SECTION 3.3 Gamma Subclass

The Prokaryotes

pp 72-89

The Genus Edwardsiella

  • Sharon L. Abbott
  • , J. Michael Janda


In 1965, Ewing and colleagues proposed the creation of a new species, Edwardsiella tarda, to house a collection of 37 strains that were primarily of fecal origin. These strains, extensively studied at the United States Centers for Disease Control and Prevention (CDC) since 1959 and referred to as “bacterium 1483–59,” were sufficiently distinct biochemically from other taxa within the family Enterobacteriaceae to warrant this proposal. Simultaneously, a Japanese group (Sakazaki et al., 1965) had been independently studying a collection of 256 Japanese cultures, mostly from snakes, with similar, though not identical, biochemical properties to bacterium 1483–59 (Farmer and McWhorter, 1984). These reptilian isolates were given the vernacular name “Asakusa Group,” a reference to the place from which they were originally isolated. Others, most notably King and Adler (1964) and Rakovskí and Aldov (1965), described the “Bartholomew Group,” which was a collection of yet other unidentifi ...

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