Anatomy of Piper colubrinum Link.
DSpice at Indian Institute of Spices Research
View Archive InfoField | Value | |
Creator |
RAVINDRAN, P N
REMASHREE, A B |
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Date |
2006-09-26T05:12:30Z
2006-09-26T05:12:30Z 1998-12 |
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Identifier |
Journal of Spices and Aromatic Crops 7 (2) : 111-123 (1998)
0971-3328 http://hdl.handle.net/123456789/91 |
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Description |
Piper colubrinum exhibits dimorphic branching (orthotropic and plagiotropic shoots) as in many other Piper species. The stem exhibits anomalous secondary growth. The number and size of peripheral and medullary bundles show variations in the two types of shoots. Secondary growth occurs only in the peripheral bundles. In a mature stem (7 mm thickness), the average length and width of xylem vessel is 258 µm and 73.8 µm respectively, in peripheral bundles, whereas in medullary bundles it is 195 µm and 81.5 µm, respectively. Vessels are pitted with simple perforation plates. Tracheids have scalariform and annular thickening. Libriform unseptate fibres are also present. Comparative stem anatomy of P. nigrum and P. colubrinum shows similarities. However, the aerial and underground roots show variations especially in the number of vascular elements. Secondary thickening in root is comparable to that in dicots. The aerial roots undergo transformation in internal structure when they enter soil and grow as underground roots.
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Format |
2996275 bytes
application/pdf |
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Language |
en
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Publisher |
Indian Society for Spices
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Subject |
anatomy
Piper colubrinum P. nigrum |
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Title |
Anatomy of Piper colubrinum Link.
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Type |
Article
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