BIOSS
Centre for Biological Signalling Studies

Biosynthesis of allene oxides in Physcomitrella patens

30.11.2012

Scholz J, Brodhun F, Hornung E, Herrfurth C, Stumpe M, Beike AK, Faltin B, Frank W, Reski R, Feussner I.

BMC Plant Biol. 2012;12(1):228.

BMC Plant Biol.           online article

The moss Physcomitrella contains high amounts of polyunsaturated fatty acids that can be metabolized to oxylipins. Cyclopentenone-oxylipines act as signalling molecules and are synthesized by conversion of a fatty acid hydroperoxide to an allene oxide, a step catalyzed by allene oxide synthase (AOS). Two AOS isoforms were characterized with regard to substrate specificity and subcellular localization. Their functions were inferred from targeted deletion mutants.