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Applied and Environmental Microbiology, August 2006, p. 5325-5330, Vol. 72, No. 8
0099-2240/06/$08.00+0     doi:10.1128/AEM.00513-06
Copyright © 2006, American Society for Microbiology. All Rights Reserved.

Eukaryotic Community Distribution and Its Relationship to Water Physicochemical Parameters in an Extreme Acidic Environment, Río Tinto (Southwestern Spain){dagger}

Angeles Aguilera,1* Susanna C. Manrubia,1 Felipe Gómez,1 Nuria Rodríguez,1 and Ricardo Amils1,2

Centro de Astrobiología, Instituto Nacional de Técnica Aeroespacial, Carretera de Ajalvir Km 4, Torrejón de Ardoz, 28850 Madrid, Spain,1 Centro de Biología Molecular (UAM-CSIC), Universidad Autónoma de Madrid, Canto Blanco, 28049 Madrid, Spain2

Received 3 March 2006/ Accepted 31 May 2006

The correlation between water physicochemical parameters and eukaryotic benthic composition was examined in Río Tinto. Principal component analysis showed a high inverse relationship between pH and most of the heavy metals analyzed as well as Dunaliella sp., while Chlamydomonas sp. abundance was positively related. Zn, Cu, and Ni clustered together and showed a strong inverse correlation with the diversity coefficient and most of the species analyzed. These eukaryotic communities seem to be more influenced by the presence of heavy metals than by the pH.

* Corresponding author. Mailing address: Centro de Astrobiología, Instituto Nacional de Técnica Aeroespacial, Carretera de Ajalvir Km 4, 28850 Torrejón de Ardoz, Madrid, Spain. Phone: 34-915206461. Fax: 34-915201074. E-mail: aaguilera{at}cbm.uam.es.

{dagger} Supplemental material for this article may be found at http://aem.asm.org/.

Applied and Environmental Microbiology, August 2006, p. 5325-5330, Vol. 72, No. 8
0099-2240/06/$08.00+0     doi:10.1128/AEM.00513-06
Copyright © 2006, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:

  • Brake, S. S., Hasiotis, S. T. (2008). Eukaryote-Dominated Biofilms in Extreme Environments: Overlooked Sources of Information in the Geologic Record. PALAIOS 23: 121-123 [Full Text]  


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