Abstract
The objective of the present was to enhance the frequency of plant regeneration in date palm (Phoenix dactylifera L.) cv. Hillawi. Explants were incubated on Murashige and Skoog (MS) medium supplemented with 1 mgl-1 6-benzyladenine (BA) and different concentrations (0.1 to 2.0 mgl-1) of thidiazuran (TDZ), or free of BA and TDZ (control treatment). The results indicate that the Maximum response (66.67%) was observed on medium supplemented with 1.0 mgl-1 BA and 0.5 mgl-1 TDZ, producing an average of 4.2 and 18.2 buds per culture after 16 and 24 week from culture, respectively. TDZ at concentrations higher than 0.5 mgl-1 resulted in suppressed buds formation, where a decrease in the number of buds was noticed when the concentration of TDZ was increased from 0.5 to 2 mgl-1. Regarding the activity of antioxidant enzyme peroxidase during budding of date palm cv. Hillawi, (The chemical analyses of peroxidase compounds were spectrophotometrically performed) the applied concentration of 0.5 mgl-1 TDZ with 1 mgl-1 BA enhanced peroxidase activity, where peroxidase activity was associated with increased number of buds formation. Histological studies revealed that adventitious buds were formed directly from epidermal cells without callus formation, and adventitious buds were developed from meristematic cells in shoot tip tissues. Shoots were elongated on 0.5 mgl-1 GA3+ 0.1 mgl-1 NAA MS media and rooted on MS media supplemented with 0.2 mgl-1 of α-naphthaleneacetic acid (NAA). Rooted shoots were successfully acclimatized and established in a mixture of peat moss and perlite (2:1) with 80% success. Key words: Date palm, thidiazuran (TDZ), adventitious buds, peroxidase (POD), histology.
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Claims 11
Claim · model-written summary
The maximum date palm regeneration response was 66.67% with 1.0 mgl-1 BA and 0.5 mgl-1 TDZ.
- Taxon
- Phoenix dactylifera L.
Phoenix dactyliferat0 - Material
- Hillawit0
- Treatment
- 1.0 mgl-1 BA and 0.5 mgl-1 TDZe0
- Outcome
- responsee0
- Direction
- Maximume0
- Value
- 66.67%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results indicate that the Maximum response (66.67%) was observed on medium supplemented with 1.0 mgl-1 BA and 0.5 mgl-1 TDZ, producing an average of 4.2 and 18.2 buds per culture after 16 and 24 week from culture, respectively.”
t0“date palm (Phoenix dactylifera L.) CV. Hillawi”
Claim · model-written summary
The BA and TDZ medium produced an average 4.2 buds per culture after 16 weeks.
- Taxon
- Phoenix dactylifera L.Phoenix dactyliferat0
- Material
- Hillawit0
- Treatment
- 1.0 mgl-1 BA and 0.5 mgl-1 TDZe0
- Outcome
- buds per culturee0
- Value
- 4.2e0
- Qualifier
- 16e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results indicate that the Maximum response (66.67%) was observed on medium supplemented with 1.0 mgl-1 BA and 0.5 mgl-1 TDZ, producing an average of 4.2 and 18.2 buds per culture after 16 and 24 week from culture, respectively.”
t0“date palm (Phoenix dactylifera L.) CV. Hillawi”
Claim · model-written summary
The BA and TDZ medium produced an average 18.2 buds per culture after 24 weeks.
- Taxon
- Phoenix dactylifera L.Phoenix dactyliferat0
- Material
- Hillawit0
- Treatment
- 1.0 mgl-1 BA and 0.5 mgl-1 TDZe0
- Outcome
- buds per culturee0
- Value
- 18.2 buds per culturee0
- Qualifier
- 24 week from culturee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results indicate that the Maximum response (66.67%) was observed on medium supplemented with 1.0 mgl-1 BA and 0.5 mgl-1 TDZ, producing an average of 4.2 and 18.2 buds per culture after 16 and 24 week from culture, respectively.”
t0“date palm (Phoenix dactylifera L.) CV. Hillawi”
Claim · model-written summary
Increasing TDZ above 0.5 mgl-1 suppressed bud formation.
