Abstract
Representative strains of each of the named species of Legionella were examined for isoprenoid quinones by reverse-phase thin-layer chromatography. All strains contained three or more ubiquinones (Q9, Q10, Q11, Q12, Q13) which were useful for placing the species into one of three distinct groups. Group 1 contained L. longbeachae, L. bozemanii, L. dumoffi, and L. gormanii; group 2 contained only L. micdadei; and group 3 contained only L. pneumophila. The identities of the quinones were established by UV spectroscopy and mass spectrometry.
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