Abstract
Effects of different AgNO3 concentrations on the regeneration frequency of in vitro leaves and the activities of antioxidant enzymes in Jinshui and Jinhua pear cultivars (Pyrus brestchneideri Rehd.) were studied. The shoot regeneration frequency and buds per leaves of Jinshui cultivar dealt with 0.1 mg/L AgNO3 were improved significantly. The shoot regeneration frequency from leaves of Jinhua cultivar was enhanced on medium contained 0.1 to 0.5 mg/L AgNO3. The activities of antioxidant enzymes indicated significantly different compared with the control when the leaves dealt with AgNO3. During the period of dark treatment, CAT and POD activities in leaves were changed heavily, especially the changes of POD activity in the leaves of Jinhua cultivar and the CAT activity in the leaves of Jinshui cultivar was higher than the other three treatments when they dealt with 0.1 mg/L AgNO3. At the same time, production rates and H2O2 content would increase but the ascending degree was lower than the control. At the stage of light treatment, the pinnacle of SOD would enhance when adding apt concentration of AgNO3, while H2O2 content and production rates would decrease. On the contrary, higher concentration of AgNO3 would cause H2O2 content and production rates rising again. Though the changes of antioxidant enzymes in different cultivars were not the same,it could be concluded that 0.1 mg/L AgNO3 was the best to increase the activity of antioxidant enzymes in the leaves of both Jjinshui and Jinhua pear cultivars among the 4 treatments.
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Claims 11
Claim · model-written summary
At 0.1 mg/L AgNO3, Jinshui shoot regeneration frequency and buds per leaf improved significantly.
- Taxon
- pear
_Poirier_Fleurs_et_feuilles.jpg?width=60)
Pyrus communise1 - Material
- Jinshuie0
- Treatment
- 0.1 mg/L AgNO3e0
- Outcome
- shoot regeneration frequency and buds per leavese0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Poirier_Fleurs_et_feuilles.jpg?width=500)
Verbatim
e0“The shoot regeneration frequency and buds per leaves of Jinshui cultivar dealt with 0.1 mg/L AgNO3 were improved significantly.”
e1“pear cultivars (Pyrus brestchneideri Rehd.)”
Claim · model-written summary
Jinhua leaf shoot regeneration was enhanced at 0.1 to 0.5 mg/L AgNO3.
- Taxon
- pearPyrus communise1
- Material
- Jinhuae0
- Treatment
- 0.1 to 0.5 mg/L AgNO3e0
- Outcome
- shoot regeneration frequency from leavese0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The shoot regeneration frequency from leaves of Jinhua cultivar was enhanced on medium contained 0.1 to 0.5 mg/L AgNO3.”
e1“pear cultivars (Pyrus brestchneideri Rehd.)”
Claim · model-written summary
AgNO3 significantly changed pear leaf antioxidant enzyme activities relative to controls.
- Taxon
- pearPyrus communise1
- Treatment
- AgNO3e0
- Outcome
- activities of antioxidant enzymese0
- Direction
- differente0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activities of antioxidant enzymes indicated significantly different compared with the control when the leaves dealt with AgNO3.”
e1“pear cultivars (Pyrus brestchneideri Rehd.)”
Claim · model-written summary
During dark treatment, pear leaf CAT and POD activities changed substantially.
- Taxon
- pearPyrus communise1
- Treatment
- dark treatmente0
- Outcome
- CAT and POD activities in leavese0
- Direction
- changed heavilye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During the period of dark treatment, CAT and POD activities in leaves were changed heavily”
e1“pear cultivars (Pyrus brestchneideri Rehd.)”
Claim · model-written summary
At 0.1 mg/L AgNO3 in darkness, Jinhua POD activity showed a marked change.
- Taxon
- pearPyrus communise1
- Material
- Jinhua cultivare0
- Treatment
- 0.1 mg/L AgNO3e0
- Outcome
- POD activitye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“especially the changes of POD activity in the leaves of Jinhua cultivar and the CAT activity in the leaves of Jinshui cultivar was higher than the other three treatments when they dealt with 0.1 mg/L AgNO3.”
e1“pear cultivars (Pyrus brestchneideri Rehd.)”
Claim · model-written summary
At 0.1 mg/L AgNO3 in darkness, Jinshui CAT activity exceeded the other three treatments.
- Taxon
- pearPyrus communise1
- Material
- Jinshui cultivare0
- Treatment
- 0.1 mg/L AgNO3e0
- Outcome
- CAT activitye0
- Direction
- highere0
- Comparator
- other three treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the CAT activity in the leaves of Jinshui cultivar was higher than the other three treatments when they dealt with 0.1 mg/L AgNO3.”
e1“pear cultivars (Pyrus brestchneideri Rehd.)”
Claim · model-written summary
Production rates and H2O2 content increased less than in controls during dark treatment.
- Taxon
- pearPyrus communise1
- Outcome
- production rates and H2O2 contente0
- Direction
- increasee0
- Comparator
- the controle0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“production rates and H2O2 content would increase but the ascending degree was lower than the control.”
e1“pear cultivars (Pyrus brestchneideri Rehd.)”
Claim · model-written summary
During light treatment, suitable AgNO3 concentrations enhanced the SOD peak.
- Taxon
- pearPyrus communise1
- Treatment
- apt concentration of AgNO3e0
- Outcome
- pinnacle of SODe0
- Direction
- enhancee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the stage of light treatment, the pinnacle of SOD would enhance when adding apt concentration of AgNO3”
e1“pear cultivars (Pyrus brestchneideri Rehd.)”
Claim · model-written summary
Suitable AgNO3 concentrations decreased H2O2 content and production rates during light treatment.
- Taxon
- pearPyrus communise2
- Treatment
- apt concentration of AgNO3e1
- Outcome
- H2O2 content and production ratese0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while H2O2 content and production rates would decrease.”
e1“apt concentration of AgNO3”
e2“pear cultivars (Pyrus brestchneideri Rehd.)”
Claim · model-written summary
Higher AgNO3 concentrations raised H2O2 content and production rates again.
- Taxon
- pearPyrus communise1
- Treatment
- higher concentration of AgNO3e0
- Outcome
- H2O2 content and production ratese0
- Direction
- risinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher concentration of AgNO3 would cause H2O2 content and production rates rising again.”
e1“pear cultivars (Pyrus brestchneideri Rehd.)”
Claim · model-written summary
The authors judged 0.1 mg/L AgNO3 best for increasing antioxidant enzyme activity in both pear cultivars.
- Taxon
- pearPyrus communise0
- Treatment
- 0.1 mg/L AgNO3e0
- Outcome
- increase the activity of antioxidant enzymese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“0.1 mg/L AgNO3 was the best to increase the activity of antioxidant enzymes in the leaves of both Jjinshui and Jinhua pear cultivars among the 4 treatments.”