Folia Microbiologica

, Volume 58, Issue 6, pp 657–662 | Cite as

Error estimation in environmental DNA targets quantification due to PCR efficiencies differences between real samples and standards

  • Leonardo Martín Pérez
  • Mariana Fittipaldi
  • Bárbara Adrados
  • Jordi Morató
  • Francesc CodonyEmail author


Nowadays, as in the past, our knowledge of microbiology is limited because of the capacity of available technology tools. In recent decades, molecular techniques are playing a central role in the understanding of the microbial world. In this sense, a complete scientific evaluation of biological samples is not possible without using molecular biology. The most influential technique has probably been the polymerase chain reaction (PCR), which allows us to work beyond classical microbiology. With PCR, in some cases, the need for culture may be avoided. Nevertheless, until the development of real-time PCR, our evaluation of the microbial complexity has been merely qualitative.

Real-time PCR is an evolution of the conventional endpoint PCR wherein the amplification of a target gene and its fluorescence detection occurs simultaneously during each cycle. Different strategies based on the use of nonspecific DNA intercalating dyes or specific fluorescent probes exist for linking...


Polymerase Chain Reaction Environmental Sample Polymerase Chain Reaction Reaction Polymerase Chain Reaction Efficiency Sample Polymerase Chain Reaction 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



We thank the Ministry of Education and Science of Spain and the Comissionat per a Universitats i Recerca del Departament d’Innovacio´ and Universitats i Empresa de la Generalitat de Catalunya i del Fons Social Europeu, for supporting this study. Financial support was provided by Alfa Network TECSPAR (RED ALFA II-0543- FI-FAFCD; Sustainable technologies for potabilization and wastewater treatment), and by grant CTM2008-06676-C05-02/TECNO from the Ministry of Science and Innovation of Spain to Jordi Morató. The authors also want to thank to the peer review process of Folia Microbiologica for improving the quality of the present work.


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Copyright information

© Institute of Microbiology, Academy of Sciences of the Czech Republic, v.v.i. 2013

Authors and Affiliations

  • Leonardo Martín Pérez
    • 1
    • 2
  • Mariana Fittipaldi
    • 1
  • Bárbara Adrados
    • 1
  • Jordi Morató
    • 1
  • Francesc Codony
    • 1
    Email author
  1. 1.Laboratori de Microbiologia Sanitaria i Mediambiental (MSM-Lab) & Aquasost - UNESCO Chair in SustainabilityUniversitat Politècnica de Catalunya (UPC)TerrassaSpain
  2. 2.Departamento de Química Analítica, Facultad de Ciencias Bioquímicas y FarmacéuticasUniversidad Nacional de Rosario (UNR) & Instituto de Química Rosario (IQUIR, UNR-CONICET)RosarioArgentina

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