ISSN:
1432-072X
Keywords:
Cyanobacteria
;
Microcystis
;
Glucosylglycerol
;
Salt adaptation
;
Synthesis rate
;
Turnover
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract The unicellular cyanobacterium Microcystis furma tolerates salinity by accumulating the osmoprotective compound glucosylglycerol. After salt shock, the initial rate of glucosylglycerol synthesis is independent of the NaCl concentration used. In pulse chase experiments with NaH14CO3, synthesis of glucosylglycerol by salt-adapted cells was found to be rapid, whereas no sign of its breakdown was detected. Therefore, it is concluded that no turnover of glucosylglycerol takes place in salt-adapted cells. The specific capacity of the glucosylglycerol-forming enzyme system may be one reason for the salt resistance limit.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00456704