Vibrio caribbeanicus sp. nov., isolated from the marine sponge Scleritoderma cyanea
Author:
Hoffmann Maria12, Monday Steven R.2, Allard Marc W.2, Strain Errol A.2, Whittaker Paul2, Naum Marianna2, McCarthy Peter J.3, Lopez Jose V.4, Fischer Markus1, Brown Eric W.2
Affiliation:
1. Institute of Food Chemistry, Department of Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany 2. US Food and Drug Administration, Paint Branch Parkway, College Park, MD 20740, USA 3. Center for Marine Biomedical and Biotechnology Research, Harbor Branch Oceanographic Institute at Florida Atlantic University, 5600 US 1 North, Fort Pierce, FL 34946, USA 4. Oceanographic Center, Nova Southeastern University, 8000 North Ocean Drive, Dania Beach, FL 33004, USA
Abstract
A Gram-negative, oxidase-positive, catalase-negative, facultatively anaerobic, motile, curved rod-shaped bacterium, strain N384T, was isolated from a marine sponge (Scleritoderma cyanea; phylum Porifera) collected from a depth of 795 feet (242 m) off the west coast of Curaçao. On the basis of 16S rRNA gene sequencing, strain N384T was shown to belong to the genus
Vibrio
, most closely related to
Vibrio brasiliensis
LMG 20546T (98.8 % similarity),
Vibrio nigripulchritudo
ATCC 27043T (98.5 %),
Vibrio tubiashii
ATCC 19109T (98.6 %) and
V. sinaloensis
DSM 21326T (98.2 %). The DNA G+C content of strain N384T was 41.6 mol%. An analysis of concatenated sequences of five genes (gyrB, rpoA, pyrH, mreB and ftsZ; 4068 bp) demonstrated a clear separation between strain N384T and its closest neighbours and clustered strain N384T into the ‘Orientalis’ clade of vibrios. Phenotypically, the novel species belonged to the arginine dihydrolase-positive, lysine decarboxylase- and ornithine decarboxylase-negative (A+/L−/O−) cluster. The novel species was also differentiated on the basis of fatty acid composition, specifically that the proportions of iso-C13 : 0, iso-C15 : 0, C15 : 0, iso-C16 : 0, C16 : 0, iso-C17 : 0, C17 : 1ω8c and C17 : 0 were significantly different from those found in
V. brasiliensis
and
V. sinaloensis
. The results of DNA–DNA hybridization, average nucleotide identity and physiological and biochemical tests further allowed differentiation of this strain from other described species of the genus
Vibrio
. Collectively, these findings confirm that strain N384T represents a novel
Vibrio
species, for which the name Vibrio caribbeanicus sp. nov. is proposed, with the type strain N384T ( = ATCC BAA-2122T = DSM 23640T).
Publisher
Microbiology Society
Subject
General Medicine,Ecology, Evolution, Behavior and Systematics,Microbiology
Cited by
41 articles.
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