Abstract:Abstract: Andricus mukaigawae (Hymenoptera: Cynipidae) induces insect galls on the branches of Quercus fabri. The differences of structure between A. mukaigawae galls and non-galled branches were compared by paraffin sectioning and safranine-fast green staining. The results showed that the galls of A. mukaigawai are composed of epidermis, protective layer, trophic layer and insect chamber. The protective layer is divided into two layers. Parenchyma tissue forms its outer layer, and many scattered vascular bundles are distributed in its inner layer, with stone cells distributed in groups to increase the strength of galls. The trophic layer is composed of nutritive cells with large nucleus, providing nutrients for the growth and development of gall wasps. The non-galled branch is composed of pericarp, cortex, secondary phloem, vascular cambium, se-condary xylem and pith. The lignification degrees of galls and non-galled branches are different. The galls have a high lignification degree due to a large number of vascular bundles scattering in the protective layer, while the non-galled branches have a low degree because the lignification parts are mainly concentrated in the secondary xylem. These results provide a histological basis for further studying the chemical substances related to defense responses of A. mukaigawae.
引用本文:
惠 羽, 杨雪梅, 杨筱慧. 向川安瘿蜂虫瘿和无虫瘿枝条组织结构的比较[J]. 生命科学研究, 2022, 26(4): 329-333.
HUI Yu, YANG Xue-mei, YANG Xiao-hui. Comparison of Tissue Structure Between Andricus mukaigawae Galls and Non-galled Branches. Life Science Research, 2022, 26(4): 329-333.