Flagella Detection
Flagella Detection - Related Videos
01:18
Flagella and Motility in Bacteria
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2025
Flagella are specialized, thread-like structures that extend from a bacteria's cell envelope. They play a crucial role in motility and chemotaxis. Their structural organization and functioning exemplify sophisticated biological engineering, enabling bacterial survival and adaptability in diverse environments.Structure of the FlagellumA bacterial flagellum consists of three key components: the filament, the hook, and basal body. The filament, a long, helical structure composed of repeating...
07:59
Investigating Flagella-Driven Motility in Escherichia coli by Applying Three Established Techniques in a Series
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Cited by 17 •
2020
Many bacteria use flagella-driven motility to navigate their environment and colonize favorable surroundings both individually and as a collective. Demonstrated here is the use of three established methods that exploit motility as a selection tool to identify components/pathways contributing to swimming and swarming motility.
03:42
An Assay for Detecting Reactive Oxygen Species Production in Rice Tissues upon Immune Elicitation
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2025
This video demonstrates an assay for real-time detection of reactive oxygen species (ROS) production in rice tissues upon pathogen-associated molecular pattern (PAMP) elicitation. Cut sheath segments and leaf discs are exposed to a bacterial flagella-derived peptide functioning as a PAMP. Upon recognition of the peptide via pattern recognition receptors (PRRs) on plant cells, a rapid and transient production of ROS occurs, which is detected via a chemiluminescence assay.
09:10
Combination of Adhesive-tape-based Sampling and Fluorescence in situ Hybridization for Rapid Detection of Salmonella on Fresh Produce
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Cited by 17 •
2010
This protocol describes a simple adhesive-tape-based approach for sampling of tomato and other fresh produce surfaces, followed by rapid whole cell detection of Salmonella using fluorescence in situ hybridization (FISH).
07:19
Microfluidic Imaging Flow Cytometry by Asymmetric-detection Time-stretch Optical Microscopy (ATOM)
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Cited by 5 •
2017
This protocol describes the implementation of an asymmetric-detection time-stretch optical microscopy system for single-cell imaging in ultrafast microfluidic flow and its applications in imaging flow cytometry.
FAQs
Bacterial flagella move through fluid because rotary motors drive their motion. This mechanism differs from eukaryotic flagella, which bend through repeated, coordinated beating cycles rather than rotate. Recognizing this distinction helps researchers interpret movement correctly and select observations that match the organism’s cell type and motility system.
The number and placement of flagella provide structural clues about a microorganism’s biology. When combined with motility observations, these features can support classification and help relate cell structure to movement. Flagella detection therefore contributes more than a presence-or-absence result by describing how cellular organization may influence behavior.
Each approach reveals a different aspect of the same system. Light or electron microscopy can show structures, specialized stains and fluorescent labels can make them easier to identify, and motility assays indicate whether movement occurs. Combining these methods strengthens interpretation by connecting visible cellular features with functional behavior.
A workflow may begin with microscopy to examine cellular structures, followed by specialized staining or fluorescent labeling when additional visualization is needed. Researchers can then use a motility assay to evaluate movement and compare structural observations with behavior. The selected sequence depends on whether the goal is characterization, visualization, or functional assessment.
Researchers can apply flagella detection when classifying microorganisms, examining cell structure, or assessing changes in motility. Comparing detection results across conditions can show whether behavior or visible organization changes. The approach is especially useful when structural observations alone cannot indicate how actively cells move.
Motility observations provide a way to investigate how movement contributes to broader biological processes. In the relevant organism or cell system, researchers can examine whether flagellar structure or behavior changes in relation to colonization, development, or disease. This connects cellular-scale measurements with outcomes studied in biology and microbiology.