TSitologiya i Genetika 2024, vol. 58, no. 1, 25-33
Cytology and Genetics 2024, vol. 58, no. 1, 21–28, doi: https://www.doi.org/https://doi.org/10.3103/S0095452724010043

Effect of 28-homobrassinolide on fatty acid metabolism during germination of Crambe tatarica under salinity stress

Kretynin S.V., Kolesnikov Ya.S., Kravets V.S., Blume Ya.B.

  1. V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry of the National Academy of Sciences of Ukraine 1, Acad. Kukhara Str., Kyiv, 02660, Ukraine
  2. Institute of Food Biotechnology and Genomics of the National Academy of Sciences of Ukraine, 2a, Osypovskoho Str., Kyiv, 04123, Ukraine

SUMMARY. To study the effect of brassinosteroids and salinity stress on the fatty acid metabolism in the seeds of oil plants, we analyzed the turnover of fatty acids in the seeds of Crambe tatarica under the mentioned conditions. The results of gas-liquid chromatography and mass-spectrometry demonstrated the decrease in the level of palmitic and linoleic fatty acids along with the increase in the level of oleic, eicosenoic, and docosenoic fatty acids in C. tatarica seeds in response to 28-homobrassinolide under salinity stress on some stages of seed germination. The found regularities allowed for the assumption that 28-homobrassinolide promotes the stabilization of fatty acid composition of C. tatarica seeds, disrupted under salinity stress. It may indicate the possibility of modulating the activity or expression of desaturase genes and the enzymes of fatty acid oxidation under the effect of brassinosteroids.

Keywords: Crambe tatarica, seeds, fatty acids, salinity stress, brassinosteroids, 28-homobrassinolide

TSitologiya i Genetika
2024, vol. 58, no. 1, 25-33

Current Issue
Cytology and Genetics
2024, vol. 58, no. 1, 21–28,
doi: https://doi.org/10.3103/S0095452724010043

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