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stele

Line breaks: stele
Pronunciation: /stiːl
 
, ˈstiːli
 
/

Definition of stele in English:

noun

1 Botany The central core of the stem and root of a vascular plant, consisting of the vascular tissue (xylem and phloem) and associated supporting tissue. Also called vascular cylinder.
Example sentences
  • All roots possessed a central stele of vascular tissues, surrounded by a few layers of cortical cells, and an outer layer of epidermis.
  • Cross-sections of the asparagus stem revealed a primary rind and the stele, the vascular tissue had a scattered bundle system, with closed collateral bundles.
  • Once inside the symplast, radial transport across the root to the central stele and, subsequently, unloading into the xylem are necessary for translocation to the shoot.
2 Archaeology another term for stela.
Example sentences
  • A few years ago one of the Taewongun's steles could still be seen on the grounds of the recently restored Kyongbok Palace in Seoul.
  • What is uncertain, and is a critical caveat to the entire reconstruction, is that the top edge of the fragment is a portion of the top edge of the stele to which it belonged, as is maintained.
  • The decree ordering the assessment is a forceful document, and it and the assessments were inscribed on an imposing stele, set up on the Acropolis.

Origin

early 19th century: from Greek stēlē 'standing block'.

Derivatives

stelar

1
adjective
sense 1.
Example sentences
  • After 2-3 weeks post-treatment, hypodermal, exodermal and stelar lignifications were far more extreme in the more basal regions of sulfide-treated roots than in the controls.
  • If cytosolic Na + in stelar cells is higher than quoted above and if xylem Na + is at the lower end of the above range, then the energy difference could favour the passive leakage of Na + into the xylem.
  • Outwardly-rectifying K + dependent currents displaying sigmoidal activation kinetics have been identified in stelar cells from Arabidopsis, maize and barley roots.

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