Evaluation of endosulfan degradation capacity by six pure strains isolated from a horticulture soil

被引：7

作者：

Casanova, Adriana ^{[1
]}

Cabrera, Sonia ^{[2
]}

Diaz-Ruiz, Gloria ^{[3
]}

Hernandez, Sergio ^{[4
]}

Wacher, Carmen ^{[3
]}

Zubillaga, Marta ^{[2
]}

Ortiz, Irmene ^{[4
]}

机构：

[1] Univ Autonoma Metropolitana Cuajimalpa, Licenciatura Ingn Biol, Mexico City, DF, Mexico

[2] Univ Buenos Aires, Fac Agron, Dept Ingn Agr & Uso Tierra, Buenos Aires, DF, Argentina

[3] Univ Nacl Autonoma Mexico, Fac Quim, Dept Alimentos & Biotecnol, Mexico City, DF, Mexico

[4] Univ Autonoma Metropolitana Cuajimalpa, Dept Proc & Tecnol, Av Vasco Quiroga 4871, Mexico City 05348, DF, Mexico

来源：

FOLIA MICROBIOLOGICA | 2021年 / 66卷 / 06期

关键词：

ORGANOCHLORINE INSECTICIDE; DEGRADES ENDOSULFAN; TOXIC METABOLITE; BIODEGRADATION; BACTERIAL; BIOMINERALIZATION; MINERALIZATION; MICROFLORA; PESTICIDES; ENRICHMENT;

D O I：

10.1007/s12223-021-00899-5

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

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 alpha 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 beta 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.

引用

页码：973 / 981

页数：9