A New Species and Eight New Records of Ascomycetes from Freshwater Niches in Korea.

Freshwater ascomycetes are fungi that play an important role in the decomposition of submerged plant debris in freshwater habitats. At present, approximately 3000 species of ascomycetes have been described from freshwater habitats. However, the number of fungi in freshwater habitats in South Korea is small, and many species are still completely unknown.

Dereplication of Sesquiterpene-Proline Conjugates and Phenalenones from sp. CNUFC-EML-48 Using Molecular Networking and Cytotoxicity Profiling.

The use of feature-based molecular networking (FBMN) for metabolomic analysis of the fungal strain sp. CNUFC-EML-48 resulted in the isolation of 17 secondary metabolites. These included four new sesquiterpene-proline conjugates, aculenamides A-D (-), and six new phenalenones (-).

A New Species and a New Record of from Freshwater Environment in Korea.

The genus belonging to order , comprises known wood pathogens that cause sapstain in timbers and wood degradation. However, this genus has been scarcely studied in Korea. Therefore, the current study was conducted to investigate the genus in freshwater environments as new habitat in Korea.

sp. nov., sp. nov. and sp. nov. isolated from UV-irradiated soil in Korea.

Three novel bacterial strains, 172403-2, BT310 and BT731, were isolated from UV-irradiated soil samples collected in South Korea. All strains are Gram-negative, aerobic, non-motile and grow at 20-35 °C, optimally at 30 °C and pH 7.0.

Cyclodepsipeptides and Fatty Acid Lactones from the Freshwater-Derived Fungus, , and Their Potential as Autophagy Activators.

Autophagy is a primary cellular mechanism that entails the degradation and recycling of impaired or redundant cellular constituents. It plays an essential role in maintaining cellular health and homeostasis. Dysfunction in autophagy has been implicated in a wide range of diseases, including cancer, cardiovascular diseases, and neurodegenerative diseases.

Exploring Diversity within and () in Korea.

is the most species-rich phylum of basal lineage fungi with a worldwide distribution. Its species constitute essential components of freshwater ecosystems. However, the diversity of this group in Korea remains understudied.

A New Species and Three New Records Belonging to and from Korea.

During an investigation of fungi of the orders and in Korea, a new species, sp. nov., and three new records, , , and , were found in soil and freshwater samples.

Descriptions of 19 Unrecorded Species Belonging to in Korea.

A survey of fungal diversity in soil and freshwater habitats in Korea isolated several species of the class . Morphological characteristics and multigene phylogenetic analyses showed that these species represented new records for Korea. Herein, we report the descriptions, illustrations, and molecular phylogeny of 19 species previously undescribed in Korea, including , , , , , , , , , , , , , , , , , , and

Aspergillus ullungdoensis sp. nov., Penicillium jeongsukae sp. nov., and other fungi from Korea.

Eurotiales fungi are thought to be distributed worldwide but there is a paucity of information about their occurrence on diverse substrates or hosts and at specific localities. Some of the Eurotiales, including Aspergillus and Penicillium species, produce an array of secondary metabolites of use for agricultural, medicinal, and pharmaceutical applications. Here, we carried out a survey of the Eurotiales in South Korea, focusing on soil, freshwater, and plants (dried persimmon fruits and seeds of Perilla frutescens, known commonly as shiso).

sp. nov., a novel actinobacterium with antifungal activity isolated from a coal mining site in Mongolia.

A novel filamentous actinobacterium designated strain 4-36 showing broad-spectrum antifungal activity was isolated from a coal mining site in Mongolia, and its taxonomic position was determined using polyphasic approach. Optimum growth occurred at 30 °C, pH 7.5 and in the absence of NaCl.

Additions to the Knowledge of the Fungal Order in Korea: Eight Undescribed Species.

is a relatively large order of , well-known for their ability to produce secondary metabolites with potential beneficial applications. To understand their diversity and distribution, different environmental sources including soil, freshwater, insect, and indoor air were investigated. Eight strains of were isolated and identified based on their morphological characters and a multi-gene phylogenetic analysis of the ITS, , , and regions.

A New Species and Five New Records of (, ) Belonging to Section in Korea.

is a genus within the phylum (class , order , family ). Many species in this genus are known to produce diverse secondary metabolites with great potential for agricultural, medical, and pharmaceutical applications. During a survey on fungal diversity in the genus in Korea, six strains were isolated from soil, indoor air, and freshwater environments.

Axl alleviates DSS-induced colitis by preventing dysbiosis of gut microbiota.

Axl is a tyrosine kinase receptor, a negative regulator for innate immune responses and inflammatory bowel disease (IBD). The gut microbiota regulates intestinal immune homeostasis, but the role of Axl in the pathogenesis of IBD through the regulation of gut microbiota composition remains unresolved. In this study, mice with DSS-induced colitis showed increased Axl expression, which was almost entirely suppressed by depleting the gut microbiota with antibiotics.

sp. nov., isolated from ginseng soil.

