Isolation of Succinivibrionaceae implicated in low methane emissions from Tammar wallabies.
Science
; 333(6042): 646-8, 2011 Jul 29.
Article
em En
| MEDLINE
| ID: mdl-21719642
ABSTRACT
The Tammar wallaby (Macropus eugenii) harbors unique gut bacteria and produces only one-fifth the amount of methane produced by ruminants per unit of digestible energy intake. We have isolated a dominant bacterial species (WG-1) from the wallaby microbiota affiliated with the family Succinivibrionaceae and implicated in lower methane emissions from starch-containing diets. This was achieved by using a partial reconstruction of the bacterium's metabolism from binned metagenomic data (nitrogen and carbohydrate utilization pathways and antibiotic resistance) to devise cultivation-based strategies that produced axenic WG-1 cultures. Pure-culture studies confirm that the bacterium is capnophilic and produces succinate, further explaining a microbiological basis for lower methane emissions from macropodids. This knowledge also provides new strategic targets for redirecting fermentation and reducing methane production in livestock.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ácido Succínico
/
Succinivibrionaceae
/
Sistema Digestório
/
Macropodidae
/
Metano
Limite:
Animals
Idioma:
En
Revista:
Science
Ano de publicação:
2011
Tipo de documento:
Article