The hypothesis that lea protein played an important role under water or salt - stress conditions was further proved by the fact that increased tolerance was acquired by transgenetic plant when deping xu transformed the hva1 ( it belongs to group 3 lea ) gene to rice 徐德平把大麦的hva1基因( lea第三组)转入水稻中得到了很好的抗旱效果，这进一步证实了其抗脱水胁迫的功能。本论文从lea第三组基因入手，克隆了两个第三组lea基因。
