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首页> 外文期刊>Applied and Environmental Microbiology >Adsorption of Enteroviruses to Soil Cores and Their Subsequent Elution by Artificial Rainwater
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Adsorption of Enteroviruses to Soil Cores and Their Subsequent Elution by Artificial Rainwater

机译：肠病毒对土壤核心的吸附及其随后的人工雨水洗脱

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The adsorption and elution of a variety of human enteroviruses in a highly permeable, sandy soil was studied by using cores (43 by 125 mm) collected from an operating recharge basin on Long Island. Viruses studied included field and reference strains of polioviruses types 1 and 3 and reference strains of coxsackie virus B3 and echovirus types 1 and 6. Viruses suspended in treated sewage effluent were allowed to percolate through soil cores, and the filtrate was assayed for unadsorbed viruses. To determine the likelihood of desorption and mobilization, soil-bound viruses were subjected to a rinse with either treated sewage effluent or simulated rainwater which reflected the anion, cation, and pH characteristics of a typical northeastern United States rainfall. The results demonstrated that all polioviruses tested, including both reference and field strains, adsorbed extremely well to cores. Adsorption was somewhat reduced when clean, unconditioned soils were used. Soil-bound poliovirus strain LSc was not significantly mobilized by flooding columns with either a sewage effluent or rainwater rinse. One virus was mobilized by both types of rinses. The amount of viruses mobilized by rainwater rinses ranged from 24 to 66%. Variable adsorption-elution results were observed with other enteroviruses. Two guanidine-resistant mutants of poliovirus LSc demonstrated a soil adsorption-elution profile different from that of the parent strain. The data support the conclusion that soil adsorption-elution behavior is strain dependent and that poliovirus, particularly strain LSc, represents an inappropriate model.
机译：通过使用从长岛的一个操作性补给池中收集的岩心（43 x 125毫米）研究了高渗透性沙质土壤中多种人肠病毒的吸附和洗脱。研究的病毒包括1型和3型脊髓灰质炎病毒的野外和参考株，以及B3型和柯萨奇病毒B1型和6型回声病毒的参考株。悬浮在处理过的污水中的病毒可以通过土壤核心渗透，并分析滤液中未吸附的病毒。为了确定解吸和迁移的可能性，将结合土壤的病毒用经过处理的污水或模拟雨水冲洗，以反映美国东北部典型降雨的阴离子，阳离子和pH特性。结果表明，所有测试的脊髓灰质炎病毒，包括参考株和野毒株，都对核心的吸附极好。当使用干净的无条件的土壤时，吸附会有所降低。土壤结合的脊髓灰质炎病毒菌株LSc不能通过污水流出或雨水冲洗的水柱大量移动。两种冲洗都调动了一种病毒。雨水冲洗带动的病毒数量范围为24％至66％。用其他肠病毒观察到可变的吸附-洗脱结果。脊髓灰质炎病毒LSc的两个耐胍基突变体显示出与亲本菌株不同的土壤吸附-洗脱曲线。数据支持这样的结论，即土壤吸附-洗脱行为取决于菌株，并且脊髓灰质炎病毒，尤其是LSc菌株代表了不合适的模型。

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