Premium
Effect of temperature upon linolenic acid level in wheat and rye seedlings
Author(s) -
Farkas Tibor,
DériHadlaczky Éva,
Belea Adonisz
Publication year - 1975
Publication title -
lipids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.601
H-Index - 120
eISSN - 1558-9307
pISSN - 0024-4201
DOI - 10.1007/bf02532454
Subject(s) - linolenic acid , linoleic acid , food science , clinical chemistry , chemistry , fatty acid , botany , biology , biochemistry
The fatty acid composition, of leaves of nine wheat and one rye species was studied in relation to temperature both under laboratory and field conditions. Seedings exposed to cold (2 C) either in laboratory or on fild had higher levels of linolenic acid in their lipids than their greenhouse (22 C) germinated controls. The increase of the level of linolenic acid was accompanied by a decrease in the level of linoleic acid in field grown species. A relationship seems to exist between sensitivity to cold and accumulation of linolenic acid; those species resistant to cold displayed greater increase in their linolenic acids than those more sensitive to chilling temperatures. This response in cold resistant species was quite rapid, two days of cold exposure resulted in a significant increase of linolenic acid. The possible mechanisms responsible for the observed changes are discussed.