生物化学

分类

    现刊
    Histological Methods to Detect Early-stage Plant Defense Responses during Artificial Inoculation of Lolium perenne with Epichloë festucae
    羊茅人工接种多年生黑麦草过程中植物早期防御反应的组织学检测
    作者:Mostafa Rahnama, Damien J. Fleetwood and Richard D. Johnson日期:05/05/2021,浏览量:162,Q&A: 0
    [Abstract]

    Epichloë species form agriculturally important symbioses with many cool season grasses. To study these symbioses, such as the interaction of Epichloë festucae with perennial ryegrass (Lolium perenne), host plants can be infected by artificial inoculation of etiolated seedlings. This inoculation is performed by placing mycelium into an

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    Atomic Force Microscopy to Characterize Ginger Lipid-Derived Nanoparticles (GLDNP)
    原子力显微镜研究生姜脂质纳米颗粒(GLDNP)
    作者:Dingpei Long, Chunhua Yang, Junsik Sung and Didier Merlin日期:04/05/2021,浏览量:310,Q&A: 0
    [Abstract]

    We have demonstrated that a specific population of ginger-derived nanoparticles (GDNP-2) could effectively target the colon, reduce colitis, and alleviate colitis-associated colon cancer. Naturally occurring GDNP-2 contains complex bioactive components, including lipids, proteins, miRNAs, and ginger secondary metabolites (gingerols and shogaols).

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    Tracing Nitrogen Metabolism in Mouse Tissues with Gas Chromatography-Mass Spectrometry
    用气相色谱-质谱法追踪小鼠组织中的氮代谢
    作者:Rong Xu, Yekai Wang and Jianhai Du日期:02/20/2021,浏览量:1014,Q&A: 0
    [Abstract]

    Nitrogen-containing metabolites including ammonia, amino acids, and nucleotides, are essential for cell metabolism, growth, and neural transmission. Nitrogen metabolism is tightly coordinated with carbon metabolism in the breakdown and biosynthesis of amino acids and nucleotides. Both nuclear magnetic resonance spectroscopy and mass spectrometry

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    Ecdysone Quantification from Whole Body Samples of Drosophila melanogaster Larvae
    黑腹果蝇幼虫全身蜕皮激素的定量分析
    作者:Takashi Koyama and Christen K. Mirth日期:02/05/2021,浏览量:582,Q&A: 0
    [Abstract]

    Steroid hormones strictly control the timing of sexual maturation and final body size both in vertebrates and invertebrates. In insects, the steroid hormone ecdysone controls the timing of the molts between larval instars as well as the transition to metamorphosis. Growth during the final instar accounts for over 80% of the increase in final mass

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    Assessment of Diadenylate Cyclase and c-di-AMP-phosphodiesterase Activities Using Thin-layer and Ion Exchange Chromatography
    使用薄层和离子交换色谱评估二腺苷酸环化酶和c-di-AMP-磷酸二酯酶的活性
    作者:Andreas Latoscha, David Jan Drexler, Gregor Witte and Natalia Tschowri日期:01/05/2021,浏览量:765,Q&A: 0
    [Abstract]

    All living cells use cyclic nucleotides as second messengers for signal sensing and transduction. Cyclic di-3′,5′-adenosine monophosphate (c-di-AMP) is primarily involved in the control of bacterial and euryarcheal osmoadaptation and is produced by diadenylate cyclases from two molecules of ATP. Specific phosphodiesterases hydrolyze

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    Analysis of Isotopically-labeled Monogalactosyldiacylglycerol Molecular Species from [14C]Acetate-Labeled Tobacco Leaves
    [14C]醋酸标记烟叶中同位素标记的单半乳糖基二酰甘油分子组成分析
    作者:Hari Kiran Kotapati and Philip D. Bates日期:12/20/2020,浏览量:710,Q&A: 0
    [Abstract]

    Plant lipid metabolism is a dynamic network where synthesis of essential membrane lipids overlaps with synthesis of valuable storage lipids (e.g., vegetable oils). Monogalactosyldiacylglycerol (MGDG) is a key component of the chloroplast membrane system required for photosynthesis and is produced by multiple pathways within the lipid metabolic

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    Pipecolic Acid Quantification Using Gas Chromatography-coupled Mass Spectrometry
    哌啶酸的气相色谱-质谱定量分析
    作者:Keshun Yu, Huazhen Liu and Pradeep Kachroo日期:12/05/2020,浏览量:999,Q&A: 0
    [Abstract]

    Pipecolic acid (Pip), a non-proteinacious product of lysine catabolism, is an important regulator of immunity in plants and humans alike. For instance, Pip accumulation is associated with the genetic disorder Zellweger syndrome, chronic liver diseases, and pyridoxine-dependent epilepsy in humans. In plants, Pip accumulates upon pathogen infection

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    Rapid Isolation and Purification of Secreted Bacteriocins from Streptococcus mutans and Other Lactic Acid Bacteria
    变形链球菌及其他乳酸菌分泌细菌素的快速分离纯化
    作者:Marcus Cheng, Siew-Ging Gong and Céline M. Lévesque日期:11/20/2020,浏览量:1509,Q&A: 0
    [Abstract] Bacteriocins are small ribosomally synthesized antimicrobial peptides produced by some microorganisms including lactic acid bacteria (LAB), a group of Gram-positive bacteria (cocci, rods) expressing high tolerance for low pH. Bacteriocins kill bacteria rapidly and are biologically active at very low concentrations. Bacteriocins produced by LAB ...
    K+ Release Assay and K+ Measurement in Oocyte Assay
    卵母细胞K+释放量及K+水平测定
    作者:Hong Li日期:11/05/2020,浏览量:1014,Q&A: 0
    [Abstract] The Xenopus oocyte is a powerful system for the exogenous expression and functional characterization of plant membrane transport proteins. Until now, a number of potassium transporters and channels have been identified in oocytes expression system by the two-electrode voltage clamp technology. It is difficult to characterize K+ ...
    Quantification of Salivary Charged Metabolites Using Capillary Electrophoresis Time-of-flight-mass Spectrometry
    唾液中带电荷代谢产物的毛细管电泳与飞行时间质谱联用定量分析
    作者:Masahiro Sugimoto, Sana Ota, Miku Kaneko, Ayame Enomoto and Tomoyoshi Soga日期:10/20/2020,浏览量:1005,Q&A: 0
    [Abstract] Salivary metabolomics have provided the potentials to detect both oral and systemic diseases. Capillary electrophoresis time-of-flight-mass spectrometry (CE-TOFMS) enables the identification and quantification of various charged metabolites. This method has been employed to biomarker discoveries using human saliva samples, especially for various ...