Send to

Choose Destination
Antonie Van Leeuwenhoek. 1990 Nov;58(4):291-8.

Formation and breakdown of glycine betaine and trimethylamine in hypersaline environments.

Author information

Division of Microbial and Molecular Ecology, Hebrew University of Jerusalem, Israel.


Glycine betaine is accumulated as a compatible solute in many photosynthetic and non-photosynthetic bacteria--the last being unable to synthesize the compound--and thus large pools of betaine can be expected to be present in hypersaline environments. A variety of aerobic and anaerobic microorganisms degrade betaine to among other products trimethylamine and methylamine, in a number of different pathways. Curiously, very few of these betaine breakdown processes have yet been identified in hypersaline environments. Trimethylamine can also be formed by bacterial reduction of trimethylamine N-oxide (also by extremely halophilic archaeobacteria). Degradation of trimethylamine in hypersaline environments by halophilic methanogenic bacteria is relatively well documented, and leads to the formation of methane, carbon dioxide and ammonia.

[Indexed for MEDLINE]

Supplemental Content

Loading ...
Support Center