浙江农业学报 ›› 2023, Vol. 35 ›› Issue (3): 575-581.DOI: 10.3969/j.issn.1004-1524.2023.03.10

• 动物科学 • 上一篇    下一篇

亚致死剂量呋虫胺对意大利蜜蜂采集蜂免疫解毒相关基因表达和酶活性的影响

张宇昊1(), 马卫华2, 刘晋佳1, 马秀梅1, 姜玉锁1,*()   

  1. 1.山西农业大学 动物科学学院,山西 太谷 030801
    2.山西农业大学 园艺学院,山西 太谷 030801
  • 收稿日期:2021-09-06 出版日期:2023-03-25 发布日期:2023-04-07
  • 通讯作者: *姜玉锁,E-mail:jiangys-001@163.com
  • 作者简介:张宇昊(1996—),男,浙江义乌人,硕士研究生,研究方向为动物遗传育种与繁殖。E-mail:zhangyuhao1005@126.com
  • 基金资助:
    现代农业蜂产业技术体系建设专项资金(CARS-45-KXJ5)

Effects of sublethal doses of dinotefuran on genes expression and enzymes activities related to immune and detoxification in foragers of Apis mellifera ligustica

ZHANG Yuhao1(), MA Weihua2, LIU Jinjia1, MA Xiumei1, JIANG Yusuo1,*()   

  1. 1. College of Animal Sciences, Shanxi Agricultural University, Taigu 030801, Shanxi, China
    2. College of Horticulture, Shanxi Agricultural University, Taigu 030801, Shanxi, China
  • Received:2021-09-06 Online:2023-03-25 Published:2023-04-07

摘要:

为确定呋虫胺对意大利蜜蜂Apis mellifera ligustica采集蜂的亚致死浓度,探究亚致死剂量呋虫胺对意大利蜜蜂采集蜂免疫解毒相关基因的表达及酶活性的影响,本研究采用饲喂法测定呋虫胺对意大利蜜蜂采集蜂的毒力曲线。应用qRT-PCR技术研究LC20和LC50浓度呋虫胺对蜜蜂Abaecin,Apidaecins,Defensin-1,Hymenoptaecin,AChE-2,PPO,GSTCyp450 mRNA相对表达量的影响。测定蜜蜂体内多酚氧化酶、乙酰胆碱酯酶、超氧化物歧化酶、谷胱甘肽S-转移酶和过氧化氢酶活性的变化。结果表明,呋虫胺胁迫意大利蜜蜂采集蜂的LC20和LC50为0.458 mg·L-1和0.988 mg·L-1。LC20组中PPOApidaecinsDefensin-1和Hymenoptaecin基因表达量与对照组相比有显著(P<0.05)上调趋势,LC50组中AChE-2、PPOGSTCyp450、ApidaecinsDefensin-1表达量有显著上调趋势,AbaecinHymenoptaecin基因表达量有显著下调趋势,且LC50组中的abaecinHymenoptaecin表达量均显著低于LC20组,AChE-2、PPOGSTCyp450和Apidaecins基因表达量显著高于LC20组。LC20组与对照组相比,AChE、CAT和SOD活性均显著下降;LC50组与对照组相比,AChE、PPO、CAT和SOD活性均显著下降。呋虫胺抑制AbaecinHymenoptaecin基因表达,诱导ApidaecinsDefensin-1、AChE-2、PPOGSTCyp450基因的表达,影响正常的免疫系统。AChE、PPO、CAT和SOD活性的下降预示着呋虫胺对蜜蜂解毒系统的损害,本试验为探究呋虫胺对意大利蜜蜂生理和代谢的影响提供理论依据。

关键词: 意大利蜜蜂, 呋虫胺, 亚致死效应, 免疫解毒, 酶活性

Abstract:

To determine sublethal doses of dinotefuran to Apis mellifera ligustica and explore the effects of sublethal doses of dinotefuran on the expression of immune detoxification genes and enzyme activities on Apis mellifera ligustica, in this study, the feeding trials was used to determine the virulence curve of dinotefuran to Apis mellifera ligustica. The effects of LC20 and LC50 dinotefuran on the relative expressions of Abaecin, Apidaecins, Defensin-1, Hymenoptaecin, AChE-2, PPO, GST and Cyp450 mRNA were investigated by qRT-PCR. Determination of changes in the activities of PPO, AChE, SOD, GST, CAT in Apis mellifera ligustica. The LC20 and LC50 of dinotefuran on Apis mellifera ligustica determined by feeding trials were 0.458 mg·L-1 and 0.988 mg·L-1. Compared with the control group, the expression levels of PPO, Apidaecins, Defensin-1, Hymenoptaecin genes were significantly (P<0.05) up-regulated in the LC20 group. Apidaecins, In LC50 group, the expression of AChE-2, PPO, GST, Cyp450, Apidaecins, Defensin-1 showed a significant up-regulation trend, and the expression of Hymenoptaecin and Abaecin showed a significant down-regulation trend. In additon, the expression levels of Abaecin and Hymenoptaecin in the LC50 group were significantly lower than those in the LC20 group. The expression levels of AChE-2, PPO, GST, Cyp450, Apidaecins in the LC50 group were significantly higher than those in the LC20 group. Compared with the control group, the activities of AChE, CAT and SOD of LC20 group decreased significantly. Compared with the control group, the activities of AChE, PPO, CAT and SOD of LC50 group decreased significantly. In conclusion, dinotefuran inhibits gene expression of Abaecin and Hymenoptaecin, and has an inducing effect on Apidaecins, Defensin-1, AChE-2, PPO, GST, Cyp450 affects the normal immune system of Apis mellifera ligustica. The decline of AChE, PPO, CAT and SOD enzyme activities indicates the damage of dinotefuran to the detoxification system of Apis mellifera ligustica. Our stduy provides a further basis for further research on the effects of sublethal dose dinotefuran on the metabolism and physiology of Apis mellifera ligustica.

Key words: Apis mellifera ligustica, dinotefuran, sublethal effect, immune detoxification, enzyme activity

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