Paper · 2012 · TURKISH JOURNAL OF BOTANY

Comparative studies on the competence of axillary shoot regeneration on unsliced and longitudinally sliced cotyledon nodes of Vigna unguiculata

MUHAMMAD AASIM; SANCAR FATİH ÖZCAN; KHALID MAHMOOD kHAWAR; et al.

7
claims
14
verbatim quotes
7
citations
1
research areas
✓
Open access

Abstract

Vigna unguiculata is an important food legume crop in the semiarid tropics. It suffers from a host of agricultural constraints including damage due to diseases and pests. Judicious application of biotechnological methods can lead to considerable improvement in this important crop. Shoot regeneration from unsliced and longitudinally sliced cotyledon node explants obtained from 3-day-old to 5-day-old seedlings grown in vitro was achieved on Murashige and Skoog (MS) medium containing 1.11, 2.22, 3.33, and 4.44 \muM benzylaminopurine (BA) supplemented with 1.0 mg/L polyvinylpyrrolidone and 500 mg/L bacteriostatic Augmentin. Callus induction was recorded in all culture media on both explants. The shoot regeneration frequency (%) of longitudinally sliced cotyledon node explants was 2-fold to 3-fold higher than that of unsliced cotyledon node explants. A maximum number of 9.92 shoots per longitudinally sliced cotyledon node explant was recorded on MS medium containing 3.33 \muM BA. Each increase in the BA concentration of the culture medium proportionally decreased the mean shoot length on both explants. Maximum mean shoot lengths of 2.80 cm on unsliced cotyledon nodes and 3.04 cm on longitudinally sliced cotyledon node explant were recorded on MS medium containing 1.11 \muM BA. Regenerated shoots were rooted on MS rooting medium containing 2.45 \muM indole-3-butyric acid. In vitro regenerated plants were acclimatised at room temperature in growth rooms, where they produced viable seeds.

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Claims 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

In Vigna unguiculata, the shoot regeneration frequency of longitudinally sliced cotyledon node explants was 2- to 3-fold higher than that of unsliced explants.

Taxon
Vigna unguiculataVigna unguiculatat0
Treatment
longitudinally sliced cotyledon node explantse0
Outcome
shoot regeneration frequencye0
Direction
highere0
Value
2-fold to 3-folde0
Comparator
unsliced cotyledon node explantse0

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Vigna unguiculata”

✓ located verbatim in the source · title, characters 126–143 · show in text ↑
e0

“The shoot regeneration frequency (%) of longitudinally sliced cotyledon node explants was 2-fold to 3-fold higher than that of unsliced cotyledon node explants”

✓ located verbatim in the source · abstract, characters 697–856 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A maximum of 9.92 shoots per longitudinally sliced cotyledon node explant was recorded on MS medium with 3.33 \muM BA.

Taxon
Vigna unguiculataVigna unguiculatat0
Treatment
MS medium containing 3.33 \muM BAe0
Outcome
shoots per longitudinally sliced cotyledon node explante0
Direction
maximume0
Value
9.92e0

Not reportedComparator

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Vigna unguiculata”

✓ located verbatim in the source · title, characters 126–143 · show in text ↑
e0

“A maximum number of 9.92 shoots per longitudinally sliced cotyledon node explant was recorded on MS medium containing 3.33 \muM BA”

✓ located verbatim in the source · abstract, characters 858–988 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Each increase in the BA concentration of the culture medium proportionally decreased mean shoot length on both explant types.

Taxon
Vigna unguiculataVigna unguiculatat0
Treatment
increase in the BA concentratione0
Outcome
mean shoot lengthe0
Direction
decreasede0

Not reportedComparator

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Vigna unguiculata”

✓ located verbatim in the source · title, characters 126–143 · show in text ↑
e0

“Each increase in the BA concentration of the culture medium proportionally decreased the mean shoot length on both explants”

✓ located verbatim in the source · abstract, characters 990–1113 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Maximum mean shoot length on unsliced cotyledon nodes was 2.80 cm on MS medium with 1.11 \muM BA.

Taxon
Vigna unguiculataVigna unguiculatat0
Organ / stage
unsliced cotyledon nodese0
Treatment
MS medium containing 1.11 \muM BAe0
Outcome
Maximum mean shoot lengthse0
Direction
Maximume0
Value
2.80 cme0

Not reportedComparator

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Vigna unguiculata”

✓ located verbatim in the source · title, characters 126–143 · show in text ↑
e0

“Maximum mean shoot lengths of 2.80 cm on unsliced cotyledon nodes and 3.04 cm on longitudinally sliced cotyledon node explant were recorded on MS medium containing 1.11 \muM BA”

✓ located verbatim in the source · abstract, characters 1115–1291 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Maximum mean shoot length on longitudinally sliced cotyledon node explants was 3.04 cm on MS medium with 1.11 \muM BA.

Taxon
Vigna unguiculataVigna unguiculatat0
Organ / stage
longitudinally sliced cotyledon node explante0
Treatment
MS medium containing 1.11 \muM BAe0
Outcome
Maximum mean shoot lengthse0
Direction
Maximume0
Value
3.04 cme0

Not reportedComparator

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Vigna unguiculata”

✓ located verbatim in the source · title, characters 126–143 · show in text ↑
e0

“Maximum mean shoot lengths of 2.80 cm on unsliced cotyledon nodes and 3.04 cm on longitudinally sliced cotyledon node explant were recorded on MS medium containing 1.11 \muM BA”

✓ located verbatim in the source · abstract, characters 1115–1291 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Regenerated Vigna unguiculata shoots were rooted on MS rooting medium containing 2.45 \muM indole-3-butyric acid.

Taxon
Vigna unguiculataVigna unguiculatat0
Treatment
MS rooting medium containing 2.45 \muM indole-3-butyric acide0
Outcome
Regenerated shoots were rootede0

Not reportedDirection

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Vigna unguiculata”

✓ located verbatim in the source · title, characters 126–143 · show in text ↑
e0

“Regenerated shoots were rooted on MS rooting medium containing 2.45 \muM indole-3-butyric acid”

✓ located verbatim in the source · abstract, characters 1293–1387 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

In vitro regenerated plants were acclimatised in growth rooms, where they produced viable seeds.

Taxon
Vigna unguiculataVigna unguiculatat0
Outcome
produced viable seedse0
Setting
growth roomse0

Not reportedDirection

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Vigna unguiculata”

✓ located verbatim in the source · title, characters 126–143 · show in text ↑
e0

“In vitro regenerated plants were acclimatised at room temperature in growth rooms, where they produced viable seeds”

✓ located verbatim in the source · abstract, characters 1389–1504 · show in text ↑

N-benzyladenine · growth · Vigna unguiculata (cowpea)Positive and negative results

13 papers: 11 positive, 2 negative or no effect

1 paper in the same direction as this paper · 11 in the opposite direction

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in vitro · growth · Vigna unguiculata (cowpea)Positive and negative results

16 papers: 12 positive, 4 negative or no effect

11 papers in the same direction as this paper · 3 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. negative
  3. negative

12 papers more in this group

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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.