Preparation of Small Extracellular Vesicles Using Sequential Ultrafiltration with Regenerated Cellulose Membranes of Different Molecular Weight Cutoffs: A Study of Morphology and Size by Electron Microscopy.

There is still room for improvement in the isolation and purification techniques for extracellular vesicles (EVs), particularly in the separation of exosomes (small EVs) from other membrane vesicles such as microvesicles and apoptotic bodies. Furthermore, it is crucial to establish preparation methods that preserve the intrinsic properties of EVs in this context. In this study, we focus on the isolation and preparation of small EVs, exosomes, from the culture supernatant of a human cell line.

Characterization of fungal carbonyl sulfide hydrolase belonging to clade D β-carbonic anhydrase.

Carbonyl sulfide hydrolase (COSase) is a unique enzyme that exhibits high activity towards carbonyl sulfide (COS) but low carbonic anhydrase (CA) activity, despite belonging to the CA family. COSase was initially identified in a sulfur-oxidizing bacterium and later discovered in the ascomycete Trichoderma harzianum strain THIF08. The COSase from T.

Recent Advancements in Imaging Techniques for Individual Extracellular Vesicles.

Extracellular vesicles (EVs), secreted from most cells, are small lipid membranes of vesicles of 30 to 1000 nm in diameter and contain nucleic acids, proteins, and intracellular organelles originating from donor cells. EVs play pivotal roles in intercellular communication, particularly in forming niches for cancer cell metastasis. However, EVs derived from donor cells exhibit significant heterogeneity, complicating the investigation of EV subtypes using ensemble averaging methods.

Genetic Analysis of and Polymorphisms and Their Associations with the Egg Production Traits of Bangladeshi Hilly Chickens.

In warm environments, thermoregulation in poultry is controlled by heat shock protein 70 (HSP70), whose expression is controlled by heat shock factor 3 (HSF3). Although the association between genetic polymorphisms in these genes and thermotolerance as well as reproductive traits has been extensively studied in mammals, the association has not yet been studied in poultry. This study aimed to explore the relationship between single-nucleotide polymorphisms (SNPs) in these genes and the egg production traits of Bangladeshi hilly chickens.

Root Colonization by Trichoderma atroviride Triggers Induced Systemic Resistance Primarily Independent of the Chitin-mediated Signaling Pathway in Arabidopsis.

Beneficial root endophytic fungi induce systemic responses, growth promotion, and induced systemic resistance (ISR) in colonized host plants. The soil application of chitin, a main component of fungal cell walls, also systemically induces disease resistance. Therefore, chitin recognition and its downstream signaling pathway mediate ISR triggered by beneficial fungi colonizing the root.

Diversity and plant growth promotion potential of endophytic fungi isolated from hairy vetch in Japan.

Hairy vetch ( Roth), a leguminous plant with nitrogen-fixing ability, is used as a cover crop and has the potential to suppress weeds and plant diseases. The microbial composition, particularly fungal endophytes, which may be related to the beneficial functions of this crop, has not been previously studied. In this study, we analyzed the diversity and function of culturable fungal endophytes associated with hairy vetch from eight locations across Japan.

Micromorphological features of brown rotted wood revealed by broad argon ion beam milling.

Brown rot fungi, the major decomposers in the boreal coniferous forests, cause a unique wood decay pattern but many aspects of brown rot decay mechanisms remain unclear. In this study, decayed wood samples were prepared by cultivation of the brown rot fungi Gloeophyllum trabeum and Coniophora puteana on Japanese coniferous wood of Cryptomeria japonica, and the cutting planes were prepared using broad ion beam (BIB) milling, which enables observation of intact wood, in addition to traditional microtome sections. Samples were observed using field-emission SEM revealing that areas inside the end walls of ray parenchyma cells were the first to be degraded.

Infection pattern of male-killing viruses alters phenotypes in the tea tortrix moth Homona magnanima.

Male-killing is a microbe-induced reproductive manipulation in invertebrates whereby male hosts are eliminated during development. In the tea tortrix moth Homona magnanima, Osugoroshi viruses 1‒3 (OGVs), belonging to Partitiviridae induce male-killing. The infection patterns of OGVs are diverse; however, how the influence of these patterns of host phenotypes remains largely unknown.

Redox control in arsenic accumulation with organic matter derived from a varved lacustrine deposit in the Jurassic accretionary complexes.

Oxidation states and distribution of arsenic (As) in annually laminated (varved) lacustrine deposits were analyzed with a seasonal resolution. This deposit was formed in the mid-Holocene landslide-dammed paleolake in the upper reaches of the Ane River, central Japan and the paleolake watershed consists of the Jurassic accretionary complexes (Mino-Tamba belt) including sedimentary and igneous rocks. In the outcrop, centimeter-to-decimeter-scale silty clay layers alternating with laminated layers are well developed.

Detoxification of hydrogen sulfide by synthetic heme model compounds.

