| 取食不同杨树对光肩星天牛幼虫体内羧酸酯酶活性的影响 |
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| 引用本文： | 李会平,黄大庄,纪慧芳,闫海霞,张宏玉. 取食不同杨树对光肩星天牛幼虫体内羧酸酯酶活性的影响[J]. 林业科学, 2007, 43(4): 50-53 |
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| 作者姓名： | 李会平 黄大庄 纪慧芳 闫海霞 张宏玉 |
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| 作者单位： | 1. 河北农业大学林学院,保定071000
2. 河北省承德市园林局,承德067000 |
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| 基金项目： | 河北省博士学科点专项科研基金 |
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| 摘 要： | 取食不同杨树的光肩星天牛幼虫,其羧酸酯酶(CarE)的活力具有明显差异,其变化趋势基本与6种杨树的抗虫性程度呈负相关.动力学研究表明:羧酸酯酶的活力随杨树的抗虫性而异,高抗的毛白杨随着取食时间增长,羧酸酯酶活力逐渐下降.取食后的前10 d,羧酸酯酶活力的变化主要由酶分子变构引起;10 d以后,则是由酶分子数量变化引起,感虫的加杨,随着取食时间的增长,羧酸酯酶的活力逐渐上升,其变化主要是由于羧酸酯酶的数量差异造成的.
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| 关 键 词： | 杨树 光肩星天牛 羧酸酯酶 |
| 文章编号： | 1001-7488(2007)04-0050-04 |
| 修稿时间： | 2005-08-10 |
Effects of Different Poplars on the Activity of the Carboxylesterase in the Larvae of Anoplophora glabripennis |
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| Li Huiping,Huang Dazhuang,Ji Huifang,Yan Haixia,Zhang Hongyu. Effects of Different Poplars on the Activity of the Carboxylesterase in the Larvae of Anoplophora glabripennis[J]. Scientia Silvae Sinicae, 2007, 43(4): 50-53 |
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| Authors: | Li Huiping Huang Dazhuang Ji Huifang Yan Haixia Zhang Hongyu |
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| Affiliation: | 1. Forestry College of Hebei Agricultural University Baoding 071000; 2. Landscape and Gardens Administration of Chengde, Hebei Province Chengde 067000 |
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| Abstract: | It was different significantly that the activity of the carboxylesterase of the Anoplophora glabripennis feeding different poplars, with the same negative correlation trend as the resistant sequence of the six poplars species. The activity of the carboxylesterase in Populus tomentosa, a resistant poplar, decreased gradually as the time of eating increased. But kinetics studies showed that this change is mainly because of the change of CarE molecular before the ten-days of eating. Quantitative differences might gradually replace the role within the later days. To P. canadensis, a sensitive poplar, the activity of the carboxylesterase increased gradually with the increase of eating time, and the quantitative differences play a key role in the change. |
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| Keywords: | poplar Anoplophora glabripennis carboxylesterase |
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