts have been isolated from surface water environments [79] with resistance observed towards most clinically used antifungal agents, given prolonged contact with residual pharmaceutical drugs [80]. Infection from these pathogenic yeasts may come easily through contact with or ingestion of contaminated surface water [81].…”

Section: Environmental Watersmentioning

confidence: 99%

Pharmaceutical Pollution: Azole Antifungal Drugs and Resistance of Opportunistic Pathogenic Yeasts in Wastewater and Environmental Water

Monapathi

Oguegbulu

Adogo

et al. 2021

Applied and Environmental Soil Science

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The occurrence of residual antifungal agents through indiscriminate prophylactic use and inappropriate disposal has been reported in wastewater treatment plants (WWTPs), surface water, and groundwater environments. Opportunistic pathogenic aquatic yeasts develop resistance to commonly used antifungal agents through continued exposure to residual antifungal agents in environmental waters. This poses a major public health concern. The present review attempts to provide a brief description of antifungal drugs, with a focus on the most widely used class of antifungal drugs, the azoles, as emerging contaminants in environmental water. Routes of exposure of azole antifungal drugs in wastewater treatment plants, surface water, and groundwater are discussed. The presence of pathogenic yeasts in environmental water, the associated azole resistance, and the risk of exposure to humans and microbiota are highlighted. Management actions needed to curtail the spread and minimise the risks are also indicated. Further research on the occurrence of antifungal agents in wastewater and environmental water is vital to better understand and mitigate the associated health-related risks.

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“…So far it has been recognised that beach sand harbours a great diversity of fungi including dermatophytes, dematiaceous fungi, plant- and insect-related fungi, halotolerant and xerotolerant fungi, and fungi related to anthropogenic pollution [ 13 ]. The filamentous genera Aspergillus , Cladosporium , Chrysosporium , Curvularia , Fusarium , Mucor , Penicillium , Rhizopus , Scedosporium , Scopulariopsis , Scytalidium , Stachybotrys , and Trichophyton usually prevailed [ 13 , 18 , 19 , 20 ] over the yeasts and yeast-like fungi Aureobasidium , Candida , Geotrichum , Exophiala , Metschnikowia , Rhodotorula , and Yarrowia [ 12 , 21 ]. Nevertheless, despite the diverse scientific approach and identification methods used, still little is known about the general structure of fungal communities in beach sand, in particular the identification of main core-genera and factors influencing their fluctuations, as well as the presence of possible indicator species, promoted after certain events.…”

Section: Introductionmentioning

confidence: 99%

Occurrence, Diversity and Anti-Fungal Resistance of Fungi in Sand of an Urban Beach in Slovenia—Environmental Monitoring with Possible Health Risk Implications

Babič

Gunde‐Cimerman

Breskvar

et al. 2022

JoF

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Beach safety regulation is based on faecal indicators in water, leaving out sand and fungi, whose presence in both matrices has often been reported. To study the abundance, diversity and possible fluctuations of mycobiota, fungi from sand and seawater were isolated from the Portorož beach (Slovenia) during a 1-year period. Sand analyses yielded 64 species of 43 genera, whereas seawater samples yielded 29 species of 18 genera. Environmental and taxonomical data of fungal communities were analysed using machine learning approaches. Changes in the air and water temperature, sunshine hours, humidity and precipitation, air pressure and wind speed appeared to affect mycobiota. The core genera Aphanoascus, Aspergillus, Fusarium, Bisifusarium, Penicillium, Talaromyces, and Rhizopus were found to compose a stable community within sand, although their presence and abundance fluctuated along with weather changes. Aspergillus spp. were the most abundant and thus tested against nine antimycotics using Sensititre Yeast One kit. Aspergillus niger and A. welwitschiae isolates were found to be resistant to amphotericin B. Additionally, four possible human pollution indicators were isolated during the bathing season, including Meyerozyma, which can be used in beach microbial regulation. Our findings provide the foundations for additional research on sand and seawater mycobiota and show the potential effect of global warming and extreme weather events on fungi in sand and sea.

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Yeasts in Continental and Seawater

Cited by 10 publications

References 163 publications

Extremophilic yeasts: the toughest yeasts around?

Extremophilic yeasts: the toughest yeasts around?

Pharmaceutical Pollution: Azole Antifungal Drugs and Resistance of Opportunistic Pathogenic Yeasts in Wastewater and Environmental Water

Occurrence, Diversity and Anti-Fungal Resistance of Fungi in Sand of an Urban Beach in Slovenia—Environmental Monitoring with Possible Health Risk Implications

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