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A numerical taxonomic study of non‐motile non‐fermentative Gram‐negative bacteria from foods
Author(s) -
Shaw B.G.,
Latty Josephine B.
Publication year - 1988
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.1365-2672.1988.tb04311.x
Subject(s) - biology , bacteria , acinetobacter , pseudomonas , microbiology and biotechnology , gram negative bacteria , gram , genetics , escherichia coli , gene
A numerical taxonomic study using 155 unit characters was performed on 63 strains of Gram‐negative non‐motile non‐fermentative bacteria isolated from proteinaceous foods. Similar bacteria from other sources and several Pseudomonas strains from meat were included for reference purposes. Three clusters were observed at 76% S which contained all the food strains. Cluster 1 was composed entirely of Acinetobacter strains including 17 isolated from foods that were provisionally identified with Acinetobacter johnsonii. Cluster 2 contained 22 strains identified as Psychrobacter immobilis , of which 20 were from food. Cluster 3 contained all the Pseudomonas reference strains and 26 non‐motile strains isolated from meat. These were shown to be non‐motile variants of Pseudomonas fragi. A simple identification scheme, based on five tests, is presented for the distinction of the three types of bacteria.