| 苹果感染斑点落叶病菌后几种酶活性的变化 |
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| 引用本文： | 党志国,赵政阳,郭云忠,冯焕德.苹果感染斑点落叶病菌后几种酶活性的变化[J].西北林学院学报,2006,21(6):70-72. |
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| 作者姓名： | 党志国 赵政阳 郭云忠 冯焕德 |
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| 作者单位： | 1. 西北农林科技大学,园艺学院,陕西,杨陵,712100
2. 西北农林科技大学,植保学院,陕西,杨陵,712100 |
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| 基金项目： | 国家“十五”科技攻关项目(2001BA804A282004BA516A10)，陕西省科技攻关项目(2004K09-G2) |
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| 摘 要： | 研究了苹果品种秦冠(高抗)和富士(高感)接种斑点落叶病菌(A lternaria a lternata f.sp.m a li)后叶片内5种酶活性的变化。结果表明,苹果接种斑点落叶病菌后超氧化物岐化酶(SOD)、过氧化氢酶(CAT)和多酚氧化酶(PPO)变化趋势相似,都是先升高后降低;苯丙氨酸解氨酶(PAL)、过氧化物酶(POD)活性变化差别较大,秦冠的POD活性峰值是富士的182%,PAL活性峰值是富士的478%,均达到极显著差异。初步认为PAL和POD在抗斑点落叶病中有很大的作用。
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| 关 键 词： | 苹果 斑点落叶病菌 防御酶 抗病性 |
| 文章编号： | 1001-7461（2006）06-0070-03 |
| 收稿时间： | 2006-03-16 |
| 修稿时间： | 2006-05-08 |
Changes of Several Enzymes-activity in Apple Cultivars Inoculated by Alternaria alternata f. sp. mali |
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| DANG Zhi-guo,ZHAO Zheng-yang,GUO Yun-zhong,FENG Huan-de.Changes of Several Enzymes-activity in Apple Cultivars Inoculated by Alternaria alternata f. sp. mali[J].Journal of Northwest Forestry University,2006,21(6):70-72. |
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| Authors: | DANG Zhi-guo ZHAO Zheng-yang GUO Yun-zhong FENG Huan-de |
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| Abstract: | The activities of 5 enzymes were studied in apple cultivars Qinguan(high resistance) and Fuji(high susceptible) Alternaria blotch disease on leaf by inoculated the Alternaria alternata f.sp.mali.The results showed that the activities of superoxide dismutase(SOD),catalase(CAT),and polyphenoloxidase(PPO) in 2 apple cultivars all were strong at first and then declined;the activities of PAL and peroxidase(POD) were great different,the induced peaks of POD and PAL in resistant cultivar(Qinguan) was 182% and 478% higher than those in susceptible cultivar(Fuji) by inoculation,both reach very significant difference.It is believed that the POD and PAL have great effect on the resistance in Alternaria blotch disease. |
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| Keywords: | apple Alternaria alternata f sp mali defentant enzyme resistance |
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