Abstract
The involvement of hydrogen peroxide (H2O2) metabolism and catalase activity in dormancy release and sprouting of potato (Solanum tuberosum L.) tubers has been investigated in nine cultivars with a contrasting dormancy length. Phenotypic characterisation of tubers dormancy was established for all cultivars by following sprouting kenetics (percent of sprouted tubers following time during storage period). Catalase (CAT) activity and H2O2 content were measured during two important tuber physiological stages: dormancy and sprouting. Our results revealed three groups of cultivars according to the length of dormancy: ‘Arinda’, ‘Santana’, and ‘Safrane’, with short dormancy (7-8 weeks), ‘Mondial’, ‘Atlas’, and ‘Liseta’, with long dormancy (15-16 weeks) and ‘Spunta’, ‘Tango’, and ‘Nicola’, with intermediate dormancy (12-13 weeks). 80% of cultivars with short dormancy sprouted between the 5 th and 6 th week after harvest, between the 9 th and 10 th week for the second group with intermediate dormancy and between the 12 th and 13 th week for the cultivars with long dormancy. Biochemical characterisation showed CAT activity and low H2O2 content during the dormancy stage for all cultivars. CAT activity varied between 30 and 18.57 μmol H2O2 min -1 mg -1 of protein for ‘Atlas and ‘Nicola, respectively. For H2O2, the values ranged between 5.1 and 16.92 mmol (gFW) -1 in ‘Tango’, and ‘Liseta’, respectively. Sprouting was associated with a significant increase in H2O2 content (85.35 in ‘Arinda’, and 172.5 mmol g -1 FW -1 in ‘Santana’) and a decrease of CAT activity (5.09 in Tango and 13.15 μmol H2O2 min -1 mg -1 of protein in ‘Satana’.
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Claims 17
Claim · model-written summary
Cultivars Arinda, Santana and Safrane have short dormancy of 7-8 weeks.
- Taxon
- Solanum tuberosum L.
Solanum tuberosumt0 - Material
- ‘Arinda’, ‘Santana’, and ‘Safrane’e1
- Outcome
- dormancye1
- Value
- 7-8 weekse1
- Qualifier
- short dormancye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Solanum tuberosum L.”
e1“‘Arinda’, ‘Santana’, and ‘Safrane’, with short dormancy (7-8 weeks)”
Claim · model-written summary
Cultivars Mondial, Atlas and Liseta have long dormancy of 15-16 weeks.
- Taxon
- Solanum tuberosum L.Solanum tuberosumt0
- Material
- ‘Mondial’, ‘Atlas’, and ‘Liseta’e2
- Outcome
- dormancye2
- Value
- 15-16 weekse2
- Qualifier
- long dormancye2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Solanum tuberosum L.”
e2“‘Mondial’, ‘Atlas’, and ‘Liseta’, with long dormancy (15-16 weeks)”
Claim · model-written summary
Cultivars Spunta, Tango and Nicola have intermediate dormancy of 12-13 weeks.
- Taxon
- Solanum tuberosum L.Solanum tuberosumt0
- Material
- ‘Spunta’, ‘Tango’, and ‘Nicola’e3
- Outcome
- dormancye3
- Value
- 12-13 weekse3
- Qualifier
- intermediate dormancye3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Solanum tuberosum L.”
e3“‘Spunta’, ‘Tango’, and ‘Nicola’, with intermediate dormancy (12-13 weeks)”
Claim · model-written summary
Among cultivars with short dormancy, 80% sprouted between the 5th and 6th week after harvest.
- Taxon
- Solanum tuberosum L.Solanum tuberosumt0
- Outcome
- sproutede4
- Value
- 80%e4
- Qualifier
- between the 5 th and 6 th week after harveste4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Solanum tuberosum L.”
e4“80% of cultivars with short dormancy sprouted between the 5 th and 6 th week after harvest, between the 9 th and 10 th week for the second group with intermediate dormancy and between the 12 th and 13 th week for the cultivars with long dormancy”
Claim · model-written summary
Cultivars with intermediate dormancy sprouted between the 9th and 10th week.
- Taxon
- Solanum tuberosum L.Solanum tuberosumt0
- Outcome
- sproutede4
- Qualifier
- between the 9 th and 10 th week for the second group with intermediate dormancye4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Solanum tuberosum L.”
e4“80% of cultivars with short dormancy sprouted between the 5 th and 6 th week after harvest, between the 9 th and 10 th week for the second group with intermediate dormancy and between the 12 th and 13 th week for the cultivars with long dormancy”
Claim · model-written summary
Cultivars with long dormancy sprouted between the 12th and 13th week.
- Taxon
- Solanum tuberosum L.Solanum tuberosumt0
- Outcome
- sproutede4
- Qualifier
- between the 12 th and 13 th week for the cultivars with long dormancye4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Solanum tuberosum L.”
e4“80% of cultivars with short dormancy sprouted between the 5 th and 6 th week after harvest, between the 9 th and 10 th week for the second group with intermediate dormancy and between the 12 th and 13 th week for the cultivars with long dormancy”
Claim · model-written summary
Sprouting was associated with a significant increase in H2O2 content in potato tubers.