A novel Gram-stain-negative, aerobic, rod-shaped, non-motile, cream-coloured strain (G124) was isolated from ginseng soil collected in Yeongju, Republic of Korea. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain G124 belongs to a distinct lineage within the genus (family , order and class ). Strain G124 was closely related to THG-T61 (98.

Discovery of a New (, ) from Invertebrate Niche and Its Phylogenetic Status and Physiological Characteristics.

Species of are important opportunistic fungal pathogens in the order that are isolated from various sources such as soil, indoor air, food products, feces, and decaying vegetables. In recent years, species of have become an emerging causative agent of invasive mucormycosis. In Europe and USA, are the second and third most common causal fungus of mucormycosis, respectively.

Description of sp. nov. and sp. nov., Two Novel Basidiomycetous Yeast Species Isolated from Soil in Korea.

Two strains, YP344 and YP579 were isolated from soil samples in Pocheon City, Gyeonggi Province, South Korea. The strains YP344 and YP579 belong to the genus and , respectively. The molecular phylogenetic analysis showed that the strain YP344 was closely related to Strain YP344 differed by four nucleotide substitutions with no gap (0.

Uncharted Diversity and Ecology of () in Freshwater Environments.

The fungal-like family (), also called "water mold," includes mostly aquatic saprophytes as well as notorious aquatic animal pathogens. Most studies on have been biased toward pathogenic species that are important to aquaculture rather than saprotrophic species, despite the latter's crucial roles in carbon cycling of freshwater ecosystems. Few attempts have been made to study the diversity and ecology of ; thus, their ecological role is not well-known.

Hymenobacter lucidus sp. nov., and Hymenobacter nitidus sp. nov., isolated from soil.

Two novel bacterial strains BT178 and BT635 were isolated from soil collected in Gyeonggi province, Republic of Korea. Both strains were Gram-negative, rod-shaped circular, and had convex, glistening, pink-colored colonies. Phylogenetic analysis based on 16S rRNA gene sequences showed that each of the strains BT178 and BT635 formed an individual lineage within the genus Hymenobacter (family Hymenobacteraceae, order Cytophagales, class Cytophagia, phylum Bacteroidetes).

Two New Species of () from Soil in an Upland Forest in Northeastern Brazil with an Identification Key of from the Americas.

During a survey of from a forest located in Pernambuco state, Brazil, two new species were discovered and described based on morphological and molecular data (internal transcribed spacer and large subunit ribosomal DNA sequences). Both species were characterized as unbranched sporangiophores and sporangia with columellae of varied shapes forming. Multispored sporangiola were frequent, whereas unispored sporangiola were rare.

Seven Undescribed Species from Different Niches in Korea.

An investigation of species of the genus present in arthropod, freshwater, and soil led to the discovery of seven undescribed species in Korea. Based on their morphological characteristics and molecular phylogeny analyses using a combined data set of β-tubulin () and calmodulin () sequences, the isolated strains CNUFC IGS2-5, CNUFC YJ1-19, CNUFC WD27, CNUFC U8-70, CNUFC AS2-24, CNUFC S32-1, and CNUFC U7-48, were identified as , . , .

Discovery of Three New Species Associated with Cricket Insects in Korea.

Species in the genus have a worldwide distribution and are isolated from various substrata and hosts, including soil, dung, freshwater, and fruits. However, their diversity from insects is still much too little explored. The aim of this study was to characterize three new species of : sp.

In vivo imaging of invasive aspergillosis with F-fluorodeoxysorbitol positron emission tomography.

Invasive aspergillosis is a critical complication in immunocompromised patients with hematologic malignancies or with viral pneumonia caused by influenza virus or SARS‑CoV‑2. Although early and accurate diagnosis of invasive aspergillosis can maximize clinical outcomes, current diagnostic methods are time-consuming and poorly sensitive. Here, we assess the ability of 2-deoxy-2-F-fluorosorbitol (F-FDS) positron emission tomography (PET) to specifically and noninvasively detect Aspergillus infections.

Two New Species and Three New Records of Ascomycetes in Korea.

During a survey of plant-inhabiting fungi and water niches from Korea, noteworthy fungi were collected; among them, two new species, sp. nov. and sp.

New Species and Eight Undescribed Species Belonging to the Families Aspergillaceae and Trichocomaceae in Korea.

During a survey of fungal diversity associated with insects, mud, soil, and freshwater niches in different areas in Korea, nine interesting fungal strains were isolated. Based on their morphological characteristics and molecular phylogeny analyses, using a combined data set of β-tubulin (), calmodulin (), and second largest subunit of RNA polymerase () sequences, the strains CNUFC AM-44, CNUFC JCW3-4, CNUFC S708, CNUFC WT202, CNUFC AS1-29, CNUFC JCW3-5, CNUFC JDP37, and CNUFC JDP62 were identified as , , , , . , , , and .