Hydrogen sulfide is a lethal toxic gas that disrupts cellular respiration in the mitochondrial system. Currently, no antidote is available for the clinical treatment of hydrogen sulfide poisoning. In this study, we investigated the function of iron(III)porphyrin complexes as hydrogen sulfide scavengers in water and evaluated their potential use as therapeutic agents for hydrogen sulfide poisoning.

Chitin promotes equol production via n-acetylglucosamine in human fecal cultures.

Objectives: Equol is a metabolite of isoflavone. Here, we investigated the effect of dietary fiber on equol-producing microbiota.

Methods: Human feces was anaerobically cultured in Gifu Anaerobic Medium (GAM) containing 1 mg/L daidzein supplemented with 1 % (w/v) dietary fiber (pectin, chitin, or resistant starch [RS]).

Application of High-pressure Carbon Dioxide in Japanese Anchovy Waste Recycling by Enzymatic Hydrolysis.

Anchovy waste, a protein resource with high nutritional value and potential for recycling with a relatively high economic effect, is essential for the Sustainable Development Goals of the United Nations. Preventing microbial contamination during the recycling process, through enzymatic hydrolysis, ensures the safety of recycled products. High-pressure carbon dioxide is a novel non-thermal decontamination technology, which inactivates cells by breaking their membranes.

Contribution of irrigation to the production of maize, wheat, and rice in the major global producing countries.

This study offers new insights into the heterogeneity behind the widely accepted notion that irrigated crops contribute 40% to global food production. It also highlights the potential of irrigation to mitigate the negative effects of climate change on crop yields.

Efficacy of L-arabinose in managing cucumber Fusarium wilt and the underlying mechanism of action.

Background: Cucumber Fusarium wilt (CFW), triggered by Fusarium oxysporum f. sp. cucumerinum, leads to substantial yield reductions in global cucumber (Cucumis sativus L.

A cellulose-binding domain specific for native crystalline cellulose in lytic polysaccharide monooxygenase from the brown-rot fungus Gloeophyllum trabeum.

Cellulose-binding domains (CBDs) play a vital role in cellulose degradation by enzymes. Despite the strong ability of brown-rot fungi to degrade cellulose in wood, they have been considered to lack or have a low number of enzymes with CBD. Here, we report the C-terminal domain of a lytic polysaccharide monooxygenase from the brown-rot fungus Gloeophyllum trabeum (GtLPMO9A-2) functions as a CBD, classified as a new family of carbohydrate-binding module, CBM104.

Evaluation of host status of garlic varieties for a plant-parasitic nematode, , by using in vitro inoculation.

is a plant-parasitic nematode that severely damages garlic ( L.) in Japan. is detected in roots, bulbs, and outer bulb skins of garlic at harvest; however, the resistance of garlic to infection is not well understood.

Spatial variations in health service utilization among migrant population: a perspective on health equity.

As health equity becomes a prioritized goal in global health policy, extensive research has revealed that socio-economic and geographical factors jointly exacerbate barriers to medical service access for both internal and international migrant populations, further accelerating existing health disparities. This study explores healthcare service utilization disparities among internal migrants in China, a population profoundly affected by the country's economic reforms and urbanization since the late 1970s. These transformations have led to significant migratory movements and subsequent healthcare challenges for these populations.

Associations between intestinal lactic acid bacteria species and feeding habits of zoo animals.

Lactic acid bacteria are among the most important bacteria in the intestinal flora and often have beneficial effects on the host. It is known that the bacteria that compose the intestinal flora are influenced by the feeding habits of host animals, but there was a lack of knowledge about lactic acid bacteria. Therefore, also considering the use of select strains as probiotics, this study investigated the relationship between the feeding habits of zoo animals and intestinal species.

Triantaspirols A-C and Paraphaeolactone Cs from sp. KT4192: Sensitivity of CP3 in Distinguishing Close NMR Signals.

Hybridized spirobisnaphthalene derivatives, triantaspirols A-C (-) and paraphaeolactones C1 and C2 ( and ), were identified from the culture broth of the fungus sp. KT4192. The NMR spectra of and , as well as and , closely resembled each other, indicating that these were pairs of diastereomers.

Methanotrophic Communities and Cultivation of Methanotrophs from Rice Paddy Fields Fertilized with Pig-livestock Biogas Digestive Effluent and Synthetic Fertilizer in the Vietnamese Mekong Delta.

Biogas digestive effluent (BDE) has been applied to rice fields in the Vietnamese Mekong Delta (VMD). However, limited information is available on the community composition and isolation of methanotrophs in these fields. Therefore, the present study aimed (i) to clarify the responses of the methanotrophic community in paddy fields fertilized with BDE or synthetic fertilizer (SF) and (ii) to isolate methanotrophs from these fields.

Ergothioneine Improves Seed Yield and Flower Number through Gene Expression in .

Biostimulants are a new category of materials that improve crop productivity by maximizing their natural abilities. Out of these biostimulants, those that increase seed production are considered to be particularly important as they contribute directly to the increase in the yield of cereals and legumes. Ergothioneine (EGT) is a natural, non-protein amino acid with antioxidant effects that is used in pharmaceuticals, cosmetics, and foods.