Joanne L. Gellerman

TL;DR: Alkaline isomerization combined with ozonization-hydrogenation-GLC combined with these procedures was applied to determine the unusual double bond structures, and permits positional identification of an internal double bond.

TL;DR: The radioactivity in the carboxyl groups of 4,7,10,13,16,19-docosahexaenoic and 5,8,11,14,17-eicosapentaenoic acids corresponded closely to an even distribution of 4 C in the chain, however, radioactivity at least 75% of this acid must have been reconstituted from a C 20 chain.

TL;DR: Lipid classes from four species of mosses, Mnium cuspidatum, and Mnium medium from Minnesota, and Hylocomium splendens and Pleurozium schreberi from Alaska, were analyzed and monogalactosyldiacylglycerols and phosphatidylethanol-amines were enriched in arachidonic acid and the galactolipids in eicosapentaenoic acid.

TL;DR: Results of incubations with labeled fatty acids indicated that, in S. parasitica, oleic, linoleic, (6,9,12)-linolenic and arachidonic acids are major intermediates in the pathway to eicosapentaenoic acid, andethyl-directed desaturation of (n-6) to ( n-3) acids does not occur with C18 acids but is specific for the polyunsaturated C20 chain length.