Zeapyranolactone − A novel strigolactone from maize

Publication date: April 2018 Source:Phytochemistry Letters, Volume 24 Author(s): Tatsiana V. Charnikhova, Katharina Gaus, Alexandre Lumbroso, Mark Sanders, Jean-Paul Vincken, Alain De Mesmaeker, Carolien P. Ruyter-Spira, Claudio Screpanti, Harro J. Bouwmeester The structure of a new strigolactone present in the root exudate and root extract of maize hybrid cv NK Falkone plants was elucidated and characterized as zeapyranolactone: Methyl .(E)-3-((4-methyl-5-oxo-2,5-dihydrofuran-2-yl)oxy)-2-(4,4,5-trimethyl-2-oxo-2,3,4,6,7,7a-hexahydrocyclopenta[b]pyran-7-yl)acrylate. Unlike any other strigolactone published so far, it contains a 4,4-dimethyltetrahydropyran-2-one as A ring. The impact of the elucidation of this structure on the earlier postulated biosynthetic pathway of another maize strigolactone, zealactone, is discussed. Graphical abstract

Source: Phytochemistry Letters - March 21, 2018 Category: Chemistry Source Type: research