Four new species of Dothideomycetes (Ascomycota) from Pará Rubber () in Yunnan Province, China.

The tropical areas in southern and south-western Yunnan are rich in fungal diversity. Additionally, the diversity of seed flora in Yunnan Province is higher than in other regions in China and the abundant endemic species of woody plants provide favourable substrates for fungi. Rubber plantations in Yunnan Province are distributed over a large area, especially in Xishuangbanna.

Morphological characteristics and phylogenetic evidence reveal two new species and the first report of (Pleosporaceae, Pleosporales) on dicotyledonous plants from China.

Two novel species were identified from dicotyledonous plants ( sp. and ) in China. The results were supported by morphological characters and Maximum Likelihood (ML) and Bayesian Inference (BI) analyses.

Diversity of Ascomycota in Jilin: Introducing Novel Woody Litter Taxa in .

has a high biodiversity worldwide on various hosts and is distributed in tropical and temperate regions. Woody litters collected in Changchun, Jilin Province, China, revealed a distinct collection of fungi in the family based on morphological and molecular data. Phylogenetic analyses of the concatenated matrix of the internal transcribed spacer (ITS) region, the large subunit (LSU) of ribosomal DNA, the RNA polymerase II subunit (2), the translation elongation factor 1-alpha (1-) and β-tubulin () genes indicated that the isolates represent and species based on maximum likelihood (ML), maximum parsimony (MP) and Bayesian analysis (BPP).

Fungal-Bacterial Networks in the Habitat of SongRong () and Driving Factors of Their Distribution Rules.

Soil origin, mycorrhizal plant partners and environmental factors affect the growth and development of SongRong (). In order to clarify the relationships of fungi-bacteria networks and various influence factors in the habitat of SongRong, we chose three collection sites with a pure forest (plot A without SongRong was used as the control sample site), mixed (plot B) and mixed with and (plot C). By using high-throughput sequencing, we obtained a total of 4930 fungal and 55501 bacterial amplicon sequence variants (ASVs) based on internally transcribed spacer ribosomal RNA (ITS rRNA) and 16S ribosomal RNA (16S rRNA) sequencing via the Illumina NovaSeq platform.

Antiproliferative and Cytotoxic Cytochalasins from Inhibit Actin Polymerization and Aggregation.

Laying the groundwork on preliminary structure-activity relationship study relating to the disruptive activity of cytochalasan derivatives on mammalian cell actin cytoskeleton, we furthered our study on the cytochalasans of the Dothideomycetes fungus, . A new cytochalasan analog triseptatin (), along with the previously described cytochalasans deoxaphomin B () and cytochalasin B (), and polyketide derivatives -4-hydroxy-6-deoxyscytalone () and 6-hydroxymellein () were isolated from the rice culture of . The structure of was elucidated through NMR spectroscopic analysis and high-resolution mass spectrometry (HR-ESI-MS).

Synopsis of and Introduction of Three New Taxa and One New Record from China.

, a diverse family in the order , is remarkable for its scleroplectenchymatous or plectenchymatous peridium cells. Four species were discovered and studied during the investigation of saprobic fungi from plant substrates in China. Novel taxa were defined using multiloci phylogenetic analyses and are supported by morphology.

Morphological and Phylogenetic Evidence Reveal Five New Telamonioid Species of () from East Asia.

Five new species, , , , and spp. nov., are proposed based on a combination of morphological and molecular evidence.

Fungal diversity notes 1512-1610: taxonomic and phylogenetic contributions on genera and species of fungal taxa.

This article is the 14th in the Fungal Diversity Notes series, wherein we report 98 taxa distributed in two phyla, seven classes, 26 orders and 50 families which are described and illustrated. Taxa in this study were collected from Australia, Brazil, Burkina Faso, Chile, China, Cyprus, Egypt, France, French Guiana, India, Indonesia, Italy, Laos, Mexico, Russia, Sri Lanka, Thailand, and Vietnam. There are 59 new taxa, 39 new hosts and new geographical distributions with one new combination.

Fungal diversity notes 1387-1511: taxonomic and phylogenetic contributions on genera and species of fungal taxa.

