Influence of Triterpene Glycosides of the Holothurian Cucumaria japonica on Root Growth in Cucumis sativus L. Seedlings |
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| Authors: | M M Anisimov V V Logachev A S Sil'chenko S A Avilov |
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| Institution: | (1) Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, pr. 100-letiya Vladivostoku 159, Vladivostok, 690022, Russia |
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| Abstract: | We have shown that triterpene glycosides of the Far Eastern edible holothurian Cucumaria japonica (monosulfated subfractions A
2 and A
4, disulfated subfraction A
6, trisulfated subfraction A
7, and the total fraction of monosulfated glycosides including subfractions A
0, A
1, A
2, and A
4) inhibited growth of the main root of Cucumis sativus seedlings. Cucumariosides were arranged as follows according to their inhibitory activity: subfraction A
2 (ED50 = 53.1 ± 3.6  g/ml) > total fraction of monosulfated glycosides (ED50 = 127.4 ± 5.8 g/ml) > subfraction A
4 (ED50 = 346.5 ± 15.2 g/ml) > subfraction A
6 (ED50 = 375.7 ± 17.2 g/ml) > subfraction A
7 (ED50 = 539.4 ± 11.5 g/ml). The average length of the main root decreased with the increase of glycoside concentrations as a result of a growing amount of seedlings with low germination capacity and the absence of seedlings with high germination capacity. |
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