CAJ | 학술논문

为研究有机肥中残留抗生素在土壤-蔬菜体系中的迁移，采用盆栽试验研究了小白菜和白萝卜对四环素类抗生素的吸收富集情况。结果表明：小白菜、白萝卜对4种抗生素均有吸收，作物组织中抗生素的浓度随土壤中浓度的升高而增加，表现出显著的正相关。当粪肥中抗生素浓度由20 mg·kg-1增加到50 mg·kg-1时，小白菜茎叶中4种抗生素的含量分别增加了67％（四环素，TC）、105％（土霉素，OTC）、71％（金霉素，CTC）和83％（强力霉素，DC），其最高含量分别为（51.56±8.85）（TC）、（31.89±4.29）（OTC）、（37.58±5.84）（CTC）、（17.73±2.39）（DC）μg·kg-1，萝卜组织中4种抗生素的含量分别增加了58％（TC）、41％（ OTC）、88％（CTC）和24％（DC），其最高含量分别为（13.93±1.96）（TC）、（14.39±1.16）（OTC）、（17.30±3.05）（CTC）、（8.86±1.28）（DC）μg·kg-1。土壤性质影响抗生素向作物中的迁移，红壤处理与砂壤处理比，4种抗生素在萝卜茎叶与小白菜茎叶中的浓度分别降低了11％~44％和21％~47％。
위연구유궤비중잔류항생소재토양-소채체계중적천이，채용분재시험연구료소백채화백라복대사배소류항생소적흡수부집정황。결과표명：소백채、백라복대4충항생소균유흡수，작물조직중항생소적농도수토양중농도적승고이증가，표현출현저적정상관。당분비중항생소농도유20 mg·kg-1증가도50 mg·kg-1시，소백채경협중4충항생소적함량분별증가료67％（사배소，TC）、105％（토매소，OTC）、71％（금매소，CTC）화83％（강력매소，DC），기최고함량분별위（51.56±8.85）（TC）、（31.89±4.29）（OTC）、（37.58±5.84）（CTC）、（17.73±2.39）（DC）μg·kg-1，라복조직중4충항생소적함량분별증가료58％（TC）、41％（ OTC）、88％（CTC）화24％（DC），기최고함량분별위（13.93±1.96）（TC）、（14.39±1.16）（OTC）、（17.30±3.05）（CTC）、（8.86±1.28）（DC）μg·kg-1。토양성질영향항생소향작물중적천이，홍양처리여사양처리비，4충항생소재라복경협여소백채경협중적농도분별강저료11％~44％화21％~47％。
Veterinary antibiotics may enter soil-plant system via soil applications of animal manure, posing risks to human health. A mi-croplot experiment was conducted in greenhouse to investigate the uptake of selected four tetracycline antibiotics, including tetracycline(TC), oxytetracyline(OTC), chlortetracycline(CTC), and doxytetracyline(DC)by pakchoi and radish grown in a manure-amended soil. Treat-ments were 0, 5, 20, 50 mg antibiotics kg-1 of manure. The manure was applied at a rate of 20 000 kg·hm-2. Both crops took up four antibiotics during 35 d(pakchoi)and 50 d(radish)periods. Concentrations of the antibiotics in plant increased with increasing antibiotics in soils, and they showed a significant positive correlation. When the concentrations of antibiotics in manure were increased from 20 mg·kg-1 to 50 mg·kg-1, the concentrations of four antibiotics in plants were increased by 67%(TC), 105%(OTC), 71%(CTC), and 83%(DC)for pakchoi and 58%(TC), 41%(OTC), 88%(CTC), and 24%(DC)for radish. The maximum concentration was(51.56±8.85)(TC),(31.89±4.29)(OTC), (37.58±5.84)(CTC), and(17.73±2.39)(DC)μg·kg-1 in pakchoi and(13.93±1.96)(TC),(14.39± 1.16)(OTC),(17.30± 3.05)(CTC), and(8.86± 1.28)(DC)μg·kg-1 fresh weight in radish. Soil properties greatly affected the uptake of four tetracycline antibiotics by crops. Compared to sandy loam soil, concentrations of antibiotics in radish and pakchoi cultivated in red soil decreased by 11%~44%and 21%~47%, respectively. These results indicate that consuming produces from soils amended with manures containing low-levels of antibiotics might pose potential risks to human health.