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以具有不同SMV抗性的2个野生大豆和2个栽培大豆为材料,分析其感染大豆花叶病毒株系SMV-N3后苯丙氨酸解氨酶(PAL)、过氧化物酶(POD)、超氧化物歧化酶(SOD)活性的动态变化,比较了野生大豆与栽培大豆抗病机制的差异。结果表明:抗病品种感染病毒后,叶片中各酶活性比对照高,感病品种比对照低;野生大豆酶活性变化比较缓慢,栽培大豆酶活性变化比较迅速,但趋势大体一致;大豆对机械损伤与病毒侵染防御途径部分重叠,但存在较大差异。
Two wild soybean cultivars and two cultivated soybean cultivars with different SMV resistances were used to analyze the phenylalanine ammonia lyase (PAL) and peroxidase (POD) levels of SMV-N3 infected with soybean mosaic virus (SMV-N3) , And the activity of superoxide dismutase (SOD). The differences of the disease resistance mechanism between wild soybean and cultivated soybean were compared. The results showed that: After infected with virus, the activity of each enzyme in leaves was higher than that in control, and the susceptible varieties were lower than those in control. The activities of wild soybean changed more slowly and the activities of cultivated soybean changed more rapidly but the trends were generally the same. Damage and virus infection defense pathways partially overlap, but there is a big difference.