| 江莹莹, 王 静, 陶 瑜, 马 涛*.团花绢野螟成虫复眼外部形态和内部超微结构观察[J].植物保护,2025,51(3):247-255. |
| 团花绢野螟成虫复眼外部形态和内部超微结构观察 |
| Observation on the external morphology and ultrastructure of the compound eyes in Diaphania glauculalis (Lepidoptera∶Pyraustinae) |
| 投稿时间：2024-06-06 修订日期：2024-08-07 |
| DOI：10.16688/j.zwbh.2024313 |
| 中文关键词: 团花绢野螟 复眼 外部形态 超微结构 重叠像眼 |
| 英文关键词:Diaphania glauculalis compound eye external morphology ultrastructure superposition eye |
| 基金项目:国家自然科学基金(31600516);中央财政林草科技推广项目（2025GDTK-18号） |
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| 中文摘要: |
| 本研究旨在明确团花绢野螟Diaphania glauculalis复眼的外部形态和内部超微结构特征, 为深入研究团花绢野螟趋光行为机制, 研发基于其趋光性的高效环保监测防控技术提供理论基础。利用扫描电子显微镜和透射电子显微镜技术系统观察团花绢野螟复眼的外部形态、内部组织结构和超微结构, 并测定团花绢野螟成虫的复眼面积、小眼面积、小眼直径、小眼间角等参数。团花绢野螟成虫复眼着生于头部两侧, 在背部相离, 倒“八”字排列, 左右两侧复眼呈规则的卵圆形, 属于对称性复眼。雌雄成虫复眼面积分别为(0.640±0.026) mm2和(0.719±0.014) mm2。小眼呈正六边形, 表面着生大量角膜乳突, 其间偶见感觉毛。单个小眼由外到内依次为角膜、晶锥、视网膜细胞、感杆束和基膜, 其中2个初级色素细胞和6个次级色素细胞包裹在晶锥外。晶锥下方有明显的透明区, 表明团花绢野螟的复眼属于重叠像眼。在视网膜细胞中, 围绕在小眼轴周围的视网膜细胞的细胞膜特化而成微绒毛, 彼此之间相互融合形成闭合型感杆束, 感杆之间呈V形排列, 感杆束中间颜色较深且区域排列方式为同心圆式。团花绢野螟复眼属于重叠像眼, 雌雄成虫除在复眼面积上有显著差异外, 其余结构均无显著差异, 视网膜细胞分布模式为“11+1”式。 |
| 英文摘要: |
| This study aims to clarify the external morphology and ultrastructure of the compound eyes of Diaphania glauculalis, providing a foundation for further research on its phototaxis mechanism and the development of efficient, environmentally friendly monitoring and control technologies. Scanning and transmission electron microscopy were used to observe the external morphology, internal structure and ultrastructure of the compound eyes in D. glauculalis. Additionally, key morphometric parameters were measured, including compound eye area, ommatidial area, ommatidial diameter and interommatidial angle. The compound eyes of adult D. glauculalis are positioned bilaterally on the head, separated dorsally, and arranged in an “V” shape. The left and right compound eyes are symmetrical and ovoid. The compound eye area (0.640±0.026) mm2 in females and (0.719±0.014) mm2 in males. Each ommatidium is hexagonal, with numerous corneal nipples on its surface and occasional interfacetal hairs in the gaps. Structurally, an ommatidium comprises, from outer to inner layers: cornea, crystalline cone, retinula cell, rhabdom and basement membrane. The crystalline cone is enclosed by two primary pigment cells and six secondary pigment cells. A clear zone beneath the crystalline cone indicates that the compound eye of D.glauculalis exhibit a superposition-type optical structure. Within the retinula cells, cell membranes around the ommatidial axis form specialized microvilli, which fuse to form rhabdoms. The rhabdoms are arranged in a V-shape, with the central and darker region displaying a concentric ring pattern. The compound eyes of D.glauculalis are classified as superposition eyes. Except for a significant difference in compound eye area, no major structural differences were observed between male and female adults. The distribution pattern of retinula cells follows the “11+1” arrangement. |
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