Luminous bacteria isolated by Martinus W. Beijerinck were sealed in glass ampoules in 1924 and 1925 and stored under the names Photobacterium phosphoreum and 'Photobacterium splendidum'. To determine if the stored cultures were viable and to assess their evolutionary relationship with currently recognized bacteria, portions of the ampoule contents were inoculated into culture medium. Growth and...

A comparative analysis of the microbiological quality of three turbot (Scophthalnus maximus) farms (A, B, and C) located in Galicia (northwest Spain) is given. The microbial load and types of bacteria in the internal organs (liver and kidney) of apparently healthy fish was monitored over a year, and all the disease problems occurring during this survey were analyzed. The percentage of healthy t...

Two novel marine luminous bacteria, LC2-047T and LC1-908, were isolated from seawater in Sagami Bay in Japan and an equatorial area, respectively. The cells are Gram-negative, rod shaped and motile with one polar flagellum. These bacteria are oxidase-positive and catalase-positive, and are able to grow in 0.5‒6% NaCl (optimum 3‒5%) and at temperatures of 10‒37°C (optimum 25‒30°C). Phylogenetic ...

Identifying ecologically differentiated populations within complex microbial communities remains challenging, yet is critical for interpreting the evolution and ecology of microbes in the wild. Here we describe spatial and temporal resource partitioning among Vibrionaceae strains coexisting in coastal bacterioplankton. A quantitative model (AdaptML) establishes the evolutionary history of ecolo...

Phenoloxidases (POs) are a group of copper proteins including tyrosinase, catecholase and laccase. In several insects and crustaceans, antibacterial substances are produced through the PO cascade, participating in the direct killing of invading microorganisms. However, although POs are widely recognised as an integral part of the invertebrate immune defence system, experimental evidence is lack...

Vibrio toranzoniae is a Gram-negative bacterium of the Splendidus clade within the Vibrio genus. V. toranzoniae was first isolated from healthy clams in Galicia (Spain) but recently was also identified associated to disease outbreaks of red conger eel in Chile. Experimental challenges showed that the Chilean isolates were able to produce fish mortalities but not the strains isolated from clams....

1. Balcázar JL, Gallo-Bueno A, Planas M, Pintado J. Isolation of Vibrio alginolyticus and Vibrio splendidus from captive-bred seahorses with disease symptoms. Antonie van Leeuwenhoek. 2010;97:207–10. doi:10.1007/s10482-009-9398-4 2. Balcázar JL, Pintado J, Planas M. Bacillus galliciensis sp. nov., isolated from faeces of wild seahorses (Hippocampus guttulatus). Int J Syst Evol Microbiol. 2010;6...