Please use this identifier to cite or link to this item: http://hdl.handle.net/2067/1410
Title: Short-term impact of dry olive mill residue addition to soil on the resident microbiota
Authors: Sampedro, Inmaculada
Giubilei, Maria Angela
Cajthaml, Tomáš
Federici, Ermanno
Federici, Federico
Petruccioli, Maurizio
D'Annibale, Alessandro
Keywords: Dry olive mill residue;Microbial community profiling;Toxicity;Waste upgrading
Issue Date: 2009
Publisher: Elsevier
Source: Sampedro I. et al. 2009. Short-term impact of dry olive mill residue addition to soil on the resident microbiota. "Bioresource Technology" 100(23): 6098-6106
Abstract: 
The short-term response of the resident soil bacterial and fungal communities to the addition of 5% (w/w) of either dry olive mill residue (DOR), DOR treated with Phlebia sp. (PTDOR) or DOR previously extracted
with water (WEDOR) was investigated. As opposed to bacteria, the diversity of fungi increased upon the amendments as assessed by denaturing gradient gel electrophoresis of 18S rDNA. Over the first 30 days, phospholipid fatty acids analyses indicated a gradual decrease in the relative abundances of Gram+ bacteria (from 44.8% to 37.9%) and a concomitant increase of Gram- bacteria (from 37.3% to 51.2%) in
DOR-amended soil. A considerable increase in the fungal/bacterial ratio was observed after 7 days in DOR, WEDOR and PTDOR-amended soils with respect to the control (0.316, 0.165 and 0.265, respectively, vs. 0.011). The overall microbial activity was stimulated by the amendments as indicated by the higher activity levels of both dehydrogenase and fluorescein diacetate hydrolase. These results indicate that DOR
at the application level examined is not toxic on soil microorganisms.
Description: 
L'articolo é disponibile sul sito dell'editore: http://www.sciencedirect.com
URI: http://hdl.handle.net/2067/1410
ISSN: 0960-8524
DOI: 10.1016/j.biortech.2009.06.026
Appears in Collections:DABAC - Archivio della produzione scientifica

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