Arvimicrobium flavum gen. nov., sp. nov., A Novel Genus in the Family Phyllobacteriaceae Isolated From Forest Soil.

During the study of microbial diversity of forest soil in the Republic of Korea, a yellow pigment-producing, Gram-stain-negative, rod-shaped, motile bacterium was isolated and designated as strain 1W2. This strain grew at temperature of 10-37 °C, at pH of 5.0-9.

Widespread admixture blurs population structure and confounds Lake Trout (Salvelinus namaycush) conservation even in the genomic era.

Intraspecific variation is important for species' long-term persistence in changing environments. Conservation strategies targeting intraspecific variation often rely on the identification of management or policy units below the species level based on biological differences among populations. To identify management units, this paper examines intraspecific divergence of Lake Trout (Salvelinus namaycush) in Great Slave Lake (GSL), Canada, using low-coverage whole-genome sequencing data.

Complete genome sequence of strain JD2-26, a potential pollutant-reducing bacterium isolated from a municipal solid waste landfill facility.

We report here the complete genome sequence of strain JD2-26 isolated from a municipal solid waste landfill facility. The genome consists of a 6.32-Mbp chromosome and a plasmid having a total of 6,100 genes, including 5,914 coding sequences.

CRISPR/Cas9-induced knockout of tumor necrosis factor-alpha-type I augments viral infection in zebrafish.

Tumor necrosis factor-alpha (TNF-α) is a pleiotropic cytokine with critical roles in inflammation, cell survival, and defense. As a member of the TNF superfamily, it exerts its effects by binding to transmembrane receptors and triggering various downstream signaling pathways. Although TNF-α's involvement in antiviral responses in mammals is well-established, its role in teleost remains poorly understood.

Rosmarinic Acid Ameliorates Extract-Induced Atopic Dermatitis-like Skin Inflammation by Activating the Nrf2/HO-1 Signaling Pathway.

Atopic dermatitis (AD) is one of the most common chronic inflammatory skin diseases. AD pathogenesis is associated with increased oxidative stress, impairment of the skin barrier, and activation of the immune response. Rosmarinic acid (RA), a caffeic acid ester, is known for its anti-inflammatory and antioxidant properties.

Metabolic Engineering of for Xylose Utilization from Cellulosic Biomass.

Cellulosic biomass hydrolysates are rich in glucose and xylose, but most microorganisms, including , are unable to utilize xylose effectively. To address this limitation, we engineered a strain optimized for xylose metabolism through the xylose oxidoreductase pathway and promoter optimization. A promoter library with varying strengths was used to fine-tune the expression levels of the , , and genes, resulting in a strain with a strong promoter for and weaker promoters for and .

Evaluation of B-1662 for biological control of red pepper anthracnose and apple bitter rot diseases in Korea.

Fungi are the prominent phytopathogens that have significant impact on the productivity of agriculture worldwide. species have been extensively studied for the production of various bioactive metabolites. These metabolites have been used as biocontrol agents for the management of diseases caused by phytopathogenic fungi.

gene integration into regulatory networks via interaction with conserved genes in peach.

genes can evolve "from scratch" from noncoding sequences, acquiring novel functions in organisms and integrating into regulatory networks during evolution to drive innovations in important phenotypes and traits. However, identifying genes is challenging, as it requires high-quality genomes from closely related species. According to the comparison with nine closely related genomes, we determined at least 178 genes in "baifeng".

Thalassotalea aquiviva sp. nov., and Thalassotalea maritima sp. nov., Isolated from Seawater of the Coast in South Korea.

Two novel bacterial strains, 273M-4 and Sam97, were isolated from seawater in the Yellow Sea, Muan-gun, South Korea, and identified as members of the genus Thalassotalea. Both strains were Gram-stain-negative, aerobic, rod-shaped, non-motile, non-flagellated, and oxidase- and catalase-positive. Phylogenetic analysis based on 16S rRNA gene sequences showed that strains 273M-4 and Sam97 were most closely related to Thalassotalea ponticola KCTC 42155, with sequence similarities of 97.

A new species of Janiralata Menzies, 1951 (Isopoda: Asellota, Janiridae) from Korea.

A new isopod species, Janiralata kwangsooi sp. nov., from Dokdo Island located in the East Sea off the Korean Peninsula is described here.

The genus Coenagrion Kirby, 1890 (Odonata: Coenagrionidae) in the Russian part of the Caucasus.

Distribution, characters and habitats of Coenagrion spp. in the Russian part of the Caucasus is considered, chiefly by the authors' own data. There are seven species, of which C.

