Concept
Version 8
Created by Boundless
Transportation of Photosynthates in the Phloem
Translocation to the phloem
Phloem is comprised of cells called sieve-tube elements. Phloem sap travels through perforations called sieve tube plates. Neighboring companion cells carry out metabolic functions for the sieve-tube elements and provide them with energy. Lateral sieve areas connect the sieve-tube elements to the companion cells.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"OpenStax College, Transport of Water and Solutes in Plants. October 17, 2013."
http://cnx.org/content/m44708/latest/Figure_30_05_06.jpg
OpenStax CNX
CC BY 3.0.