Paper · 2021 · Asian Journal of Agriculture and Biology

Optimization for in vitro regeneration in four local cultivars of indica rice

Md Rahman; Md Monirul Islam; M Mondal; et al.

10
claims
19
verbatim quotes
2
citations
2
research areas
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Open access · cc-by

Abstract

The current investigation was planned and designed for optimizing the concentration of plant growth regulators to generate an efficient in vitro callogenesis and plantlet regeneration in four local cultivars of Indica rice. Effects of six different concentrations of 2,4-D (2,4-dichlorophenoxyacetic acid), kinetin and carbon source, amino acids, and solidifying agents on callus induction were observed using mature seeds as starting material. Two different concentrations of NAA (1-naphthaleneacetic acid) + kinetin and IBA (Indole-3-butyric acid) were used for shoot regeneration and root induction, respectively. The highest frequency (100%) of callus was recorded on the medium containing 2mg/l 2,4-D which was followed by 3 mg/l 2,4-D + 10 mg/l kinetin (95.51%) at the dark condition in cultivar Sadamota. Moreover, MS (Murashige and Skoog) medium supplemented with 2 mg/l 2,4-D, L-proline and sucrose (as carbon source) increased the callus induction frequency. The highest percentages of callus induction were found when both the gelrite and agar were used as solidifying agents. The maximum shoot regeneration (66.44%) and shoot number (4.49) were obtained at 0.50 mg/l NAA + 10 mg/l kinetin in the cultivar, Sadamota. Moreover, the highest root induction and root number were recorded at 0.50 mg/l IBA in Sadamota. Overall, the highest optimum callus induction, shoot regeneration and root formation were obtained at 2 mg/l 2,4-D, 0.50 NAA + 10 mg/l kinetin and 0.50 mg/l IBA, respectively. Sadamota exhibited the best plantlet regeneration followed by Kachamota whereas the lowest was displayed by Dudkalam. This regenerated protocol could be utilized for gene transfer in rice for the development of stress-tolerant and high yielding lines in future.

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Claims 10

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

2 mg/l 2,4-D gave the highest callus frequency, 100%.

Treatment
2mg/l 2,4-De0
Outcome
calluse0
Direction
higheste0
Value
100%e0

Not reportedComparator

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

Oryza sativa Indica Group
Oryza sativa Indica Group · TaxonNo machine-readable author provided. Ranveig assumed (based on copyright claims). · Public domain · Wikimedia Commons ↗

Verbatim

t0

“cultivars of indica rice”

✓ located verbatim in the source · title, characters 53–77 · show in text ↑
e0

“The highest frequency (100%) of callus was recorded on the medium containing 2mg/l 2,4-D which was followed by 3 mg/l 2,4-D + 10 mg/l kinetin (95.51%) at the dark condition in cultivar Sadamota”

✓ located verbatim in the source · abstract, characters 617–810 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

3 mg/l 2,4-D with 10 mg/l kinetin gave 95.51% callus frequency in cultivar Sadamota, ranked after 2 mg/l 2,4-D.

Material
Sadamotae0
Treatment
3 mg/l 2,4-D + 10 mg/l kinetine0
Outcome
calluse0
Direction
followed bye0
Value
95.51%e0
Comparator
2mg/l 2,4-De0

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

Oryza sativa Indica Group
Oryza sativa Indica Group · TaxonNo machine-readable author provided. Ranveig assumed (based on copyright claims). · Public domain · Wikimedia Commons ↗

Verbatim

t0

“cultivars of indica rice”

✓ located verbatim in the source · title, characters 53–77 · show in text ↑
e0

“The highest frequency (100%) of callus was recorded on the medium containing 2mg/l 2,4-D which was followed by 3 mg/l 2,4-D + 10 mg/l kinetin (95.51%) at the dark condition in cultivar Sadamota”

✓ located verbatim in the source · abstract, characters 617–810 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

MS medium with 2 mg/l 2,4-D, L-proline and sucrose increased callus induction frequency.

Treatment
MS (Murashige and Skoog) medium supplemented with 2 mg/l 2,4-D, L-proline and sucrosee1
Outcome
callus induction frequencye1
Direction
increasede1

Not reportedComparator

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

Oryza sativa Indica Group
Oryza sativa Indica Group · TaxonNo machine-readable author provided. Ranveig assumed (based on copyright claims). · Public domain · Wikimedia Commons ↗

Verbatim

t0

“cultivars of indica rice”

✓ located verbatim in the source · title, characters 53–77 · show in text ↑
e1

“MS (Murashige and Skoog) medium supplemented with 2 mg/l 2,4-D, L-proline and sucrose (as carbon source) increased the callus induction frequency”

✓ located verbatim in the source · abstract, characters 822–967 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Gelrite and agar as solidifying agents gave the highest percentages of callus induction.

Treatment
gelrite and agare2
Outcome
percentages of callus inductione2
Direction
higheste2

Not reportedComparator

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

Oryza sativa Indica Group
Oryza sativa Indica Group · TaxonNo machine-readable author provided. Ranveig assumed (based on copyright claims). · Public domain · Wikimedia Commons ↗

Verbatim

t0

“cultivars of indica rice”

✓ located verbatim in the source · title, characters 53–77 · show in text ↑
e2

“The highest percentages of callus induction were found when both the gelrite and agar were used as solidifying agents”

✓ located verbatim in the source · abstract, characters 969–1086 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

0.50 mg/l NAA with 10 mg/l kinetin in cultivar Sadamota gave the maximum shoot regeneration, 66.44%.

