By organism › Green plants › Commelinaceae › Tradescantia virginiana

Observationobservedoriginal resultmeasured

Claim · model-written summary

No decrease in epidermal cell volume was evident during stomatal opening in T. virginiana.

Taxon: T. virginianaTradescantia virginianae0
Organ / stage: epidermal celle0
Outcome: decrease in epidermal cell volumee0
Direction: no evidencee0

Verbatim

e0
“we found no evidence of a decrease in epidermal cell volume in T. virginiana”
✓ located verbatim in the source · abstract, characters 1197–1273

Title

Visualizing physical interactions between guard and epidermal cells during light-induced stomatal opening in 2 angiosperms

Anju Manandhar; Fulton E Rockwell; Nicki Watson; et al. PLANT PHYSIOLOGY 2026. doi:10.1093/plphys/kiaf644

Other claims from this paper (3)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Guard-cell intrusion changed epidermal-cell shape, displaced its volume out of plane and created room for pore formation.

Taxon: T. virginianaTradescantia virginianae1
Organ / stage: epidermal celle0
Outcome: change in epidermal cell shapee0

Not reportedDirection

Verbatim

e0
“guard cell intrusion forces a change in epidermal cell shape, moving epidermal cell volume out of plane and creating space for pore formation to occur”
✓ located verbatim in the source · abstract, characters 1284–1434

e1
“we found no evidence of a decrease in epidermal cell volume in T. virginiana”
✓ located verbatim in the source · abstract, characters 1197–1273

Title

Visualizing physical interactions between guard and epidermal cells during light-induced stomatal opening in 2 angiosperms

Anju Manandhar; Fulton E Rockwell; Nicki Watson; et al. PLANT PHYSIOLOGY 2026. doi:10.1093/plphys/kiaf644

Other claims from this paper (3)

Associationauthor interpretationoriginal resultmeasured

Claim · model-written summary

Autophagy may accompany tetrad formation and final tapetum degradation in T. virginiana.

Taxon: T. virginianaTradescantia virginianae0
Organ / stage: tapetume0
Outcome: formation of tetrads and the final degradation of the tapetume0

Not reportedDirection

Verbatim

e0
“The activation of autophagy may accompany the formation of tetrads of microspores (C. bursa-pastoris), the functioning and degradation of the tapetum (H. sieboldiana), as well as the formation of tetrads and the final degradation of the tapetum (T. virginiana).”
✓ located verbatim in the source · abstract, characters 845–1106

Title

Activation of Autophagy During Microsporogenesis and Tapetogenesis in Angiosperms

O. A. Kravets; S. G. Plokhovska; T. V. Chugunkova; et al. Cytology and Genetics 2025. doi:10.3103/s0095452725030041

Other claims from this paper (5)

Observationobservedoriginal resultmeasured

Claim · model-written summary

In Tradescantia virginiana, stomatal opening results entirely from guard cells moving into and deforming adjacent epidermal cells.

Taxon: Tradescantia virginianaTradescantia virginianae0
Organ / stage: guard cellse1
Outcome: stomatal openinge1

Verbatim

e0
“describe guard cell shape differences between closed and open stomata of Vicia faba and Tradescantia virginiana”
✓ located verbatim in the source · abstract, characters 1036–1147

e1
“stomatal opening in these two angiosperms is entirely the result of guard cells moving into and deforming adjacent epidermal cells”
✓ located verbatim in the source · abstract, characters 1320–1450

Title

Making space for the pore: Structural characterization of stomatal movements when guard cells and epidermal cells interact

MANANDHAR, ANJU Digital Access to Scholarship at Harvard (DASH) (Harvard University) 2022

Other claims from this paper (8)

Observationobservedreview summarybasis n/a

Claim · model-written summary

In Tradescantia virginiana, guard cells are half-moon shaped.

Taxon: Tradescantia virginianaTradescantia virginianae0
Outcome: half-moon typee0

Verbatim

e0
“In Tradescantia virginiana, the shape of guard cells could be called perfectly to half-moon type”
✓ located verbatim in the source · abstract, characters 1749–1845

Title

Misconceptions and Truths of Morphological Characteristics in Plant Stomata

Dae Jae Kim; Joon Sang Lee Journal of Life Science 2017. doi:10.5352/jls.2017.27.2.241

Other claims from this paper (9)

Observation In rice, guard cells are dumbbell-shaped.
Observation In corn, guard cells are dumbbell-shaped.
Observation The dumbbell guard-cell type is found only in a few monocots including Poaceae and Cyperaceae.
Observation Kidney-shaped guard cells occur in every dicot and many monocots.
Observation Dumbbell-shaped guard cells always have subsidiary cells.
Observation Plants with kidney-shaped guard cells rarely have subsidiary cells except Commelina communis.
Observation The two guard-cell types cannot be divided according to monocots versus dicots.
Observation In Sedum sarmentosum, guard cells are long and narrow lips-type.
Observation Kidney-shaped types differ among plants, whereas dumbbell-shaped types are almost constant.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Nuclei translocated, often along long winding paths, in companion cell mother cells before asymmetric mitosis in stomatal ontogeny.

