吲哚乙酸引导下三唑醇在大豆植株中的传导与积累研究初报

将吲哚乙酸与三唑醇发生酯化反应后生成的吲哚乙酸三唑醇酯 ,在0.5 mmol/L浓度下水培和喷雾处理6~8叶期大豆植株,同时以相同浓度的三唑醇及其与吲哚乙酸的混合物为对照,色谱法测定不同时间植株不同部位吲哚乙酸三唑醇酯和三唑醇的含量。结果表明,与对照相比,吲哚乙酸三唑醇酯在大豆中具有明显的双向传导和向根部积累的特点。喷雾处理后,在12~60 h之间内吸量和根部积累量均出现最大值。

The Preliminary Study of Transportation and Accumulation of Triadimenol in Soybean Seedlings Induced by Indoleacetic Acid

The O-triadimenol-y l indole-3-acetate 1,2,4-triazol-1-yl) butan-2'-yl 2-(1H-indol -3-yl)acetate]was applied on soybean seedlings at concentration of 0.5 mmol/L through solution culture and spraying. The contents of triadimenol and O-triadimenol-yl indole-3-acetate in foliage, stem and root were detected by chromatography in different time. The results showed that the O-triadimenol-yl indole-3-acetate was an ambimobile fungicide and could accumulate in the root of soybean seedlings. But the O-triadimenol-yl indole-3-acetate was easily to degrade into triadimenol in the leaves and stems of soybean seedlings.