Sieve plate pores of Nicotiana.
D001692:Biological Transport; D005615:Freezing; D008854:Microscopy, Electron; D010940:Plant Proteins / Q000378:metabolism*; D010947:Plants, Toxic; D013194:Staining and Labeling; D014026:Nicotiana / Q000166:cytology*
D010940:Plant Proteins