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Seed dimorphism in Salicornia europaea : Nutrient reserves
Author(s) -
Austenfeld FranzArnold
Publication year - 1988
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1988.tb05432.x
Subject(s) - chemistry , dry weight , nutrient , fructose , composition (language) , sucrose , food science , nitrogen , sodium , linoleic acid , oleic acid , botany , zoology , fatty acid , biology , biochemistry , organic chemistry , linguistics , philosophy
Median and lateral seeds of Salicornia europaea L. were separately analysed for their sizes and nutrient reserves. The mean air‐dry weight of a single median and lateral seed was 0.31 and 0.25 mg, respectively. The composition as well as the concentration of the nutrient reserves were similar in both seed types. The bulk of the cations was derived from K + , followed by Mg 2+ , Na + and Ca 2+ . The chloride content was somewhat higher than the sodium content, and phosphate was equalled by acid soluble Ca 2+ and Mg 2+ . Starchy compounds and sucrose were present in equal amounts, each of them accounted for about 50% of the carbohydrates. Glucose and fructose were less than 1%. Protein‐nitrogen (ethanol‐insoluble N) was about 34 g (kg dry seeds) −1 . About 7 g (kg dry seeds) −1 was ethanol‐soluble nitrogen, of which 10% was derived from amino acids. The total lipid content was more than 290 g (kg dry seeds) −1 , 65% were calculated to be glycerides. More than 90% of the fatty acids consisted of linoleic and oleic acids, the majority (72%) of which was linoleic acid.