The plasma membrane portion of the plasmodesma is a continuous extension of the cell membrane or plasmalemma and has a similar phospholipid bilayer structure.
2.
:Plasmodesma says : " Species that have plasmodesmata include members of the Charophyceae, Charales and Coleochaetales ( which are all algae ), as well as all embryophytes, better known as land plants ".
3.
"' Plasmodesmata "'( singular : "'plasmodesma "') are microscopic channels which traverse the cell walls of plant cells and some algal cells, enabling transport and communication between them.
4.
Around the desmotubule and the plasma membrane areas of an electron dense material have been seen, often joined together by spoke-like structures that seem to split the plasmodesma into smaller channels . and actin, which are part of the cell's cytoskeleton.