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Isolation and characterization of Mycoplasma conjunctivae sp. n. from sheep and goats with keratoconjunctivitis
Abstract:
Fourteen conjunctival strains of mycoplasma were isolated from infected sheep and goats in two separate naturally occurring outbreaks of keratoconjunctivitis (pink-eye). The biological and serological properties and cell protein patterns of these strains are presented in this report. These strains were related to each other and were unrelated to 40 recognized Mycoplasma and Acholeplasma species and serotypes. We are proposing that this group of mycoplasmas be named M. conjunctivae. The role of M. conjunctivae in the etiology of keratoconjunctivitis in sheep and goats remains to be determined.
Insights
Researchers identified a novel mycoplasma strain, tentatively named Mycoplasma conjunctivae, from sheep and goats suffering from infectious keratoconjunctivitis (pink-eye). Further research is needed to confirm its role in causing this animal eye disease.
Area of Science:
- Veterinary Microbiology
- Ophthalmology
- Animal Health
Background:
- Mycoplasma species are known pathogens causing various diseases in animals.
- Keratoconjunctivitis, or pink-eye, is a significant ocular disease affecting livestock.
- Previous studies have identified various Mycoplasma species in animal infections, but a specific agent for ovine and caprine keratoconjunctivitis remained elusive.
Purpose of the Study:
- To isolate and characterize mycoplasma strains from sheep and goats affected by keratoconjunctivitis.
- To determine the biological, serological, and genetic relatedness of these isolates.
- To propose a taxonomic classification for novel strains identified.
Main Methods:
- Isolation of conjunctival mycoplasma strains from naturally infected sheep and goats.
- Characterization of isolates through biological properties, serological testing, and cell protein pattern analysis.
- Comparison of novel strains against recognized Mycoplasma and Acholeplasma species and serotypes.
Main Results:
- Fourteen conjunctival mycoplasma strains were successfully isolated from infected sheep and goats.
- These isolates exhibited related biological and serological properties and distinct cell protein patterns.
- The identified strains were found to be unrelated to 40 previously recognized Mycoplasma and Acholeplasma species and serotypes.
Conclusions:
- A distinct group of mycoplasmas, related to each other but novel, was identified from ovine and caprine keratoconjunctivitis outbreaks.
- The proposed name for this group is Mycoplasma conjunctivae.
- The etiological role of Mycoplasma conjunctivae in sheep and goat keratoconjunctivitis requires further investigation.