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dc.contributor.authorDíaz Peña, Francisco Javier 
dc.contributor.authorReyes Battle, María
dc.contributor.authorRodríguez Expósito, Rubén
dc.contributor.authorSifaoui, Inés 
dc.contributor.authorRiezo Liendo, Aitor
dc.contributor.authorPiñero, José E.
dc.contributor.authorLorenzo Morales, Jacob
dc.date.accessioned2024-02-01T21:05:40Z
dc.date.available2024-02-01T21:05:40Z
dc.date.issued2021
dc.date.issuedThe use of freshwater in agricultural systems represents a high percentage of total water consumption worldwide. Therefore, alternative sources of water for irrigation will need to be developed, particularly in arid and semi-arid areas, in order to meet the growing demand for food in the future. The use of recycled wastewater (RWW), brackish water (BW) or desalinated brackish water (DBW) are among the different non-conventional water resources proposed. However, it is necessary to evaluate the health risks for humans and animals associated with the microbiological load of these waters. Protozoa such as free-living amoebae (FLA) are considered an emerging group of opportunistic pathogens capable to cause several diseases in humans (e.g. cutaneous and ocular infections, lung, bone or adrenal gland conditions or fatal encephalitis). In the present study we evaluate FLA presence in three different irrigation water qualities (RWW, BWand DBW) and its survival in irrigated agricultural soils of an extremely arid insular ecosystem (Fuerteventura, Canary Islands, Spain). Samples were cultured on 2% Non-Nutrient Agar (NNA) plates covered with a thin layer of heat killed E. coli and checked daily for the presence of FLA. According to the prevalence of FLA, Vermamoeba vermiformis (53,8%), Acanthamoeba spp. (30,8%), Vahlkampfia avara (7,7%) and Naegleria australiensis (7,7%) were detected in the analysed water samples, while Acanthamoeba (83,3%), Cercozoa spp. (8,3%) and Vahlkampfia orchilla (8,3%) were isolated in irrigated soils. Only Acanthamoeba strains were isolated in no irrigated soils used as control, evidencing the capability of these protozoa to resist environmental harsh conditions. Additionally, all analysed water sources and the irrigated soils presented growth of several pathogenic bacteria. Therefore, the coexistence in water and soils of pathogenic bacteria and FLA, can mean an increased risk of infection in agroecosystems.
dc.identifier.urihttp://riull.ull.es/xmlui/handle/915/35946
dc.descriptionhttps://doi.org/10.1016/j.scitotenv.2020.141833
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.relation.ispartofseriesScience of The Total Environment Volume 753, 2021
dc.rightsLicencia Creative Commons (Reconocimiento-No comercial-Sin obras derivadas 4.0 Internacional)
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es_ES
dc.titleFree living amoebae isolation in irrigation waters and soils of an insular arid agroecosystem.
dc.typeinfo:eu-repo/semantics/article
dc.identifier.doi10.1016/j.scitotenv.2020.141833
dc.subject.keywordFree living amoebae
dc.subject.keywordIrrigation water quality
dc.subject.keywordArid agricultural soils
dc.subject.keywordMicrobiological load
dc.subject.keywordFuerteventura Island


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Except where otherwise noted, this item's license is described as Licencia Creative Commons (Reconocimiento-No comercial-Sin obras derivadas 4.0 Internacional)