Abstract
Cell-to-cell communication was investigated in epidermal cells cut from stem internodal tissue of Nicotiana tabacum and Torenia fournieri. Fluorescently labelled peptides and dextrans were microinjected using iontophoresis into the cytoplasm andcortical endomembrane network of these cells. The microinjected endomembrane network was similar in location and structure to the endoplasmic reticulum (ER) as revealed by staining with 3, 3'-dihexyloxacarbocyanine iodide (DiOC(6)). No cell-to-cell movement of dextrans was observed following cytoplasmic injections but injection of dextrans into the endomembrane network resulted in rapid diffusion of the probes to neighbouring cells. It is proposed that the ER acts as a pathway for intercellular communication via the desmotubule through plasmodesmata.
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Claims 6
Claim · model-written summary
The injected endomembrane network resembled the ER in location and structure in Nicotiana tabacum.
- Taxon
- Nicotiana tabacum
Nicotiana tabacumt0
- Outcome
- endomembrane network was similar in location and structure to the endoplasmic reticulum (ER)e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The microinjected endomembrane network was similar in location and structure to the endoplasmic reticulum (ER) as revealed by staining with 3, 3'-dihexyloxacarbocyanine iodide (DiOC(6)).”
t0“of Nicotiana tabacum and Torenia fournieri”
Claim · model-written summary
Cytoplasmic dextran injection produced no cell-to-cell movement in Nicotiana tabacum.
- Taxon
- Nicotiana tabacum
Nicotiana tabacumt0
- Treatment
- cytoplasmic injectionse0
- Outcome
- cell-to-cell movement of dextranse0
- Direction
- Noe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No cell-to-cell movement of dextrans was observed following cytoplasmic injections but injection of dextrans into the endomembrane network resulted in rapid diffusion of the probes to neighbouring cells.”
t0“of Nicotiana tabacum and Torenia fournieri”
Claim · model-written summary
Endomembrane dextran injection caused rapid diffusion to neighbouring cells in Nicotiana tabacum.
- Taxon
- Nicotiana tabacum
Nicotiana tabacumt0
- Treatment
- injection of dextrans into the endomembrane networke0
- Outcome
- diffusion of the probes to neighbouring cellse0
- Direction
- rapide0
- Comparator
- cytoplasmic injectionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No cell-to-cell movement of dextrans was observed following cytoplasmic injections but injection of dextrans into the endomembrane network resulted in rapid diffusion of the probes to neighbouring cells.”
t0“of Nicotiana tabacum and Torenia fournieri”
Claim · model-written summary
The injected endomembrane network resembled the ER in location and structure in Torenia fournieri.
- Taxon
- Torenia fournieri
Torenia fournierit0 - Outcome
- endomembrane network was similar in location and structure to the endoplasmic reticulum (ER)e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The microinjected endomembrane network was similar in location and structure to the endoplasmic reticulum (ER) as revealed by staining with 3, 3'-dihexyloxacarbocyanine iodide (DiOC(6)).”
t0“and Torenia fournieri.”
Claim · model-written summary
Cytoplasmic dextran injection produced no cell-to-cell movement in Torenia fournieri.
- Taxon
- Torenia fournieri
Torenia fournierit0 - Treatment
- cytoplasmic injectionse0
- Outcome
- cell-to-cell movement of dextranse0
- Direction
- Noe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“No cell-to-cell movement of dextrans was observed following cytoplasmic injections but injection of dextrans into the endomembrane network resulted in rapid diffusion of the probes to neighbouring cells.”
t0“and Torenia fournieri.”
Claim · model-written summary
Endomembrane dextran injection caused rapid diffusion to neighbouring cells in Torenia fournieri.
- Taxon
- Torenia fournieri
Torenia fournierit0 - Treatment
- injection of dextrans into the endomembrane networke0
- Outcome
- diffusion of the probes to neighbouring cellse0
- Direction
- rapide0
- Comparator
- cytoplasmic injectionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“No cell-to-cell movement of dextrans was observed following cytoplasmic injections but injection of dextrans into the endomembrane network resulted in rapid diffusion of the probes to neighbouring cells.”
t0“and Torenia fournieri.”
The same questions in other papers
application · molecular: metabolites · Nicotiana tabacum (tobacco)Results agree
19 papers in the same direction as this paper
- positive
- positive
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See all 20 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.