Companion cells Provide the energy required for transporting substances in sieve tubes. Xylem Xylem vessels Transport water and dissolved minerals from the roots, up the plant. Growing points ...
The authors revealed the cellular heterogeneity of companion cells (CCs) and demonstrated that the florigen gene FT is highly expressed in a specific subpopulation of these CCs in Arabidopsis. Through ...
Dissolved sugars and amino acids can be transported both up and down the stem. Companion cells, adjacent to the sieve tubes provide energy required to transport substances in the phloem.
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