【摘要】 对 7个具有不同青枯病抗性的桉树品系的叶部和根部的过氧化物酶活性进行了测定 ,对同工酶进行了电泳分析。酶活性测定结果表明 ,桉树各品系叶部的过氧化物酶活性显著高于根部。对青枯病具有不同抗性的 7个桉树品系 ,其叶部的过氧化物酶活性存在着显著差异。对青枯病抗性较弱的 F11和 E13 品系体内的过氧化物酶显著比其它抗性品系体内的酶活性低。同工酶电泳分析表明 ,桉树对青枯病不同抗病性品系之间的同工酶谱带 ,在条带数和各条带的相对活性上表现出差异 ,这与桉树对青枯病的抗性差异有关更多还原

【Abstract】 Activity of peroxidase of leaves and roots of seven Eucalyptus with different resistance against Pseudomonus solanacearum were tested Isoenzyme electrophersis of these clones were analyged Every Eucalyptus clones tested had higher POX activity in leaves than in roots per gram fresh weight POX activity of these clones showed difference Clone F\-\{11\} and E\-\{13\} with reduced resistance showed lower activity of POX than other clones Isoenzyme electrophoresis showed that difference occurred in numbers of isoenzyme bands and related activity of every hand between different Eucalyptus clones These may be relate with the resistance difference of eucalyptus against Pseudomonas solanacearum \ \更多还原