| 典型草原4种优势种牧草次生代谢物对亚洲小车蝗解毒酶活性的影响 |
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| 引用本文： | 陈德霞,刘旭,罗林华,黄训兵,吕慎金,李广阅,张泽华.典型草原4种优势种牧草次生代谢物对亚洲小车蝗解毒酶活性的影响[J].草业学报,2020,29(1):183-192. |
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| 作者姓名： | 陈德霞 刘旭 罗林华 黄训兵 吕慎金 李广阅 张泽华 |
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| 作者单位： | 1.临沂大学农林科学学院,山东 临沂 276000; 2.中国农业科学院植物保护研究所,植物病虫害生物学国家重点实验室,北京100193; 3.农业部锡林郭勒草原有害生物科学观测实验站,内蒙古 锡林浩特 026000 |
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| 基金项目： | 国家级大学生创新训练项目(201910452021);山东省自然科学基金博士基金(ZR2019BC030);国家自然科学基金(31672485);山东省现代农业产业技术体系牧草创新团队项目(SDAIT-23-10)资助 |
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| 摘 要： | 亚洲小车蝗是我国北方草原重要害虫,具有特定的食物选择性和适应性。为揭示其食物选择的形成机制,测定了典型草原克氏针茅、羊草、糙隐子草和冷蒿4种优势牧草的黄酮、萜类、生物碱、酚类和单宁5种次生代谢物含量,并研究了这些次生代谢物对亚洲小车蝗生长发育及关键解毒酶活性的影响。结果表明,冷蒿、羊草中5种次生代谢物含量最高(P<0.05),克氏针茅中含量最低(P<0.05);与冷蒿、羊草处理相比,克氏针茅处理的亚洲小车蝗存活率、发育速率、生活力最高(P<0.05),氧自由簇(ROS)浓度、解毒酶活性、保护酶活性最低(P<0.05);克氏针茅作为最优食物资源,最利于亚洲小车蝗的生长发育和发生。该研究对于揭示蝗虫-植物特异性关系的形成机理,指导亚洲小车蝗的科学防控具有重要意义。
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| 关 键 词： | 牧草 蝗虫 次生代谢物 生长发育 解毒酶 |
| 收稿时间： | 2019-02-28 |
| 修稿时间： | 2019-04-11 |
Plant secondary metabolites of four rangeland plant species and their effects on the activities of detoxification enzymes of Oedaleus asiaticus in a steppe grassland |
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| CHEN De-xia,LIU Xu,LUO Lin-hua,HUANG Xun-bing,LÜ,Shen-jin,LI Guang-yue,ZHANG Ze-hua.Plant secondary metabolites of four rangeland plant species and their effects on the activities of detoxification enzymes of Oedaleus asiaticus in a steppe grassland[J].Acta Prataculturae Sinica,2020,29(1):183-192. |
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| Authors: | CHEN De-xia LIU Xu LUO Lin-hua HUANG Xun-bing LÜ Shen-jin LI Guang-yue ZHANG Ze-hua |
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| Institution: | 1.College of Agriculture and Forestry Science, Linyi University, Linyi 276000, China; 2.State Key Laboratory of Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; 3.Scientific Observation and Experimental Station of Pests in Xilin Gol Rangeland, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Xilinhot 026000, China |
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| Abstract: | Oedaleus asiaticus Bey-Bienko, a significant grasshopper pest species occurring in north China, has specific food preferences and adaptations. To explore the identity of the plant metabolites responsible for food preference, we measured the content of flavonoids, phenols, alkaloids, terpenoids, and tannins in the grassland species Stipa krylovii, Cleistogenes squarrosa, Leymus chinensis, and Artemisia frigida. The growth and detoxification enzyme activity of O. asiaticus feeding on the above four plant species with their different secondary metabolite profiles were also analyzed. The grass S. krylovii had low levels of secondary metabolites, while the grass L. chinensis and the herb A. frigida possessed the highest contents of the five measured plant secondary metabolites. Grasshoppers feeding on S. krylovii with low secondary metabolite levels, had greater growth and decreased reactive oxygen species(ROS) concentration and digestive enzyme activity then those feeding on L. chinensis and A. frigida. In summary, S. krylovii was the most favorable host plant among the plants tested, and enhanced the performance of the grasshopper species O. asiaticus. This study shows that grasshopper feeding preference is linked to low levels of secondary metabolites, and this information could aid in grasshopper control. |
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| Keywords: | grass grasshopper plant secondary metabolites growth detoxification enzyme |
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