1,072 results match your criteria: "United Graduate School of Agricultural Science[Affiliation]"

Microorganisms Capable of Producing Polysaccharides from D-Xylose.

J Appl Glycosci (1999)

November 2022

1 Department of Subtropical Biochemistry and Biotechnology, Faculty of Agriculture, University of the Ryukyus.

In recent years, the importance of biomass utilization has increased, but it has not been effectively exploited. In particular, it is difficult to use hemicellulose, the second most abundant biopolymer of biomass. Therefore, in order to promote the utilization of hemicellulose, we screened for microorganisms capable of producing polysaccharides from D-xylose.

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Chronic sleep disorders (CSD) comprise a potential risk factor for metabolic and cardiovascular diseases, obesity and stroke. Thus, the identification of biomarkers for CSD is an important step in the early prevention of metabolic dysfunctions induced by sleep dysfunction. Diagnostic saliva samples can be easily and noninvasively collected.

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Male-killing mechanisms vary between species.

Front Microbiol

November 2022

Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), Tsukuba, Japan.

Male-killing, a male-specific death of arthropod hosts during development, is induced by (Mollicutes) endosymbionts of the Citri-Poulsonii and the Ixodetis groups, which are phylogenetically distant groups. induces male-killing in (Diptera) using the Spaid toxin that harbors ankyrin repeats, whereas little is known about the origin and mechanisms of male-killing induced by Here, we analyzed the genome and the biological characteristics of a male-killing strain Hm in the moth (Tortricidae, Lepidoptera). Strain Hm harbored a 2.

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Paddy fields are a major source of atmospheric methane, a greenhouse gas produced by methanogens and consumed by methanotrophs in flooded soil. The inoculation of rice seeds with the bacterium Azoarcus sp. KH32C alters the rice root-associated soil bacterial community composition.

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Ornamentals come in a variety of shapes, sizes, and colors to suit a wide range of climates, landscapes, and gardening needs. Compared to demand, a shortage of plant materials and diversity force the search for solutions for their constant acquisition and improvement to increase their commercial value, respectively. In vitro cultures are a suitable solution to meet expectations using callus culture, somatic embryogenesis, protoplast culture, and the organogenesis of protocorm-like bodies; many of these techniques are commercially practiced.

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Article Synopsis
  • - The study examined how adding fatty acids (FAs) to instant rice noodles (IRN) impacts their texture, digestion, and retrogradation properties, noting that IRN samples had lower gelatinization enthalpy compared to the rice starch samples with FAs.
  • - Long-chain saturated FAs produced more organized structures in IRN, while unsaturated FAs showed the strongest interactions with rice starch, leading to lower crystallinity in IRN compared to starch-FAs complexes.
  • - Introducing FAs delayed the retrogradation of IRN and increased their resistant starch content, suggesting that starch-FA complexes could improve IRN’s texture and digestion characteristics significantly.
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The development of suppressive soil is an ideal strategy to sustainably combat soilborne diseases. Previously, the cultivation of Allium plants increased antagonistic bacteria populations in soil, alleviating Fusarium wilt of different crops. This study aimed to identify a compound produced by Allium plants that can induce bacteria-mediated soil suppressiveness toward Fusarium wilt.

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Identification of early biomarkers of stress is important for preventing mood and anxiety disorders. Saliva is an easy-to-collect and non-invasive diagnostic target. The aim of this study was to characterize the changes in salivary whole microRNAs (miRNAs) and metabolites in mice subjected to subchronic and mild social defeat stress (sCSDS).

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Genetic and physiological characterization of bacteria derived from nodules of leguminous plants in the exploration of biofertilizer is of paramount importance from agricultural and environmental perspectives. Phylogenetic analysis of the 16S rRNA gene of 84 isolates derived from Bangladeshi soils revealed an unpredictably diverse array of nodule-forming and endosymbiotic bacteria-mostly belonging to the genus . A sequence analysis of the symbiotic genes ( and ) revealed similarities with the 16S rRNA gene tree, with few discrepancies.

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Strigolactones (SLs) are phytohormones that play an essential role in plant-microbe interactions. The instability of SLs makes it challenging to use them for application to agriculture. In this study, we successfully produced a large amount of the 4-deoxyorobanchol (4DO), one of SLs, in the leaves of , using a transient expression system to express SL biosynthetic enzymes.

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Previously reported ()-5'--aminopropyl-2'-arabinofluoro-thymidine () and newly synthesized ()-5'--aminopropyl-2'-arabinofluoro-5-methyl-cytidine () analogs were incorporated into a series of antisense gapmers containing multiple phosphorothioate (PS) linkages and locked nucleic acids (LNAs) in their wing regions. The functional properties of the gapmers were further evaluated in vitro. Compared with the positive control, for the LNA-wing full PS gapmer without modification, it was revealed that each gapmer could have a high affinity and be thermally stable under biological conditions.

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In animal husbandry, diets should help in maintaining a healthy body condition, support reproduction, and promote species-specific longevity. It is recommended to feed folivorous primates kept in zoos a high-fiber diet, i.e.

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β-Carotene is an essential nutrient in cattle reproduction. The objective of this study was to evaluate the effect of β-carotene supplementation on ovarian activities throughout the estrous cycle in nonpregnant Japanese Black cows. The estrous cycles of eight nonpregnant Japanese Black cows were synchronized using a double synch protocol, and the cows were divided into two groups.

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The stem region of α1,6-fucosyltransferase FUT8 is required for multimer formation but not catalytic activity.

