Definition, Meaning & Synonyms

protostele

Noun
/ˈproʊtəˌstɛl/
Definition
A type of vascular tissue arrangement found in some plants, specifically in certain types of algae and primitive land plants, where the xylem and phloem are arranged in a central core surrounded by a layer of parenchyma cells.
Examples
  • The protostele is characterized by its simple organization, lacking the additional layers found in more evolved plant systems.
  • Researchers studied the protostele of certain ferns to understand the evolution of vascular plants.
Meaning
The term ‘protostele’ refers to a primitive form of plant vascular system. It signifies an early evolutionary stage in the development of more complex vascular systems seen in higher plants.
Synonyms
  • None specifically, but related terms include ‘vascular tissue’, ‘stele’.