Plant Pathology Department

 

Date of this Version

November 1967

Comments

Published in APPLIED MICROBIOLOGY, Nov. 1967, p. 1523-1524. Copyright @ 1967 American Society for Microbiology. Used by permission.

Abstract

Fluorescence is of diagnostic value for differentiating among species of aerobic pseudomonads (R. Y. Stanier, N. J. Palleroni, and M. Doudoroff, J. Gen. Microbiol. 43:159, 1966). The standard medium for detecting fluorescence is Medium B (E. 0. King, M. K. Ward, and D. E. Raney, J. Lab. Clin. Med. 44:301, 1954), which supports fluorescent pigment production of most pseudomonads tested (0. Jessen, Pseudomonas aeruginosa and other green fluorescent pseudomonads, A taxonomic study, Munksgaard, Copenhagen, 1965; R. Y. Stanier et al., J. Gen. Microbiol. 43:159, 1966).
Minerals (J. V. King, J. J. R. Campbell, and B. A. Eagles, Can. J. Res. C 26:514, 1948), amino acids (J. De Ley, Ann. Rev. Microbiol. 18:17, 1964), and peptones (E. 0. King et al., J. Lab. Clin. Med. 44:301, 1954) affect fluorescence. The effect of carbon sources had not been shown. Although glycerol, glucose, or maltose can be used interchangeably in Medium B for detecting fluorescence of most fluorescent pseudomonads, this report shows that these carbon sources are not equivalent for phytopathogenic pseudomonads.

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