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通过对5种甘草根和根状茎的解剖学研究发现,成长根由周皮和维管组织构成,不同种其木栓层的细胞层数,韧皮纤维束的排列、轮数,导管分布频率,射线形态以及初生木质部在根中央的星散分布状况等方面有所不同;成长根状茎由周皮、维管组织和髓构成.与根相比较根状茎具厚的木栓层,长而粗的导管分子和高的导管分布频率.不同种根状茎其韧皮射线的形态、裂隙的有无,髓、韧皮部及导管内所含单宁物质数量等方面也存在一定差异.根和根状茎在结构上都具抗旱特征,但它们抗旱结构的发达程度不尽相同.
Anatomical study of five species of root and rhizome of licorice root found that the root of growth was composed of peritumoral and vascular tissues, the number of layers of cork parenchyma, the arrangement of bast fibers, the number of rounds, the frequency of catheterization , The morphology of the rays and the distribution of primary xylem in the root of the root are different; growth rhizome is composed of periderm, vascular tissue and pulp.Compared with the root rhizome with thick cork layer, long Crude catheter molecules and high frequency of catheter distribution of different rhizome phloem ray morphology, presence or absence of fissure, medullary, phloem and the number of tannins contained in the catheter there are some differences in the number of roots and roots Scaly stems are structurally drought resistant, but their degree of development of drought resistant structures varies.