Mycology最新文献

The genus Albatrellus is an important group of stipitate terrestrial fungi in the order Russulales. Some species in the genus form ectomycorrhizae, mostly with trees of Pinaceae; some are well-known edible mushrooms. However, its diversity and biogeography are unclear. Taxonomic and phylogenetic studies on Albatrellus were carried out by morphological examination, which included detailed observations of the fruiting body, spore shape and size, and other key features, together with potential hosts. These observations were then compared and analysed using multi-locus molecular phylogenetic analyses, including the internal transcribed spacer regions (ITS), the large subunit nuclear ribosomal RNA gene (nLSU), the translation elongation factor 1-α gene (tef1), the largest subunit of RNA polymerase II (rpb1), the second largest subunit of RNA polymerase II (rpb2), the small subunit mitochondrial rRNA gene (mtSSU), and the small subunit of the nuclear ribosomal RNA gene (nucSSU). The results demonstrated that the species of Albatrellus formed eight clades. Nine new species are described and illustrated, and two new combinations are proposed. A total of 38 species are accepted in Albatrellus worldwide. Of those species, 26, 7, and 8 species are distributed in Asia, Europe, and North America, respectively. The divergence time indicated that the maximum crown age of Albatrellus was approximately 70.5 million years ago, and East Asia and North America are the likely ancestral areas. Dispersal and differentiation to other continents occurred during the late Paleocene and Miocene. Three kinds of dispersal routes are proposed: East Asia and Europe, East Asia and North America, and Europe and North America.

A multigene phylogeny of the Inocybe alienospora group is presented based on analyses of ITS, 28S, and rpb2 nucleotide data. Four major subclades and three additional independent lineages were identified in the I. alienospora group. Two species with superficial similarities with the I. alienospora group, viz, I. multicoronata and I. elata, however, were not nested within the I. alienospora group. Inocybe sect. Leptocybe is proposed to accommodate the I. alienospora group in a more formal classification system. As such, sect. Leptocybe now includes 12 documented species and seven new species described in this work. The seven new species include I. aprica sp. nov., I. casuarinoides sp. nov. I. haikouensis sp. nov., three species associated with Casuarina from tropical China; also I. heteromorpha, a species associated with fagaceous trees from tropical China; and I. aurescens sp. nov., I. juji sp. nov., and I. peppa sp. nov., three species associated with fagaceous trees from subtropical China. In addition, new geographical data for I. carpinicola and I. acutata are reported. The East Asian species I. acutata and the neotropical species I. lasseri were confirmed as members of sect. Leptocybe. A key to the 19 species in sect. Leptocybe is also provided.

China has a complex and diverse forest ecological environment, which breeds abundant forest macrofungi, including some edible, medicinal, and poisonous species. During the investigations of macrofungi in the Saihanba National Nature Reserve, North China, we collected abundant specimens of Agaricales and Polyporales within the Agaricomycetes. Based on the morphological characters and molecular evidence of DNA sequences including the internal transcribed spacer (ITS) regions, the large subunit of nuclear ribosomal RNA gene (nLSU), the small subunit of mitochondrial rRNA gene (mtSSU), the small subunit of nuclear ribosomal RNA gene (nuSSU), the largest subunit of RNA polymerase II (RPB1), the second largest subunit of RNA polymerase II gene (RPB2), the β-tubulin gene (TUB), and the translation elongation factor 1-α gene (TEF1), this study identifies ten species of Agaricales and Polyporales new to science, viz. Cyanosporus subpopuli, Gelatinofungus betulina, Lycoperdon pseudoperlatum, Macrocystidia hebeiensis, Mycena subbrunnea, M. subpura, M. variispora, M. violocea-ardesiaca, Picipes griseus, and Pleuroflammula hebeiensis. Detailed morphological descriptions, fruiting bodies, and microscopic structure diagrams of these ten novel species are provided.

Heavy metal contamination has severe impacts on the natural environment. The currently existing physico-chemical methods have certain limitations, restricting their wide-scale application. The use of biological agents like bacteria, algae, and fungi can help eliminate heavy metals without adversely affecting flora and fauna. Due to their inherent ability to withstand adverse environmental conditions, nowadays, mycoremediation approaches are receiving considerable attention for heavy metal removal from contaminated sites. In this review, we emphasised the role of white rot fungi in remediation of heavy metal along with different factors influencing biosorption, effects on exposed fungi, and the mechanisms involved. Bibliometric analysis tools have been applied to literature search and trend analysis of the research on white rot fungi-mediated heavy metal removal. Annual growth rates and average citations per document are 5.08% and 35.48, respectively. Phanerochaete chrysosporium, Pleurotus ostreatus, and Trametes versicolor have been widely explored for the remediation of heavy metals. In addition to providing some prospects, the review also highlighted a few limitations, including inconsistent removal and effects of environmental factors influencing the functioning of white rot fungi. Overall, white rot fungi have been found to have immense potential to be widely utilised for sustainable remediation of heavy metal-contaminated environments.

