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. 1981;22(3-4):331-43.
doi: 10.1186/BF03548658.

Isolation and characterization of Vibrio alginolyticus and Vibrio parahaemolyticus from the Norwegian coastal environment

J Gjerde, B Böe

Isolation and characterization of Vibrio alginolyticus and Vibrio parahaemolyticus from the Norwegian coastal environment

J Gjerde et al. Acta Vet Scand. 1981.

Abstract
in English, Swedish

Strains of Vibrio alginolyticus were regularly isolated from mussels, fish, bottom sediment and seawater from April to October. Vibrio parahaemolyticus was isolated occasionally in samples from mussels and bottom sediment in July and August. None of the species were detected in the cold season.

Isolated strains were characterized by growth requirement, morphological characteristics and biochemical tests. In addition the cellular fatty acid composition was determined and compared with standard strains from the family Vibrionaceae.

With the exception of some biochemical reactions which distinguish Vibrio alginolyticus from Vibrio parahaemolyticus, growth requirement, morphological characteristics and biochemical reactions are similar for these strains.

The close relation between Vibrio alginolyticus and Vibrio parahaemolyticus was also revealed by cluster analyses of fatty acid patterns which combined these two species into one cluster which, however, was clearly separated from the standard strains of Vibrio anguillarum.

Vibrio alginolyticus ble regelmässig påvist i prøver fra blåskjell, fisk, bunnsediment og sjøvann i perioden fra april til oktober. Vibrio parahaemolyticus ble bare sporadisk påvist i prøver fra blåskjell og bunnsediment i juli og august. Ingen av bakteriene ble funnet i den kaldeste årstid.

Bakteriene ble identifisert på grunnlag av vekstkrav, morfologiske egenskaper og biokjemiske reaksjoner. I tillegg ble det utført undersøkeiser av fettsyremønsteret som ble sammenliknet med standardbakterier fra familien Vibrionaceae.

Med unntak av enkelte biokjemiske reaksjoner som skiller Vibrio alginolyticus fra Vibrio parahaemolyticus, er vekstkrav, morfologiske egenskaper og biokjemiske reaksjoner hos disse bakteriene svært like.

Clusteranalyse av fettsyresammensetningen skilte ikke Vibrio alginolyticus fra Vibrio parahaemolyticus. Disse bakteriene dannet en gruppe som imidlertid skilte seg tydelig fra en nærbeslektet art Vibrio anguillarum.

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