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本文以锦橙为材料观察了汁囊的起源和整个发育过程．结果表明锦橙的汁囊起源于心皮内表皮的单个细胞．汁囊的原始细胞经过数次垂周和平周分裂形成由多细胞构成的球状体；球状体逐渐发育为伸长的柱状结构。在柱状结构的顶端中轴部分分化出一团分生组织细胞．这群分生细胞活跃地分裂和生长，使柱状结构上端膨大、加粗，最后发育成一个带有一条细长柄的囊状结构即汁囊．
In this paper, orange juice as the material to observe the origin of the juice sac and the whole development process. The results indicate that the juice sacs of Jincheng originated from a single cell in the epidermis of the carpel. The primitive cells of the juice sac are divided into several globular bodies composed of multicellular cells by several peritubular and peritubular cycles. The globular body gradually develops into an elongated columnar structure. At the apical part of the columnar structure, a mass of meristematic cells differentiate. The group of meristematic cells actively divide and grow, so that the upper end of the columnar structure enlarges, bold, and finally developed into a slender stem with a cystic structure that juice capsule.