Related Experiment Video
Updated: Feb 12, 2026

Whole Genome Sequencing of Candida glabrata for Detection of Markers of Antifungal Drug Resistance
Published on: December 28, 2017
Draft Genome Sequence of Multidrug-Resistant Stenotrophomonas pavanii BWK1, Isolated from Mareca penelope Feces
Takehiko Kenzaka1, Katsuji Tani2
1Environmental Science and Microbiology, Faculty of Pharmacy, Osaka Ohtani University, Tondabayashi, Japan kenzat@osaka-ohtani.ac.jp.
Abstract:
Migratory birds serve as vectors by transmitting antibiotic-resistant bacteria across large distances. Here, we isolated a multidrug-resistant Stenotrophomonas pavanii strain, BWK1, from Mareca penelope feces. Analysis of the draft genome sequence of the isolated strain indicated that BWK1 harbors a class A beta-lactamase, metallo-beta-lactamase, and several multidrug efflux pumps.
Insights
Migratory birds can spread antibiotic resistance. Researchers found a multidrug-resistant bacterium, Stenotrophomonas pavanii BWK1, in duck feces, highlighting avian transmission risks.
Area of Science:
- Microbiology
- Environmental Science
- Genomics
Background:
- Migratory birds are recognized vectors for disseminating antibiotic-resistant bacteria globally.
- The increasing prevalence of antimicrobial resistance poses a significant threat to public health.
Purpose of the Study:
- To isolate and characterize multidrug-resistant bacteria from migratory birds.
- To investigate the genetic basis of antibiotic resistance in an isolated bacterial strain.
Main Methods:
- Isolation of bacteria from fecal samples of migratory birds (Mareca penelope).
- Whole-genome sequencing and analysis of the isolated bacterial strain.
- Identification of genes conferring antibiotic resistance and virulence factors.
Main Results:
- A multidrug-resistant Stenotrophomonas pavanii strain, designated BWK1, was successfully isolated from Mareca penelope feces.
- Genomic analysis revealed the presence of a class A beta-lactamase, a metallo-beta-lactamase, and multiple multidrug efflux pumps in strain BWK1.
- These genetic determinants confer resistance to a wide range of antibiotics.
Conclusions:
- Migratory birds, such as Mareca penelope, can act as reservoirs and disseminators of multidrug-resistant bacteria.
- The genetic makeup of Stenotrophomonas pavanii BWK1 demonstrates a significant potential for contributing to the spread of antibiotic resistance.
- Understanding avian-mediated transmission is crucial for developing strategies to control antimicrobial resistance.
Related Concept Videos
Genomics
Feces Formation and Defecation
The mass peristalsis then pushes the feces into the rectum, which stretches the rectal walls to activate...
Genomic Imprinting and Inheritance
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
Genome Size and the Evolution of New Genes
Cis-regulatory Sequences
Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes

