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Ectoine as the predominant osmolyte in the marine bacterium Marinobacter hydrocarbonoclasticus grown on eicosane at high salinities
Author(s) -
FernandezLinares L.,
Faure R.,
Bertrand J.C.,
Gauthier M.
Publication year - 1996
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1111/j.1472-765x.1996.tb01135.x
Subject(s) - ectoine , osmolyte , betaine , halophile , glycine , bacteria , chemistry , osmoprotectant , seawater , osmoregulation , biochemistry , food science , biology , salinity , proline , ecology , amino acid , genetics
L. FERNANDEZ‐LINARES, R. FAURE, J.‐C. BERTRAND AND M. GAUTHIER. 1996. Ectoine was detected by 13 C‐nuclear magnetic resonance spectroscopy in extracts of the halophilic marine bacterium Marinobacter hydrocarbonoclasticus grown at different NaCl concentrations (0.6, 1.5, 2.5 mol l ‐1 ) in synthetic seawater on eicosane as the sole source of carbon and energy. Ectoine was synthesized as the principal osmolyte in response to stress. However, when the medium was supplemented with glycine betaine, this osmolyte was transported into the cells and replaced ectoine.