Transplastomic tobacco plants expressing a fatty acid desaturase gene exhibit altered fatty acid profiles and improved cold tolerance
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چکیده
منابع مشابه
Enhanced cold tolerance in transgenic tobacco expressing a chloroplast omega-3 fatty acid desaturase gene under the control of a cold-inducible promoter.
A new cold-inducible genetic construct was cloned using a chloroplast-specific omega-3-fatty acid desaturase gene (FAD7) under the control of a cold-inducible promoter (cor15a) from Arabidopsis thaliana. RT-PCR confirmed a marked increase in FAD7 expression, in young Nicotiana tabacum (cv. Havana) plants harboring cor15a-FAD7, after a short-term exposure to cold. When young, cold-induced tobacc...
متن کاملGenetic Enhancement of Cold Tolerance by Expression of a Gene for Chloroplast W-3 Fatty Acid Desaturase in Transgenic Tobacco'
l h e increased produdion of trienoic fatty acids, hexadecatrienoic (163) and linolenic (183) acids, is a response conneded with cold acclimation of higher plants and is thought to proted plant cells against cold damage. lransgenic tobacco (Nicotiana tabacum cv SR1) plants that contain increased levels of 16:3 and 18:3 fatty acids, and correspondingly decreased levels of their precursors, hexad...
متن کاملGenetic Enhancement of Cold Tolerance by Expression of a Gene for Chloroplast [omega]-3 Fatty Acid Desaturase in Transgenic Tobacco.
The increased production of trienoic fatty acids, hexadecatrienoic (16:3) and linolenic (18:3) acids, is a response connected with cold acclimation of higher plants and is thought to protect plant cells against cold damage. Transgenic tobacco (Nicotiana tabacum cv SR1) plants that contain increased levels of 16:3 and 18:3 fatty acids, and correspondingly decreased levels of their precursors, he...
متن کاملInhibition of polyunsaturated fatty acid accumulation in plants expressing a fatty acid epoxygenase.
Earlier, we described the isolation of a Crepis palaestina cDNA (Cpal2) which encoded a Delta12-epoxygenase that could catalyse the synthesis of 12,13-epoxy-cis-9-octadecenoic acid (18:1E) from linoleic acid (18:2). When the Cpal2 gene was expressed under the control of a seed-specific promoter in Arabidopsis, plants were able to accumulate small amounts 18:1E and 12,13-epoxy-cis-9,15-octadec-2...
متن کاملFatty acid desaturase mutants of Saccharomyces cerevisiae.
Genetic and biochemical analyses were conducted on fatty acid mutants of yeast deficient for Delta(9)-desaturase activity in the production of palmitoleate and oleate. Two genetic loci were observed and two others are inferred; three of these were represented by respiratory-deficient (petite) strains. All strains were incapable of converting palmitate to palmitoleate and stearate to oleate whet...
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ژورنال
عنوان ژورنال: Transgenic Research
سال: 2008
ISSN: 0962-8819,1573-9368
DOI: 10.1007/s11248-008-9164-9