The effect of organic osmoprotectors on Aeromonas trota and A. hydrophila grown under high sodium chloride concentrations
Braz. j. microbiol
; Braz. j. microbiol;342003.
Article
in En
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LILACS-Express
| LILACS, VETINDEX
| ID: biblio-1469506
Responsible library:
BR68.1
ABSTRACT
The effect of organic solutes on the growth of Aeromonas trota and A. hydrophila was evaluated. Proline and glutamic acid were not effective as osmoprotectors, but betaine exerts osmoprotection allowing the growth of both strains in inhibitory concentrations of NaCl. Growth kinetics suggests that the halotolerance difference between the strains is associated with the synthesis of osmolytes rather than betaine uptake.
RESUMO
O efeito de solutos orgânicos no crescimento de Aeromonas trota e A. hydrophila foi avaliado. A prolina e o ácido glutâmico não apresentaram efeito osmoprotetor, mas a betaina exerceu osmoproteção permitindo o crescimento de ambas bactérias em concentrações inibitórias de NaCl. A cinética do crescimento sugere que a diferença em halotolerância entre as linhagens está associada à síntese de osmolitos, mais do que à capacidade de acúmulo de betaina.
Full text:
1
Collection:
01-internacional
Database:
LILACS
/
VETINDEX
Language:
En
Journal:
Braz. j. microbiol
Journal subject:
MICROBIOLOGIA
Year:
2003
Document type:
Article
Country of publication:
Brazil