Bacterial Profiling
Bacterial Profiling - Related Videos
09:31
Evaluation of Microbial Safety of Dairies using Bacterial Proteomic Profiling via MALDI Approach
0 Views •
Cited by 1 •
2025
This protocol enables rapid, cost-effective evaluation of microbial composition in dairy products by combining culturomics with MALDI-TOF MS. It delivers taxonomy results comparable to 16S rRNA sequencing with a shorter turnaround time than traditional culture methods.
08:29
Expression Profiling with Microarrays
0 Views •
2023
Microarrays are important tools for profiling gene expression, and are based on complementary binding between probes that are attached to glass chips and nucleic acids derived from samples. Using these arrays, scientists can simultaneously evaluate the expression of thousands of genes. In addition, the expression profiles of different cells or tissue types can be compared, allowing researchers to deduce how the expression of different genes change during biological processes, and thus gain...
07:34
Profiling the Bacterial Community of Fermenting Traminette Grapes during Wine Production using Metagenomic Amplicon Sequencing
0 Views •
Cited by 1 •
2023
Here, we present a protocol to describe amplicon metagenomic for determining the bacterial community of Traminette grapes, fermenting grapes, and final wine.
05:21
Bacterial Transformation - Student Protocol
0 Views •
2019
Bacterial Transformation ExpandIMPORTANT: In addition to wearing the appropriate personal protective equipment, be sure to take care to keep your face away from suspension cultures, and to avoid inhaling reagents. Do not touch your face while performing the experiment. Always wash your hands before and after every experiment. When you are ready to safely begin, check to make sure you have a tube or tubes of competent E. coli cells in your ice bucket. Then, transfer 50 µL from one of these tubes...
07:13
Using Topographic Maps to Generate Topographic Profiles
0 Views •
2023
Source: Laboratory of Alan Lester - University of Colorado Boulder Topographic maps are "plan-view" representations of Earth's three-dimensional surface. They are a standard type of map-view that provides an overhead, or aerial, perspective. Among the defining features of a topographic map are the contour lines that indicate locations of constant elevation. The elevation interval between the contour lines is dependent on the level of detail provided by the map and the kind of topography present.
FAQs
Sequence-specific markers can distinguish bacteria that are difficult or impossible to grow under the conditions used for culture-based isolation. By analyzing bacterial DNA or RNA, researchers can detect and differentiate organisms that might be missed by growth-dependent methods. This makes molecular profiling especially useful when studying complex samples or identifying members of a microbial community.
Culture-based isolation provides access to bacterial organisms that can be grown and examined through microscopy or biochemical testing. Molecular analysis instead uses bacterial DNA or RNA to identify organisms, including those that are difficult to culture. Comparing these approaches can broaden characterization by combining observable laboratory traits with sequence-based evidence of bacterial presence and identity.
Taxonomic identity alone does not show how prominently each bacterium occurs or what characteristics it may contribute. Measuring abundance describes the relative representation of organisms in a sample, while functional traits add information about their potential biological roles. In infection and microbiome studies, these dimensions help relate microbial shifts to inflammation, infection risk, and host responses.
A workflow typically examines a sample using one or more complementary approaches, such as culture-based isolation, microscopy, biochemical testing, or bacterial DNA and RNA analysis. The resulting information is used to characterize taxonomic composition, abundance, and functional traits. Selecting the combination of methods determines whether the investigation emphasizes growable organisms, difficult-to-culture bacteria, or broader community patterns.
In immunology and infection studies, profiling provides a way to associate individual pathogens or broader microbial communities with host immune responses. Researchers can examine whether particular bacterial patterns correspond with inflammation or disease severity, and whether changes in the microbiome relate to infection risk. These comparisons help connect microbial observations with biologically relevant host outcomes.
Bacterial profiling supports pathogen surveillance and diagnosis by characterizing which bacteria are present in a sample and how they are represented. It also contributes to studies of antimicrobial resistance and treatment outcomes, allowing microbial findings to be considered alongside clinical or experimental responses. This information can guide investigations of therapeutic strategies and changing infection patterns.