Related Experiment Video

Updated: Aug 2, 2026

Fluorescence Time-lapse Imaging of the Complete S. venezuelae Life Cycle Using a Microfluidic Device
11:30

Fluorescence Time-lapse Imaging of the Complete S. venezuelae Life Cycle Using a Microfluidic Device

Published on: February 28, 2016

[Regulation of spore-formation in Streptomyces galbus mutants]

O V Efremenkova, L N Anisova, A S Khokhlov

    Mikrobiologiia
    |January 1, 1980
    PubMed

    More Related Videos

    Efficient Sporulation of Saccharomyces cerevisiae in a 96 Multiwell Format08:54

    Efficient Sporulation of Saccharomyces cerevisiae in a 96 Multiwell Format

    Published on: September 17, 2016

    Visual and Microscopic Evaluation of Streptomyces Developmental Mutants08:42

    Visual and Microscopic Evaluation of Streptomyces Developmental Mutants

    Published on: September 12, 2018

    Related Concept Videos

    Endospores and Sporulation01:20

    Endospores and Sporulation

    Endospores are specialized, dormant cells primarily formed by Gram-positive bacteria, including Bacillus and Clostridium, enabling survival under extreme environmental conditions. Due to their unique composition and formation process, these structures are highly resistant to physical and chemical insults, such as extreme heat, ultraviolet and ionizing radiation, desiccation, and toxic chemicals. Rare instances of endospore-like structures have also been observed in some Gram-negative bacteria,...
    Gene Regulation During Sporulation01:17

    Gene Regulation During Sporulation

    Sporulation is a complex developmental process that allows certain Gram-positive bacteria, such as Bacillus subtilis and Clostridium species, to survive extreme environmental conditions. This process is tightly regulated by a series of signaling cascades and transcriptional controls, ensuring the formation of a highly resistant endospore.Sporulation is triggered by unfavorable conditions, such as nutrient depletion, and is governed by a phosphorelay system. One of the sensor kinases, such as...
    Stringent Response in E. coli01:23

    Stringent Response in E. coli

    Bacterial growth is closely tied to nutrient availability, with cells proliferating exponentially under favorable conditions and entering a stationary phase when resources become scarce. This transition is mediated by a regulatory mechanism known as the stringent response, which allows bacteria to adapt to nutrient deprivation by modulating gene expression and metabolic activity.During nutrient scarcity, intracellular amino acid levels decline. It results in the accumulation of uncharged tRNAs...
    Other Stress Responses in Bacteria01:30

    Other Stress Responses in Bacteria

    Bacteria have global regulatory systems that control several types of stress mechanisms. These include Pho regulon and the heat shock response, which are essential systems for environmental adaptation, such as nutrient limitation and proteotoxic stress. The Pho regulon and the heat shock response exemplify bacterial resilience, enabling rapid adaptation to fluctuating environmental conditions.Pho RegulonBacteria require phosphorus for essential cellular processes, including nucleic acid...
    Bioreactor Controls-III01:22

    Bioreactor Controls-III

    Strain improvement is a foundational strategy in industrial microbiology aimed at maximizing microbial productivity, particularly because natural isolates typically yield commercially valuable products in very low concentrations. Although optimizing the culture medium and environmental conditions can improve yields, these adjustments are inherently limited by the organism’s genetic potential. As a result, the focus shifts toward genetic modifications to enhance biosynthetic capacity. The...
    Regulation of Bacterial Virulence01:28

    Regulation of Bacterial Virulence

    Pathogenic bacteria employ a range of regulatory mechanisms to modulate the expression of virulence genes in response to environmental and host-derived signals. These mechanisms ensure that virulence factors are expressed only under favorable conditions, thereby optimizing infection and survival strategies.Mechanisms of Virulence RegulationKey regulatory strategies include:Two-Component Systems: These consist of a membrane-bound sensor kinase and a cytoplasmic response regulator. Environmental...