Research Note: The structure and diversity of antibiotic resistance genes in animal house environment

Zhuo Chen1, Xiaojie Wan1, Cheng Lou1

  • 1Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and Engineering, Foshan University, Foshan 528000, China.

Poultry Science
|June 18, 2024
PubMed

Insights

Antibiotic resistance genes (ARGs) are prevalent in chicken house air, posing a public health risk. Airborne ARGs in poultry environments can promote the spread of antibiotic-resistant bacteria.

Area of Science:

  • Environmental Science
  • Microbiology
  • Public Health

Background:

  • Antibiotic resistance is a growing global public health concern.
  • Indoor air in livestock facilities is a potential source of antibiotic resistance genes (ARGs).

Purpose of the Study:

  • To characterize microorganisms and ARGs in chicken house air particulate matter.
  • To investigate the abundance and potential impact of ARGs in poultry environments.

Main Methods:

  • Metagenomic analysis of air particulate matter from chicken houses.
  • Detection and quantification of ARGs and mobile genetic elements.
  • Correlation network analysis to understand ARG interactions.

Main Results:

  • 761 ARGs subtypes (e.g., aminoglycosides, tetracyclines, MLSB) were detected.
  • Four types of mobile genetic elements and pathogenic microorganisms were identified.
  • High abundance of ARGs in chicken coop air was observed, with correlations suggesting promotion of antibiotic-resistant bacteria.

Conclusions:

  • Chicken coop air harbors a significant diversity and abundance of ARGs.
  • Airborne ARGs may contribute to the emergence and spread of antibiotic-resistant bacteria.
  • Environmental monitoring of ARGs in livestock settings is crucial for public health protection.

Related Concept Videos

Antibiotic Selection00:57

Antibiotic Selection

Overview
53.1K
Genomic DNA in Prokaryotes00:46

Genomic DNA in Prokaryotes

The genome of most prokaryotic organisms consists of double-stranded DNA organized into one circular chromosome in a region of cytoplasm called the nucleoid. The chromosome is tightly wound, or supercoiled, for efficient storage. Prokaryotes also contain other circular pieces of DNA called plasmids. These plasmids are smaller than the chromosome and often carry genes that confer adaptive functions, such as antibiotic resistance.
Genomic Diversity in Bacteria
Although bacterial genomes are much...
43.7K
Genome Size and the Evolution of New Genes03:21

Genome Size and the Evolution of New Genes

While every living organism has a genome of some kind (be it RNA, or DNA), there is considerable variation in the sizes of these blueprints. One major factor that impacts genome size is whether the organism is prokaryotic or eukaryotic. In prokaryotes, the genome contains little to no non-coding sequence, such that genes are tightly clustered in groups or operons sequentially along the chromosome. Conversely, the genes in eukaryotes are punctuated by long stretches of non-coding sequence.
7.9K
Defense Against Bacterial Pathogens01:31

Defense Against Bacterial Pathogens

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...
1.4K
Types of Genetic Transfer Between Organisms02:18

Types of Genetic Transfer Between Organisms

Genetic transfer occurs when genetic information is passed from one organism to another. It occurs via two mechanisms: vertical gene transfer and horizontal gene transfer. Vertical gene transfer occurs when genetic information is transferred from one generation to the next, which happens much more frequently than horizontal gene transfer. Both sexual and asexual reproduction are forms of vertical gene transfer, where one or more organisms pass some or all of their genome onto their progeny.
27.7K