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Plant Physiol. 1972 Jul;50(1):69-72.

Sterol Changes during Germination of Nicotiana tabacum Seeds.

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1
Department of Agronomy, University of Kentucky, Lexington, Kentucky 40506.

Abstract

The identity, composition, and concentration of the total, free, esterified, and glycosidic sterol fractions were determined during germination of tobacco seeds. The total, free, and esterified sterols increased, with stigmasterol and campesterol accounting for most of the increase. Steryl glycosides decreased during germination, and stigmasteryl and sitosteryl glycosides showed the largest decrease. During germination, sitosterol was the major sterol in all fractions but stigmasterol and campesterol showed the greatest changes. The fatty acid composition of the steryl esters and acylated steryl glycosides most closely resembled the di- and triglycerides.

PMID:
16658135
PMCID:
PMC367318
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