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Abstract:

Microbial activity was assayed in sediments under five nutrient-limited Posidonia oceanica meadows on the north-east coast of Spain by measuring potential DMSO reduction to dimethylsulfide (DMS) throughout an annual cycle. Nutrient enrichment of the sediments was used to examine the importance of nutrient availability for potential DMSO reduction. DMSO reduction was observed in all the sediments analysed. Values were higher under anaerobic conditions, and low in spring when seagrass uptake removed most of the interstitial sediment phosphorus. DMSO reduction was correlated with α-glucosidase activity suggesting a link with other microbial activities. Nutrient additions significantly increased DMSO reduction in the meadows studied. The extent of the response varied substantially over the year and was highest during November-December. Microbial DMSO reduction was coupled with nutrient cycles like other bacterial activities. This suggests a possibly important role of nutrient additions in bacterial activity in Mediterranean seagrass sediments. © 2003 Elsevier B.V. All rights reserved.

Registro:

Documento: Artículo
Título:Dimethyl sulfoxide (DMSO) reduction potential in Mediterranean seagrass (Posidonia oceanica) sediments
Autor:López, N.I.; Duarte, C.M.
Filiación:Depto. de Quim. Biologica, Fac. de Ciencias Exactas y Naturales, Pabellón 2, 1428 Buenos Aires, Argentina
IMEDEA (CSIC-UIB), Inst. Mediterraneo Estud. Avanzados, C/Miquel Marqués 21, 07190-Esporles, Islas Baleares, Spain
Palabras clave:Dimethyl sulfoxide reduction; Dimethylsulfide; Microbial activity; Seagrass meadows; Sediments; dimethyl sulfoxide; dimethylsulfide; microbial activity; nutrient availability; reduction; seagrass meadow; sediment chemistry; Eurasia; Europe; Southern Europe; Spain; Bacteria (microorganisms); Halophila; Posidonia; Posidonia oceanica; Posidonia oceanica
Año:2004
Volumen:51
Número:1
Página de inicio:11
Página de fin:20
DOI: http://dx.doi.org/10.1016/j.seares.2003.03.001
Título revista:Journal of Sea Research
Título revista abreviado:J. Sea Res.
ISSN:13851101
CODEN:JSREF
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13851101_v51_n1_p11_Lopez

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Citas:

---------- APA ----------
López, N.I. & Duarte, C.M. (2004) . Dimethyl sulfoxide (DMSO) reduction potential in Mediterranean seagrass (Posidonia oceanica) sediments. Journal of Sea Research, 51(1), 11-20.
http://dx.doi.org/10.1016/j.seares.2003.03.001
---------- CHICAGO ----------
López, N.I., Duarte, C.M. "Dimethyl sulfoxide (DMSO) reduction potential in Mediterranean seagrass (Posidonia oceanica) sediments" . Journal of Sea Research 51, no. 1 (2004) : 11-20.
http://dx.doi.org/10.1016/j.seares.2003.03.001
---------- MLA ----------
López, N.I., Duarte, C.M. "Dimethyl sulfoxide (DMSO) reduction potential in Mediterranean seagrass (Posidonia oceanica) sediments" . Journal of Sea Research, vol. 51, no. 1, 2004, pp. 11-20.
http://dx.doi.org/10.1016/j.seares.2003.03.001
---------- VANCOUVER ----------
López, N.I., Duarte, C.M. Dimethyl sulfoxide (DMSO) reduction potential in Mediterranean seagrass (Posidonia oceanica) sediments. J. Sea Res. 2004;51(1):11-20.
http://dx.doi.org/10.1016/j.seares.2003.03.001