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Glyceryl Tricaprate in Thylakoids of Stevia rebaudiana and Its Physiological Role

Author:
Bondarev, N.I., Kurilov, D.V., Bondareva, T.A., Nosov, A.M.
Source:
Biology bulletin of the Russian Academy of Sciences 2018 v.45 no.1 pp. 31-34
ISSN:
1062-3590
Subject:
Stevia rebaudiana, gas chromatography-mass spectrometry, solar radiation, thylakoids, transmission electron microscopy, triacylglycerols
Abstract:
The short-day plant stevia (Stevia rebaudiana) was earlier reported to produce electron-dense thylakoids in the chloroplasts under long-day conditions. In the present work, such thylakoids were analyzed by transmission electron microscopy and gas chromatography–mass spectrometry. It was found that they contain glyceryl tricaprate, which belongs to triacylglycerols. A hypothesis is advanced that glyceryl tricaprate acts as a photoprotector for short-day plants against redundant solar radiation.
Agid:
5920616