The Hymenochaetales is an order with most species as wood-inhabiting fungi that have high phylogenetic complexity and morphological diversity. Species in this order play important roles in forest ecosystems and include wood decomposers, pathogens, and those that form ectomycorrhizal associations. However, we have limited knowledge of the patterns of large-scale evolutionary history of the order. In this study, using 171 genomes, including 113 newly assembled, we reconstructed the phylogenomic relationships, divergence times, biogeographic patterns, morphological evolution of basidiomata, and patterns of speciation/extinction in the Hymenochaetales. The phylogenomic relationships of 12 families within the Hymenochaetales suggested that 10 families can be accepted, and 2 families rejected. Molecular clock dating analyses suggested that the Hymenochaetales possibly started a rapid family-wide and genus-wide radiation during the early Cretaceous to late Jurassic and Cretaceous, respectively. Reconstruction of the ancestral state implied that Hymenochaetales probably originated from the temperate regions of Asia, with the basidiomata of the common ancestor likely being a corticioid species that rapidly transformed between the early Cretaceous and late Jurassic, coinciding with radiations at the family level. Furthermore, we detected a gradually increasing trend of speciation, extinction, and net diversification rates. We provided large-scale genomes of the Hymenochaetales and revealed evolutionary history patterns, which are key to understanding the evolution of fungi.

This is the third paper in the series Catalogue of fungi in China that aims to systematically and promptly publish Chinese fungal species. In this paper of the series, we focus on macrofungi from the southern border area of Xizang, a previously less concerned region. A total of 15 new species in six orders, 11 families, and 12 genera from Agaricomycetes, Basidiomycota are described. Both morphological and phylogenetic analyses support the identity of these new species and their taxonomic placements. In addition, one new combination Trechispora cryptomerioides is proposed. We hope that the third paper in the series Catalogue of fungi in China will draw more attention to reporting Chinese fungal diversity in the border areas of Xizang and other special geographic regions besides the aim of this series itself.

Fonsecaea monophora is one of the common pathogenic species of Chromoblastomycosis (CBM). Antimicrobial photodynamic therapy (aPDT) shows promise as a new treatment for CBM. In this study, we evaluated the effectiveness of COP1T-HA which is a porous organic cage and aPDT against Fonsecaea spp. in vitro.

Sarcodon mushrooms are esteemed as a rare and highly valuable resource for both culinary and medicinal purposes. Ancient medical classics have documented their beneficial effects on conditions such as indigestion, loss of appetite, and neurological disorders. Modern phytochemical research into their secondary metabolites has led to the discovery of numerous bioactive compounds with significant biological activities. Despite notable achievements in the study of the chemical composition and bioactivity of Sarcodon mushrooms, a comprehensive understanding of these findings has been lacking. This review provides an exhaustive summary of the advancements in the phytochemistry of Sarcodon mushrooms, as well as the biological and pharmacological activities of the isolated compounds and crude extracts derived from Sarcodon over the past nine decades. A total of 100 secondary metabolites isolated from these mushrooms have been classified into five major categories based on their chemical structures, which exhibit bioactivities such as anti-tumour, neurotrophic, and neuroprotective, antioxidant, anti-inflammatory, antimicrobial, and hypoglycaemic properties. The aim of this study is to establish a scientific foundation for future research in drug discovery, biotechnological development, and the exploration of functional foods involving Sarcodon mushrooms.

Contamination of agricultural and industrial products by Aspergillus section Circumdati becomes a true problem, especially, because a lot of species in this section can yield ochratoxins and other toxins. In this study, morphological criteria and partial calmodulin gene were used to identify 34 strains belonging to Aspergillus section Circumdati isolated from Vitis vinifera and Calotropis procera plants. The population is characterised by A. insulicola, A. ochraceopetaliformis, A. ochraceus, and A. pseudoelegans. The polyketide synthase (pks) gene involved in ochratoxins (OTA) production was investigated by Aopks1, 2 and AoLc35-12L, R primers. Fifteen strains belonging to A. ochraceus were positive for pks gene, whilst A. insulicola, A. ochraceopetaliformis, and A. pseudoelegans were negative. All tested strains were able to produce ochratoxin A with different levels of 0.020-53 ppm except one isolate of A. ochraceus (IAEMAo6). The green synthesised ZnO-NPs have a significant inhibitory effect on OTA production by A. insulicola and A. pseudoelegans.

A survey on the diversity of wood-decay fungi in southeast Xizang was carried out from 2019 to 2023. Based on morphology, ecology, biogeography, and molecular biology, 558 species, belonging to three classes, 15 orders, 57 families, and 177 genera, were identified. One new species, Epithele miscanthi, is described. Species composition analysis showed that there were fifteen dominant families with more than 10 species. These families include 459 species, accounting for 82.26% of the total species found. Thirty-three genera with five or more species are treated as dominant genera, and 325 species were included in these genera, accounting for 58.24% of the total species. Among these, 313 species (56.09%) occurred on angiosperm wood only, 168 species (30.11%) on gymnosperm wood only, 45 species (8.06%) on both angiosperm and gymnosperm wood, 17 species (3.05%) on monocotyledons only, and only one species, Hymenochaete rheicolor, grew on both monocotyledons and dicotyledons. The highest number of species, 266 (47.67%), were found on fallen trunks, followed by fallen branches, rotten wood, stumps, dead standing trees, living trees, and charred wood with 175, 123, 116, 82, 57, and 4 species, respectively. In addition, 456 species cause a white rot and 85 species cause a brown rot, accounting for 81.72% and 15.23% of our studied species, respectively. Statistics were also made on the rotting type and the number of edible or medicinal fungi.