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Chinese Journal of Applied Ecology ›› 2024, Vol. 35 ›› Issue (3): 858-866.doi: 10.13287/j.1001-9332.202403.032

• Reviews • Previous Articles    

Research progress on insect visual electrophysiological techniques

LIU Hang1,2, WEI Chengmei1,2, FENG Taiyang1,2, DONG Wenxia1,2, XIAO Chun1,2*   

  1. 1National Key Laboratory for Conservation and Utilization of Bio-Resources, Kunming 650201, China;
    2College of Plant Protection, Yunnan Agricultural University, Kunming 650201,China
  • Received:2023-07-18 Revised:2024-01-26 Online:2024-03-18 Published:2024-06-18

Abstract: Insect visual electrophysiological techniques are important to study the electrical characteristics of photoreceptor cells and visual neurons in insects, including electroretinography (ERG) and microelectrode intracellular recording (MIR). ERG records the changes of voltage or electric current in the retina of insects in response to different light stimuli, which occurs outside the cell. MIR records the changes in individual photoreceptor cells or visual neurons of an insect exposed to different lights, which occurs inside the cell. Insect visual electrophysiological techniques can explore the mechanism of electrophysiological response of insects’ vision to light and reveal their sensitive light spectra and photoreceptor types. This review introduced the basic structure and the principle of ERG and MIR, and summarized their applications in insect researches in the past 20 years, which would provide references for elucidating the mechanism of light perception in insects and the use of insect phototropism to control pests.

Key words: electroretinography, microelectrode intracellular recording, sensitive light spectra, photoreceptor