Ringing bells: Morganella morganii fights for recognition
1College of Medicine, Jouf University, PO Box: 2014, Sakaka, Al Jouf, Saudi Arabia.
Public Health
|March 15, 2020
Summary
Morganella morganii infections are increasing globally, showing concerning resistance patterns. This opportunistic pathogen poses a significant threat, potentially becoming the next superbug due to evolving virulence and resistance.
Area of Science:
- Microbiology
- Infectious Diseases
- Antimicrobial Resistance
Background:
- Opportunistic microbial infections are rising globally.
- Morganella morganii (M. morganii) is an increasingly reported opportunistic pathogen.
- Understanding its spectrum of diseases, pathogenicity, and resistance is crucial.
Purpose of the Study:
- To review the diversified disease spectrum of M. morganii.
- To analyze the pathogenicity and resistance patterns of M. morganii.
- To assess the clinical significance and public health implications of M. morganii infections.
Main Methods:
- A comprehensive literature review was conducted.
- Articles were sourced from PubMed and Google Scholar.
- Search terms included 'M. morganii', 'prevalence', 'virulence factors', 'infections', 'resistance pattern', and 'genomics'.
Main Results:
- M. morganii is a significant clinical pathogen with increasing occurrence and resistance rates.
- Gene and plasmid transfer contribute to the evolution of virulence in M. morganii and other pathogens.
- Its broad host range suggests potential for novel infections.
Conclusions:
- M. morganii opportunism is globally increasing, with accumulating multidrug resistance genes.
- This leads to higher morbidity and mortality, complicating treatment.
- M. morganii must be recognized as a clinically significant pathogen for patient care and infection control.
Related Concept Videos
Defense Against Bacterial Pathogens
2.5K
The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against bacterial infections. It consists of various immune cells, each playing a specific role in the defense mechanism.
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
2.5K
Methods of Classification and Identification
842
Bacterial identification relies on a diverse array of techniques to classify and understand microorganisms, each tailored to uncover specific characteristics. Traditional morphological approaches, while still valuable, are limited for closely related or structurally simple organisms. Modern methods integrate biochemical, serological, genetic, and advanced molecular tools to achieve greater accuracy.Morphological and Biochemical TechniquesMorphological characteristics, such as cell shape and...
842
Bacterial Signaling
39.9K
Bacterial signaling can occur within bacteria (intracellular) or between bacteria (intercellular). At times, a group of bacteria behaves like a community. To achieve this, they engage in quorum sensing, the perception of higher cell density that causes changes in gene expression. Quorum sensing involves both extracellular and intracellular signaling. The signaling cascade starts with a molecule called an autoinducer (AI). Individual bacteria produce AIs that move out of the bacterial cell...
39.9K
Global Regulatory Systems
497
Global regulatory systems in bacteria enable rapid and coordinated responses to environmental changes by integrating sensory inputs with gene expression, ensuring efficient adaptation to fluctuating conditions. Key global regulatory mechanisms include regulons, two-component systems, sigma factors, and secondary messengers.Regulons and Global RegulatorsA regulon is a collection of genes and operons controlled by a common global regulator. These regulators enable bacteria to prioritize resource...
497
Other Unique Bacteria
322
Magnetic bacteria exhibit a directed movement called magnetotaxis, driven by structures called magnetosomes. These magnetosomes consist of chains of magnetic particles made of either magnetite (Fe₃O₄) or greigite (Fe₃S₄) and are organized in a linear conformation by a protein scaffold within invaginations of the cell membrane. The bacteria align along the north–south magnetic field lines, much like a compass needle. They are typically microaerophilic or anaerobic...
322
Bacterial Phylum Actinobacteria
523
Coryneform bacteria are gram-positive, aerobic, nonmotile rods that exhibit irregular, club-shaped, or V-shaped arrangements. Their V-shape results from snapping division, where the inner cell wall layer forms the cross-wall, while the outer layer remains intact until it ruptures on one side, causing the daughter cells to bend away.The primary genera are Corynebacterium and Arthrobacter. Corynebacterium includes diverse species, ranging from saprophytes to pathogens like Corynebacterium...
523


