Paper · 2010 · Planta Medica

High Frequency Plant Regeneration from Leaf Derived Callus of HighΔ9-Tetrahydrocannabinol YieldingCannabis sativaL.

Hemant Lata; Suman Chandra; Ikhlas Khan; et al.

5
claims
12
verbatim quotes
79
citations
3
research areas
—
Not open access

Abstract

An efficient in vitro propagation protocol for rapidly producing Cannabis sativa plantlets from young leaf tissue was developed. Using gas chromatography-flame ionization detection (GC-FID), high THC yielding elite female clone of a drug-type CANNABIS variety (MX) was screened and its vegetatively propagated clones were used for micropropagation. Calli were induced from leaf explant on Murashige and Skoog medium supplemented with different concentrations (0.5, 1.0, 1.5, and 2.0 µM) of indole- 3-acetic acid (IAA), indole- 3- butyric acid (IBA), naphthalene acetic acid (NAA), and 2,4-dichlorophenoxy-acetic acid (2,4-D) in combination with 1.0 µM of thidiazuron (TDZ) for the production of callus. The optimum callus growth and maintenance was in 0.5 µM NAA plus 1.0 µM TDZ. The two-month-old calli were subcultured to MS media containing different concentrations of cytokinins (BAP, KN, TDZ). The rate of shoot induction and proliferation was highest in 0.5 µM TDZ. Of the various auxins (IAA, IBA, and NAA) tested, regenerated shoots rooted best on half strength MS medium (1/2 - MS) supplemented with 2.5 µM IBA. The rooted plantlets were successfully established in soil and grown to maturity with no gross variations in morphology and cannabinoids content at a survival rate of 95 % in the indoor growroom.

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Claims 5

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Callus growth and maintenance of Cannabis sativa leaf explants was optimum in 0.5 µM NAA plus 1.0 µM TDZ.

Taxon
Cannabis sativaCannabis sativae0
Organ / stage
leaf explante1
Treatment
0.5 µM NAA plus 1.0 µM TDZe2
Outcome
callus growth and maintenancee2
Direction
optimume2
Comparator
different concentrations (0.5, 1.0, 1.5, and 2.0 µM)e1

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

Cannabis sativa
Cannabis sativa · TaxonThayne Tuason · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“producing Cannabis sativa plantlets from young leaf tissue”

✓ located verbatim in the source · abstract, characters 55–113 · show in text ↑
e1

“Calli were induced from leaf explant on Murashige and Skoog medium supplemented with different concentrations (0.5, 1.0, 1.5, and 2.0 µM) of indole- 3-acetic acid (IAA)”

✓ located verbatim in the source · abstract, characters 349–517 · show in text ↑
e2

“The optimum callus growth and maintenance was in 0.5 µM NAA plus 1.0 µM TDZ”

✓ located verbatim in the source · abstract, characters 703–778 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The rate of Cannabis sativa shoot induction and proliferation was highest in 0.5 µM TDZ.

Taxon
Cannabis sativaCannabis sativae0
Organ / stage
two-month-old callie3
Treatment
0.5 µM TDZe4
Outcome
rate of shoot induction and proliferatione4
Direction
higheste4
Comparator
different concentrations of cytokinins (BAP, KN, TDZ)e3

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

Cannabis sativa
Cannabis sativa · TaxonThayne Tuason · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“producing Cannabis sativa plantlets from young leaf tissue”

✓ located verbatim in the source · abstract, characters 55–113 · show in text ↑
e3

“The two-month-old calli were subcultured to MS media containing different concentrations of cytokinins (BAP, KN, TDZ)”

✓ located verbatim in the source · abstract, characters 780–897 · show in text ↑
e4

“The rate of shoot induction and proliferation was highest in 0.5 µM TDZ”

✓ located verbatim in the source · abstract, characters 899–970 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Regenerated Cannabis sativa shoots rooted best on half strength MS medium with 2.5 µM IBA among the auxins tested.

Taxon
Cannabis sativaCannabis sativae0
Organ / stage
regenerated shootse5
Treatment
2.5 µM IBAe5
Outcome
rootede5
Direction
beste5
Comparator
various auxins (IAA, IBA, and NAA)e5

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

Cannabis sativa
Cannabis sativa · TaxonThayne Tuason · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“producing Cannabis sativa plantlets from young leaf tissue”

✓ located verbatim in the source · abstract, characters 55–113 · show in text ↑
e5

“Of the various auxins (IAA, IBA, and NAA) tested, regenerated shoots rooted best on half strength MS medium (1/2 - MS) supplemented with 2.5 µM IBA”

✓ located verbatim in the source · abstract, characters 972–1119 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Rooted Cannabis sativa plantlets established in soil had a survival rate of 95 % in the indoor growroom.

Taxon
Cannabis sativaCannabis sativae0
Organ / stage
rooted plantletse6
Outcome
survival ratee6
Value
95 %e6
Setting
indoor growroome6

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

Cannabis sativa
Cannabis sativa · TaxonThayne Tuason · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“producing Cannabis sativa plantlets from young leaf tissue”

✓ located verbatim in the source · abstract, characters 55–113 · show in text ↑
e6

“The rooted plantlets were successfully established in soil and grown to maturity with no gross variations in morphology and cannabinoids content at a survival rate of 95 % in the indoor growroom”

✓ located verbatim in the source · abstract, characters 1121–1315 · show in text ↑
Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Rooted Cannabis sativa plantlets grown to maturity showed no gross variation in morphology or cannabinoids content.

Taxon
Cannabis sativaCannabis sativae0
Outcome
morphology and cannabinoids contente6
Qualifier
no gross variationse6

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

Cannabis sativa
Cannabis sativa · TaxonThayne Tuason · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“producing Cannabis sativa plantlets from young leaf tissue”

✓ located verbatim in the source · abstract, characters 55–113 · show in text ↑
e6

“The rooted plantlets were successfully established in soil and grown to maturity with no gross variations in morphology and cannabinoids content at a survival rate of 95 % in the indoor growroom”

✓ located verbatim in the source · abstract, characters 1121–1315 · show in text ↑

indole-3-butyric acid · growth · Cannabis sativaPositive and negative results

11 papers: 10 positive, 1 negative or no effect

9 papers in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. negative
  3. positive

7 papers more in this group

See all 11 papers →

Thidiazuron · growth · Cannabis sativaPositive and negative results

12 papers: 11 positive, 1 negative or no effect

10 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

8 papers more in this group

See all 12 papers →

1-naphthaleneacetic acid · growth · Cannabis sativaResults agree

10 papers: 10 positive, 0 negative or no effect

9 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

6 papers more in this group

See all 10 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.