Related Experiment Video
Updated: Mar 14, 2026
Avian Influenza Surveillance with FTA Cards: Field Methods, Biosafety, and Transportation Issues Solved
Published on: August 2, 2011
MOLECULAR IDENTIFICATION AND SEQUENCE CHARACTERIZATION OF MYCOPLASMAS IN FREE-LIVING BIRDS OF PREY
Abstract:
Mycoplasma spp. have been detected in birds of prey, but their prevalence in free living raptors and their significance to birds' health need further investigation. Molecular techniques have been increasingly used to identify mycoplasmas in various avian species, due to the fastidious nature of these pathogens hampering traditional bacteriologic tests. This study reports the identification of 23 novel mycoplasma sequences during the monitoring of 62 birds of prey on admission to wildlife centers in Sardinia, Italy. Molecular investigation performed on pharyngeal swabs revealed 26 birds positive to Mycoplasma (42%). Sequence analysis based on 16S rRNA, 16S-23S rRNA intergenic spacer, and RNA polymerase β subunit (rpoB) gene highlighted cluster assignment and phylogenetic relationships among the identified types, classified within the hominis group. Additionally, Ornithobacterium rhinotracheale , associated with respiratory disease in poultry, was identified in 17 birds (27%). Potential coinfection and mycoplasma opportunistic nature present implications for raptor species conservation.
Insights
Molecular techniques identified novel Mycoplasma sequences in Sardinian birds of prey, revealing a 42% infection rate. This finding highlights the need for further research into mycoplasma
Area of Science:
- Veterinary microbiology
- Avian pathology
- Wildlife health
Background:
- Mycoplasma spp. presence in birds of prey is known, but prevalence and health impacts in free-living raptors require more study.
- Traditional bacterial tests are difficult for Mycoplasma due to their fastidious nature, necessitating molecular methods.
- Molecular techniques are increasingly vital for identifying Mycoplasma in diverse avian species.
Purpose of the Study:
- To investigate the prevalence and genetic diversity of Mycoplasma in free-living birds of prey in Sardinia, Italy.
- To identify novel Mycoplasma sequences and understand their phylogenetic relationships within the hominis group.
- To assess the co-occurrence of Mycoplasma and Ornithobacterium rhinotracheale in raptors.
Main Methods:
- Molecular investigation using pharyngeal swabs from 62 admitted birds of prey.
- Analysis of 16S rRNA, 16S-23S rRNA intergenic spacer, and RNA polymerase β subunit (rpoB) genes for sequence identification and phylogenetic analysis.
- Detection of Ornithobacterium rhinotracheale alongside Mycoplasma.
Main Results:
- 23 novel Mycoplasma sequences were identified.
- 42% (26/62) of birds tested positive for Mycoplasma.
- 17 birds (27%) were positive for Ornithobacterium rhinotracheale, indicating potential co-infections.
- Phylogenetic analysis placed identified Mycoplasma types within the hominis group.
Conclusions:
- This study provides valuable molecular data on Mycoplasma in Sardinian birds of prey, identifying novel sequences.
- The high prevalence and opportunistic nature of Mycoplasma, along with co-infections, have significant implications for raptor health and conservation.
- Further research is warranted to understand the full impact of Mycoplasma on wild raptor populations.
Related Concept Videos
01:29Modern Molecular Taxonomy
01:20Applications of Molecular Taxonomy