Nine new species of the genus Pholcus Walckenaer (Araneae: Pholcidae) from South Korea.

Nine new species belonging to the Pholcus phungiformes-group are described from Korea, viz., Pholcus chugok Lee & Lee, sp. nov.

Two new species of Pseudocrangonyx (Amphipoda: Pseudocrangonyctidae) from the hyporheic zones in South Korea.

Pseudocrangonyx Akatsuka & Komai, 1922, is the most diverse group of subterranean amphipods in the groundwater communities of Far East Asia and is related to the biogeographic origin and evolution of subterranean amphipod fauna in the region. In this study, we describe two new subterranean species of pseudocrangonyctid amphipods, P. seomjinensis sp.

Synergistic Effect of Polyglycerol and DMSO for Long-Term Cryopreservation of Species.

Herein, we present a significant advancement in long-term cryopreservation techniques for microalgae species using a combination of linear polyglycerol (PG) and dimethyl sulfoxide (DMSO). The technique was tested on three species: , , and , which showed long-term viability and recovery rates superior to those when treated with a traditional cryoprotectant only. While DMSO alone enabled high cell recovery rates for all species after 1 week of cryopreservation, the rates for some of them dropped below 50% after 26 weeks of cryopreservation.

Changes in nutritional compositions and digestive enzyme inhibitions of isoflavone-enriched soybean leaves at different stages (drying, steaming, and fermentation) of food processing.

Isoflavone-enriched soybean leaves (IESLs) were processed for drying, steaming, and fermentation, and bioactive compounds and biological activities were analyzed. During food processing, the content of fatty acids, water-soluble vitamins, total phenolics, total flavonoids, and isoflavone-aglycones increased from dried IESLs (DrIESLs) to fermented IESLs (FeIESLs). Especially, oleic acid (53.

Supplementation of Parachlorella sp. in feed promote the gut microbiome colonization and fecal IgA response of broiler in both early and late period.

This study evaluated the effects of Parachlorella sp. KSN1 (PA) supplementation on the gut microbiota and intestinal immunity of broilers of different ages. A total of 180 Ross 308 broiler chicks were weighed and divided into early (1 to 10 days post hatch) and late (11 to 28 days post hatch) periods, with six replicates of 10 chicks per cage assigned to two dietary groups.

Holstein × Montbéliarde-sired F1 generation crossbred female calves have an increased cellular immune response potential compared with purebred Holsteins.

It is well known that crossbreds show many advantages over purebreds in improving calf health traits, but the immunological factors responsible for this heterosis remain largely unclear. The objective of this study was to compare the cellular immune responses and antibodies of Holstein (HO) and Montbéliarde-sired × Holstein (MH) F1 generation female calves, and investigate the effects of crossbreeding on the immunity. Fifty three-month-old healthy female calves (25 HO, 25 MH) were selected meticulously in a farm with the same criteria.

Complete genome sequence of a methanotrophic bacterium, strain 22M6SE5-12 isolated from a freshwater sediment environment.

We assembled the complete genome of strain 22M6SE5-12 isolated from a freshwater sediment in South Korea. The genome consists of a 4.36-Mbp chromosome and two plasmids and has 3,961 coding sequences, 12 rRNA genes, and 55 tRNA genes.

Systematics of cybaeid spiders endemic to the Japanese Archipelago, and their historical biogeographic implications (Araneae: Cybaeidae).

The epigean and subterranean spiders of the genus Cybaeus L. Koch, 1868 are distributed in the Holarctic, and are highly diversified in western North America and Japan. More than 100 species have been described from the Japanese Archipelago and several species assemblages have also been recognised among the Japanese Cybaeus based on their morphological similarities.

Exploration of New Drug Candidate Derived from Antioxidants of Korean Native Halophytes: Control of with Antipathogenic Activity.

The rise of antibiotic-resistant bacteria poses a significant challenge to the treatment of bacterial infections, necessitating the development of novel antibiotics or strategies to preserve the efficacy of existing ones. This study investigates the role of oxidative stress modulation in the pathogenicity of multidrug-resistant (MDR) bacterial strains, aiming to identify potential avenues for new drug design. Specifically, the anti-biofilm effects of crude extracts and fractions from seven halophyte species native to Jeju Island, South Korea, were evaluated against ATCC 17978.

Identification of two postharvest ripening regulatory models in kiwifruit: based on plant hormones, physiology, and transcriptome analysis.

Kiwifruit (Actinidia spp.), celebrated for its unique flavor and rich nutritional content, is a globally popular fruit. This fruit requires post-harvest ripening before consumption.