Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Bacterial uptake of DOM released from P-limited phytoplankton |
| Abstract | The growth and the structure of a coastal bacterioplankton community were monitored in short term bottle experiments in order to investigate the bacterial uptake of organic carbon excreted by Cylindrotheca closterium grown in P-balanced and P-depleted conditions. Bacterial carbon demand and specific growth rates were significantly lower in the excreta from P-depleted algae (30% and 24% reduction, respectively). The origin of the excreta appeared also to affect the taxonomic composition of the bacterioplankton assemblage, mainly reducing the development of ×-proteobacteria. This pattern in bacterial carbon uptake could contribute to a longer persistence of the excreta released in P-depleted conditions affecting the dynamics of carbon cycle in the marine environment |
| Source | FEMS microbiology, ecology (print) 46, pp. 257–268 |
| Keywords | Ciclo del Cescreti algalibatterimucillagine |
| Journal | FEMS microbiology, ecology (print) |
| Editor | Elsevier, Amsterdam, Paesi Bassi |
| Year | 2003 |
| Type | Articolo in rivista |
| Authors | PUDDU A., ZOPPINI A., FAZI S., ROSATI M., AMALFITANO S., MAGALETTI E. |
| Text | 42067 2003 Ciclo del C escreti algali batteri mucillagine Bacterial uptake of DOM released from P limited phytoplankton PUDDU A., ZOPPINI A., FAZI S., ROSATI M., AMALFITANO S., MAGALETTI E. 1 IRSA, 2 ICRAM The growth and the structure of a coastal bacterioplankton community were monitored in short term bottle experiments in order to investigate the bacterial uptake of organic carbon excreted by Cylindrotheca closterium grown in P balanced and P depleted conditions. Bacterial carbon demand and specific growth rates were significantly lower in the excreta from P depleted algae 30% and 24% reduction, respectively . The origin of the excreta appeared also to affect the taxonomic composition of the bacterioplankton assemblage, mainly reducing the development of × proteobacteria. This pattern in bacterial carbon uptake could contribute to a longer persistence of the excreta released in P depleted conditions affecting the dynamics of carbon cycle in the marine environment 46 La ricerca e stata finanziata nell¡¦ambito del Programma di monitoraggio e studio sui Processi di formazione delle mucillagini nell¡¦Adriatico e nel Tirreno MAT , coordinato dall¡¦ICRAM Puddu et al 2003 Puddu_FEMS_03.pdf Articolo in rivista Elsevier 0168 6496 FEMS microbiology, ecology print FEMS microbiology, ecology print FEMS microbiol. ecol. print FEMS microbiology, ecology. print Federation of European Microbiological Societies microbiology, ecology print stefano.fazi FAZI STEFANO stefano.amalfitano AMALFITANO STEFANO alberto.puddu PUDDU ALBERTO annamaria.zoppini ZOPPINI ANNAMARIA |