Freshwater Fungi as a Source of Chemical Diversity: A Review

El‐Elimat, Tamam; Raja, Huzefa A.; Figueroa, Mario; Sharie, Ahmed H. Al; Bunch, Rick; Oberlies, Nicholas H.

doi:10.1021/acs.jnatprod.0c01340

Cited by 34 publications

(25 citation statements)

References 165 publications

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“…Freshwater ascomycetes occur on submerged or partially submerged substrata in lotic and lentic aquatic habitats. The teleomorphic ascomycetes are more dominant on submerged wood, while the anamorphic ascomycetes occur on submerged leaf litter (El-Elimat et al 2021).…”

Section: Case Studies From Freshwater Ascomycetesmentioning

confidence: 98%

“…A significant number of freshwater species are teleomorphic ascomycetes (Shearer et al 2007;Hu et al 2013;Shearer and Raja 2021). About 738 species of freshwater ascomycetes are known from their teleomorph, belonging to approximately 170 genera (El-Elimat et al 2021;Shearer and Raja 2021). There are around 83,305 described teleomorphic ascomycetes (Species Fungorum 2021) and if there are 738 described freshwater teleomorphic ascomycetes, it is estimated that there are 19,490-33,664 aquatic teleomorphic ascomycetes based on "2.2-3.8 figure".…”

Section: Case Studies From Freshwater Ascomycetesmentioning

confidence: 99%

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Predicting global numbers of teleomorphic ascomycetes

et al. 2022

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Sexual reproduction is the basic way to form high genetic diversity and it is beneficial in evolution and speciation of fungi. The global diversity of teleomorphic species in Ascomycota has not been estimated. This paper estimates the species number for sexual ascomycetes based on five different estimation approaches, viz. by numbers of described fungi, by fungus:substrate ratio, by ecological distribution, by meta-DNA barcoding or culture-independent studies and by previous estimates of species in Ascomycota. The assumptions were made with the currently most accepted, “2.2–3.8 million” species estimate and results of previous studies concluding that 90% of the described ascomycetes reproduce sexually. The Catalogue of Life, Species Fungorum and published research were used for data procurement. The average value of teleomorphic species in Ascomycota from all methods is 1.86 million, ranging from 1.37 to 2.56 million. However, only around 83,000 teleomorphic species have been described in Ascomycota and deposited in data repositories. The ratio between described teleomorphic ascomycetes to predicted teleomorphic ascomycetes is 1:22. Therefore, where are the undiscovered teleomorphic ascomycetes? The undescribed species are no doubt to be found in biodiversity hot spots, poorly-studied areas and species complexes. Other poorly studied niches include extremophiles, lichenicolous fungi, human pathogens, marine fungi, and fungicolous fungi. Undescribed species are present in unexamined collections in specimen repositories or incompletely described earlier species. Nomenclatural issues, such as the use of separate names for teleomorph and anamorphs, synonyms, conspecific names, illegitimate and invalid names also affect the number of described species. Interspecies introgression results in new species, while species numbers are reduced by extinctions.

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Section: Case Studies From Freshwater Ascomycetesmentioning

confidence: 98%

Section: Case Studies From Freshwater Ascomycetesmentioning

confidence: 99%

Predicting global numbers of teleomorphic ascomycetes

et al. 2022

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“…Thus, a vast number of species remain to be discovered and described in aquatic habitats. Additionally, the importance of these organisms in secondary metabolite production has also been recognized [ 24 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

Two New Species and Three New Records of Ascomycetes in Korea

et al. 2022

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During a survey of plant-inhabiting fungi and water niches from Korea, noteworthy fungi were collected; among them, two new species, Paracamarosporium noviaquum sp. nov. and Phyllosticta gwangjuensis sp. nov., are described based on morphology and multi-gene phylogenies. Paracamarosporium noviaquum was characterized by its production of 1-celled and 2-celled conidia, forming conidiomata on only potato dextrose agar medium. Phyllosticta gwangjuensis was characterized by conidia hyaline, ovoid to ellipsoid shape, rounded at both ends, containing numerous guttulae or with a single large central guttule. Additional species were identified as Cosmospora lavitskiae, Monochaetia cameliae , and Roussoella doimaesalongensis , which are reported as new record species from Korea. Detailed descriptions and illustrations of these taxa are provided herein.

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“…They are categorized into three broader groups based on their reliance on aquatic habitats, extent of adaptation and activity: indwellers, periodic immigrants and versatile immigrants. Indwellers are completely adapted and continuously active aquatic fungi and their whole life cycle of conidium production, release and dispersal typically occurs under water (El-Elimat, et al 2021). The periodic immigrants are less adapted to aqueous habitats and occur across both terrestrial and aquatic environments and are periodically active.…”

Section: Introductionmentioning

confidence: 99%

A metagenomic view on fungal diversity in freshwater lakes

Sanyal

Kluge

Redondo

et al. 2022

Preprint

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Fungi are essential components in a wide range of ecosystems and while major efforts have been spent on disentangling the diversity and functional roles of fungi in terrestrial environments, our knowledge about aquatic fungi is lagging. To address this knowledge gap, we explored meta-genomes from 25 lakes from the arctic and boreal zone and one tropical reservoir with the aim of describing the community structure of fungi and fungi-like organisms (Oomycota). A second ob-jective was to identify possible environmental factors influencing the composition of the fungal communities. Our results show that the main fungal phyla and orders are the same across all the lakes despite the differences in geographic location and prevailing climate. Still, there was differ-ential distribution of more highly resolved taxa across the lakes that accordingly featured distinct communities, possibly caused by differential availability of carbon substrates in the lakes. A more detailed classification of sequences related to the pathogenic Oomycota genus Phytophthora clear-ly demonstrated that while technologies now exist for sequencing entire microbial communities in great detail, we are still severely limited by insufficient coverage of eukaryotic sequences and genomes in public databases.

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Freshwater Fungi as a Source of Chemical Diversity: A Review

Cited by 34 publications

References 165 publications

Predicting global numbers of teleomorphic ascomycetes

Predicting global numbers of teleomorphic ascomycetes

Two New Species and Three New Records of Ascomycetes in Korea

A metagenomic view on fungal diversity in freshwater lakes

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