In:
Zeitschrift für Naturforschung C, Walter de Gruyter GmbH, Vol. 47, No. 3-4 ( 1992-4-1), p. 280-284
Abstract:
The two brassinosteroids, 22S′,23S′-homobrassinolide and 22S′,23S′-homocastasterone are weak competitors of the binding of [ 3 H]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 comparison to ecdysone. Both substances exert morphological effects similar to those observed with 20-OH-ecdysone. Like moulting hormones 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 S′,23 S′-homobrassinolide.
Type of Medium:
Online Resource
ISSN:
1865-7125
,
0939-5075
DOI:
10.1515/znc-1992-3-418
Language:
English
Publisher:
Walter de Gruyter GmbH
Publication Date:
1992
detail.hit.zdb_id:
2078107-6
SSG:
12
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