Archives of Microbiology

, Volume 196, Issue 3, pp 219–226

Prevalence of potentially thermophilic microorganisms in biofilms from greenhouse-enclosed drip irrigation systems

  • Olga Sánchez
  • Isabel Ferrera
  • Laura Garrido
  • Maria del Mar Gómez-Ramos
  • Amadeo Rodríguez Fernández-Alba
  • Jordi Mas
Short Communication

DOI: 10.1007/s00203-014-0957-3

Cite this article as:
Sánchez, O., Ferrera, I., Garrido, L. et al. Arch Microbiol (2014) 196: 219. doi:10.1007/s00203-014-0957-3
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Abstract

Drip irrigation systems using reclaimed water often present clogging events of biological origin. Microbial communities in biofilms from microirrigation systems of an experimental greenhouse in Almería, SE Spain, which used two different qualities of water (treated wastewater and reclaimed water), were analyzed by denaturing gradient gel electrophoresis and subsequent sequencing of amplified 16S rRNA gene bands. The most remarkable feature of all biofilms was that regardless of water origin, sequences belonging to Firmicutes were prevalent (53.5 % of total mean band intensity) and that almost all sequences recovered had some similarity (between 80.2 and 97 %) to thermophilic microorganisms. Mainly, sequences were closely related to potentially spore-forming organisms, suggesting that microbial communities able to grow at high temperatures were selected from the microbiota present in the incoming water. These pioneer results may contribute to improve management strategies to minimize the problems associated to biofouling in irrigation systems.

Keywords

DGGE 16S rRNA gene Thermophilic bacteria Biofilms Wastewater reuse 

Supplementary material

203_2014_957_MOESM1_ESM.tiff (11.8 mb)
Fig. S1. Dendrogram resulting from hierarchical clustering (A) and non-metrical multidimensional (NMDS) plot (B) based on Bray–Curtis dissimilarities between biofilm samples calculated from the square root transformed relative abundance of each band from the DGGE fingerprint. In the NMDS plot, samples derived from SEW are represented in black and those from TEW in grAy (stress value = 0). Samples from pipes are represented as squares and those from drippers as circles. SEW: secondary effluent water; TEW: tertiary effluent water. (TIFF 12076 kb)
203_2014_957_MOESM2_ESM.docx (74 kb)
Supplementary material 2 (DOCX 74 kb)

Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Olga Sánchez
    • 1
  • Isabel Ferrera
    • 1
    • 2
  • Laura Garrido
    • 1
  • Maria del Mar Gómez-Ramos
    • 3
  • Amadeo Rodríguez Fernández-Alba
    • 3
  • Jordi Mas
    • 1
  1. 1.Departament de Genètica i Microbiologia, Facultat de BiociènciesUniversitat Autònoma de BarcelonaBellaterraSpain
  2. 2.Departament de Biologia Marina i Oceanografia, Institut de Ciències del MarICM-CSICBarcelonaSpain
  3. 3.Departamento de Hidrogeología y Química AnalíticaUniversidad AlmeríaAlmeríaSpain

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