Paper · 2014 · Plant Tissue Culture and Biotechnology

Induction of Direct Adventitious Shoot Regeneration in Pear (Pyrus communis L.)

Mahdieh Yousefiara; Maryam Jafarkhani Kermani; Abdolreza Bagheri; et al.

6
claims
12
verbatim quotes
3
citations
2
research areas
✓
Open access

Abstract

Efficient direct shoot regeneration of two pear (Pyrus communis L.), namely 'bartlett' and 'dargazi' was successfully developed for the use in future genetic engineering research. The basal MS and NN media supplemented with different concentrations of TDZ (0, 2.5, 5, 7.5 ?M) or BAP (0, 4, 8, 16 ?M) in combination with NAA (1 ?M) were compared. The result showed that direct adventitious shoot regeneration in pear was highly dependent on genotype, explant type and culture media. 'dargazi' had higher rate of regeneration compared to 'bartlett' and in both cultivars the highest per cent of regeneration was observed in lower sections of the leaves. Although the highest per cent of regeneration in 'bartlett' (38) was attained in the NN medium containing 2.5 µM TDZ and 1 µM NAA, but the differences in shoot regeneration between media containing 5 or 7.5 µM TDZ and 1 µM NAA were not significant. The highest per cent of regeneration in 'dargazi' (56) was obtained in NN medium containing 7.5 µm TDZ and 1 µm NAA. Plant Tissue Cult. & Biotech. 24(1): 87-92, 2014 (June) D. O. I. http://dx.doi.org/10.3329/ptcb.v24i1.19215

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Claims 6

Associationobservedoriginal resultmeasured

Claim · model-written summary

Pear adventitious shoot regeneration depended strongly on genotype, explant type and culture medium.

Material
genotypee0
Organ / stage
explant typee0
Treatment
culture mediae0
Outcome
direct adventitious shoot regeneratione0

Not reportedDirection

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

Pyrus communis
Pyrus communis · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“direct adventitious shoot regeneration in pear was highly dependent on genotype, explant type and culture media”

✓ located verbatim in the source · abstract, characters 369–480 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

'dargazi' regenerated at a higher rate than 'bartlett'.

Material
'dargazi'e0
Outcome
rate of regeneratione0
Direction
highere0
Comparator
'bartlett'e0

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

Pyrus communis
Pyrus communis · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“'dargazi' had higher rate of regeneration compared to 'bartlett'”

✓ located verbatim in the source · abstract, characters 482–546 · show in text ↑
t0

“Pear (Pyrus communis L.)”

✓ located verbatim in the source · title, characters 55–79 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Both pear cultivars had their highest regeneration percentage in lower leaf sections.

Organ / stage
lower sections of the leavese0
Outcome
per cent of regeneratione0
Direction
higheste0

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

Pyrus communis
Pyrus communis · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“in both cultivars the highest per cent of regeneration was observed in lower sections of the leaves”

✓ located verbatim in the source · abstract, characters 551–650 · show in text ↑
t0

“Pear (Pyrus communis L.)”

✓ located verbatim in the source · title, characters 55–79 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

For 'bartlett', the highest regeneration percentage was 38 in NN medium with 2.5 µM TDZ and 1 µM NAA.

Material
'bartlett'e0
Treatment
NN medium containing 2.5 µM TDZ and 1 µM NAAe0
Outcome
per cent of regeneratione0
Direction
higheste0
Value
38e0

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

Pyrus communis
Pyrus communis · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the highest per cent of regeneration in 'bartlett' (38) was attained in the NN medium containing 2.5 µM TDZ and 1 µM NAA”

✓ located verbatim in the source · abstract, characters 661–781 · show in text ↑
t0

“Pear (Pyrus communis L.)”

✓ located verbatim in the source · title, characters 55–79 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

For 'bartlett', shoot regeneration did not differ significantly between media containing 5 or 7.5 µM TDZ with 1 µM NAA.

Material
'bartlett'e1
Treatment
5 or 7.5 µM TDZ and 1 µM NAAe0
Outcome
shoot regeneratione0
Comparator
mediae0

Not reportedDirection

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

Pyrus communis
Pyrus communis · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“differences in shoot regeneration between media containing 5 or 7.5 µM TDZ and 1 µM NAA were not significant”

✓ located verbatim in the source · abstract, characters 791–899 · show in text ↑
t0

“Pear (Pyrus communis L.)”

✓ located verbatim in the source · title, characters 55–79 · show in text ↑
e1

“regeneration in 'bartlett' (38)”

✓ located verbatim in the source · abstract, characters 685–716 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

For 'dargazi', the highest regeneration percentage was 56 in NN medium with 7.5 µm TDZ and 1 µm NAA.

Material
'dargazi'e0
Treatment
NN medium containing 7.5 µm TDZ and 1 µm NAAe0
Outcome
per cent of regeneratione0
Direction
higheste0
Value
56e0

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

Pyrus communis
Pyrus communis · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The highest per cent of regeneration in 'dargazi' (56) was obtained in NN medium containing 7.5 µm TDZ and 1 µm NAA”

✓ located verbatim in the source · abstract, characters 901–1016 · show in text ↑
t0

“Pear (Pyrus communis L.)”

✓ located verbatim in the source · title, characters 55–79 · show in text ↑

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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.