Paper · 1969 · Canadian Journal of Genetics and Cytology

IN VITRO CULTURE OF WHEAT TISSUES. I. CALLUS FORMATION, ORGAN REDIFFERENTIATION AND SINGLE CELL CULTURE

T. Shimada; T. Sasakuma; K. Tsunewaki

12
claims
22
verbatim quotes
95
citations
2
research areas
—
Not open access

Abstract

Callus induction, organ formation from callus and single callus cell culture have been tried in wheat. Though kinetin showed no effects, supplements of 2,4-D (1~10mg/1) or IAA (50mg/1) to the basal media induced calluses from seedling roots of einkorn, emmer and common wheats, and from stem pieces of common wheat. The best callus growth was obtained when casein hydrolysate (1g/1) or coconut milk (1%) was added to the basal media. Callus growth was also vigorous when 2,4-D (0.5~2.0mg/1) was added. Root formation from callus took place in all kinds of tested media, except those containing no growth factors or supplemented with 2,4-D at high concentrations (1~5mg/1). Shoot formation occurred in six cases and no growth factors were found to be specifically effective on shoot differentiation. Two plants were restored and reached maturity. Calluses of common wheat consisted of eudiploid and aneuploid cells at almost the same frequencies. The great majority of aneuploid cells had 42 ± 3 chromosomes. The restored plants showed normal chromosome constitution. Single callus-cell suspensions were obtained by the liquid culture of seeds in a shaker. A filtrate of the single cell suspension was plated on a solid agar medium, and some colonies were formed. However, plating efficiency was very low and colony growth was slow.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 12

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

2,4-D or IAA induced callus from wheat seedling roots and common wheat stems.

Taxon
common wheatTriticum aestivume0
Organ / stage
seedling rootse0
Treatment
2,4-D (1~10mg/1) or IAA (50mg/1)e0
Outcome
callusese0
Direction
inducede0
Comparator
basal mediae0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“supplements of 2,4-D (1~10mg/1) or IAA (50mg/1) to the basal media induced calluses from seedling roots of einkorn, emmer and common wheats, and from stem pieces of common wheat.”

✓ located verbatim in the source · abstract, characters 137–315 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Kinetin showed no effect on wheat callus induction.

Treatment
kinetine0
Outcome
callusese0
Direction
no effectse0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Though kinetin showed no effects, supplements of 2,4-D (1~10mg/1) or IAA (50mg/1) to the basal media induced calluses from seedling roots of einkorn, emmer and common wheats”

✓ located verbatim in the source · abstract, characters 103–276 · show in text ↑
t0

“WHEAT TISSUES”

✓ located verbatim in the source · title, characters 20–33 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Casein hydrolysate or coconut milk yielded the best wheat callus growth.

Treatment
casein hydrolysate (1g/1) or coconut milk (1%)e0
Outcome
callus growthe0
Direction
beste0
Comparator
basal mediae0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The best callus growth was obtained when casein hydrolysate (1g/1) or coconut milk (1%) was added to the basal media.”

✓ located verbatim in the source · abstract, characters 316–433 · show in text ↑
t0

“WHEAT TISSUES”

✓ located verbatim in the source · title, characters 20–33 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

2,4-D at 0.5~2.0mg/1 supported vigorous wheat callus growth.

Treatment
2,4-D (0.5~2.0mg/1)e0
Outcome
Callus growthe0
Direction
vigorouse0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Callus growth was also vigorous when 2,4-D (0.5~2.0mg/1) was added.”

✓ located verbatim in the source · abstract, characters 434–501 · show in text ↑
t0

“WHEAT TISSUES”

✓ located verbatim in the source · title, characters 20–33 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Wheat callus formed roots in all tested media except those lacking growth factors or containing high 2,4-D.

Outcome
Root formation from calluse0
Qualifier
except those containing no growth factors or supplemented with 2,4-D at high concentrations (1~5mg/1)e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Root formation from callus took place in all kinds of tested media, except those containing no growth factors or supplemented with 2,4-D at high concentrations (1~5mg/1).”

✓ located verbatim in the source · abstract, characters 502–672 · show in text ↑
t0

“WHEAT TISSUES”

✓ located verbatim in the source · title, characters 20–33 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Wheat callus formed shoots in six cases, without a specifically effective growth factor.

Outcome
Shoot formatione0
Value
six casese0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Shoot formation occurred in six cases and no growth factors were found to be specifically effective on shoot differentiation.”

✓ located verbatim in the source · abstract, characters 673–798 · show in text ↑
t0

“WHEAT TISSUES”

✓ located verbatim in the source · title, characters 20–33 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Two regenerated wheat plants reached maturity.

Outcome
plants were restored and reached maturitye0
Value
Two plantse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Two plants were restored and reached maturity.”

✓ located verbatim in the source · abstract, characters 799–845 · show in text ↑
t0

“WHEAT TISSUES”

✓ located verbatim in the source · title, characters 20–33 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Common wheat callus had eudiploid and aneuploid cells at nearly equal frequencies.

Taxon
common wheatTriticum aestivume0
Outcome
eudiploid and aneuploid cellse0
Qualifier
almost the same frequenciese0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Calluses of common wheat consisted of eudiploid and aneuploid cells at almost the same frequencies.”

✓ located verbatim in the source · abstract, characters 846–945 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Most aneuploid wheat callus cells had 42 ± 3 chromosomes.

Outcome
aneuploid cellse0
Value
42 ± 3 chromosomese0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The great majority of aneuploid cells had 42 ± 3 chromosomes.”

✓ located verbatim in the source · abstract, characters 946–1007 · show in text ↑
t0

“WHEAT TISSUES”

✓ located verbatim in the source · title, characters 20–33 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Regenerated wheat plants had normal chromosome constitution.

Outcome
normal chromosome constitutione0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The restored plants showed normal chromosome constitution.”

✓ located verbatim in the source · abstract, characters 1008–1066 · show in text ↑
t0

“WHEAT TISSUES”

✓ located verbatim in the source · title, characters 20–33 · show in text ↑
Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

Liquid culture produced single wheat callus-cell suspensions and plated cells formed some colonies.

Outcome
some colonies were formede0

Not reportedValue

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Single callus-cell suspensions were obtained by the liquid culture of seeds in a shaker. A filtrate of the single cell suspension was plated on a solid agar medium, and some colonies were formed.”

✓ located verbatim in the source · abstract, characters 1067–1262 · show in text ↑
t0

“WHEAT TISSUES”

✓ located verbatim in the source · title, characters 20–33 · show in text ↑
Method / resourceobservedoriginal resultnegativemeasured

Claim · model-written summary

Single wheat callus cell plating efficiency was very low and colony growth slow.

Outcome
plating efficiencye0
Direction
very lowe0

Not reportedValue

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“However, plating efficiency was very low and colony growth was slow.”

✓ located verbatim in the source · abstract, characters 1263–1331 · show in text ↑
t0

“WHEAT TISSUES”

✓ located verbatim in the source · title, characters 20–33 · show in text ↑

2,4-D · growth · Triticum aestivum (wheat)Results differ

51 papers: 35 positive, 16 negative or no effect

34 papers in the same direction as this paper · 14 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

47 papers more in this group

See all 51 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.