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    李超峰, 刘家莉, 曾鑫年. 柑橘木虱趋光行为及复眼结构分析[J]. 华南农业大学学报, 2019, 40(2): 53-59. doi: 10.7671/j.issn.1001-411X.201805001
    引用本文: 李超峰, 刘家莉, 曾鑫年. 柑橘木虱趋光行为及复眼结构分析[J]. 华南农业大学学报, 2019, 40(2): 53-59. doi: 10.7671/j.issn.1001-411X.201805001
    shu
    LI Chaofeng, LIU Jiali, ZENG Xinnian. Phototactic behavior and compound eye structure of Diaphorina citri[J]. Journal of South China Agricultural University, 2019, 40(2): 53-59. doi: 10.7671/j.issn.1001-411X.201805001
    Citation: LI Chaofeng, LIU Jiali, ZENG Xinnian. Phototactic behavior and compound eye structure of Diaphorina citri[J]. Journal of South China Agricultural University, 2019, 40(2): 53-59. doi: 10.7671/j.issn.1001-411X.201805001
    shu

    柑橘木虱趋光行为及复眼结构分析

    Phototactic behavior and compound eye structure of Diaphorina citri

      摘要
    • 摘要:
      目的  研究柑橘木虱Diaphorina citri Kuwayama对不同光波的趋光性，探索其复眼结构及在光适应和暗适应下的结构变化并阐明其趋光机制，为发展柑橘木虱非化学防控技术奠定基础。
      方法  选用趋光反应装置测定柑橘木虱成虫对不同光波的趋光率，利用扫描电镜技术和组织切片方法对成虫复眼形态和结构进行观察。
      结果  柑橘木虱成虫对不同波长光的趋光率不同，对紫外光(365~370 nm)的趋光率为66.62%~71.38%，蓝光(470~475 nm)为47.17%~50.88%，绿光(520~525 nm)为39.37%~44.26%，黄光(590~592 nm)为28.18%~31.32%，红光(620~630 nm)为14.68%~18.33%。成虫复眼呈半球形，位于头部两侧触角基部，表面光滑无辅助结构，属于典型的并列相眼。小眼由角膜、晶锥、视网膜细胞、基膜和色素细胞组成，位于复眼中心区域的小眼呈六边形，边缘区域的小眼呈近圆形。雌、雄成虫每个复眼的小眼数分别为225~254和238~252个。
      结论  柑橘木虱成虫对紫外光、蓝光和绿光的趋光率显著高于白光，雌雄成虫在复眼结构和形态方面没有明显的差异。研究结果为阐明柑橘木虱趋光行为的机制提供了理论基础。

       

      Abstract:
      Objective  To study phototactic behavior of Diaphorina citri Kuwayama (Asian citrus psyllid)in different light waves, research the microstructure of adult compound eye and its changes under light- and dark-adaptation, and lay a foundation for developing non-chemical prevention and control technology of D. citri.
      Method  Phototactic test instrument was used to test phototactic rate ofD. citri adult towards lights with different wavelengths. The scanning electron microscopy and histological sections were used to observe the structures of compound eyes of D. citri adults.
      Result  The phototactic rates of D. citri adults towards different lights were different. The phototactic rate was the biggest for ultraviolet (365−370 nm), which was 66.62%−71.38%, and followed by blue light (470−475 nm, 47.17%−50.88%), green light (520−525 nm, 39.37%−44.26%), yellow light (590−592 nm, 28.18%−31.32%) and red light (620−630 nm, 14.68%−18.33%). The adult compound eyes were located on the antenna bases at both sides of the head, which were in the shape of a half circle, had a smooth surface without the auxiliary structure, and belonged to the typical parallel eyes. The ommatidium was composed of cornea, crystalline cone, retinula cells, basement membrane and pigment cell. The ommatidium was typical hexagonal in the central region of compound eyes and nearly circular near the periphery of compound eyes. Female and male adults ofD. citri consisted of 225−254 and 238−252 ommatidias per compound eye, respectively.
      Conclusion  D. citri adults are more tending to ultraviolet, blue light and green light than white light. There is no difference in the structure and morphology of compound eyes between female and male adults of D. citri. This research provides a reference for studying the phototactic mechanism.

       

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