Determinación molecular de la biodiversidad de levaduras asociada al Canal de riego Latacunga - Salcedo - Ambato (CRLSA).

Abstract

The Latacunga-Salcedo-Ambato irrigation channel (LSAIC) is an important environment for agriculture located in the central region of the country. About 24000 ha of crops are irrigated with this water. However, the channel receives large flows of pollutants that result from the neighboring industrial activity. To determine the diversity of yeast within this habitat, seven sampling points were selected along the 36 km comprising the channel. From the samples of water taken, 13 yeast species belonging to 10 genera were isolated. Phylogenetic analysis showed a heterogeneous population, where 77% of the population belongs to the phylum Ascomycota compared with 23% corresponding to the phylum Basidiomycota. Moreover, the molecular diversity found in LSAIC was compared with other polluted waters environments (River Santiago Argentina, River Danube Bratislava, River Doce Brazil) with similar physicochemical characteristics. It was determined that most of the yeast population was different.