Biological Sciences

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    Protocols in Current Issue
    High-throughput Method for Detecting Siderophore Production by Rhizosphere Bacteria
    Authors:  ShaoHua Gu, Wen Wan, ZhengYing Shao and Wei Zhong, date: 05/05/2021, view: 231, Q&A: 0

    Siderophores, a key substance that microorganisms produce to obtain iron under iron-limited conditions, play an important role in regulating interactions between beneficial bacteria and pathogenic bacteria. A large number of bacteria were isolated

    ...
    COVID-19 Sample Pooling: From RNA Extraction to Quantitative Real-time RT-PCR

    The COVID-19 pandemic requires mass screening to identify those infected for isolation and quarantine. Individually screening large populations for the novel pathogen, Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), is costly and

    ...
    Age, Wound Size and Position of Injury – Dependent Vascular Regeneration Assay in Growing Leaves

    Recurring damage to the aerial organs of plants necessitates their prompt repair, particularly their vasculature. While vascular regeneration assays for aerial plant parts such as the stem and inflorescence stalk are well established, those for leaf

    ...
    High-throughput Method for Detecting Siderophore Production by Rhizosphere Bacteria
    Authors:  ShaoHua Gu, Wen Wan, ZhengYing Shao and Wei Zhong, date: 05/05/2021, view: 231, Q&A: 0
    [Abstract]

    Siderophores, a key substance that microorganisms produce to obtain iron under iron-limited conditions, play an important role in regulating interactions between beneficial bacteria and pathogenic bacteria. A large number of bacteria were isolated from the rhizosphere, and we used the method presented here to assay the siderophore production by

    ...
    COVID-19 Sample Pooling: From RNA Extraction to Quantitative Real-time RT-PCR
    [Abstract]

    The COVID-19 pandemic requires mass screening to identify those infected for isolation and quarantine. Individually screening large populations for the novel pathogen, Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), is costly and requires a lot of resources. Sample pooling methods improve the efficiency of mass screening and consume

    ...
    Age, Wound Size and Position of Injury – Dependent Vascular Regeneration Assay in Growing Leaves
    [Abstract]

    Recurring damage to the aerial organs of plants necessitates their prompt repair, particularly their vasculature. While vascular regeneration assays for aerial plant parts such as the stem and inflorescence stalk are well established, those for leaf vasculature remain unexplored. Recently, we established a new vascular regeneration assay in

    ...
    Single or Repeated Ablation of Mouse Olfactory Epithelium by Methimazole
    Authors:  Sofia Håglin, Staffan Bohm and Anna Berghard, date: 04/20/2021, view: 505, Q&A: 0
    [Abstract]

    Odor-detecting olfactory sensory neurons residing in the nasal olfactory epithelium (OE) are the only neurons in direct contact with the external environment. As a result, these neurons are subjected to chemical, physical, and infectious insults, which may be the underlying reason why neurogenesis occurs in the OE of adult mammals. This feature

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    Development of a Chemical Reproductive Aging Model in Female Rats
    [Abstract]

    Women are born with an abundant but finite pool of ovarian follicles, which naturally and progressively decreased during their reproductive years until menstrual periods stop permanently (menopause). Perimenopause represents the transition from reproductive to non-reproductive life. It is usually characterized by neuroendocrine, metabolic and

    ...
    Screening for Lysogen Activity in Therapeutically Relevant Bacteriophages
    Authors:  Fernando L. Gordillo Altamirano and Jeremy J. Barr, date: 04/20/2021, view: 858, Q&A: 1
    [Abstract]

    Lysogenic phages can integrate into their bacterial host’s genome, potentially transferring any genetic information they possess including virulence or resistance genes, and are therefore routinely excluded from therapeutic applications. Lysogenic behavior is typically seen in phages that create turbid plaques or possess subpar bactericidal

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    Using the Cecal Ligation and Puncture Model of Sepsis to Induce Rats to Multiple Organ Dysfunction
    [Abstract]

    Sepsis is a dysregulated hyperinflammatory disease caused by infection. Sepsis leads to multiple organ dysfunction syndrome (MODS), which is associated with high rates of mortality. The cecal ligation and puncture (CLP) model has been widely used in animals and has become the gold-standard method of replicating features of sepsis in humans.

    ...
    Liposomal Clodronate-mediated Macrophage Depletion in the Zebrafish Model
    Authors:  Linlin Yang, Alison M. Rojas and Celia E. Shiau, date: 03/20/2021, view: 864, Q&A: 0
    [Abstract]

    The ability to conduct in vivo macrophage-specific depletion remains an effective means to uncover functions of macrophages in a wide range of physiological contexts. Compared to the murine model, zebrafish offer superior imaging capabilities due to their optical transparency starting from a single-cell stage to throughout larval development.

    ...
    Candida Biofilm Formation Assay on Essential Oil Coated Silicone Rubber
    [Abstract]

    Development of biofilm associated candidemia for patients with implanted biomaterials causes an urgency to develop antimicrobial and biofilm inhibitive coatings in the management of recalcitrant Candida infections. Recently, there is an increase in the number of patients with biofilm formation and resistance to antifungal therapy. Therefore, there

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    Simple Time-lapse Imaging for Quantifying the Hydrostatic Production of Oxygenic Photogranules
    Authors:  Esmee D. Joosten, Jérôme Hamelin and Kim Milferstedt, date: 10/05/2020, view: 975, Q&A: 0
    [Abstract] Oxygenic photogranules (OPGs) are dense, three-dimensional aggregates containing a syntrophic, light-driven microbial community. Their temporal and spatial development interests microbial ecologists working at the bioprocess engineering interface, as this knowledge can be used to optimize biotechnological applications, such as wastewater treatment ...



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