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在根际渗透胁迫和离体叶片水淹条件下处理抗旱性小麦品种（旱选4号）和不抗旱性小麦品种（陇春10号）幼苗,结果表明：叶片中Put累积远大于Spd和Cad的含量．渗透胁迫下，旱选4号Put累积量大于陇春10号；而水淹时，两者Put相差不大，表明两种不同胁迫对不同小麦品种Put的生物合成和降解具有不问的作用．不同程度渗透胁迫的处理结果表明，在轻度胁迫下，多胺含量有较为明显的增加．提示多胺在胁迫防御反应中可能起第二信使或生长调节物质的作用．
The results showed that the accumulation of Put in leaves was much larger than that of Spd and Cad (superscript +) under the conditions of rhizosphere osmotic stress and in vitro leaf flooding, and the drought-resistant wheat variety (Dianxuan 4) and the non-drought-resistant wheat variety (Longchun 10) Content. Under osmotic stress, the accumulation of Putan 4 was greater than that of Longchun 10, while Put did not differ significantly during flooding, indicating that the two different stresses exerted no effect on the biosynthesis and degradation of different wheat cultivars Put. Different degrees of osmotic stress treatment results show that under mild stress, polyamine content increased significantly. Suggesting that polyamines may act as second messengers or growth regulators in the stress defense response.