Sciuto S, Chillemi R, Piattelli M, Puglisi G
Boll Soc Ital Biol Sper. 1981 Aug 15;57(15):1590-5.
The distribution of gibberellin- and cytokinin-like activities in twenty-one species of mediterranean algae belonging to Phaeophyta and Rhodophyta has been investigated. Fractions containing each of these activities have been obtained by partitioning aqueous-methanolic extracts of algae against ethyl acetate and butanol successively at different pH values. The stimulation or inhibition of amaranthin synthesis in Amaranthus sp. seedlings have been used a biological tests to assay the cytokinin- or gibberellin-like activities respectively. One or both these two hormonal activities have been detected in all species examined. While cytokinin-like activity has been found with the same frequency in the two phyla, the gibberellin-like activity was less frequent in Phaeophyta.
对属于褐藻门和红藻门的21种地中海藻类中赤霉素和细胞分裂素样活性的分布进行了研究。通过在不同pH值下依次用乙酸乙酯和丁醇对藻类的水甲醇提取物进行分配，获得了含有每种活性的馏分。分别用苋属植物幼苗中苋红素合成的刺激或抑制作为生物测试来测定细胞分裂素样或赤霉素样活性。在所检查的所有物种中都检测到了这两种激素活性中的一种或两种。虽然在两个门中发现细胞分裂素样活性的频率相同，但褐藻门中赤霉素样活性的频率较低。
