[Diversity of culturable sulfur-oxidizing bacteria in deep-sea hydrothermal vent environments of the South Atlantic].
Wei Sheng Wu Xue Bao
; 56(1): 88-100, 2016 Jan 04.
Article
em Zh
| MEDLINE
| ID: mdl-27305783
ABSTRACT
OBJECTIVE:
To investigate the diversity of culturable sulfur-oxidizing bacteria in hydrothermal vent environments of the South Atlantic, and analyze their characteristics of sulfur oxidation.METHODS:
We enriched and isolated sulfur-oxidizing bacteria from hydrothermal vent samples collected from the South Atlantic. The microbial diversity in enrichment cultures was analyzed using the Denatural Gradient Gel Electrophoresis method. Sulfur-oxidizing characteristics of the isolates was further studied by using ion chromatography.RESULTS:
A total of 48 isolates were obtained from the deep-sea hydrothermal vent samples, which belonged to 23 genera and mainly grouped into alpha-Proteobacteria (58.3%), Actinobacteria (22.9%) and gama-Proteobacteria (18.8%). Among them, the genus Thalassospira, Martelella and Microbacterium were dominant. About 60% of the isolates exibited sulfur-oxidizing ability and strain L6M1-5 had a higher sulfur oxidation rate by comparison analysis.CONCLUSION:
The diversity of sulfur-oxidizing bacteria in hydrothermal environments of the South Atlantic was reported for the first time based on culture-dependent methods. The result will help understand the biogechemical process of sulfur compounds in the deep-sea hydrothermal environments.
Buscar no Google
Base de dados:
MEDLINE
Assunto principal:
Água do Mar
/
Enxofre
/
Bactérias
/
Biodiversidade
/
Fontes Hidrotermais
Idioma:
Zh
Ano de publicação:
2016
Tipo de documento:
Article