Open AccessAccumulation of glycerol by the heterobasidiomycetous yeast Rhodosporidium sphaerocarpum in response to external hypertonicity due to NaCl
Author(s) -
Yagi Tadashi,
Ashibe Emi
Publication year - 1994
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.1994.tb06640.x
Subject(s) - glycerol , yeast , polyol , xylitol , chemistry , food science , biochemistry , biology , botany , biophysics , fermentation , organic chemistry , polyurethane
The heterobasidiomycetous yeast Rhodosporidium sphaerocarpum isolated from the Antarctic Ocean and a saltpan, showed marked tolerance to high concentrations of NaCl in the growth medium. This yeast accumulated glycerol as a major osmoregulator, as well as Na + and Cl − , in response to changes in the concentration of NaCl in the external medium. The low levels of another cellular polyol, xylitol, did not respond to changes in the external medium.