Taxon: Tradescantia virginianaTradescantia virginianae0
Organ / stage: companion cell mother cellse1
Outcome: translocation of nucleie1
Qualifier: often along long, winding pathse1
Setting: In vitroe0

Verbatim

e0
“In vitro studies of the ontogeny of stomata of young leaves of Tradescantia virginiana L.”
✓ located verbatim in the source · abstract, characters 0–89

e1
“translocation of nuclei, often along long, winding paths took place in companion cell mother cells before the onset of asymmetric mitosis”
✓ located verbatim in the source · abstract, characters 106–243

Title

Translocation of nuclei and reorientation of the mitotic apparatus in the ontogeny of stomata in Trudescuntia virginiana L.

Jadwiga A. Tarkowska; Mirosława Ważyńska; Alina A. Jabłonowska Acta Societatis Botanicorum Poloniae 2014. doi:10.5586/asbp.1987.053

Other claims from this paper (1)

Observation The entire mitotic apparatus reoriented during division of guard cell mother cells in stomatal ontogeny.

Observationobservedoriginal resultmeasured

Claim · model-written summary

The entire mitotic apparatus reoriented during division of guard cell mother cells in stomatal ontogeny.

Taxon: Tradescantia virginianaTradescantia virginianae0
Organ / stage: quard cell mother cellse2
Outcome: reorientation of the entire mitotic apparatuse2
Setting: In vitroe0

Verbatim

e0
“In vitro studies of the ontogeny of stomata of young leaves of Tradescantia virginiana L.”
✓ located verbatim in the source · abstract, characters 0–89

e2
“the reorientation of the entire mitotic apparatus took place during division of quard cell mother cells”
✓ located verbatim in the source · abstract, characters 248–351

Title

Translocation of nuclei and reorientation of the mitotic apparatus in the ontogeny of stomata in Trudescuntia virginiana L.

Jadwiga A. Tarkowska; Mirosława Ważyńska; Alina A. Jabłonowska Acta Societatis Botanicorum Poloniae 2014. doi:10.5586/asbp.1987.053

Other claims from this paper (1)

Observation Nuclei translocated, often along long winding paths, in companion cell mother cells before asymmetric mitosis in stomatal ontogeny.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Translocations and inversions generated a significant level of structural heterozygosity in T. virginiana.

Taxon: T. virginianaTradescantia virginianae1
Outcome: structural heterozygositye1

Not reportedDirection

Verbatim

e1
“translocations and/or inversions have occurred during the evolution of the T. virginiana karyotype, generating a significant level of structural heterozygosity”
✓ located verbatim in the source · abstract, characters 256–415

Title

Structural Heterozygosity, Duplication of Telomeric (TTTAGGG)_n Clusters and B Chromosome Architecture in Tradescantia virginiana L.

H. Golczyk Cytogenetic and Genome Research 2011. doi:10.1159/000328915

Other claims from this paper (5)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Small subterminal duplications and/or inversions occur in T. virginiana.

Taxon: T. virginianaTradescantia virginianae2
Outcome: occurrence of small subterminal duplications and/or inversionse2

Not reportedDirection

Verbatim

e2
“the present paper confirms the occurrence of small subterminal duplications and/or inversions in T. virginiana”
✓ located verbatim in the source · abstract, characters 449–559

Title

Structural Heterozygosity, Duplication of Telomeric (TTTAGGG)_n Clusters and B Chromosome Architecture in Tradescantia virginiana L.

H. Golczyk Cytogenetic and Genome Research 2011. doi:10.1159/000328915

Other claims from this paper (5)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Distal chromosome segments of T. virginiana carry duplicated subterminal telomere clusters and heterochromatin.

Taxon: T. virginianaTradescantia virginianae3
Organ / stage: distal chromosome segmentse3
Outcome: duplicated subterminal telomere clusters, heterochromatine3

Not reportedDirection

Verbatim

e3
“many of the distal chromosome segments in T. virginiana possess duplicated subterminal telomere clusters, heterochromatin”
✓ located verbatim in the source · abstract, characters 614–735

Title

Structural Heterozygosity, Duplication of Telomeric (TTTAGGG)_n Clusters and B Chromosome Architecture in Tradescantia virginiana L.

H. Golczyk Cytogenetic and Genome Research 2011. doi:10.1159/000328915

Other claims from this paper (5)

Tradescantia virginiana 237 claims

237 claims