SUMMARY: When a column of air-dried soil was perfused with a mineral salt solution containing ‘Dalapon’ (Dow Chemical Company, Michigan), the concentration of dichloropropionate (Dalapon's herbicidal component) became minimal in 15--17 days. The soil was reperfused and the dichloropropionate became minimal in 4--5 days.Three strains of the genus Pseudomonas, exhibiting a requirement for dichloropropionate, were isolated from the perfusate. Two strains attacked dichloropropionate when allowed to perfuse through sterilized soil.A further seven micro-organisms, with a similar requirement, were isolated from pasture soils treated with Dalapon.
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机译：概述：当用含有'Dalapon'（Michigan）的矿物盐溶液灌注一柱时，含有'Dow Chemical Company，Michigan），二氯丙酸二氯丙酸酯（Dalapon的除草剂组分）在15-17天内变得最小。再灌注土壤，二氯丙酸酯在4-5天内变得最小。从灌注液中分离出伪霉菌属的三种菌株，表现出二氯丙酯的要求。当允许通过灭菌的土壤灌注时，两种菌株攻击二氯丙酸酯。另外7种微生物，从用达滨处理的牧场土壤中分离出类似的要求。
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