Psychrophilic fungi from the world's roof

Wang, M.; Jiang, Xianzhi; Wu, Wenping; Hao, Yan; Su, Yue; Cai, Lei; Xiang, Meichun; Liu, X.

doi:10.3767/003158515x685878

Cited by 51 publications

(37 citation statements)

References 92 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Compared with the polar regions, cold-adapted fungi in the Qinghai–Tibet Plateau were relatively poorly studied with the exception of the Chinese caterpillar fungus. A systemic survey on cold-adapted fungi had been conducted by Wang et al (2015), with more than 1400 fungal strains isolated and 150 species including 6 new species identified and described from glaciers on the Qinghai–Tibet Plateau. Among those species, Phoma sclerotioides and Pseudogymnoascus pannorum were the most dominant species.…”

Section: Cold-adapted Fungi and Their Living Strategiesmentioning

confidence: 99%

Living strategy of cold-adapted fungi with the reference to several representative species

et al. 2017

View full text Add to dashboard Cite

Our planet is dominant with cold environments that harbour enormously diverse cold-adapted fungi comprising representatives of all phyla. Investigation based on culture-dependent and independent methods has demonstrated that cold-adapted fungi are cosmopolitan and occur in diverse habitants and substrates. They live as saprobes, symbionts, plant and animal parasites and pathogens to perform crucial functions in different ecosystems. Pseudogymnoascus destructans caused bat white-nose syndrome and Ophiocordyceps sinensis as Chinese medicine are the representative species that have significantly ecological and economic significance. Adaptation to cold niches has made this group of fungi a fascinating resource for the discovery of novel enzymes and secondary metabolites for biotechnological and pharmaceutical uses. This review provides the current understanding of living strategy and ecological functions of cold-adapted fungi, with particular emphasis on how those fungi overcome the extreme low temperature and perform their ecological function.

show abstract

Section: Cold-adapted Fungi and Their Living Strategiesmentioning

confidence: 99%

Living strategy of cold-adapted fungi with the reference to several representative species

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Besides being considered as a saprobe, it was also reported as endophyte of Chorisodontium aciphyllum, a moss frequently found along the Antarctic coast in the Drake Passage region (Zhang et al, 2013). Morphological characteristics of the related isolates (cOTU97) indicate that this could possibly be a new species of the recently described genus Psychrophila (Wang et al, 2015).…”

Section: Discussionmentioning

confidence: 97%

“…New fungal lineages discovered from snow-covered habitats (Schadt et al, 2003;Porter et al, 2008) boosted the scientist's interest in SMCs of cold habitats. This resulted in the description of many new fungal taxa, like snow chytrids (Naff et al, 2013), psychrophilic yeasts (Margesin and Fell, 2008;Butinar et al, 2011) and coldtolerant filamentous fungi (Wang et al, 2015;Peintner et al, 2016). Novel fungal taxa associated with snow or cryoconite were because continuously detected (e.g., Edwards et al, 2013;Brown and Jumpponen, 2014), indicating that snow-covered soil also harbours a high diversity of unknown fungal taxa.…”

Section: Introductionmentioning

confidence: 99%

Emerging from the ice‐fungal communities are diverse and dynamic in earliest soil developmental stages of a receding glacier

Dresch

Falbesoner

Ennemoser

et al. 2019

Environmental Microbiology

View full text Add to dashboard Cite

SummaryWe used amplicon sequencing and isolation of fungi from in‐growth mesh bags to identify active fungi in three earliest stages of soil development (SSD) at a glacier forefield (0–3, 9–14, 18–25 years after retreat of glacial ice). Soil organic matter and nutrient concentrations were extremely low, but the fungal diversity was high [220 operational taxonomic units (OTUs)/138 cultivated OTUs]. A clear successional trend was observed along SSDs, and species richness increased with time. Distinct changes in fungal community composition occurred with the advent of vascular plants. Fungal communities of recently deglaciated soil are most distinctive and rather similar to communities typical for cryoconite or ice. This indicates melting water as an important inoculum for native soil. Moreover, distinct seasonal differences were detected in fungal communities. Some fungal taxa, especially of the class Microbotryomycetes, showed a clear preference for winter and early SSD. Our results provide insight into new facets regarding the ecology of fungal taxa, for example, by showing that many fungal taxa might have an alternative, saprobial lifestyle in snow‐covered, as supposed for a few biotrophic plant pathogens of class Pucciniomycetes. The isolated fungi include a high proportion of unknown species, which can be formally described and used for experimental approaches.

