xylem vs phloem
Definitions
noun
- the woody part of plants: the supporting and water-conducting tissue, consisting primarily of tracheids and vessels
Examples
Xylem and xylem parenchyma can be recognized in the centre of the taproot surrounded by a ring of meristematic tissue with very high intensity.
Xylem vessels, the vascular tubes responsible for water transport throughout the plant, are formed by tracheary elements.
Slide 12: F F F F ก 40x xylem parenchyma epidermis collenchyma chlorenchyma
Definitions
noun
- (botany) tissue that conducts synthesized food substances (e.g., from leaves) to parts where needed; consists primarily of sieve tubes
Examples
Merged bright-field and aniline-blue stained UV fluorescence images showing the correspondence between xylem and phloem-associated callose
In dicot trees the outer layer of the trunk and branches is called bark, a term that refers to all of the tissue from the cambium and phloem to the outer surface.
The secondary phloem in perennial stems consists of sieve tubes with companion cells, storage and crystalliferous parenchyma and sclereids in both species.
