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Edelmann HG: Ethylene perception generates gravicompetence in gravi-incompetent leaves of rye seedlings. J Exp Bot. 2002 Aug;53(375):1825-8.
The elongating leaves of young rye seedlings do not show a gravitropic response when placed horizontally. However, after treatment with ethylene, either supplied exogenously via ethephon or by application of its precursor 1-aminocyclopropane-1-carboxylic acid (ACC), gravicompetence is seen. The inhibition of ethylene perception by 1-methylcyclopropene (MCP) prevents gravicompetence. Young rye leaves provide a useful model system in which to identify the components of the gravity sensing or response systems, the presence of which govern gravicompetence. |
81(1,1,1,1) |