Microscopic channels that traverse plant cell walls, connecting the cytoplasm of adjacent cells and allowing direct transport of molecules and communication between cells. These structures are essential for coordinating cellular activities across plant tissues.
From Greek 'plasma' meaning 'something molded' and 'desmos' meaning 'bond' or 'chain.' The term was coined in 1901 by German botanist Eduard Strasburger, who first described these connecting bridges between plant cells.
Plasmodesmata are like secret tunnels between plant cells! While animal cells have to send chemical messages through the bloodstream, plant cells can directly share molecules through these tiny doorways - it's like having a private subway system connecting every room in a building.
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