Six day old barley seedlings were put under salt stress of NaCl 200 mmol/L and 14 C Arg was spreaded on leaves. The result showed that contents of proline(Pro) and polyamines (PAs) biosynthesized from Larginine(L Arg) increased remarkably.

• 20 0 mmol/L Na Cl处理结合 14 C- Arg叶面饲喂 6日龄大麦幼苗 ,以 L - Arg(精氨酸 )为前体合成的 Pro(脯氨酸 )和 PAs(多胺 )含量显著上升。