Botany Department, University College of Wales, Aberystwyth, U.K..
Planta. 1971 Jun;98(2):117-27. doi: 10.1007/BF00385344.
The unrolling of etiolated wheat leaf sections in the dark is stimulated by the application of gibberellic acid (GA3). GA3 is most effective if applied for a short time at the beginning of incubation. Kinetin also stimulated leaf unrolling in the dark. AMO1618 and CCC inhibit red light and kinetin-stimulated unrolling. Gibberellin-like substances extracted from red light-treated leaf tissue are effective in stimulating leaf unrolling.Ethylene production in leaf sections is stimulated by IAA, GA3 and kinetin and inhibited by ABA. A brief exposure to red light decreases the ability of the tissue to produce ethylene. It is concluded that ethylene plays no important role in the control of leaf unrolling by red light or by the application of hormones.
黑暗中用赤霉素(GA3)处理可诱导黄化小麦叶片展开,在黑暗中,用激动素处理也能诱导叶片展开。如果在暗培养开始时短时间施加 GA3,其效果最佳。激动素也能刺激叶片在黑暗中展开。AMO1618 和 CCC 抑制红光和激动素诱导的叶片展开。从红光处理的叶片组织中提取的赤霉素样物质可有效刺激叶片展开。IAA、GA3 和激动素能刺激叶片切段产生乙烯,ABA 则抑制其产生。短暂暴露于红光下会降低组织产生乙烯的能力。因此,结论认为乙烯在红光或激素处理控制叶片展开过程中不起重要作用。