Storage lipids and proteins of Euterpe edulis seeds
Biocell
;
33(2): 99-106, Aug. 2009. ilus, tab, graf
Artículo
en Inglés
| LILACS
| ID: lil-595034
ABSTRACT
Comparative studies on fatty acid and protein composition of the endosperm and embryo of palmito (Euterpe edulis Martius) were conducted using gas-liquid chromatography and sodium dodecyl sulfate-polyacrylamide gel electrophoresis. On a dry weight basis, the embryo contained extremely lower amounts of lipids and proteins than did the endosperm, which was associated with the scarce lipid and protein bodies previously reported in axis and cotyledon. The fatty acid composition also exhibited differences between both tissues (I) the fatty acid diversity was greater in embryo than in endosperm; (II) embryo and endosperm contained predominantly linoleic, palmitic, oleic and stearic acids even though the relative values were different for each tissue. As compared to other palm species, the higher fatty acid unsaturation in Euterpe edulis seed could be involved in the previously reported short longevity and recalcitrant behavior during storage. Proteins of both tissues were heterogeneous in molecular mass. Some proteins were tissue-specific, but other were common, among them a highly glycosylated protein which migrated at about 55 kDa. We hypothesize that the latter, also reported in all previously studied palm species, is one of the proteins characterizing the Arecaceae family.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Proteínas de Plantas
/
Semillas
/
Arecaceae
/
Ácidos Grasos
/
Frutas
Idioma:
Inglés
Revista:
Biocell
Asunto de la revista:
Clulas
Año:
2009
Tipo del documento:
Artículo
País de afiliación:
Argentina
Institución/País de afiliación:
CONICET-UNLP/AR
/
INTA/AR
/
Universidad de Buenos Aires/AR
Similares
MEDLINE
...
LILACS
LIS