树脂道

植物分泌组织之一，由分泌细胞彼此分离而形成的一个长形间隙的腔道，在其周围的分泌细胞称为上皮细胞这些上皮细胞产生的分泌物贮存在腔道中.最著名的裂生式分泌道是松柏类的树脂道.存在于植物体内，其分泌物贮在细胞内或细胞间隙中，故属内部分泌结构.在双子叶植物如在小茴香果实的分泌道中贮藏着挥发油，称为油管，美人蕉和心叶椴的分泌道中贮藏着粘液称为粘液道或粘液管.松柏类的树脂道散布于所有器官的维管组织和基本组织中，松柏类木材的固有结构.树脂道可作为鉴别木材和药材的根据.所产生的树脂或油树脂，经蒸馏后可得到松节油和松香.松节油可供药用；松香可作焊接剂和保护琴弦.Plants secrete one of the organizations, each separated from the secretory cells formed a long-cavity-shaped gap in its surrounding secretory cells known as epithelial cells, epithelial cells to produce these secretions stored in the cavity Road.'s Most famous cleavage type secretion Road is a coniferous resin Road. exist in plants, its secretions stored in the cells or cell gap in the structure and therefore an internal secretion. In dicotyledonous plants such as fennel in a small fruit store in the secretion of Road volatile oil, saying that for the pipeline, canna, and Tilia cordata in the storage of the secretion of mucus is called Tao Tao mucus or mucus tube. coniferous resin Road spread to all organs, vascular tissue and the basic organization, the inherent structure of coniferous wood. resin canal can be as the basis for identification of timber and medicinal herbs. arising out of resin or oil resin obtained by the distillation of turpentine and rosin. turpentine for medicinal; rosin flux can be used for and the protection of strings.