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Serological and biochemical variation among potato strains of Erwinia carotovora subsp. atroseptica and their taxonomic relationship to other E. carotovora strains
Author(s) -
Boer S. H. De,
Verdonck L.,
Vruggink H.,
Harju P.,
Bång H. O.,
Ley J. De
Publication year - 1987
Publication title -
journal of applied bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 0021-8847
DOI - 10.1111/j.1365-2672.1987.tb02718.x
Subject(s) - erwinia , biology , blackleg , strain (injury) , microbiology and biotechnology , bacteria , botany , genetics , anatomy , brassica
The serological and biochemical characteristics of 32 Erwinia carotovora subsp. atroseptica strains from potato were compared with 48 other pectolytic Erwinia strains. Biochemical characteristics were examined by the API 20E and API 50CHE systems. Numerical analysis using the Euclidean distance coefficients and clustering by the unweighted average pair group method indicated that these E. carotovora subsp. atroseptica strains formed a distinct cluster (subphenon A 1 ) that could be differentiated from other E. carotovora strains. Three non‐potato strains also belonged to this group; two of these were from tomato and the other from Chinese cabbage. Named E. carotovora subsp. atroseptica strains from other hosts clustered into other phenons. Sixty‐three per cent of subphenon A 1 strains tested in this study typed into serogroup I. One potato strain in another phenon also typed into this serogroup. The subphenon A 1 strains that did not type into serogroup I typed into serogroups XVIII, XX, or XXII. Many of these strains, however, expressed several different O antigens which were also expressed by E. carotovora strains in other phenons.