Taxonomy of the Soft Rot Coliform Bacteria

Taxonomy and Emended Description of Strains of Erwinia Isolated from Musa paradisiaca Linnaeus

“…The problems inherent in the taxonomy of the soft-rot group of Erwinia species have been reviewed elsewhere (5,7,8,11,12,20). The 30 strains from M. paradisiaca are very similar to E. chrysanthemi strains ( Table 3) when compared with the results of comparative studies previously reported for phenotypically similar Erwinia species and their subspecies (5,7,8,11, 18).…”

“…Strains which possess a limited number of phenotypic differences and a unique host range are considered The phenotypic results for the Erwinia species and their subspecies are derived from previously published data (5, 7,8,11,18). Two or more authors report the following for all species: facultatively anaerobic; reduction of nitrate; production of catalase and HtS and of acid from fructose, galactose, mannose, arabinose, ribose, glucose, cellobiose, glycerol, mannitol, esculin, and salicin; utilization of citrate; and no production of oxidase, urease, arginine decarboxylase, or acid from adonitol.…”

Elevation of three subspecies of Pectobacterium carotovorum to species level: Pectobacterium atrosepticum sp. nov., Pectobacterium betavasculorum sp. nov. and Pectobacterium wasabiae sp. nov.

“…Among the 17 differentiating tests selected on the basis of numerical taxonomy by diagnostic ability coefficient, 12 were previously reported tests, confirmed in their ability to identify the subspecies of P. carotovorum (Dye, 1969;Graham, 1972;Thomson et al, 1981;Verdonck et al, 1987;De Boer et al, 1987;Goto & Matsumoto, 1987;Alcorn et al, 1991;Gallois et al, 1992). Of the five other tests, palatinose was already known but is too expensive to be used routinely.…”

“…For the purposes of identification of E. carotovora subspecies, several studies have yielded reliable phenotypic criteria that differentiate two or more subspecies (Graham, 1972;Thomson et al, 1981;Verdonck et al, 1987;de Boer et al, 1987;Goto & Matsumoto, 1987;Alcorn et al, 1991;Gallois et al, 1992). Serological differentiation using the Ouchterlony double-diffusion method was effective for an E. carotovora subsp.…”

Formation of Reducing Sugars from Sucrose by Erwinia Species

“…for the ability to accumulate reducing compounds in sucrose medium using the methods of Graham (1971) and Dye (1968). The bacteria were grown in 10 ml medium in IOO ml flasks at 25 "C for 48 h on a shaker (Mark V Orbital Shaker, L.H.…”