Dynamics of the Methanogenic Archaea in Tropical Estuarine Sediments
Joint Authors
Ramírez Vives, Florina
Torres-Alvarado, María del Rocío
Varona-Cordero, Francisco
Fernández, Francisco José
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-01-17
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
Methanogenesis may represent a key process in the terminal phases of anaerobic organic matter mineralization in sediments of coastal lagoons.
The aim of the present work was to study the temporal and spatial dynamics of methanogenic archaea in sediments of tropical coastal lagoons and their relationship with environmental changes in order to determine how these influence methanogenic community.
Sediment samples were collected during the dry (February, May, and early June) and rainy seasons (July, October, and November).
Microbiological analysis included the quantification of viable methanogenic archaea (MA) with three substrates and the evaluation of kinetic activity from acetate in the presence and absence of sulfate.
The environmental variables assessed were temperature, pH, Eh, salinity, sulfate, solids content, organic carbon, and carbohydrates.
MA abundance was significantly higher in the rainy season (106–107 cells/g) compared with the dry season (104–106 cells/g), with methanol as an important substrate.
At spatial level, MA were detected in the two layers analyzed, and no important variations were observed either in MA abundance or activity.
Salinity, sulfate, solids, organic carbon, and Eh were the environmental variables related to methanogenic community.
A conceptual model is proposed to explain the dynamics of the MA.
American Psychological Association (APA)
Torres-Alvarado, María del Rocío& Fernández, Francisco José& Ramírez Vives, Florina& Varona-Cordero, Francisco. 2013. Dynamics of the Methanogenic Archaea in Tropical Estuarine Sediments. Archaea،Vol. 2013, no. 2013, pp.1-13.
https://search.emarefa.net/detail/BIM-482605
Modern Language Association (MLA)
Torres-Alvarado, María del Rocío…[et al.]. Dynamics of the Methanogenic Archaea in Tropical Estuarine Sediments. Archaea No. 2013 (2013), pp.1-13.
https://search.emarefa.net/detail/BIM-482605
American Medical Association (AMA)
Torres-Alvarado, María del Rocío& Fernández, Francisco José& Ramírez Vives, Florina& Varona-Cordero, Francisco. Dynamics of the Methanogenic Archaea in Tropical Estuarine Sediments. Archaea. 2013. Vol. 2013, no. 2013, pp.1-13.
https://search.emarefa.net/detail/BIM-482605
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-482605