摘要
为了探讨BTH对小麦白粉病抗性的诱导以及抗性的部分生理机制,分别用0.01,0.05,0.1,0.2,0.4,0.8和1.6 mmol/L苯并噻二唑(BTH)溶液处理小麦幼苗2 d后接种白粉病菌,结果表明,浓度大于0.2 mmol/L的BTH处理均能显著诱导小麦幼苗产生对白粉病的抗性;用0.4 mmol/L BTH处理小麦幼苗后间隔不同时间接种白粉病菌,表明BTH诱导小麦产生对白粉病的抗性持久期在7 d以上;对BTH处理或接种白粉病菌的幼苗几丁质酶和β-1,3-葡聚糖酶活性的测定结果表明,BTH处理可系统性地增强这2种酶的活性且与小麦对白粉病的诱导抗性密切相关。
Benzothiadiazole （BTH） induced lings and physiology mechanism were studied. 0. resistance to Blumeriagraminisf. sp. tritici in wheat seed- 01,0.05,0.1,0.2,0.4,0.8 and 1.6 mmol/L BTH were sprayed on wheat seedling 2 days before inoculation with Blumeriagraminisf. sp. tritici. Results showed that concentration over 0.2 mmol/L BTH could induce resistance against powdery mildew. Expression of resistance in the leaves could last at least 7 days. Chitinase and β-1,3-glucanase activities analysis showed that induced resistance in wheat was accompanied by a systemic increase in both enzymes activities. Two enzymes were related to resistance to powdery mildew in wheat.
出处
《西北农林科技大学学报（自然科学版）》
CSCD
北大核心
2007年第7期137-140,共4页
Journal of Northwest A&F University(Natural Science Edition)
基金
西北农林科技大学青年学术骨干支持计划项目
杨凌农业生物技术育种中心资助项目
