In the same section of a leaf the area of vascular bundles has the highest content, the aquiferous tissue has the lowest and the chlorenchyma has intermediate.

 
  • 芦荟属植物在同一个植物体不同的叶之间,以及同一叶不同的位置间有规律的累积蒽醌类物质有重要的生物学意义。
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