| 1 | Author
| Klaus-Dieter Spindler, M. Argarethe Spindler-Barth, Andreas Turberg, G. Ünter, Adam | Requires cookie* | | Title
| Action of Brassinosteroids on the Epithelial Cell Line from Chironomus tentans  | | | Abstract
| The two brassinosteroids, 22S',23S'-homobrassinolide and 22S',23S'-homocastasterone are weak com petitors o f the binding o f [3H]ponasterone A to the intracellular ecdysteroid receptor from the epithelial cell line from Chironom us tentans. The relative affinities to the ecdysteroid receptor are 0.001 for both brassinosteroids as compared to 20-OH-ecdysone and 0.1 in com parison to ecdysone. Both substances exert m orphological effects similar to those observed with 20-OH-ecdysone. Like m oulting horm ones both brassinosteroids inhibit chitin synthesis. However, these effects were observed only at rather high concentrations (10-5 to 10"4 m) which were cytotoxic for 22 5,23 S'-homobrassinolide. | | |
Reference
| Z. Naturforsch. 47c, 280—2 (1992); received October 1/D ecem ber 3 1991 | | |
Published
| 1992 | | |
Keywords
| Ecdysteroid Receptor, Acetylcholinesterase, Chitin Synthesis, Brassinosteroids | | |
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| default:Reihe_C/47/ZNC-1992-47c-0280.pdf | | | Identifier
| ZNC-1992-47c-0280 | | | Volume
| 47 | |
2 | Author
| Jürgen Schmidt, Frank Böhme, G. Ünter, Adam | Requires cookie* | | Title
| 24-Epibrassinolide from Gypsophila perfoliata  | | | Abstract
| The scarce 24-epibrassinolide could be identified from seeds of G ypsophila perfoliata L. by GC/MS as the only brassinosteroid present. Furtherm ore, the A7-phyto-sterols ergost-7-en-3ß-ol, spinasterol and 22-dihydro-spinasterol were found as main sterols in the same plant material. | | |
Reference
| Z. Naturforsch. 51c, 897—899 (1996); received July 9/ | | |
Published
| 1996 | | |
Keywords
| Gypsophila perfoliata L, Caryophyllaceae, Seeds, Brassinosteroids, 24-Epibrassinolide | | |
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| default:Reihe_C/51/ZNC-1996-51c-0897_n.pdf | | | Identifier
| ZNC-1996-51c-0897_n | | | Volume
| 51 | |
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