Survival of mycoplasmas inoculated in horse sera.

The research article investigates the survivability of mycoplasmas in horse serum, finding that they can, in fact, survive for prolonged periods, depending on the species, strain, and temperature.

Research Context

• The research starts by addressing a known issue where commercialized bovine serum is often contaminated with mycoplasmas. Mycoplasmas are a type of bacteria that lack a cell wall, can cause diseases in various animals and humans, and are notorious for contaminating cell cultures in the lab.
• Although the problem of mycoplasma contamination in bovine serum is well-known, there was a gap in understanding whether these bacteria can also survive in horse serum. This formed the basis for the investigation in this study.

Research Methodology

• The researchers used a variety of different Mycoplasma species for their tests, inoculating horse serum with eight different strains from seven types of mycoplasma.
• Their key observation method was to measure the lapse in time the mycoplasmas could survive in the horse serum at different temperatures, or depending on the pH level.

Research Findings

• The research findings show that two strains – M. bovis and M. gallisepticum, exhibited the capability to survive in horse serum for a period ranging from 94 to 330 days at a temperature of either 30 or 37 degrees C. This is significant as it offers evidence that certain strains of mycoplasma can indeed survive in horse serum over an extended period.
• Three other strains – M. bovirhinis, M. gateae, and A. laidlawii, also showed survivability in horse serum, mainly between 7 to 330 days, depending on the temperature or the pH of the serum.
• The last two strains tested – M. bovigenitalium and U. diversum could only manage to survive for a maximum of 8 days in all types of horse sera tested in the study.

Conclusion

• This research therefore concludes that mycoplasmas can generally survive for long durations in horse serum, but the survival period notably depends upon the specific species, strain and temperature.
• The findings could signify the need for extra precautions when working with horse sera to avoid potential contamination and inaccurate results due to mycoplasma presence.