Related Experiment Video
Updated: Jan 31, 2026
04:48
Control of Eating Behavior Using a Novel Feedback System
Published on: May 8, 2018
11.6K
Evolving in a Microbial Soup: You Are What They Eat
Michelle S Massaquoi1, Karen Guillemin2
1Institute of Molecular Biology, University of Oregon, Eugene, OR 97403, USA.
Developmental Cell
|December 19, 2018
Summary
Host nutrient levels, like iron and glucose, significantly influence microbe interactions. This research shows how these variations can shift an enteric pathogen
Area of Science:
- Microbiology
- Developmental Biology
- Host-Microbe Interactions
Background:
- Genetic programs guide animal and plant development.
- Evolutionary histories with microbes shape these developmental programs.
- Host physiological conditions can mediate host-microbe interactions.
Purpose of the Study:
- To investigate how host nutrient variations impact host-pathogen interactions.
- To understand the constraints bacteria impose on host tissue development.
Main Methods:
- Analysis of host iron and glucose levels.
- Observation of host-enteric pathogen interactions.
- Assessment of tissue properties and developmental trajectories.
Main Results:
- Variations in host iron and glucose levels altered pathogen interactions.
- Pathogen interactions shifted from deadly to benign based on nutrient availability.
- Bacteria were shown to impose constraints on host tissue properties.
Conclusions:
- Host nutrient status is a critical factor in determining the outcome of host-pathogen interactions.
- Microbial interactions can significantly influence the developmental trajectories of host tissues.
Related Concept Videos
01:23Binge Eating Disorders
492
Binge eating disorder is a significant mental health condition characterized by recurrent episodes of excessive food consumption within a short period, accompanied by a perceived loss of control over eating behavior. Unlike occasional overeating, binge eating disorder is marked by distressing emotions such as guilt, shame, and anxiety following binge episodes. The disorder affects individuals across different ages and backgrounds, with profound implications for physical and psychological...
492
01:29Microbial Morphologies
2.7K
Bacterial and archaeal cells exhibit remarkable diversity in shape and structure, critical in their adaptability and functionality. Among bacteria, the most commonly observed shapes include cocci and bacilli. Cocci are spherical and may exist singly or in groupings such as pairs (diplococci), chains (streptococci), clusters (staphylococci), or tetrads. Bacilli, in contrast, are rod-shaped and can also occur as single cells, in pairs, or chains, depending on their environmental and genetic...
2.7K
01:23Microbial Fermentation
1.5K
Fermentation is a crucial anaerobic metabolic process that enables microbes to derive energy from sugar without relying on oxygen or an electron transport chain. This process is fundamental to various biological and industrial applications and is classified based on the metabolic products generated.Role of Pyruvate in FermentationPyruvate and its derivatives serve as key electron acceptors in fermentative pathways. The oxidation of NADH to regenerate NAD+ is essential for the continuation of...
1.5K
01:28Microbial Nutrition
1.2K
Organisms exhibit remarkable metabolic diversity, categorized based on how they acquire energy and carbon. These strategies enable survival in various ecological niches and are essential for maintaining energy flow and nutrient cycling within ecosystems.Energy and Carbon SourcesOrganisms are classified as phototrophs or chemotrophs based on energy acquisition. Phototrophs use light as their energy source, while chemotrophs rely on oxidizing chemical compounds. Further differentiation arises...
1.2K
01:24Microbial Classification System
1.1K
Classification is the process of organizing organisms into hierarchically inclusive groups based on their phenotypic similarities or evolutionary relationships. A species comprises one or more strains, and closely related species are grouped into genera. Genera are further classified into families, families into orders, orders into classes, and so forth, up to the domain level, which is the broadest taxonomic rank derived from a combination of phenotypic and genotypic data.The nomenclature of...
1.1K
01:27Microbial Growth Media
1.9K
Microbial growth media are essential tools in microbiology, providing the nutrients and conditions necessary to cultivate and study microorganisms. These media are categorized by their composition, consistency, and functional roles, enabling researchers to investigate microbial physiology, behavior, and interactions.Types and Consistencies of Growth MediaGrowth media can be solid, liquid, or semisolid. Solid media, often agar-based, allow visible colony growth for isolation and enumeration.
1.9K