摘要
为研究新农抗702对水稻的抗性诱导机制,用新农抗702处理水稻叶片,叶片表现较明显的抗纹枯病作用;用不同质量浓度新农抗702在不同时间下诱导稻苗,测定稻苗体内防御酶的变化,结果表明:质量浓度为1.5μg/mL,处理12 h时,过氧化物酶(POD),多酚氧化酶(PPO)、苯丙氨酸解氨酶(PAL)、过氧化氢酶(CAT)的活性分别达到:16.58 U/(g.min)、160 U/(g.s)、234.02 U/(g.min)、37.67 U/(g.min),酶活性较高,而新农抗702对超氧化物歧化酶(SOD)无显著的影响。
In order to study the mechanism of new Ag-antibiotic 702 to the induced resistance,rice leaves induced by new Ag-antibiotic 702,exhibited obvious resistance to Rhizoctonia solani.Then the rice leaves were treated with different concentrations of new Ag-antibiotic 702 and different time and then their defense enzyme activities were measured and analyzed.The results showed that when the concentration of new Ag-antibiotic 702 was 1.5μg/mL,treating-time was 12 h,the enzyme activities were the highest.The activities of peroxidase（POD）,polyphenol oxidase（PPO）,phenylalanine ammonia-lyase（PAL）,catalase（CAT） were 16.58 U/（g·min）,160 U/（g·s）,234.02 U/（g·min） and 37.67 U/（g·min）.However,the activities of SOD treated with new Ag-antibiotic 702 were not significant.
出处
《江西农业大学学报》
CAS
CSCD
北大核心
2012年第2期270-275,共6页
Acta Agriculturae Universitatis Jiangxiensis
基金
国家自然科学基金项目(30960011,31071724)
关键词
新农抗702
水稻叶片
防御酶
new Ag-antibiotic 702
rice leaves
defense enzyme