This article is the 13th contribution in the Fungal Diversity Notes series, wherein 125 taxa from four phyla, ten classes, 31 orders, 69 families, 92 genera and three genera are treated, demonstrating worldwide and geographic distribution. Fungal taxa described and illustrated in the present study include three new genera, 69 new species, one new combination, one reference specimen and 51 new records on new hosts and new geographical distributions. Three new genera, (), ( genus ) and () are introduced based on distinct phylogenetic lineages and unique morphologies.

COX Inhibitory and Cytotoxic Naphthoketal-Bearing Polyketides from .

Axenic fermentation on solid rice of the saprobic fungus afforded two new highly oxidized naphthalenoid polyketide derivatives, sparticatechol A () and sparticolin H () along with sparticolin A (). The structures of and were elucidated on the basis of their NMR and HR-ESIMS spectroscopic data. Assignment of absolute configurations was performed using electronic circular dichroism (ECD) experiments and Time-Dependent Density Functional Theory (TDDFT) calculations.

Catechol-Bearing Polyketide Derivatives from .

Sparticols A () and B (), two catechol-bearing naphthalenedioxy derivatives, were isolated from the submerged culture of the Spanish broom inhabiting Dothideomycetes fungus, The structures of and were established by NMR spectroscopic analysis and high-resolution mass spectrometry. The 8 absolute configuration of their β-hydroxy functionalities was determined by ECD-TDDFT. Both compounds exhibited inhibitory activity against with an MIC value of 66.

Reappraisal of in Dictyosporiaceae, Pleosporales: Introducing sp. nov. and comb. et gen. nov. Based on Morphology and Phylogeny.

is a poorly known genus, and currently, no DNA sequence data are available to ascertain its proper phylogenetic placement and evolutionary relationships with other bitunicate fungi. To date, there are only two species accepted in the genus. During our ongoing research study of bambusicolous fungi in southwest China and Thailand, a fungus associated with stromata of sp.

Volatile Constituents of Endophytic Fungi Isolated from with Descriptions of Two New Species of .

Algae, bacteria, and fungi, as well as higher plants, produce a wide variety of secondary metabolites known as natural products. Natural products are well known as remarkable sources of many therapeutic agents. The genus is a wood-decaying fungus that belongs to family Xylariaceae.

Integrating Different Lines of Evidence to Establish a Novel Ascomycete Genus and Family (, ) in .

A novel genus, is introduced herein for a distinct species, , collected as a saprobe on dead bamboo culms from a freshwater stream in Thailand. is distinct in its trabeculate pseudoparaphyses and ascospores with longitudinally striate wall ornamentation. A new family, is introduced to accommodate .

Alpha-Glucosidase- and Lipase-Inhibitory Phenalenones from a New Species of Originating from Thailand.

The alpha-glucosidase- and lipase-inhibitory activities of three phenalenones (-) and one phenylpropanoid () from the ethyl acetate extracts of a sp. are described. They represent the first secondary metabolites reported from the genus .

Sparticolins A-G, Biologically Active Oxidized Spirodioxynaphthalene Derivatives from the Ascomycete .

To explore the chemical diversity of metabolites from new species of Dothideomycetes, the ex-type strain of was investigated. Seven highly oxygenated and functionalized spirodioxynaphthalene natural products incorporating carboxyalkylidene-cyclopentanoid (-), carboxyl-functionalized oxabicyclo[3.3.

Biofilm Inhibitory Abscisic Acid Derivatives from the Plant-Associated Dothideomycete Fungus, sp.

species are well recorded from both monocotyledons and dicotyledons. As part of a research program to discover biologically active compounds from plant-associated Dothideomycetes in Thailand, the strain sp. (MFLUCC 17-2059), which represents an undescribed species, was isolated from Kurz, fermented in yeast-malt medium and explored for its secondary metabolite production.

Two novel species of (Parabambusicolaceae, Pleosporales) with their phoma-like asexual morphs.

The monotypic genus (Parabambusicolaceae, Pleosporales) was introduced for a microfungus isolated from a collection of dried stems of a dicotyledonous plant in Thailand. In this paper, we introduce two novel species, and , in this genus. Their asexual morphs comprise conidiomata with aseptate and hyaline conidia.