THE BUNDLE SHEATH EXTENSION IN LEAVES OF DICOTYLEDONS
THE BUNDLE SHEATH EXTENSION IN LEAVES OF DICOTYLEDONS
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双子叶植物叶子的束鞘延伸
DOI：
10.1002/j.1537-2197.1952.tb13080.x
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发表时间：
1952
影响因子：
3
通讯作者：
R. Wylie
中科院分区：
文献类型：
--
作者：
R. Wylie
在许多双子叶植物的叶子中，垂直的无色细胞层通常与某些小脉紧密相连。这些在叶片的横切面上是明显的，根据它们与切面的角度，表现为细胞的柱状或片状。虽然在许多物种中缺乏，但在温带和热带地区的草本和木本植物的叶子中发现，并且在北方落叶树的叶子中最常见。在其他阔叶维管植物中，脉的特化或多或少也是相似的。
IN LEAVES of many dicotyledons, vertical layers of colorless cells are often closely associated with certain of the lesser veins. These are obvious in transections of the blade and appear as columns or sheets of cells depending upon their angle to the plane of the section. While lacking in many species they are found in leaves of both herbaceous and woody plants of temperate and tropical regions and are most common in leaves of northern deciduouis trees. More or less similar specializations are often associated with the veins in other broadleaved vascular plants.