Antibiotic uptake by plants from manure-amended soils
2013
Bassil R.J. | Bashour I.I. | Sleiman F.T. | Abou-Jawdeh Y.A. | Bassil, R.J., Faculty of Agricultural and Food Sciences, American University of Beirut, Beirut, Lebanon | Bashour, I.I., Faculty of Agricultural and Food Sciences, American University of Beirut, Beirut, Lebanon | Sleiman, F.T., Faculty of Agricultural and Food Sciences, American University of Beirut, Beirut, Lebanon | Abou-Jawdeh, Y.A., Faculty of Agricultural and Food Sciences, American University of Beirut, Beirut, Lebanon | Bashour, I. I.; Faculty of Agricultural and Food Sciences, American University of Beirut, Beirut, Lebanon; email: [email protected] | University: American University of Beirut; Faculty: Faculty of Agricultural and Food Sciences; Department: FAFS; | FAFS | [email protected] | Faculty of Agricultural and Food Sciences | Bassil, RJ | Bashour, II | Sleiman, FT | Abou-Jawdeh, YA | Bashour, II (reprint author), Amer Univ Beirut, Fac Agr and Food Sci, Beirut, Lebanon. | American University of Beirut
Antibiotics are extensively given to livestock to promote growth and reduce diseases. Therefore, animal manure often contains antibiotics. Once manure is applied to agricultural land to improve soil productivity, crops would be exposed to antibiotics which may persist in soils from a few to several hundred days. The objective of this study was to evaluate the uptake of gentamicin and streptomycin by carrot (Daucus carota), lettuce (Lactuca sativa) and radish (Rhaphanus sativus) from manure-amended soil. The treatments were 0, 0.5 and 1 mg of antibiotic kg-1 of soil. Two pot experiments were carried out in the greenhouse. The first was conducted on the three crops and the second exclusively on radish. In radish, the increase in the concentrations of gentamicin was significant between the 0 and both of 0.5 and 1.0 mg kg-1 treatments, but not significant between the 0.5 and 1.0 mg kg-1. The average values were 35.5, 60.0 and 57.4 μg kg-1 for the 0, 0.5 and 1 mg kg-1 rates, respectively. However, the increase in streptomycin concentration in radish was not significant between the three treatments, and the average values were, 12.1, 15.2 and 17.4 μg kg-1 for the 0, 0.5 and 1 mg kg-1 rates, respectively. In carrot roots and lettuce leaves no significant increase in the concentrations of gentamicin or streptomycin was observed between the treatments. The three crops absorbed relatively higher amounts of gentamicin (small molecule) than streptomycin (large molecule). Generally the levels of antibiotics in plant tissue increased with increasing the antibiotic concentration in the manure (1 mg kg-1 andgt; 0.5 mg kg-1). © 2013 Copyright Taylor and Francis Group, LLC.
显示更多 [+] 显示较少 [-]Bashour I., 2007, METHODS ANAL SOILS A, P40; Boxall Alistair B. A., 2008, P123; Boxall ABA, 2006, J AGR FOOD CHEM, V54, P2288, DOI 10.1021-jf053041t; Choueiri M., 2008, THESIS AM U BEIRUT L; Dolliver H, 2007, J ENVIRON QUAL, V36, P1224, DOI 10.2134-jeq2006.0266; Kong WD, 2007, ENVIRON POLLUT, V147, P187, DOI 10.1016-j.envpol.2006.08.016; Kumar K, 2005, J ENVIRON QUAL, V34, P2082, DOI 10.2134-jeq2005.0026; MacDougall C., 2011, GOODMAN GILMANS PHAR, P1155; Sarmah AK, 2006, CHEMOSPHERE, V65, P725, DOI 10.1016-j.chemosphere.2006.03.026
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