show abstract

“…1). The three most recent additions to the genus, T. ellipsoideum, T. globosum , and T. psychrophilum are the exceptions (20). These species were described from glacial soil from the Tibet Plateau and have elliptical and globose spores in the first two cases, and no reported spores in the third.…”

Section: Introductionmentioning

confidence: 99%

“…These studies represent diverse ecosystems, soils, and associated plants, ranging from domesticated crops (carrot (22) oilseed rape (23), ginseng (24), lettuce (25) and wheat (26, 27) to wild orchids (28) and mosses (29), from agricultural fields (30) to glacial and subglacial soils (31, 32), from sea level (33) to high altitudes (above 2600 m.a.s.l (34)), and spanning the globe from the Arctic (35) to the Antarctic (29, 36). Three psychrophilic species have been described from glacial soils from the Tibet Plateau (20)—one of the most extreme environments on earth; fungal extremophiles are of ecological and industrial interest due to their roles in ecosystem functioning and the secondary metabolites they produce (33, 37). Although hundreds of ITS sequences for Tetracladium -like fungi are available in public databases, it is not yet known how the fungi from these diverse environments are related to each other whether they fit within the genus Tetracladium as understood morphologically and phylogenetically at present.…”

Section: Introductionmentioning

confidence: 99%

Broad geographical and ecological diversity from similar genomic toolkits in the ascomycete genusTetracladium

Anderson

Marvanová

2020

Preprint

View full text Add to dashboard Cite

18The ascomycete genus Tetracladium is best known for containing aquatic hyphomycetes, which are 19 important decomposers in stream food webs. However, some species of Tetracladium are thought 20 to be multifunctional and are also endobionts in plants. Suprisingly, Tetracladium sequences are 21 increasingly being reported from metagenomics and metabarcoding studies of both plants and soils 22 world-wide. It is not clear how these sequences are related to the described species and little is 23 known about the non-aquatic biology of these fungi. Here, the genomes of 24 Tetracladium strains, 24 including all described species, were sequenced and used to resolve relationships among taxa and to 25 improve our understanding of ecological and genomic diversity in this group. All genome-sequenced 26 Tetracladium fungi form a monophyletic group. Conspecific strains of T. furcatum from both aquatic 27 saprotrophic and endobiont lifestyles and a putative cold-adapted clade are identified. Analysis of 28 ITS sequences from water, soil, and plants from around the world reveals that multifunctionality 29 may be widespread through the genus. Further, frequent reports of these fungi from extreme 30 environments suggest they may have important but unknown roles in those ecosystems. Patterns of 31 predicted carbohydrate active enzymes (CAZyme) and secondary metabolites in the Tetracladium 32 genomes are more similar to each other than to other ascomycetes, regardless of ecology, 33 suggesting a strong role for phylogeny shaping genome content in the genus. Tetracladium genomes 34 are enriched for pectate lyase domains (including PL3-2), GH71 α-1,3-glucanase domains and CBM24 35 α-1,3-glucan/mutan binding modules, and both GH32 and CBM38, inulinase and inulin binding 36 modules. These results indicate that these fungi are well-suited to digesting pectate and pectin in 37 leaves when living as aquatic hyphomycetes, and inulin when living as root endobionts. Enrichment 38 for α-1,3-glucanase domains may be associated with interactions with biofilm forming 39 microorganisms in root and submerged leaf environments. 42 important decomposers in stream ecosystems. The group is polyphyletic, its members are classified 43 in various orders and families of Ascomycetes and Basidiomycetes. These fungi thrive on leaves and 44 other plant debris that enter streams and other water bodies from terrestrial plants. In the process, 45 carbon and nutrients from recalcitrant plant compounds, including cellulose and lignin, become 46 accessible to diverse consumers in the stream food web (reviewed in (1, 2)). Up to 99% of the carbon 47 in some streams enters as plant debris that is largely inaccessible to aquatic consumers without the 48 degradative activity of these fungi (3, 4). Aquatic hyphomycete adaptations to stream environments 49 include the production of asexual propagules (conidia) while under water. These spores are often 50 branched, typically tetraradiate, or sigmoid, readily detachable from the fungus (e.g. from 51 conidiophores) and passi...

show abstract

Psychrophilic fungi from the world's roof

Cited by 51 publications

References 92 publications

Living strategy of cold-adapted fungi with the reference to several representative species

Living strategy of cold-adapted fungi with the reference to several representative species

Emerging from the ice‐fungal communities are diverse and dynamic in earliest soil developmental stages of a receding glacier

Broad geographical and ecological diversity from similar genomic toolkits in the ascomycete genusTetracladium

Contact Info

Product

Resources

About