http://www.cnr.it/ontology/cnr/individuo/prodotto/ID48983
Exo-enzymatic activities and dissolved organic pools in relation with mucilage development in the Northern Adriatic Sea (Articolo in rivista)
- Type
- Label
- Exo-enzymatic activities and dissolved organic pools in relation with mucilage development in the Northern Adriatic Sea (Articolo in rivista) (literal)
- Anno
- 2005-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.scitotenv.2005.09.029 (literal)
- Alternative label
Danovaro, R. (1), Armenia M. (1), Luna G.M. (1), Corinaldesi C. (1), Dell'Anno A. (1), Ferrari C.R. (3), Fiordelmondo C. (1), Gambi C. (1), Gismondi M. (3), Manini E. (4), Mecozzi M.(2), Perrone F.M. (1), Pusceddua A. (1), Giani M. (5) (2005)
Exo-enzymatic activities and dissolved organic pools in relation with mucilage development in the Northern Adriatic Sea
in Science of the total environment
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Danovaro, R. (1), Armenia M. (1), Luna G.M. (1), Corinaldesi C. (1), Dell'Anno A. (1), Ferrari C.R. (3), Fiordelmondo C. (1), Gambi C. (1), Gismondi M. (3), Manini E. (4), Mecozzi M.(2), Perrone F.M. (1), Pusceddua A. (1), Giani M. (5) (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
- Special Issue: Mucilages in the Adriatic and Tyrrhenian Seas
Edited by M. Giani, D. Degobbis and A. Rinaldi (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
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- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- (1) DSM-Dipartimento Scienze del Mare, Università Politecnica delle Marche, Via Brecce Bianche-60131 Ancona, Italy
(2) ICRAM-Istituto Centrale per la Ricerca Scientifica e Tecnologica Applicata al Mare, via di Casalotti 300, 00166 Rome, Italy
(3) ARPA-Agenzia Regionale Prevenzione Ambiente Emilia Romagna, V.le Vespucci 2, 47042 Cesenatico FC, Italy
(4) CNR-ISMAR-Istituto Scienze Marine, Sezione Ecosistemi Costieri e Lagunari, Via Pola 4, 70100 Lesina, Italy
(5) ICRAM-Istituto Centrale per la Ricerca Scientifica e Tecnologica Applicata al Mare, Chioggia, Italy (literal)
- Titolo
- Exo-enzymatic activities and dissolved organic pools in relation with mucilage development in the Northern Adriatic Sea (literal)
- Abstract
- We tested the hypothesis that the appearance of mucilage in the Northern Adriatic Sea was related with the accumulation of dissolved organic compounds released by intensive enzymatic activities and not utilized as direct substrate for microbial growth. To do this enzymatic activities and dissolved organic and inorganic pools in periods characterized by the presence of mucilage and in the same seasons but in absence of mucilage were compared. Extracellular enzymatic activities (aminopeptidase, â-glucosidase and alkaline phosphatase), nutrient pool concentrations (total dissolved nitrogen, dissolved organic nitrogen, total dissolved phosphorus, dissolved organic phosphorus) and the biochemical composition of particulate and dissolved organic matter (in terms of proteins and carbohydrates) were determined on a monthly basis over a period of 3 years. Aminopeptidase and alkaline phosphatase activities displayed higher values in springs preceding the appearance of mucilage than in spring when no mucilage was observed. â-Glucosidase activity showed significantly higher values in summer periods characterized by the massive production of mucilage than in summers without mucilage events. The months preceding mucilage events were also characterized by an increase of the alkaline phosphatase to aminopeptidase activity ratio and by a significant accumulation of dissolved proteins. These findings, together with the significant increase of the DON/DOP ratio, suggest that mucilage formation is favoured by the deficiency of organic P. The present study provides compelling evidences that mucilage formation is favoured by the unbalance between organic matter mobilization by enzymatic activities and the accumulation of labile dissolved organic-N compounds. (literal)
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