Lipids, fatty acids and lipoxygenase activity in developing poppy seedlings, Papaver somniferum
1994
Bezakova, L. | Mistrik, I. (Slovenska Akademia Vied, Bratislava (Slovakia). Botanicky Ustav) | Kovacs, P.
The amount of total lipids and the distribution of free fatty acids (FA) and lipoxygenase activity (LOX) were determined during poppy seedling development. The amount of total lipids changed only marginally in whole poppy seedlings. In lipid fractions linoleic acid was present in the highest proportion. The content of saturated FA was significantly lower than that of unsaturated FA. Development profiles of individual FA and their distribution in individual organs of poppy seedlings suggest that a certain part of FA undergoes redistribution between endosperm and cotyledons and other organs of developing poppy seedlings. LOX activity was the highest in poppy seedlings on day 4 post-imbibition and this activity was mainly located in cotyledons. The best substrate for LOX from poppy seedlings was found to be linoleic acid. From antioxidants tested, the inhibition by rutin was the highest.
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