Maximum temperature for growth and reproduction is similar in two soil isolates of Gaertneriomyces semiglobifer (Spizellomycetales, Chytridiomycetes) from different soil environments in north eastern New South Wales, Australia

Henderson, Linda; Ly, Mai-Anh; Robinson, Katie L.; Gleason, Frank H.; Lilje, Osu

doi:10.1127/nova_hedwigia/2017/0448

Cited by 2 publications

(1 citation statement)

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“…We detected a few fungi known for thriving at high temperatures (>30 °C), but not resilient enough to be considered heat tolerant fungi (with the ability to grow at 40 °C [41]). These included Exophiala opportunistica , a black yeast that also withstands high moisture and alkalinity and is commonly found in dishwashers [42, 43], Waitea circinata , a grass pathogen with optimal growth at 25-30 °C [44], Umbelopsis vinacea , a soil fungus that remains active up to 37 °C [45], Gaertneriomyces semiglobifer , a chytrid that also growth up to 37 °C [46], and Fusarium kerasplasticarum , an opportunistic animal pathogen that can also grow up to 37 °C. In addition, we found one unidentified species of Talaromyces , a genus that includes thermophilic and thermotolerant species [47].…”

Section: Resultsmentioning

confidence: 99%

Fungal community turnover along steep environmental gradients from geothermal soils in Yellowstone National Park

Bazzicalupo

Erlandson

Branine

et al. 2021

Preprint

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Geothermal soils offer unique insight into the way extreme environmental factors shape communities of organisms. However, little is known about the fungi growing in these environments and in particular how localized steep abiotic gradients affect fungal diversity. We used metabarcoding to characterize soil fungi surrounding a hot spring-fed thermal creek with water up to ~85 C and pH ~10 in Yellowstone National Park. No soil variable we measured determined fungal community composition. However, soils with pH >8 had lower fungal richness and different fungal assemblages when compared to less extreme soils. Saprotrophic fungi community profile followed more closely overall community patterns while ectomycorrhizal fungi did not, highlighting potential differences in the factors that structure these different fungal trophic guilds. In addition, in vitro growth experiments in four target fungal species revealed a wide range of tolerances to pH levels but not to heat. Overall, our results documenting fungal communities within a few hundred meters suggest stronger statistical power and wider sampling are needed to untangle so many co-varying environmental factors affecting such diverse species communities.

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