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中国生物防治学报 ›› 2015, Vol. 31 ›› Issue (6): 876-881.DOI: 10.16409/j.cnki.2095-039x.2015.06.009

• 研究论文 • 上一篇    下一篇

绿僵菌侵染对东亚飞蝗中肠保护酶和解毒酶的影响

张彦丰1,2,3, 王正浩2,4, 农向群2,3, 曹广春2,3, 赵莉1, 王广君2,3, 张泽华2,3   

  1. 1. 新疆农业大学农学院, 乌鲁木齐 830052;
    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 100081;
    3. 农业部锡林郭勒草原有害生物科学观测实验站, 锡林浩特 026000;
    4. 甘肃农业大学草业学院, 兰州 730070
  • 收稿日期:2015-04-08 出版日期:2015-12-08 发布日期:2015-12-17
  • 通讯作者: 王广君
  • 作者简介:张彦丰(1986-),男,硕士研究生,E-mail:zhangyanfeng860115@163.com
  • 基金资助:
    “十二·五”农村领域国家科技计划(2011AA10A204-1,2012BAD19B0110)

Effect of Metarhizium anisopliae on Protective Enzyme and Detoxification Enzyme in the Midgut of Locusta migratoria manilensis

ZHANG Yanfeng1,2,3, WANG Zhenghao2,4, NONG Xiangqun2,3, CAO Guangchun2,3, ZHAO Li1, WANG Guangjun2,3, ZHANG Zehua2,3   

  1. 1. College of Agronomy, Xinjiang Agricultural University, Urumqi 830052, China;
    2. State Key Laboratory of Plant Diseases and Insect Pests/Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100081, China;
    3. Scientific Observation and Experimental Station of Pests in Xilingol Rangeland, Ministry of Agriculture, Xilinhot 026000, China;
    4. College of Pratacultural Science, Gansu Agricultural University, Lanzhou 730070, China
  • Received:2015-04-08 Online:2015-12-08 Published:2015-12-17

摘要: 为了明确绿僵菌Metarhizium anisopliae对东亚飞蝗的致病机制,探讨绿僵菌对东亚飞蝗中肠保护酶系和解毒酶系的影响。采用分光光度法测定了东亚飞蝗被绿僵菌侵染后,中肠超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)、酚氧化酶(PO)、乙酰胆碱酯酶(AchE)、全酯酶(ESTs)6种酶活力的动态变化。结果表明,中肠保护酶SOD、POD、CAT呈现先上升后下降再上升的趋势。PO则呈现先升高后下降再升高最后下降的趋势;解毒酶AChE呈现先上升后下降再上升的趋势;ESTs则呈现逐渐减弱的趋势,5 d时与对照趋于一致。上述研究结果表明,东亚飞蝗被绿僵菌侵染后,不同的酶活力变化趋势存在明显差异。本研究对于揭示绿僵菌的致病机理及寄主对真菌侵染的免疫机制有一定的指导意义。

关键词: 绿僵菌, 东亚飞蝗, 中肠, 保护酶, 解毒酶

Abstract: To study the effects of Metarhizium anisopliae infection on the activity of protective enzymes (SOD, POD, CAT, PO) and detoxification enzymes (AchE, ESTs) in the midgut of Locusta migratoria manilensis for understanding the mode of action of M. anisopliae, the activity of those enzymes in the midgut of L. migratoria manilensis was monitored at 1, 2, 3, 4, and 5 d after infected by M. anisopliae using spectrophotometry. The results indicated that the activities of SOD, POD, CAT increased firstly, then decreased, and increased again at the last phase, but that of PO showed an increasing-decreasing-increasing-decreasing tendency. AchE showed the same trend like SOD, its activity also increased firstly, then decreased, and increased finally. ESTs changed differently with others overall, its activity decreased gradually and went down to the level of control at the fifth day. These results suggested that the activities of SOD, POD, CAT, PO, AchE and ESTs changed differently after L. migratoria manilensis was infected by M. anisopliae, it will contribute to uncover the mode of action of M. anisopliae in the midgut of hosts and the immune mechanism of hosts against pathogens.

Key words: Metarhizium anisopliae, Locusta migratoria manilensis, midgut, protective enzymes, detoxifying enzymes

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