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 extracellular organic carbon released by the diatom Cylindrotheca closterium grown under P-balanced and P-depleted conditions. Bacterial specific growth rates and carbon demand were significantly lower in the exudates from P-depleted algae (24% and 30% reduction, respectively). The origin of the extracellular carbon appeared also to affect the taxonomic composition of the bacterioplankton assemblage, mainly reducing the development of ?-Proteobacteria. This pattern of bacterial carbon uptake could contribute to a longer persistence of the exudates released in P-depleted conditions affecting the dynamics of the carbon cycle in marine environments. © 2003 Federation of European Microbiological Societies. Published by Elsevier B.V. All rights reserved. |
| Source | FEMS microbiology, ecology (print) 46 (3), pp. 257–268 |
| Keywords | Algal excretionBacterial activityCarbon cycleCylindrotheca closteriumFlow cytometryPhylogenetic diversity |
| Journal | FEMS microbiology, ecology (print) |
| Editor | Elsevier, Amsterdam, Paesi Bassi |
| Year | 2003 |
| Type | Articolo in rivista |
| DOI | 10.1016/S0168-6496(03)00197-1 |
| Authors | Puddu, Alberto; Zoppini, Annamaria; Fazi, Stefano; Rosati, Michela; Amalfitano, Stefano; Magaletti, Erika |
| Text | 338599 2003 10.1016/S0168 6496 03 00197 1 Scopus 2 s2.0 0344256422 ISI Web of Science WOS WOS 000187362200004 Algal excretion Bacterial activity Carbon cycle Cylindrotheca closterium Flow cytometry Phylogenetic diversity Bacterial uptake of DOM released from P limited phytoplankton Puddu, Alberto; Zoppini, Annamaria; Fazi, Stefano; Rosati, Michela; Amalfitano, Stefano; Magaletti, Erika IRSA CNR 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 extracellular organic carbon released by the diatom Cylindrotheca closterium grown under P balanced and P depleted conditions. Bacterial specific growth rates and carbon demand were significantly lower in the exudates from P depleted algae 24% and 30% reduction, respectively . The origin of the extracellular carbon appeared also to affect the taxonomic composition of the bacterioplankton assemblage, mainly reducing the development of Proteobacteria. This pattern of bacterial carbon uptake could contribute to a longer persistence of the exudates released in P depleted conditions affecting the dynamics of the carbon cycle in marine environments. © 2003 Federation of European Microbiological Societies. Published by Elsevier B.V. All rights reserved. 46 Published version http //www.scopus.com/record/display.url eid=2 s2.0 0344256422 origin=inward This research was partially funded by the Italian Ministry of the Environment in the framework of the MAT project Mucilages in the Adriatic and Tyrrhenian Sea . Bacterial uptake of DOM released from P limited phytoplankton REPRINT Puddu et al 2013 FEMS.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 TA.P04.032.002 Ruolo delle comunita microbiche nei cicli biogeochimici e nella degradazione degli inquinanti |