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Planta. 1977 Jan;135(2):143-7. doi: 10.1007/BF00387163.
The biological activities of GA40, GA43, GA46, GA47, GA51 and GA4 20,4-lactone were tested over a wide range of concentrations in six plant bioassays. GA4 20,4-lactone showed the highest activity. Of the two 2α-hydroxylated compounds GA47 showed moderately high activity, and GA40 was slightly active. The 2β-hydroxylated compunds GA43, GA46 and GA51 were virtually inactive.
GA40、GA43、GA46、GA47、GA51 和 GA4 20,4-内酯的生物活性在六种植物生物测定中进行了广泛浓度测试。GA4 20,4-内酯的活性最高。在两种 2α-羟基化化合物中,GA47 表现出较高的活性,而 GA40 则表现出轻微的活性。2β-羟基化化合物 GA43、GA46 和 GA51 几乎没有活性。