Companion Cell

Cells supporting phloem sieve tubes in nutrient transport.

Key Functions:

• Loads sugars into sieve tubes.
• Provides metabolic support to phloem.
• Facilitates phloem transport.

Interacting Systems & Components:

• Phloem Sieve Tube (supported by)
• Phloem Transport (facilitates)
• Plasmodesmata (connected via)
• Stelar Parenchyma (adjacent to)