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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)

American Society for Microbiology

Director: Ministerio de Ciencia e Innovación (Espanya)
Ministerio de Ciencia y Tecnología (Espanya)
Autor: Trias Mansilla, Rosalia
Ruiz Rueda, Olaya
García Lledó, Arantzazu
Vilar Sanz, Ariadna
López i Flores, Rocío
Quintana Pou, Xavier
Hallin, Sara
Bañeras Vives, Lluís
Resum: 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)
Accés al document: http://hdl.handle.net/2072/296564
Llenguatge: eng
Editor: American Society for Microbiology
Drets: Tots els drets reservats
Matèria: Aiguamolls
Marshes
Zones humides
Wetlands
Ecologia aquàtica
Aquatic ecology
Títol: Emergent Macrophytes Act Selectively on Ammonia-Oxidizing Bacteria and Archaea
Tipus: info:eu-repo/semantics/article
Repositori: Recercat

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