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Emergent Macrophytes Act Selectively on Ammonia-Oxidizing Bacteria and Archaea

Ammonia-oxidizing bacteria (AOB) and archaea (AOA) were quantified in the sediments and roots of dominant macrophytes in eight neutral to alkaline coastal wetlands. The AOA dominated in most samples, but the bacterial-to-archaeal amoA gene ratios increased with increasing ammonium levels and pH in the sediments. For all plant species, the ratios increased on the root surface relative to the adjacent bulk sediment. This suggests that root surfaces in these environments provide conditions favoring enrichment of AOB

This research was funded by the Spanish Ministerio de Ciencia e Innovacion (CGL2006-02382, CGL2009-08338, and CGL2011-23907) and by the Spanish Ministerio de Ciencia e Innovacion and the Donana Biological Station (ICTS 24/2007)

© Applied and Environmental Microbiology, 2012, vol. 78, núm. 17, p. 6352-6356

American Society for Microbiology

Author: Trias Mansilla, Rosalia
Ruiz Rueda, Olaya
García Lledó, Arantzazu
Vilar Sanz, Ariadna
López i Flores, Rocío
Quintana Pou, Xavier
Hallin, Sara
Bañeras Vives, Lluís
Date: 2012
Abstract: Ammonia-oxidizing bacteria (AOB) and archaea (AOA) were quantified in the sediments and roots of dominant macrophytes in eight neutral to alkaline coastal wetlands. The AOA dominated in most samples, but the bacterial-to-archaeal amoA gene ratios increased with increasing ammonium levels and pH in the sediments. For all plant species, the ratios increased on the root surface relative to the adjacent bulk sediment. This suggests that root surfaces in these environments provide conditions favoring enrichment of AOB
This research was funded by the Spanish Ministerio de Ciencia e Innovacion (CGL2006-02382, CGL2009-08338, and CGL2011-23907) and by the Spanish Ministerio de Ciencia e Innovacion and the Donana Biological Station (ICTS 24/2007)
Format: application/pdf
ISSN: 0099-2240 (versió paper)
1098-5336 (versió electrònica)
Document access: http://hdl.handle.net/10256/11320
Language: eng
Publisher: American Society for Microbiology
Collection: MICINN/PN 2012-2015/CGL2011-23907
MICYT/PN 2006-2009/CGL2006-02382/HID
MICYT/PN 2007-2008/ICTS-RBD 24/2007
Reproducció digital del document publicat a: http://dx.doi.org/10.1371/journal.pone.008173910.1128/AEM.00919-12
Articles publicats (D-CCAA)
Is part of: © Applied and Environmental Microbiology, 2012, vol. 78, núm. 17, p. 6352-6356
Rights: Tots els drets reservats
Subject: Aiguamolls
Marshes
Zones humides
Wetlands
Ecologia aquàtica
Aquatic ecology
Title: Emergent Macrophytes Act Selectively on Ammonia-Oxidizing Bacteria and Archaea
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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