In the presence of CAT or DPI,the guard cell treated with SA l00llmolth showed increase in DCF fiuorescence only in theregions of chloroplasts located, but the production of H2O2 was inhibitCd in the regions ofplasma membrane (Figure l2,Figure l3).

• 当在CAT和DPI存在情况下SA处理后保卫细胞内H_2O_2产生仅在叶绿体部位，而质膜附近的DCF荧光增强受到了抑制（图12；图13）。