- Taxon
- Phoenix dactylifera L.Phoenix dactyliferat0
- Material
- Hillawit0
- Treatment
- TDZ at concentrations higher than 0.5 mgl-1e0
- Outcome
- buds formatione0
- Direction
- suppressede0
- Comparator
- 0.5e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“TDZ at concentrations higher than 0.5 mgl-1 resulted in suppressed buds formation, where a decrease in the number of buds was noticed when the concentration of TDZ was increased from 0.5 to 2 mgl-1.”
t0“date palm (Phoenix dactylifera L.) CV. Hillawi”
Claim · model-written summary
TDZ with BA enhanced peroxidase activity during date palm budding.
- Taxon
- Phoenix dactylifera L.Phoenix dactyliferat0
- Material
- Hillawit0
- Treatment
- 0.5 mgl-1 TDZ with 1 mgl-1 BAe0
- Gene
- peroxidasee0
- Outcome
- peroxidase activitye0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the applied concentration of 0.5 mgl-1 TDZ with 1 mgl-1 BA enhanced peroxidase activity, where peroxidase activity was associated with increased number of buds formation.”
t0“date palm (Phoenix dactylifera L.) CV. Hillawi”
Claim · model-written summary
Peroxidase activity was associated with increased bud formation.
- Taxon
- Phoenix dactylifera L.Phoenix dactyliferat0
- Material
- Hillawit0
- Gene
- peroxidasee0
- Outcome
- number of budse0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“peroxidase activity was associated with increased number of buds formation.”
t0“date palm (Phoenix dactylifera L.) CV. Hillawi”
Claim · model-written summary
Adventitious date palm buds formed directly from epidermal cells without callus.
- Taxon
- Phoenix dactylifera L.Phoenix dactyliferat0
- Material
- Hillawit0
- Organ / stage
- epidermal cellse0
- Outcome
- adventitious buds were formed directly from epidermal cells without callus formatione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Histological studies revealed that adventitious buds were formed directly from epidermal cells without callus formation”
t0“date palm (Phoenix dactylifera L.) CV. Hillawi”
Claim · model-written summary
Adventitious date palm buds developed from meristematic cells in shoot tips.
- Taxon
- Phoenix dactylifera L.Phoenix dactyliferat0
- Material
- Hillawit0
- Organ / stage
- shoot tip tissuese0
- Outcome
- adventitious buds were developed from meristematic cellse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“adventitious buds were developed from meristematic cells in shoot tip tissues.”
t0“date palm (Phoenix dactylifera L.) CV. Hillawi”
Claim · model-written summary
Date palm shoots elongated on GA3 and NAA medium.
- Taxon
- Phoenix dactylifera L.Phoenix dactyliferat0
- Material
- Hillawit0
- Treatment
- 0.5 mgl-1 GA3+ 0.1 mgl-1 NAA MS mediae0
- Outcome
- Shoots were elongatede0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shoots were elongated on 0.5 mgl-1 GA3+ 0.1 mgl-1 NAA MS media and rooted on MS media supplemented with 0.2 mgl-1 of α-naphthaleneacetic acid (NAA).”
t0“date palm (Phoenix dactylifera L.) CV. Hillawi”
Claim · model-written summary
Date palm shoots rooted on medium with 0.2 mgl-1 NAA.
- Taxon
- Phoenix dactylifera L.Phoenix dactyliferat0
- Material
- Hillawit0
- Treatment
- MS media supplemented with 0.2 mgl-1 of α-naphthaleneacetic acid (NAA)e0
- Outcome
- rootede0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shoots were elongated on 0.5 mgl-1 GA3+ 0.1 mgl-1 NAA MS media and rooted on MS media supplemented with 0.2 mgl-1 of α-naphthaleneacetic acid (NAA).”
t0“date palm (Phoenix dactylifera L.) CV. Hillawi”
Claim · model-written summary
Rooted date palm shoots acclimatized and established in peat moss and perlite with 80% success.
- Taxon
- Phoenix dactylifera L.Phoenix dactyliferat0
- Material
- Hillawit0
- Treatment
- mixture of peat moss and perlite (2:1)e0
- Outcome
- successe0
- Value
- 80%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rooted shoots were successfully acclimatized and established in a mixture of peat moss and perlite (2:1) with 80% success.”
t0“date palm (Phoenix dactylifera L.) CV. Hillawi”
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