Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Epibiotic Vibrio Luminous Bacteria Isolated from some Hydrozoa and Bryozoa Species |
| Abstract | Luminous bacteria are isolated from both Hydrozoa and Bryozoa with chitinous structures on their surfaces. All the specimens of the examined hydroid species (Aglaophenia kirchenpaueri, Aglaophenia octodonta, Aglaophenia tubiformis, Halopteris diaphana, Plumularia setacea, Ventromma halecioides), observed under blue light excitation, showed a clear fluorescence on the external side of the perisarc (chitinous exoskeleton) around hydrocladia. In the bryozoan Myriapora truncata, luminous bacteria are present on the chitinous opercula. All the isolated luminous bacteria were identified on the basis of both phenotypic and genotypic analysis. The isolates from A. tubiformis and H. diaphana were unambiguously assigned to the species Vibrio fischeri. In contrast, the isolates from the other hydroids, phenotypically assigned to the species Vibrio harveyi, were then split into two distinct species by phylogenetic analysis of 16S rRNA gene sequences and DNA-DNA hybridization experiments. Scanning electron microscopy analysis and results of culture-based and culture-independent approaches enabled us to establish that luminous vibrios represent major constituents of the bacterial community inhabiting the A. octodonta surface suggesting that the interactions between luminous bacteria and the examined hydrozoan and bryozoan species are highly specific. These interactions might have epidemiological as well as ecological implications because of the opportunistic pathogenicity of luminous Vibrio species for marine organisms and the wide-distribution of the hydrozoan and bryozoan functioning as carriers. |
| Source | Microbial ecology 56, pp. 625–636 |
| Keywords | Epibiotic VibrioLuminous BacteriaHydrozoa and Bryozoa |
| Journal | Microbial ecology |
| Editor | Springer-Verlag,, New York,, Stati Uniti d'America |
| Year | 2008 |
| Type | Articolo in rivista |
| DOI | 10.1007/s00248-008-9382-y |
| Authors | L. Stabili; C. Gravili; S. M. Tredici; S. Piraino; A. Talà; F. Boero ; P. Alifano |
| Text | 182046 2008 10.1007/s00248 008 9382 y ISI Web of Science WOS 000259863900005 JSTOR 40343408 Scopus 2 s2.0 53749083971 PubMed 18437448 Epibiotic Vibrio Luminous Bacteria Hydrozoa and Bryozoa Epibiotic Vibrio Luminous Bacteria Isolated from some Hydrozoa and Bryozoa Species L. Stabili; C. Gravili; S. M. Tredici; S. Piraino; A. Tala; F. Boero ; P. Alifano Istituto Ambiente Marino Costiero, Sezione di Taranto, CNR, 74100 Taranto, Italy Di.S.Te.B.A., University of Salento, Via Prov.le Lecce Monteroni, Italy Luminous bacteria are isolated from both Hydrozoa and Bryozoa with chitinous structures on their surfaces. All the specimens of the examined hydroid species Aglaophenia kirchenpaueri, Aglaophenia octodonta, Aglaophenia tubiformis, Halopteris diaphana, Plumularia setacea, Ventromma halecioides , observed under blue light excitation, showed a clear fluorescence on the external side of the perisarc chitinous exoskeleton around hydrocladia. In the bryozoan Myriapora truncata, luminous bacteria are present on the chitinous opercula. All the isolated luminous bacteria were identified on the basis of both phenotypic and genotypic analysis. The isolates from A. tubiformis and H. diaphana were unambiguously assigned to the species Vibrio fischeri. In contrast, the isolates from the other hydroids, phenotypically assigned to the species Vibrio harveyi, were then split into two distinct species by phylogenetic analysis of 16S rRNA gene sequences and DNA DNA hybridization experiments. Scanning electron microscopy analysis and results of culture based and culture independent approaches enabled us to establish that luminous vibrios represent major constituents of the bacterial community inhabiting the A. octodonta surface suggesting that the interactions between luminous bacteria and the examined hydrozoan and bryozoan species are highly specific. These interactions might have epidemiological as well as ecological implications because of the opportunistic pathogenicity of luminous Vibrio species for marine organisms and the wide distribution of the hydrozoan and bryozoan functioning as carriers. 56 http //www.springer.com/life sciences/microbiology/journal/248 Epibiotic Vibrio Luminous Bacteria Isolated from some Hydrozoa and Bryozoa Species ME_2008.pdf Articolo in rivista Springer Verlag, 0095 3628 Microbial ecology Microbial ecology Microb Ecol Microbial ecology. loredana.stabili STABILI LOREDANA TA.P04.002.001 Fascia Costiera e Ambienti di Transizione analisi strutturale e funzionale delle componenti biotiche ed abiotiche degli ecosistemi per lo sviluppo sostenibile delle attivita |