Abstract                 Volume:5  Issue-11  Year-2018          Original Research Articles

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Chlorophyceae from Biofilms on Monuments of a Mexican Archaeological Area
Isela Aguila-Maldinado, Roxana Olvera Ramírez and Nora Beatriz Medina Jaritz*
Laboratorio de Fisiología Vegetal, Departamento de Botánica, Escuela Nacional de Ciencias Biologicas, Instituto Politécnico Nacional, México City 11340, Mexico
*Corresponding author
Abstract:

The microbial community interacts in different ways with the environment. Regarding mineral materials particularly, the microbial community may be present either on the surface, the divisions or in the fissures. This microbial interaction with the materials and their environment can lead to biodeterioration, a common problem in monuments and archaeological sites. Microorganisms form biofilms, which are communities structured by bacteria, algae, cyanobacteria, fungi and protozoa that are embedded in a polymeric matrix. The aim of this work was the morphological identification of Chlorophyceae microorganisms from biofilm mounds of the Yohualichan, an archaeological zone in Puebla, Mexico. Biofilm samples were collected from archaeological monuments in the area known as “Juego de Pelota” (Ballgame), as well as in the East Building, the West Building and “Las Grecas” (Fretworks). The strains were isolated by using BG-11 medium, solidified with 1.3% bacteriological agar, until obtaining monoalgal cultures and the propagation of isolates in liquid BG-11. Twenty one monoalgal cultures were obtained, grouped into five different orders and nine genera: Chlorella, Chlorococcum, Chlorokybus, Desmodesmus, Elakatothrix, Fernandinella, Fottea, Klebsormidium and Oocystis. To conclude it can be said that microalgae primarily make biofilms present in this archaeological site.

Keywords: Biodeterioration, Biofilms, Chlorophyceae, Photosynthetic microorganisms
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How to cite this article:

Aguila-Maldinado, I., Olvera Ramírez, R., Medina Jaritz, N.R., 2018. Chlorophyceae from biofilms on monuments of a Mexican archaeological area.Int.J.Curr.Res.Biosci.Plantbiol. 5(11): 1-6. doi: https://doi.org/10.20546/ijcrbp.2018.511.001