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首页> 外文期刊>Journal of environmental science and health >Antibiotic uptake by plants from manure-amended soils
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Antibiotic uptake by plants from manure-amended soils

机译：植物从肥料改良土壤中吸收的抗生素

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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 saliva) 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) ＞ 0.5 mg kg~(-1)).
机译：抗生素被广泛应用于牲畜以促进生长并减少疾病。因此，动物粪便中通常含有抗生素。一旦将肥料施用到农田上以提高土壤生产力，农作物就会暴露于可能在土壤中存活数天至数百天的抗生素。这项研究的目的是评估改良肥料中的胡萝卜（胡萝卜），生菜（唾液）和萝卜（萝卜）对庆大霉素和链霉素的吸收。处理为0、0.5和1 mg抗生素kg〜（-1）土壤。在温室中进行了两个盆栽实验。第一次对三种农作物进行，第二次仅对萝卜进行。在萝卜中，庆大霉素浓度的增加在0和0.5和1.0 mg kg〜（-1）处理之间均显着，但在0.5和1.0 mg kg〜（-1）处理之间不明显。 0、0.5和1 mg kg〜（-1）的平均值分别为35.5、60.0和57.4μgkg〜（-1）。然而，三种处理之间萝卜中链霉素浓度的增加并不显着，对于0、0.5和1 mg kg〜（-1），平均值分别为12.1、15.2和17.4μgkg〜（-1）。 ， 分别。在胡萝卜根和生菜叶之间，在处理之间没有观察到庆大霉素或链霉素浓度的显着增加。这三种农作物吸收的庆大霉素（小分子）量比链霉素（大分子）高。通常，植物组织中的抗生素水平随着粪肥中抗生素浓度的增加而增加（1 mg kg〜（-1）＞ 0.5 mg kg〜（-1））。

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