Impacts of neonicotinoid insecticides – Sublethal effects of imidacloprid to the larvae of honey bee

• Yun-Ru CHEN

  Department of Entomology/National Taiwan University

• David TSENG

  School of Life Sciences/The Chinese University of Hong Kong

• Chieh TING

  Department of Entomology/National Taiwan University

• Pei-Shou HSU

  District Agricultural Research and Extension Station/Council of Agriculture Executive Yuan

• Tsu-Hsien WU

  District Agricultural Research and Extension Station/Council of Agriculture Executive Yuan

• Siling ZHONG

  School of Life Sciences/The Chinese University of Hong Kong

• En-Cheng YANG

  Department of Entomology/National Taiwan University

抄録

Multiple factors have been associated with the honey bee colony losses in the past 25 years. Accumulating evidence indicates that at sublethal doses, neonicotinoids cause honey bee brain dysfunction and reduce immunocompetence, leading to impaired navigation and olfactory learning and memory, and susceptibility to pathogens. Moreover, such pesticides disturb the reproductive system of queen bees, i.e., the number of eggs and viability of sperm stored in the spermatheca of queen bees, thereby reducing the numbers of adult bees and broods. Pesticide exposure during the larval development stages prolongs larval development and shortens adult longevity. In addition, the density of synaptic units in the calyces of mushroom bodies in the heads decreases; this effect has been further associated with the abnormal olfactory learning ability of adult honey bees exposed to sublethal doses of imidacloprid during the larval stage. Therefore, numerous physiological aspects of honey bees might be altered after exposure to pesticides at sublethal doses, regardless of the developmental stage. We evaluated the impact of the most widely used neonicotinoids—imidacloprid—on different developmental stages of honey bees by profiling the transcriptomes of worker bees with imidacloprid during only the larval stage. Our results confirm that even intaking 1 ppb imidacloprid during only the larval stage would be enough to severely impact a bee’s gene expression. The existence of many differentially expressed genes may reflect or result in honey bee disorder.

収録刊行物

• 日本毒性学会学術年会

  日本毒性学会学術年会 46.1 (0), S7-1-, 2019

  日本毒性学会

詳細情報

• CRID: 1390282763129624448
• NII論文ID: 130007677657
• DOI: 10.14869/toxpt.46.1.0_s7-1
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可