Status of the 1805 Strain of Mycoplasma iowae (K Component of Serovar I,J,K,N,Q,R) and the SA Strain of M. gallopavonis (Serovar F)

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Contrary to historical evidence, recent biochemical and serological studies have suggested that the 1805 strain of M. iowae (K component of serovar I,J,K,N, Q,R) and the SA strain of M. gallopavonis (serovar F) were members of the species M. gallinaceum. After examining three seeds of strain 1805 and an original seed of the SA strain, we present evidence to indicate that 1805 and SA are indeed valid members of the species M. iowae and M. gallopavonis, respectively. However, some seeds of strains 1805 and SA may contain M. gallinaceum. In the case of strain 1805, it is possible that the original seed may have contained M. gallinaceum.