J Biol Chem

December 2022

The United Graduate School of Agricultural Science, Gifu University, Gifu, Japan; Institute for Glyco-core Research (iGCORE), Gifu University, Gifu, Japan. Electronic address:

Alpha-1,6-fucosyltransferase (FUT8) synthesizes core fucose in N-glycans, which plays critical roles in various physiological processes. FUT8, as with many other glycosyltransferases, is a type-II membrane protein, and its large C-terminal catalytic domain is linked to the FUT8 stem region, which comprises two α-helices. Although the stem regions of several glycosyltransferases are involved in the regulation of Golgi localization, the functions of the FUT8 stem region have not been clarified as yet.

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Article Synopsis
  • Depressive disorders are linked to chronic inflammation through the tryptophan-kynurenine pathway, and anti-inflammatory agents might help reduce depression risk.
  • A study explored the effects of the citrus flavonoid hesperidin, known for its anti-inflammatory properties, on this pathway using a mouse model with inflammation induced by lipopolysaccharide (LPS).
  • Hesperidin was effective in suppressing the Trp-Kyn pathway in the brain and alleviating some inflammatory symptoms, but it did not improve weight loss or other specific health markers in the LPS-inflamed mice.
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Strigolactones (SLs) are a plant hormone inhibiting shoot branching/tillering and a rhizospheric, chemical signal that triggers seed germination of the noxious root parasitic plant and mediates symbiosis with beneficial arbuscular mycorrhizal fungi. Identifying specific roles of canonical and noncanonical SLs, the two SL subfamilies, is important for developing -resistant cereals and for engineering plant architecture. Here, we report that rice mutants lacking canonical SLs do not show the shoot phenotypes known for SL-deficient plants, exhibiting only a delay in establishing arbuscular mycorrhizal symbiosis, but release exudates with a significantly decreased seed-germinating activity.

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Transcriptome Analysis of the Influence of High-Pressure Carbon Dioxide on under Sub-Lethal Condition.

J Fungi (Basel)

September 2022

Faculty of Applied Biological Science, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan.

High-pressure carbon dioxide (HPCD), a novel non-thermal pasteurization technology, has attracted the attention of scientists due to its high pasteurization efficiency at a lower temperature and pressure. However, the inactivation mechanism has not been well researched, and this has hindered its commercial application. In this work, we used a sub-lethal HPCD condition (4.

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Kishu-Narezushi is a spontaneously fermented food comprising fish, rice, and salt. During spontaneous fermentation, the microbiome may differ among batches, even when manufactured in the same way. In addition, analyses of changes in the chemical composition of the product are important for clarifying flavor characteristics.

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Scavenging is a common feeding behavior that provides ecosystem services by removing potentially infectious waste from the landscape. The importance of facultative scavenging is often overlooked, but likely becomes especially important in ecosystems without obligate scavengers. Here, we investigated the ecological function of vertebrate facultative scavengers in removing ungulate carcasses from Japanese forests that lack obligate scavengers.

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Fusarium species include important filamentous fungal pathogens that can infect plants, animals, and humans. Meanwhile, some nonpathogenic Fusarium species are promising biocontrol agents against plant pathogens. Here, we developed a genome editing technology using a vector-based CRISPR/Cas9 system for Fusarium oxysporum f.

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The secretion and metabolism of cumulus cells support fertilization in the bovine model.

Theriogenology

November 2022

Department of Animal Production Science, United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Japan; University Farm, Faculty of Agriculture, Utsunomiya University, Japan. Electronic address:

Article Synopsis
  • The cumulus oophorus surrounds mammalian eggs and is crucial for fertilization, but the specific role of its cell secretions remains under-researched.
  • Researchers hypothesized that secretions from bovine cumulus cells, along with reduced oxygen stress through metabolic changes, would enhance sperm fertilization capacity during IVF.
  • Their findings showed that cumulus cell secretions, particularly progesterone and hyaluronate, significantly improve sperm motility and fertilization rates, highlighting the importance of cumulus cells in both animal and human reproduction.
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The nodes of Ranvier are unmyelinated gaps in the axon, important for the efficient transmission of action potentials. Despite the identification of several glycoproteins involved in node formation and maintenance, glycans' structure and formation in the node remain unclear. Previously, we developed a recombinant lectin from the Clostridium botulinum neurotoxin complex, specific to the galactose and N-acetylgalactosamine terminal epitopes (Gg).

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, an alphaproteobacterial reproductive parasite, can cause profound mitochondrial divergence in insects, which might eventually be a part of cryptic speciation. is a cryptic species complex consisting of several morphospecies and/or haplotypes that are genetically different but morphologically indistinctive. However, little is known about the infection status in these tea and pests.

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Straightforward Synthesis of the Poly(ADP-ribose) Branched Core Structure.

ACS Omega

September 2022

Institute for Glyco-core Research (iGCORE), Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.

Poly(ADP-ribosyl)ation is a post-translational modification that produces poly(ADP-ribose) with a branched structure every 20-50 units; such branching structure has been previously suggested to be involved in regulating chromatin remodeling. To elucidate its detailed functions, we developed a straightforward method for the synthesis of the poly(ADP-ribose) branched core structure, α-d-ribofuranosyl-(1‴ → 2″)-α-d-ribofuranosyl-(1″ → 2')-adenosine 5',5'',5‴-trisphosphate , from 6-chloropurine ribofuranoside in 10 steps and 6.1% overall yield.

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Study into the chemical changes of tea leaf polyphenols during japanese black tea processing.

Food Res Int

October 2022

The United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu City 501-1193, Japan; Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu City 501-1193, Japan. Electronic address:

During the processing of black tea, enzymatic oxidation converts tea catechins into a complex mixture of oxidative products, including theaflavins, and thearubigins. In this study, ultra-performance liquid chromatography was carried out to analyze the tea extracts collected after each processing stage to clarify the quantitative changes in these compounds during black tea processing. It was found that the catechin content was significantly reduced during processing, and in particular between the later rolling and fermentation periods.

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