Question

Actinostele
The stele present in Equisetum is a:
(A) Haplostele
(C) Plectostele
(B)
(D)
Siphonostele​

Answer 1

Answer

siphonostele

Option D is correct answer

Answer 2

The stele present in Equisetum is a (D) Siphonostele​.

About Stele:

• The core portion of the root or stem that houses the tissues generated from the procambium is known as the stele in vascular plants.
• Vascular tissue, ground tissue, and, if present, a pericycle, which, if present, marks the outermost edge of the stele, are some of these.
• The plant stele is made up of the stem's main circulatory system and any accompanying ground tissues (e.g., pith).
• Only primary tissues that have been differentiated from procambial strands generated from the apical meristem make up the stele.
• Pericycle, xylem, and phloem are the three tissues that make up the majority of the stele.

Types of Steles:

• Protostele
• Siphonostele
• Solenostele
• Dictyostele
• Polycylic Stele
• Eustele

About Siphonostele:

• A protostele or medullated protostele with a core nonvascular pith devoid of leaf gaps is referred to as a siphonostele.
• There are two forms of siphonostele: amphiphloic and pericycle. Phloem, pericycle, and endodermis surround the xylem on each side of the central pith in amphiphloic siphonostele.
• Both Equisetum and Osmunda contain it.

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