|Published (Last):||18 August 2012|
|PDF File Size:||14.82 Mb|
|ePub File Size:||4.3 Mb|
|Price:||Free* [*Free Regsitration Required]|
Production of inhibitory substances among bacterial biofilms on marine substrates. A study was made of antagonistic relations among benthic bacteria that form biofilms in different marine substrates. A total of 29 strains isolated from the seaweed Lessonia nigrescens and artificial substrates used for scallop Argopecten purpuratus , and abalone Haliotis discus hannai larval settlement were examined for antagonistic activity against other bacteria isolated from the same substrates.
Antibiosis assays of all isolates were carried out against a bacterium known to produce inhibitory substances Vibrio C The results confirmed the occurrence of antagonistic interactions among microorganisms isolated from microbiota attached to the marine surfaces In the inhibition tests, auto-inhibition activity among the selected morphotypes was not detected.
Inhibitory activity among the bacteria isolated from scallop collectors was observed only with one Vibrio sp. Evaluating the effect of strain Vibrio C33 against the 29 isolates, we detected a prominent antibacterial effect against Inhibitory effects were not detected in antibiosis assays done on strains isolated from seaweed and abalone collectors.
Results indicate that production of inhibitory substances is a common phenomenon among bacteria isolated from bacterial biofilms, giving them a competitive advantage over other bacteria and playing an important controlling function in epiphytic microhabitats. Key words : antagonism, biofilm, marine bacteria.
En el caso de comunidades microbianas adheridas a substratos naturales y artificiales, Armstrong et al. Aislamiento de bacterias. Bioensayos de la capacidad inhibitoria de las bacterias seleccionadas. Tabla 1. Strains used in this study, isolated from seaweed and artificial substrates used for scallop and abalone larval settlement. Tabla 2. Factorial matrix design for bacterial inhibition tests. Esto difiere con los resultados reportados por Lemos et al. El espectro de actividad inhibitoria es alto y se manifiesta en halos de entre 10 a 12 mm.
Tabla 3. Number and percentage of bacterial strains with inhibitory activity isolated from different artificial marine substrates. En general, los porcentajes de bacterias marinas productoras de substancias inhibitorias en macroalgas muestran valores fluctuantes dependiendo en gran parte del origen de las cepas. Lemos et al. Lodeiros et al. Boyd et al. Considerando que Vibrio C33 es una bacteria asociada a la microbiota nativa de A.
McCarthy et al. Probablemente, los resultados obtenidos se fundamenten en que H. Prevention of marine biofouling using natural compounds from marine organisms. Biotechnology Annual Review 6: A probiotic strain of Vibrio alginolyticus effective in reducing diseases caused by Aeromonas salmonicida , Vibrio anguillarum and Vibrio ordalii.
Journal of Fish Diseases Establishment of mixed-culture probiotics and microalgae as food for bivalve larvae.
Aquaculture Research Optimisation of settlement of larvae Argopecten purpuratus using natural diatom biofilms. Journal of Shellfish Research Bacteria associated with early life stages of halibut Hippoglossus hippoglossus L. A manual for scallop culture in British Columbia. Antibacterial and repellent activities of marine bacteria associated with algal surfaces. Biofouling Broad spectrum effect of secondary metabolites from red algae Delisea pulchra in antifouling assays.
Biofouling 8: Inhibitory activity of antibiotic-producing marine bacteria against fish pathogens. Journal of Applied Bacteriology Effect of bacteria associated with the green alga Ulva reticulata on marine micro-and macrofouling. A preliminary study on anti-microbial activities of some bacteria isolated from the marine environment. Nippon Suisan Gakkaishi Microbial competition. Science Bacteriocin typing of Burkholderia Pseudomona solannacearum race of French West Indies and correlation with genomic variation of the pathogen.
Applied and Environmental Microbiology Alteromona rubra sp. International Journal of Systematic Bacteriology. Handbook of culture of abalone and other marine gastropods.
Improved method for phenotypic characterization of marine bacteria. Journal of Microbiological Methods Relative importance of fluorescent siderophores and other factors in biological control of Gaeumannomyces graminis var.
Production of bactericidal substances by a marine Vibrio isolated from culture of the scallop Argopecten purpuratus.
Aquaculture International 7: Aquaculture Response of settling invertebrate larvae to bioorganic film: effects of different types of films. Journal of Experimental Marine Biology and Ecology On antibiotic properties of microorganisms isolated from various depths of the world ocean.
Microbiology Antibiotic activity of epiphytic bacteria isolated from intertidal seaweed. Microbial Ecology Competitive dominance of antibiotic-producing marine bacteria in mixed culture. Antagonistic interactions among marine pelagic bacteria.
Phylogenetic oligodeoxynucleotide probes for the mayor sub-classes of proteobacteria: problems and solutions. Systematic and Applied Microbiology Application of a suite of 16S rRNA-specific oligonucleotide probes designed to investigate bacteria of the phylum Cytophaga-Flavobacterium-bacteroides in the natural environment.
Characterization of an antibiotic produced by Alteromonas luteoviolacea Gauthier , 85 isolated from Kniko Bay, Japan. Distribution and significance of heterotrophic marine bacteria with antibacterial activity. Marine microorganisms as a source of biactive agents. Intestinal colonization potential of turbot Scophthalmus maximus and dab Limanda limanda associated bacteria with inhibitory effects against Vibrio anguillarum.
Pathogenicity studies on a Vibrio anguillarum -related VAR strain causing and epizootic in Argopecten purpuratus larvae cultured in Chile. Diseases of Aquatic Organisms Isolation of a native bacterial strain scallop Argopecten purpuratus with inhibitory effect against pathogenic Vibrios. Potential of probiotic strains in the culture of the Chilean scallop Argopecten purpuratus Lamarck Addition of inhibitor-producing bacteria to mass cultures of Argopecten purpuratus Lamarck, Revista Chilena de Historia Natural Antibiotic production by marine microorganisms.
Journal of Bacteriology Antibacterial substances from marine algae: successive extraction using benzene, chloroform and methanol. Constrains on chemically mediated co-evolution: multiple function for seaweed secondary metabolites. Ecology Reverte S. A marine Micrococcus produce metabolites ascribed to sponge Tedanis ignis. Experientia Purification and characterization of a extracellular B-1,4-mannanase from a marine bacterium, Vibrio sp. Antibacterial activity of antibiotic-producing marine bacteria.
An inexpensive chemostat apparatus for the study of microbial biofilms. Bacterial adhesion to hydroxyl-an methyl-terminated alkanethiol self-assembled monolayers. The ecology of antibiotic production. Servicios Personalizados Revista.
Number and percentage of bacterial strains with inhibitory activity isolated from different artificial marine substrates En general, los porcentajes de bacterias marinas productoras de substancias inhibitorias en macroalgas muestran valores fluctuantes dependiendo en gran parte del origen de las cepas.