Effects of SAR-inducible calmodulin or calmodulin-like genes on the crosstalk between SA-ABA signaling.

植物与病原菌相互作用过程中的细胞内钙信号是导致局部和系统获得性抗性(SAR)的早期事件所必需的。高表达钙调蛋白基因(AtCAMox)的植物对致病细菌丁香假单胞菌表现出结构性的抗病能力。番茄DC3000。与野生型植物相比，AtCAMox中的SAR标记基因的表达水平显著升高。这些结果表明，AtCAM是SA依赖的防御信号的正向调节因子。

Intracellular calcium signaling during plant?pathogen interactions are necessary for early events leading to local and systemic acquired resistance (SAR). Plants over-expressed Calmodulin gene (AtCAMox) constitutively exhibited disease resistance against virulent bacterial pathogen, Pseudomonas syringae pv. tomato DC3000. The expression of SAR marker genes was elevated in AtCAMox compared with wild-type plants. These results suggest that AtCAM is a positive regulator of SA-dependent defense signaling.