| Autor: |
Markovskaya, E. F., Rozentzvet, O. A., Shmakova, N. Y., Zorina, A. A., Il'inova, M. A. |
| Zdroj: |
Biology Bulletin Reviews; Oct2022, Vol. 12 Issue 5, p551-560, 10p |
| Abstrakt: |
The fatty acid (FA) content and composition of total lipids in the leaves of eleven dominant and rare plant species inhabiting the Arctic tundra of West Spitsbergen during active vegetation were analyzed. The species differ in biology, ranges, distribution, and ecotope association. In total 21 types of FAs with a chain length of 16 to 24 carbon atoms containing from 2 to 4 double bonds have been identified. It was found that in all the plants studied, palmitic (16:0), linolenic (18:3(n-3)), stearic (18:0), palmitoleic (16:1(n-7)), oleic (18 :1(n-9)), and linoleic (18:2(n-6)) acids make a high contribution to the FA composition. Ten species are characterized by the presence of long-chain FAs with more than 20 carbon atoms. The presence of tetraene FAs was noted in 5 Arctic species. Seven groups of higher vascular plants were identified with cluster analysis of FA composition. The relationship between the composition of the cluster lipids and the geobotanical index of "species activity" is shown, which indicates the active participation of the lipid component in the species distribution in the study area. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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