Ordinary companion cells in this tissue collect solutes by apoplastic transfers and have plasmodesmata connections almost exclusively with the sieve tubes.
Ordinary companion cells in this tissue collect solutes by apoplastic transfers and have plasmodesmata connections almost exclusively with the sieve tubes. This layer is wedged behind the sclerenchyma, and is the last layer removed when girdling. Movement through it usually utilizes positive hydrostatic pressures and (*) active transports, and the primary type is derived from the apical meristem. Responsible for translocating sugars and food, name this innermost layer of bark, the counterpart of xylem.
Ordinary companion cells in this tissue collect solutes by apoplastic transfers and have plasmodesmata connections almost exclusively with the sieve tubes.
{phloem}