Fatty acid composition of lipids in the calluses of two pine species <Emphasis Type="Italic">Pinus sibirica</Emphasis> and <Emphasis Type="Italic">Pinus sylvestris</Emphasis> |
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Authors: | S P Makarenko Yu M Konstantinov V N Shmakov T A Konenkina |
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Institution: | 1.Siberian Institute of Plant Physiology and Biochemistry, Siberian Division,Russian Academy of Sciences,Irkutsk,Russia |
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Abstract: | The fatty acid (FA) composition of callus lipids in two pine species, Pinus sibirica Du Tour and P. sylvestris L. was studied. Callus lipids were characterized by a high content of unsaturated FAs: 81.7% in P. sibirica and 63.2% in P. sylvestris. Among them, oleic and linoleic acids predominated (22.9 and 34.0% of total FAs in P. sibirica and 17.6 and 27.8% in P. sylvestris, respectively). Callus lipids also contained Δ5-UPIFA (unsaturated polymethyle-interrupted FAs), where pinoleic and sciadonic
acids predominated. A comparison of FAs in the lipids of P. sylvestris calluses derived from needle and needle photosynthesizing tissues of this pine species showed that callus lipids were characterized
by a greater diversity of Δ5-UPIFA but a lower degree of FA unsaturation and he higher level of Δ5-UPIFA. |
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