中图分类号：S435.711 文献标识号：A 文章编号：1001-4942（2025）06-0133-05

AbstractIn order to clarify the effcts of feeding damage caused by Apolygus lucorum on leaf structure and photosynthetic pigment of tea plants，the UV spectrophotometry was used to measure the photosynthetic pigment contentof tea plant leaves with diferent damage degrees.The ultrastructure changes of tea plant leaves were observed by scanning electron microscopy and transmission electron microscopy. The results showed that the damage caused by A. lucorum feeding had a great effct on tea plant leaves.The more severe the damage was，the bigger the holes of leaves were.At the same time，it caused leaf surface shrink，and changed the shape of waxy patern on the leaf surface from flat to wrinkled ridge.The stomatal density increased and the stomatal opening rate decreased after feeding. Meanwhile，the fuggy density of severely damaged leaves was significantly higher than that of the other treatments.Feeding byA. lucorum had a great effect on the ultrastructure of mesophyll cells.The area of mesophyll cells，the space between cells and the intracellular vacuoles increased，and many cels in severely damaged leaves dissolved.With the increase of damage degree，the number of starch granules in mesophyllcels increased at first and then decreased，and the number of osmophilic granules increased sharply in severely damaged leaves.The chlorophyl content and chloroplast number in the leaves showed a trend of first decreasing and then increasing with the degree increase of damage.A. lucorum could cause significant damage to the apparent morphology and ultrastructure of tea plant leaves，seriously affecting the normal growth of tea plants.The results of this research could provide a theoretical basis for further in-depth study of the interaction between A. lucorum and tea plants.

KeywordsApolygus lucorum; Tea plant; Ultrastructure; Photosynthetic pigment

绿盲蝽（Apolyguslucorum）属半翅目盲蝽科，为多食性害虫[1]，对棉花、葡萄、桃、枣、茶树等经济作物上造成重大损失[2-4]。近年来，多地区春茶期间绿盲蝽危害高发，对茶园经济效益影响较大。绿盲蝽的发生具有隐蔽性强、防治难度大、刺吸频率高、危害性强等特点[5]，其发生时间与春茶采摘时间高度重合，且绿盲蝽取食后茶树嫩梢破损严重，几乎丧失可利用价值，已成为全国多个重要产茶省份春茶期间的头号害虫[6-8] O

茶树幼嫩芽叶既是茶树经济收益部位，也是绿盲蝽为害的重点部位，其取食后茶树幼嫩芽叶形成红点或孔洞，症状与茶小绿叶蝉、茶黑刺粉虱、茶蚜等刺吸害虫为害区别明显，且损害更为严重。关于茶园绿盲蝽危害的报道越来越多，但围绕绿盲蝽取食后茶树叶片表面特性及内部超微结构变化的研究较少。本研究以绿盲蝽取食后不同受害程度茶树嫩叶为研究对象，探讨绿盲蝽取食对茶树叶片表观、叶片超微结构及光合色素的影响，以期为进一步深入研究绿盲蝽与茶树互作关系提供理论依据。

材料与方法

1.1 试验材料

供试茶树品种为‘苔选0310’，来自贵州省茶叶研究所贵阳茶树种质资源圃。参考王丽丽等[9]、张辉等[10]、陈嘉静等[1]的取样方法，于2022年4月下旬绿盲蝽为害盛期，依据受害面积占叶片总面积的百分比，田间采集不同受害程度（图1）的芽下第二叶，作为供试材料。

叶片受害程度划分标准参照杨春等[4]的方

法进行，具体如下：0：健康，叶片完整未受害；……