Cellular component
Plasmodesma
| Definition | The plasmodesma (plural plasmodesmata) is a plasma membrane-lined channel that crosses the cell wall between two adjacent plant cells and which allows a cytoplasmic exchange between the cells. It provides passage of ions and small molecules, but also of macromolecules such as RNA or proteins. Plasmodesmata are sheathed by a plasma membrane that is simply an extension of the cell membrane of the adjoining cells. Most plasmodesmata have a narrow cylindrical desmotubule at the center that is derived from the ER and appears to be continuous with the ER of both cells. |
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| Synonyms |
Plasmodesmata
PD
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| Category | › Cellular component
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| GO | › plasmodesma [ GO:0009506 ]
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| Graphical | 
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