| 棉花诱导抗蚜性与次生代谢相关酶活性的关系 |
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| 引用本文： | 李润植,毛雪.棉花诱导抗蚜性与次生代谢相关酶活性的关系[J].山西农业大学学报(自然科学版),1998,18(2):165-168. |
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| 作者姓名： | 李润植 毛雪 |
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| 作者单位： | 山西农业大学农业生物工程研究中心 |
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| 基金项目： | 国家“863”计划青年科学基金,山西省留学回国人员基金 |
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| 摘 要： | 根据棉蚜与棉花的种间互作关系，本文从次生代谢角度，研究了不同类型品种棉苗在棉蚜为害胁迫下，苯丙氨酸解氨酶（ＰＡＬ）和多酚氧化酶（ＰＰＯ）活性、多酚含量的变化及其对抗蚜性表现和后期棉蚜种群数量消长所产生的影响。结果表明，受蚜害诱导后，ＰＡＬ和ＰＰＯ活性及多酚含量均有不同程度的上升。与感蚜品种相比，抗蚜品种上升快，峰值高，防御反应及时有效。这种诱导抗蚜性强弱在不同基因型间存在差异，与蚜害指数高低呈负相关关系。
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| 关 键 词： | 棉花 苯丙氨酸解氨酶（PAL） 多酚氧化酶（PPO） 诱导抗蚜性 |
The Relationships Between Activities of Secondary Metabolism-related Enzymes and Induced Resistance to Aphids in Cotton |
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| Li Runzhi et al..The Relationships Between Activities of Secondary Metabolism-related Enzymes and Induced Resistance to Aphids in Cotton[J].Journal of Shanxi Agricultural University,1998,18(2):165-168. |
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| Authors: | Li Runzhi |
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| Abstract: | According to the interaction between aphids and cotton plants, experiments were carried out to study the relationship between activities of secondary metabolism-related enzymes and induced resistance to aphids (Aphis gossypii Glover) in cotton (Gossypium hirsutum L.) The results showed that under aphid feeding suppression,the activities of PAL and PPO in younger tissue and organ of cotton plants increased distinctly, it was more obvious in the resistant varieties than in the susceptible ones.The contents of phenolic compounds was changed in the same way.The further tests presented that PAL, PPO and phenolic compounds were participated in the defense system of cotton .This kind of induced resistance had an important effect on the population dynamics of aphid in the later period of cotton. life. |
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| Keywords: | Cotton PAL PPO Induced resistance to aphids |
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