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Evaluation of endosulfan degradation capacity by six pure strains isolated from a horticulture soil
Folia Microbiologica ( IF 2.6 ) Pub Date : 2021-07-14 , DOI: 10.1007/s12223-021-00899-5
Adriana Casanova 1 , Sonia Cabrera 2 , Gloria Díaz-Ruiz 3 , Sergio Hernández 4 , Carmen Wacher 3 , Marta Zubillaga 2 , Irmene Ortíz 4
Affiliation  

Endosulfan is an organochlorine pesticide included in the Stockholm Convention for Persistent Organic Compounds. The utilization of endosulfan as the sole source of carbon and its mineralization was evaluated using pure strains of Bacillus subtilis, Bacillus pseudomycoides, Peribacillus simplex, Enterobacter cloacae, Achromobacter spanius, and Pseudomonas putida, isolated from soil with historical pesticide use. The consumption of the α isomer of endosulfan by five of the six strains studied was higher than 95%, while B. subtilis degraded only 76% of the initial concentration (14 mg/L). On the other hand, the degradation of the β isomer was approximately 86% of the initial concentration (6 mg/L) by B. subtilis, P. simplex, and B. pseudomycoides and 95% by P. putida, E. cloacae, and A. spanius. The ability of A. spanius, P. simplex, and B. pseudomycoides to degrade endosulfan has not been previously reported. The production of endosulfan lactone by the Bacillus strains, as well as A. spanius and P. putida, indicated that endosulfan was degraded by the hydrolytic pathway.



中文翻译:

从园艺土壤中分离的六株纯菌株对硫丹降解能力的评价

硫丹是一种有机氯农药,包括在《关于持久性有机化合物的斯德哥尔摩公约》中。使用的纯菌株硫丹作为碳的唯一来源的使用和它的矿化评价枯草芽孢杆菌pseudomycoides芽孢杆菌Peribacillus单纯形阴沟肠杆菌无色spanius,和恶臭假单胞菌,来自土壤与历史农药使用隔离。所研究的 6 个菌株中有 5 个菌株对硫丹 α 异构体的消耗量高于 95%,而枯草芽孢杆菌仅降解初始浓度 (14 mg/L) 的 76%。在另一方面,β的降解异构体为初始浓度的约86%(6毫克/升)由枯草芽孢杆菌P.单面,和B. pseudomycoides和95%由恶臭假单胞菌阴沟肠杆菌,和A.spanius。的能力A. spaniusP.单纯B. pseudomycoides降解硫丹以前没有被报道。芽孢杆菌菌株以及A. spaniusP. putida生产硫丹内酯,表明硫丹被水解途径降解。

更新日期:2021-07-15
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