Eustele and atactostele are types of siphonostele arrangement in plants. A stele is the arrangement of vascular bundles. In siphonosteles the conducting tissues are arranged in a hollow cylinder with a central parenchymatous pith. Let us look at their differences:
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It is a type of siphonostele in which the vascular bundles are arranged in a ring. |
It is a variation of eustele where the vascular bundles are scattered. |
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Found in stems of dicots and roots of monocots. |
Characteristics of monocot stems. |
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Pith is present. |
Pith is absent. |
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The layer of tissues between the vasculature and outer epidermis is the cortex. |
The region between the vascular bundles is the ground meristem. |
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The xylem is located towards the inside, and the phloem is located towards the outside. |
The xylem and phloem are scattered throughout the ground tissue. |
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Sunflower, Buttercup, etc |
Corn |
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FAQs
What is the meaning of Atactostele?
Atactostele is a variation of eustele, occurring in monocots where the vascular bundles are present in a scattered manner.
What is eustele and its examples?
Eustele is a type of siphonostele arrangement where the vascular bundles are arranged in a ring. Example: Sunflower and Buttercup.
What is an Amphivasal vascular bundle?
It is a type of vascular bundle where the phloem is surrounded by the xylem.
