New classes of betaine lipids

Research over the last few years has shown the abundance of diacylglycerols with betaine headgroups in organisms such as seaweeds, algae and fungi. Recognising this, we’ve updated LMSD and added classes of betaine mono- and di-radylglycerols in the glycerolipids category. Existing betaine lipids have been moved into these classes. 

Due to the experimental difficulty, the position of acyl chains, and double bonds within them, has yet to be determined for many betaine lipids, so there are doubtless many more to add to LMSD in coming years.