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灯台树(Cornus controversa)导管分子穿孔板的类型

The Type of Vassel Element's Perforation Plate of Cornus controversa

  • 摘要: 对灯台树茎次生木质部离析材料进行观察研究,发现其导管分子穿孔板有梯状穿孔板和单穿孔板2种类型,并且其单穿孔板的穿孔外展.具不同类型穿孔板的导管分子有4种类型,即两端均为梯状穿孔板的导管分子;一端是梯状穿孔板,另一端是单穿孔板的导管分子;一端有2个单穿孔板,另一端是梯状穿孔板的导管分子;两端均为单穿孔板的导管分子.

     

    Abstract: Educing and observing the stem's secondary xylem of Cornus controversa revealed there are two types of perforation plates, scalarform perforation plate and simple perforation plate, and the perforation of the simple perforation plate is extended.There are 4 types of vassel elements with different types of perforation plates: both ends of the vassel element are scalarform perforation plate; one end scalarform type, the other simple type; one end two simple types, the other end scalarform type; both ends simple type.

     

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