| Registro completo |
| Provedor de dados: |
Anais da ABC (AABC)
|
| País: |
Brazil
|
| Título: |
Comparative study on the biodegradation of chlorpyrifos-methyl by Bacillus megaterium CM-Z19 and Pseudomonas syringae CM-Z6
|
| Autores: |
ZHU,JIANGWEI
ZHAO,YAN
RUAN,HONGHUA
|
| Data: |
2019-01-01
|
| Ano: |
2019
|
| Palavras-chave: |
Bacillus megaterium
Pseudomonas syringae
Chlorpyrifos-methyl
3
5
6-trichloro-2-pyridinol
Biodegradation
|
| Resumo: |
Abstract: The strains CM-Z19 and CM-Z6, which are capable of highly degrading chlorpyrifos-methyl, were isolated from soil. They were identified as Bacillus megaterium CM-Z19 and Pseudomonas syringae CM-Z6, respectively, based on the 16S rRNA and an analysis of their morphological, physiological and biochemical characteristics. The strain CM-Z19 showed 92.6% degradation of chlorpyrifos-methyl (100 mg/L) within 5 days of incubation, and the strain CM-Z6 was 99.1% under the same conditions. In addition, the degradation characteristics of the two strains were compared and studied, and the results showed that the strain CM-Z19 had higher phosphoesterase activity and ability to degrade the organophosphorus pesticide than did the strain CM-Z6. However, the strain CM-Z19 could not degrade its first hydrolysis metabolite 3,5,6-trichloro-2-pyridinol (TCP) and could not completely degrade chlorpyrifos-methyl. The strain CM-Z6 could effectively degrade TCP and could degrade chlorpyrifos-methyl more quickly than strain CM-Z19.
|
| Tipo: |
Info:eu-repo/semantics/article
|
| Idioma: |
Inglês
|
| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000500624
|
| Editor: |
Academia Brasileira de Ciências
|
| Relação: |
10.1590/0001-3765201920180694
|
| Formato: |
text/html
|
| Fonte: |
Anais da Academia Brasileira de Ciências v.91 n.3 2019
|
| Direitos: |
info:eu-repo/semantics/openAccess
|
