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竹腔又称髓腔,是指竹杆节间内部的中空部分。竹腔周围有髓(即竹膜部分)和髓环(竹黄的一部分),再往外即为执行运输功能的维管束。毛竹的维管束纵向平行分布于基本组织之中。就严格意义上讲腔壁仅指髓和髓环部份,为叙述的方便,文内所指的腔壁还包括上下节隔。本文根据近几年来利用放射性示踪原子法对施入毛竹竹腔内标记化合物的吸收和转运的测定结果,探讨毛竹腔壁的渗透性及其应用意义。
Bamboo cavity, also known as medullary cavity, refers to the hollow section of bamboo internals. Around the bamboo cavity, the medulla (ie, part of the bamboo membrane) and the medullary loop (part of the bamboo yellow) are the vascular bundles that perform transportation functions. Phyllostachys vascular bundles vertical distribution parallel to the basic organization. In the strict sense of the cavity wall refers only to the medullary and medullary parts, for the convenience of narration, the text refers to the cavity wall also includes up and down the interval. In this paper, based on the results of radioactive tracer atomic absorption spectrometry (FTIR) in the absorption and transport of labeled compounds in Phyllostachys pubescens bamboo shoots in recent years, the permeability of the bamboo alluvial wall and its application significance were discussed.