Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | CHANGES IN THE MICROBIAL ACTIVITY IN A SOIL AMENDED WITH OAK AND PINE RESIDUES AND TREATED WITH LINURON HERBICIDE |
| Abstract | This work studies the effects of wood amendments on soil microbial community functioning and on the potential of this community for linuron degradation. For this purpose, soil dehydrogenase activity and the number of live bacteria, which represent broad scale measurements of the activity and viability of soil organisms, were assessed in soil treated with linuron and either amended with pine or oak wood or unamended (sterilized and nonsterilized). The overall results show that the microbial community had a significant role in linuron degradation. The linuron half-life values indicated a slower degradation rate in pine and oak amended soils than in unamended ones. This is attributed both to the higher sorption of linuron by these soils compared to the unamended ones and a consequent lower bioavailability of the herbicide for microbial degradation, and to the use of the pine and oak as an alternative carbon source by degrading microorganisms. Linuron did not affect the microbial community in terms of dehydrogenase activity and number of live bacteria, presumably because it had adapted to the herbicide. However, the dehydrogenase activity was significantly higher in the soils amended with pine or oak than in the non-amended ones, indicating that the presence of a carbon source favoured the overall bacterial community. |
| Source | Applied soil ecology (Print) 41, pp. 2–7 |
| Journal | Applied soil ecology (Print) |
| Editor | Elsevier, Amsterdam, Paesi Bassi |
| Year | 2009 |
| Type | Articolo in rivista |
| DOI | 10.1016/j.apsoil.2008.07.006 |
| Authors | GRENNI P. (a); BARRA CARACCIOLO A. (a); RODRIGUEZ-CRUZ M.S. (b); SANCHEZ-MARTIN M.J. (b) |
| Text | 42308 2009 10.1016/j.apsoil.2008.07.006 ISI Web of Science WOS 000262872800001 CHANGES IN THE MICROBIAL ACTIVITY IN A SOIL AMENDED WITH OAK AND PINE RESIDUES AND TREATED WITH LINURON HERBICIDE GRENNI P. a ; BARRA CARACCIOLO A. a ; RODRIGUEZ CRUZ M.S. b ; SANCHEZ MARTIN M.J. b a Water Research Institute, National Research Council, Via Reno 1, 00198 Rome, Italy; b Institute of Natural Resources and Agrobiology of Salamanca IRNASA CSIC , P.O. Box 257, 37071 Salamanca, Spain This work studies the effects of wood amendments on soil microbial community functioning and on the potential of this community for linuron degradation. For this purpose, soil dehydrogenase activity and the number of live bacteria, which represent broad scale measurements of the activity and viability of soil organisms, were assessed in soil treated with linuron and either amended with pine or oak wood or unamended sterilized and nonsterilized . The overall results show that the microbial community had a significant role in linuron degradation. The linuron half life values indicated a slower degradation rate in pine and oak amended soils than in unamended ones. This is attributed both to the higher sorption of linuron by these soils compared to the unamended ones and a consequent lower bioavailability of the herbicide for microbial degradation, and to the use of the pine and oak as an alternative carbon source by degrading microorganisms. Linuron did not affect the microbial community in terms of dehydrogenase activity and number of live bacteria, presumably because it had adapted to the herbicide. However, the dehydrogenase activity was significantly higher in the soils amended with pine or oak than in the non amended ones, indicating that the presence of a carbon source favoured the overall bacterial community. 41 Articolo pubblicato ApplSoilEcolLin2009.pdf Articolo in rivista Elsevier 0929 1393 Applied soil ecology Print Applied soil ecology Print Appl. soil ecol. Print Applied soil ecology. Print Agriculture, ecosystems and environment. Applied soil ecology Print paola.grenni GRENNI PAOLA anna.barracaracciolo BARRA CARACCIOLO ANNA TA.P04.005.007 Strumenti di mitigazione dello stress quali quantitativo per i sistemi idrici |