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dc.contributor.authorSantas Miguel, Vanesa 
dc.contributor.authorArias Estévez, Manuel 
dc.contributor.authorDíaz Raviña, Montserrat
dc.contributor.authorFernández Sanjurjo, María José
dc.contributor.authorÁlvarez Rodríguez, Esperanza
dc.contributor.authorNúñez Delgado, Avelino
dc.contributor.authorFernández Calviño, David 
dc.date.accessioned2021-02-01T10:33:17Z
dc.date.available2021-02-01T10:33:17Z
dc.date.issued2020-07-14
dc.identifier.citationAgronomy, 10(7): 1011 (2020)spa
dc.identifier.issn20734395
dc.identifier.urihttp://hdl.handle.net/11093/1732
dc.description.abstractToxicity on soil bacterial community growth caused by the antibiotics oxytetracycline (OTC) and chlortetracycline (CTC) was studied in 22 agricultural soils after 1, 8 and 42 incubation days. The leucine incorporation method was used with this aim, estimating the concentration of each antibiotic which caused an inhibition of 50% in bacterial community growth (log IC50). For OTC, the mean log IC50 was 2.70, 2.81, 2.84 for each of the three incubation times, while the values were 2.05, 2.22 and 2.47 for CTC, meaning that the magnitude of OTC toxicity was similar over time, whereas it decreased significantly for CTC with incubation time. In addition, results showed that the toxicity on bacterial community growth due to CTC is significantly higher than when due to OTC. Moreover, the toxicity on bacterial community growth due to both antibiotics is dependent on soil properties. Specifically, an increase in soil pH and silt content resulted in higher toxicity of both antibiotics, while increases in total organic carbon and clay contents caused decreases in OTC and CTC toxicities. The results also show that OTC toxicity can be well predicted by means of specific equations, using the values of pH measured in KCl and those of effective cation exchange capacity as input variables. CTC toxicity may be predicted (but with low precision) using pH measured in KCl and total organic carbon. These equations may help to predict the negative effects caused by OTC and CTC on soil bacteria using easily measurable soil parameters.spa
dc.description.sponsorshipUniversity of Vigo | Ref. no number availablespa
dc.description.sponsorshipMinisterio de Economía y Competitividad | Ref. CGL2015-67333-C2-1-R y -2-R (Fondos FEDER)spa
dc.description.sponsorshipXunta de Galicia | Ref. (ED431E 2018/07) y (ED431C 2017/62-GRC)spa
dc.language.isoengen
dc.publisherAgronomyspa
dc.rightsAtribución 4.0 Internacional
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.titleEffect of Oxytetracycline and Chlortetracycline on bacterial community growth in agricultural soilsen
dc.typearticlespa
dc.rights.accessRightsopenAccessspa
dc.identifier.doi10.3390/agronomy10071011
dc.identifier.editorhttps://www.mdpi.com/2073-4395/10/7/1011spa
dc.publisher.departamentoBioloxía vexetal e ciencias do solospa
dc.publisher.grupoinvestigacionPranta, Solo e Aproveitamento de Subproductosspa
dc.subject.unesco2511.04 Química de Suelosspa
dc.subject.unesco3108.01 Bacteriasspa
dc.subject.unesco3209 Farmacologíaspa
dc.date.updated2021-02-01T08:58:08Z


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