| Apoptosis of Spodoptera litura larval hemocytes induced by heavy metal zinc |
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| 引用本文： | XIA Qiang SUN Hongxia HU Xinjun SHU Yinghua GU Dexiang ZHANG Guren. Apoptosis of Spodoptera litura larval hemocytes induced by heavy metal zinc[J]. 科学通报(英文版), 2005, 50(24): 2856-2860. DOI: 10.1007/BF02899656 |
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| 作者姓名： | XIA Qiang SUN Hongxia HU Xinjun SHU Yinghua GU Dexiang ZHANG Guren |
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| 作者单位： | State Key Laboratory for Biological Control ＆ Institute of Entomology,Sun Yat-sen University, Guangzhou 510275, China |
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| 基金项目： | Acknowledgements This work was supported by the Scientific and Technological Plan of Guangdong Province （Grant No. 2005B20501005） and the Natural Science Foundation of Guangdong Province （Grant No. E039254）. |
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| 摘 要： | By adding different amount of zinc into the artificial medium of the insect larvae, the zinc-induced apoptosis of the larvae haemocytes of the herbivorous insect Spodoptera litura Fabricius was investigated with flow cytometer. The results showed that the increase of zinc dose in the artificial feed led to the accumulations of zinc in the larval hemolymph and fat body, and more zinc was accumulated in fat body than in hemolymph. The apoptosis of hemocytes was significantly induced at high zinc concentration （1000 mg·kg^-1） in the insect diet, and the apoptosis rate was 63.63%, which was remarkably higher than that at control and lower concentrations （50--500 mg·kg^-1）. This suggests that the high dose of zinc in the artificial diet of S. litura larvae could induce the apoptosis of the larval hemocytes of S. litura.
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| 关 键 词： | 重金属污染 锌 草地夜蛾 幼虫 血细胞 细胞凋亡 |
| 收稿时间： | 2005-08-26 |
| 修稿时间： | 2005-08-262005-10-21 |
Apoptosis ofSpodoptera litura larval hemocytes induced by heavy metal zinc |
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| Qiang Xia,Hongxia Sun,Xinjun Hu,Yinghua Shu,Dexiang Gu,Guren Zhang. Apoptosis ofSpodoptera litura larval hemocytes induced by heavy metal zinc[J]. Chinese science bulletin, 2005, 50(24): 2856-2860. DOI: 10.1007/BF02899656 |
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| Authors: | Qiang Xia Hongxia Sun Xinjun Hu Yinghua Shu Dexiang Gu Guren Zhang |
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| Affiliation: | (1) State Key Laboratory for Biological Control & Institute of Entomology, Sun Yat-sen University, 510275 Guangzhou, China |
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| Abstract: | By adding different amount of zinc into the artificial medium of the insect larvae, the zinc-induced apoptosis of the larvae haemocytes of the herbivorous insectSpodoptera litura Fabricius was investigated with flow cytometer. The results showed that the increase of zinc dose in the artificial feed led to the accumulations of zinc in the larval hemolymph and fat body, and more zinc was accumulated in fat body than in hemolymph. The apoptosis of hemocytes was significantly induced at high zinc concentration (1000 mg·kg−1) in the insect diet, and the apoptosis rate was 63.63%, which was remarkably higher than that at control and lower concentrations (50-500 mg·kg−1). This suggests that the high dose of zinc in the artificial diet ofS. litura larvae could induce the apoptosis of the larval hemocytes ofS. litura. |
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| Keywords: | heavy metal zinc Spodoptera litura apoptosis. |
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