protostele
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A protostele is a type of stele, which is the central vascular cylinder of a plant's stem or root. Specifically, a protostele is characterized by a solid core of xylem, with the phloem tissue surrounding it. This arrangement represents one of the simplest and most primitive forms of stele found in vascular plants. The term "stele" itself originates from the Greek word for pillar, reflecting its central structural role within the plant axis.12
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fernVascular tissues…one gap, and some “protostelic” ferns, in which no gaps at all are formed. Complex stelar patterns are known in some species, as in the common bracken fern (Pteridium), which has a polycyclic dictyostele, in which one stele occurs within another stele. Large strands of fibrelike cells running between…
Read More…one gap, and some “protostelic” ferns, in which no gaps at all are formed. Complex stelar patterns are known in some species, as in the common bracken fern (Pteridium), which has a polycyclic dictyostele, in which one stele occurs within another stele. Large strands of fibrelike cells running between…
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lower vascular plantVascular system…type of stele is the protostele, in which the xylem is in the centre of the stem, surrounded by a narrow band of phloem. It in turn is bounded by a pericycle of one or two cell layers and a single cell layer of endodermis. The pericycle is generally the…
Read More…type of stele is the protostele, in which the xylem is in the centre of the stem, surrounded by a narrow band of phloem. It in turn is bounded by a pericycle of one or two cell layers and a single cell layer of endodermis. The pericycle is generally the…
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