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Science. 2000 Jan 21;287(5452):476-9.

Trienoic fatty acids and plant tolerance of high temperature.

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  • 1Department of Biology and Department of Forestry, Kyushu University, Fukuoka 812-8581, Japan.


The chloroplast membrane of higher plants contains an unusually high concentration of trienoic fatty acids. Plants grown in colder temperatures have a higher content of trienoic fatty acids. Transgenic tobacco plants in which the gene encoding chloroplast omega-3 fatty acid desaturase, which synthesizes trienoic fatty acids, was silenced contained a lower level of trienoic fatty acids than wild-type plants and were better able to acclimate to higher temperatures.

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