Material
Sadamotae3
Treatment
0.50 mg/l NAA + 10 mg/l kinetine3
Outcome
shoot regeneratione3
Direction
maximume3
Value
66.44%e3

Not reportedComparator

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

Oryza sativa Indica Group
Oryza sativa Indica Group · TaxonNo machine-readable author provided. Ranveig assumed (based on copyright claims). · Public domain · Wikimedia Commons ↗

Verbatim

t0

“cultivars of indica rice”

✓ located verbatim in the source · title, characters 53–77 · show in text ↑
e3

“The maximum shoot regeneration (66.44%) and shoot number (4.49) were obtained at 0.50 mg/l NAA + 10 mg/l kinetin in the cultivar, Sadamota”

✓ located verbatim in the source · abstract, characters 1088–1226 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

0.50 mg/l NAA with 10 mg/l kinetin in cultivar Sadamota gave the maximum shoot number, 4.49.

Material
Sadamotae3
Treatment
0.50 mg/l NAA + 10 mg/l kinetine3
Outcome
shoot numbere3
Direction
maximume3
Value
4.49e3

Not reportedComparator

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

Oryza sativa Indica Group
Oryza sativa Indica Group · TaxonNo machine-readable author provided. Ranveig assumed (based on copyright claims). · Public domain · Wikimedia Commons ↗

Verbatim

t0

“cultivars of indica rice”

✓ located verbatim in the source · title, characters 53–77 · show in text ↑
e3

“The maximum shoot regeneration (66.44%) and shoot number (4.49) were obtained at 0.50 mg/l NAA + 10 mg/l kinetin in the cultivar, Sadamota”

✓ located verbatim in the source · abstract, characters 1088–1226 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

0.50 mg/l IBA in cultivar Sadamota gave the highest root induction and root number.

Material
Sadamotae4
Treatment
0.50 mg/l IBAe4
Outcome
root induction and root numbere4
Direction
higheste4

Not reportedComparator

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

Oryza sativa Indica Group
Oryza sativa Indica Group · TaxonNo machine-readable author provided. Ranveig assumed (based on copyright claims). · Public domain · Wikimedia Commons ↗

Verbatim

t0

“cultivars of indica rice”

✓ located verbatim in the source · title, characters 53–77 · show in text ↑
e4

“the highest root induction and root number were recorded at 0.50 mg/l IBA in Sadamota”

✓ located verbatim in the source · abstract, characters 1238–1323 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Cultivar Sadamota showed the best plantlet regeneration, followed by Kachamota.

Material
Sadamotae5
Outcome
plantlet regeneratione5
Direction
beste5

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

Oryza sativa Indica Group
Oryza sativa Indica Group · TaxonNo machine-readable author provided. Ranveig assumed (based on copyright claims). · Public domain · Wikimedia Commons ↗

Verbatim

t0

“cultivars of indica rice”

✓ located verbatim in the source · title, characters 53–77 · show in text ↑
e5

“Sadamota exhibited the best plantlet regeneration followed by Kachamota whereas the lowest was displayed by Dudkalam”

✓ located verbatim in the source · abstract, characters 1501–1617 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Cultivar Dudkalam showed the lowest plantlet regeneration.

Material
Dudkalame5
Outcome
plantlet regeneratione5
Direction
loweste5

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

Oryza sativa Indica Group
Oryza sativa Indica Group · TaxonNo machine-readable author provided. Ranveig assumed (based on copyright claims). · Public domain · Wikimedia Commons ↗

Verbatim

t0

“cultivars of indica rice”

✓ located verbatim in the source · title, characters 53–77 · show in text ↑
e5

“Sadamota exhibited the best plantlet regeneration followed by Kachamota whereas the lowest was displayed by Dudkalam”

✓ located verbatim in the source · abstract, characters 1501–1617 · show in text ↑
Recommendationhypothesisoriginal resultbasis n/a

Claim · model-written summary

The regeneration protocol could be used for gene transfer in rice.

Outcome
gene transfere6

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e6

“This regenerated protocol could be utilized for gene transfer in rice for the development of stress-tolerant and high yielding lines in future.”

✓ located verbatim in the source · abstract, characters 1619–1762 · show in text ↑

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kinetin · growth · Oryza sativa (rice)Results differ

59 papers: 52 positive, 7 negative or no effect

51 papers in the same direction as this paper · 6 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

55 papers more in this group

See all 59 papers →

1-naphthaleneacetic acid · growth · Oryza sativa (rice)Results differ

71 papers: 65 positive, 6 negative or no effect

64 papers in the same direction as this paper · 6 in the opposite direction

  1. positive
  2. positive
  3. positive

67 papers more in this group

See all 71 papers →

L-proline · growth · Oryza sativa (rice)Positive and negative results

3 papers: 2 positive, 1 negative or no effect

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

  1. positive
  2. negative
See all 3 papers →

indole-3-butyric acid · growth · Oryza sativa (rice)Positive and negative results

11 papers: 8 positive, 3 negative or no effect

7 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. no effect

7 papers more in this group

See all 11 papers →

agar · growth · Oryza sativa (rice)Positive 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 →

2,4-D · growth · Oryza sativa (rice)Positive and negative results

107 papers: 102 positive, 5 negative or no effect

101 papers in the same direction as this paper · 5 in the opposite direction

  1. positive
  2. positive
  3. positive

103 papers more in this group

See all 107 papers →

sucrose · growth · Oryza sativa (rice)Results agree

31 papers: 31 positive, 0 negative or no effect

30 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

27 papers more in this group

See all 31 papers →

in vitro · growth · Oryza sativa (rice)Positive and negative results

165 papers: 140 positive, 25 negative or no effect

139 papers in the same direction as this paper · 24 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

161 papers more in this group

See all 165 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.