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当前位置: 首页 > 文章 > β-细辛醚对谷蠹成虫体内四种酶活性的影响 昆虫学报 2008,51 (9) 94-99
Position: Home > Articles > Effect of β-asarone on the activities of four enzymes in adults of Rhizopertha dominica (Fabricius) (Coleoptera:Bostrichidae) Acta Entomologica Sinica 2008,51 (9) 94-99

β-细辛醚对谷蠹成虫体内四种酶活性的影响

作  者：
宋旭红;邱艳;黄衍章;华红霞;蔡万伦;杨长举;薛东
单  位：
华中农业大学城市有害生物防治研究所
关键词：
谷蠹;石菖蒲;β-细辛醚;乙酰胆碱酯酶;谷胱甘肽S-转移酶;羧酸酯酶;酯酶同工酶
摘  要：
采用石菖蒲Acorus gramineus根茎提取物β-细辛醚对谷蠹Rhizopertha dominica成虫进行拌粮处理,测定β-细辛醚对谷蠹体内乙酰胆碱酯酶、谷胱甘肽S-转移酶、羧酸酯酶和酯酶同工酶的时间效应和剂量效应。结果表明:β-细辛醚对试虫体内4种酶的酶活性均表现出较强的时间效应。LC50(94.49 mg/kg)剂量的β-细辛醚处理后,谷蠹成虫体内乙酰胆碱酯酶和谷胱甘肽S-转移酶活性随处理时间的延长整体表现为抑制作用,对羧酸酯酶和酯酶同工酶则表现诱导增加作用。低剂量(67.5 mg/kg)β-细辛醚对乙酰胆碱酯酶具有显著的诱导作用,但是随着处理剂量的升高,对乙酰胆碱酯酶的活力多数表现为抑制作用。低剂量(≤100.0 mg/kg)β-细辛醚对谷胱甘肽S-转移酶具有诱导作用,而高剂量(≥133.3 mg/kg)β-细辛醚对谷胱甘肽S-转移酶具有抑制作用。β-细辛醚对羧酸酯酶的活性多数表现为诱导作用,提高β-细辛醚的处理剂量可提高羧酸酯酶的活力。不同剂量的β-细辛醚处理对谷蠹酯酶同工酶均具有显著的诱导作用,但诱导效果与处理剂量关系并不显著。
译  名：
Effect of β-asarone on the activities of four enzymes in adults of Rhizopertha dominica (Fabricius) (Coleoptera:Bostrichidae)
作  者：
SONG Xu-Hong,QIU Yan,HUANG Yan-Zhang,HUA Hong-Xia,CAI Wan-Lun,YANG Chang-Ju,XUE Dong(Institute of Urban Pest Control,Huazhong Agricultural University,Wuhan 430070,China)
关键词：
Rhizopertha dominica;Acorus gramineus;β-asarone;acetylcholinesterase;glutathione-S-transferase;carboxylesterase;esterase isoenzyme
摘  要：
Four important enzymes including acetylcholinesterase(AChE),glutathione-S-transferase(GSTs),carboxylesterase(CarE)and esterase isoenzyme(EST isoenzyme)in Rhizopertha dominica adults were studied after treated with β-asarone extracted from Acorus gramineus roots and shoots.The results indicated that activities of the four enzymes showed strong time-effect.Activities of AChE and GSTs were inhibited by β-asarone at a dosage of 94.49 mg/kg with the exposure time prolonged.While the activities of CarE and EST isoenzymes were induced by β-asarone at the same dosage.The β-asarone at a low dosage(67.5 mg/kg)showed marked induction effect on AChE activity.However,with the dosages of β-asarone increasing,AChE activity was mostly restrained.β-asarone showed induction effect on GST at a low dosage(≤100.0 mg/kg),but showed inhibitory effect at a high dosage(≥133.3 mg/kg).With the dosages of β-asarone increasing,the CarE activity was somewhat promoted.β-asarone induced EST isozyme activity at different dosages,but the induction effect was not significantly correlated with the treated dosages.

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