论文部分内容阅读
脱落酸(ABA)和茉莉酸(JA)在诱导植物产生抗逆性过程中具有重要作用.以马尾松为试验材料,用GC/MS检测了马尾松毛虫咬食、外源茉莉酸甲酯(MeJA)熏蒸和萜烯混合物熏蒸处理4 h后,马尾松损伤针叶、相邻姊妹针叶(处理同一轮未受损伤枝条)、系统上枝针叶(处理枝上一轮枝条)和系统下枝针叶(处理枝下一轮枝条)中ABA和JA含量的变化.结果表明,虫害4 h后,马尾松损伤针叶、相邻姊妹针叶、系统上枝针叶和系统下枝针叶的ABA和JA含量均明显升高.用10μmol.L-1MeJA熏蒸和10μmol.L-1萜烯混合物熏蒸健康植株后,各部位枝条针叶中ABA和JA含量明显升高.说明ABA和JA是马尾松苗木伤反应信号传导途径中的重要信号分子,参与了马尾松苗木系统抗性的形成过程.
Abscisic acid (ABA) and jasmonic acid (JA) played an important role in inducing the plant to produce stress resistance.Using Masson pine as the experimental material, MeJA fumigation and fumigation of terpene mixture for 4 h, Pinus massoniana injury coniferous, adjacent sister cones (dealing with the same round of undamaged branches), the system on the branch needles (branches on the branch) and the system under the branches The changes of ABA and JA content in leaf (the branch under the branch) were studied.The results showed that the ABA and JA contents of damaged needle, adjacent sister, system and branch of the Pinus massoniana 4 h after pest injury, The contents of ABA and JA in the branches of needles obviously increased after fumigation with 10μmol.L-1MeJA and 10μmol.L-1 terpene mixture, which indicated that ABA and JA were the seedlings of Pinus massoniana seedlings The important signaling molecules in the response signal transduction pathway are involved in the resistance process of the seedling system of Masson pine.