五倍子是我国特产, 角倍产量占一半以上。角倍在发育早期, 死亡率达1/3以上, 严重影响产量, 我们从组织学方面探讨了死亡原因。经过对角倍早瘿的发生发育过程和叶片组织变化规律的研究, 证明虫瘿在发育早期的高死亡率是虫瘿发育不完善, 虫瘿腔内环境受腔外自然环境直接影响的结果。

Young gallnuts are openning bags which developed abnormally because the blade tissues are stimulated by the mouthparts of aphides. In the course of ist development,the abaxial epidermis developed into outer epidermis, the adaxial epidermis developed into inner epidermis;assimilating tissue cells differentiating to meristematic tissue cells. The cells devided constantly and developed into parenchyma cells,and vascular tissue cells. Vascular bundle developed from 1 to 4-5(6) layers forming a net in gallnut wa11.In early stage,one tongued body covered the channel and epidermis hairs in the throat of young gallnut protected the aphis. One month after, a mass of parenchyma cells developed and filled the throat. closing the gallunt tompletely.