RT info:eu-repo/semantics/article
T1 Different Behavior of Enteric Bacteria and Viruses in Clay and Sandy Soils after Biofertilization with Swine Digestate
A1 Fongaro, Gislaine
A1 García González, María C.
A1 Hernández Pérez, Marta
A1 Kunz, Airton
A1 Barardi, Célia R. M.
A1 Rodríguez Lázaro, David
K1 swine digestate
K1 clay and sandy soils
K1 biofertilization
K1 biomarkers
K1 management
K1 Microbiology
K1 Microbiología
AB Enteric pathogens from biofertilizer can accumulate in the soil, subsequentlycontaminating water and crops. We evaluated the survival, percolation and leachingof model enteric pathogens in clay and sandy soils after biofertilization withswine digestate: PhiX-174, mengovirus (vMC0), Salmonella enterica Typhimurium andEscherichia coli O157:H7 were used as biomarkers. The survival of vMC0 and PhiX-174in clay soil was significantly lower than in sandy soil (ıPT90 values of 10.520   0.600vs. 21.270   1.100 and 12.040   0.010 vs. 43.470   1.300, respectively) and PhiX-174 showed faster percolation and leaching in sandy soil than clay soil (ıPT90 values of0.46 and 2.43, respectively). S. enterica Typhimurium was percolated and inactivatedmore slowly than E. coli O157:H7 (ıPT90 values of 9.340   0.200 vs. 6.620   0.500and 11.900   0.900 vs. 10.750   0.900 in clay and sandy soils, respectively), suchthat E. coli O157:H7 was transferred more quickly to the deeper layers of both soilsevaluated (percolation). Our findings suggest that E. coli O157:H7 may serve as a usefulmicrobial biomarker of depth contamination and leaching in clay and sandy soil and thatbacteriophage could be used as an indicator of enteric pathogen persistence. Our studycontributes to development of predictive models for enteric pathogen behavior in soils,and for potential water and food contamination associated with biofertilization, useful forrisk management and mitigation in swine digestate recycling.
PB Frontiers Media
YR 2017
FD 2017-01
LK http://hdl.handle.net/10259/4407
UL http://hdl.handle.net/10259/4407
LA eng
NO RTA2014-00024-C04-01 from the Spanish Ministry of Economy and Innovationand the Brazilian CNPq Project number 472804/2013-8, an dby CAPES/PNPD and CAPES/PDSE.
DS Repositorio Institucional de la Universidad de Burgos
RD 11-dic-2024