Clusiaceae species are known globally for the economic importance of their secretory structures; however, reports of colleters in the family are scarce. In the present study, we characterised the leaf colleters in Clusia burchellii by investigating the morphology and anatomy of the glands, the histolocation of the major chemical substances present in the secretory cells and the cellular aspects associated with the synthesis and release of the secretion. Leaf samples at different developmental stages were collected and examined under light and electron microscopy. Histochemical tests were performed. Colleters of the standard type occur at the base of the petiole, are sessile or short pedunculated, and originate from protoderm and ground meristem cells. During leaf development, young, active, and whitish colleters become brownish and inactive at late developmental stages. Alkaloids and phenolic compounds were common in central axis cells. A mixture of hydrophilic and lipophilic substances histochemically detected, which can prevent water loss under hot tropical climates, were also found. Secretion accumulation was observed in the periplasmic region of the secretory cells and in the subcuticular spaces. Cuticular pores were present especially in the apical portion of the colleters. Our data revealed some cellular aspects of the secretion mechanisms in the leaf colleters of C. burchellii.

伞形科物种以其分泌结构的经济重要性而享誉全球。但是，关于家庭中的同事的报道很少。在当前的研究中，我们表征了Clusia burchellii的叶片col通过研究腺体的形态和解剖结构，存在于分泌细胞中的主要化学物质的组织定位以及与分泌物的合成和释放相关的细胞方面。收集处于不同发育阶段的叶片样品，并在光学和电子显微镜下检查。进行了组织化学测试。标准类型的筒夹出现在叶柄的底部，无柄或有短花梗，起源于原皮和地面分生组织细胞。在叶片发育过程中，幼小，活跃和发白的筒子在发育后期会变成褐色且不活跃。生物碱和酚类化合物在中轴细胞中很常见。组织化学检测到的亲水性和亲脂性物质的混合物，可以防止热带炎热气候下的水分流失，也被发现。在分泌细胞的周质区域和表皮下空间中观察到分泌积累。表皮孔特别是在筒夹的顶端部分存在。我们的数据揭示了一些叶夹层中的分泌机制的细胞方面C. burchellii。