- Taxon
- Solanum tuberosum L.Solanum tuberosumt0
- Organ / stage
- Sproutinge7
- Outcome
- H2O2 contente7
- Direction
- increasee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Solanum tuberosum L.”
e7“Sprouting was associated with a significant increase in H2O2 content”
Claim · model-written summary
In cultivar Santana, H2O2 content at sprouting was 172.5 mmol g -1 FW -1.
- Taxon
- Solanum tuberosum L.Solanum tuberosumt0
- Material
- Santanae6
- Outcome
- H2O2 contente7
- Value
- 172.5 mmol g -1 FW -1e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Solanum tuberosum L.”
e7“Sprouting was associated with a significant increase in H2O2 content”
e6“85.35 in ‘Arinda’, and 172.5 mmol g -1 FW -1 in ‘Santana’”
Claim · model-written summary
In cultivar Arinda, H2O2 content at sprouting was 85.35.
- Taxon
- Solanum tuberosum L.Solanum tuberosumt0
- Material
- Arindae6
- Outcome
- H2O2 contente7
- Value
- 85.35e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Solanum tuberosum L.”
e7“Sprouting was associated with a significant increase in H2O2 content”
e6“85.35 in ‘Arinda’, and 172.5 mmol g -1 FW -1 in ‘Santana’”
Claim · model-written summary
Sprouting was associated with a decrease of catalase activity in potato tubers.
- Taxon
- Solanum tuberosum L.Solanum tuberosumt0
- Organ / stage
- Sproutinge7
- Outcome
- CAT activitye6
- Direction
- decreasee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Solanum tuberosum L.”
e7“Sprouting was associated with a significant increase in H2O2 content”
e6“a decrease of CAT activity”
Claim · model-written summary
In cultivar Tango, catalase activity at sprouting was 5.09 μmol H2O2 min -1 mg -1 of protein.
- Taxon
- Solanum tuberosum L.Solanum tuberosumt0
- Material
- Tangoe5
- Outcome
- CAT activitye6
- Value
- 5.09e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Solanum tuberosum L.”
e6“a decrease of CAT activity”
e5“5.09 in Tango and 13.15 μmol H2O2 min -1 mg -1 of protein in ‘Satana’”
Claim · model-written summary
In cultivar Satana, catalase activity at sprouting was 13.15 μmol H2O2 min -1 mg -1 of protein.
- Taxon
- Solanum tuberosum L.Solanum tuberosumt0
- Material
- Satanae5
- Outcome
- CAT activitye6
- Value
- 13.15e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Solanum tuberosum L.”
e6“a decrease of CAT activity”
e5“5.09 in Tango and 13.15 μmol H2O2 min -1 mg -1 of protein in ‘Satana’”
Claim · model-written summary
In cultivar Atlas, catalase activity during dormancy was 30 μmol H2O2 min -1 mg -1 of protein.
- Taxon
- Solanum tuberosum L.Solanum tuberosumt0
- Material
- Atlase5
- Outcome
- CAT activitye5
- Value
- 30e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Solanum tuberosum L.”
e5“CAT activity varied between 30 and 18.57 μmol H2O2 min -1 mg -1 of protein for ‘Atlas and ‘Nicola, respectively”
Claim · model-written summary
In cultivar Nicola, catalase activity was 18.57 μmol H2O2 min -1 mg -1 of protein.
- Taxon
- Solanum tuberosum L.Solanum tuberosumt0
- Material
- Nicolae5
- Outcome
- CAT activitye5
- Value
- 18.57e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Solanum tuberosum L.”
e5“CAT activity varied between 30 and 18.57 μmol H2O2 min -1 mg -1 of protein for ‘Atlas and ‘Nicola, respectively”
Claim · model-written summary
In cultivar Tango, H2O2 content was 5.1 mmol (gFW) -1.
- Taxon
- Solanum tuberosum L.Solanum tuberosumt0
- Material
- Tangoe5
- Outcome
- H2O2e5
- Value
- 5.1e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Solanum tuberosum L.”
e5“For H2O2, the values ranged between 5.1 and 16.92 mmol (gFW) -1 in ‘Tango’, and ‘Liseta’, respectively”
Claim · model-written summary
In cultivar Liseta, H2O2 content was 16.92 mmol (gFW) -1.
- Taxon
- Solanum tuberosum L.Solanum tuberosumt0
- Material
- Lisetae5
- Outcome
- H2O2e5
- Value
- 16.92e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Solanum tuberosum L.”
e5“For H2O2, the values ranged between 5.1 and 16.92 mmol (gFW) -1 in ‘Tango’, and ‘Liseta’, respectively”
Claim · model-written summary
During the dormancy stage, all cultivars showed CAT activity and low H2O2 content.
- Taxon
- Solanum tuberosum L.Solanum tuberosumt0
- Organ / stage
- dormancy stagee5
- Outcome
- CAT activity and low H2O2 contente5
- Qualifier
- for all cultivarse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Solanum tuberosum L.”
e5“CAT activity and low H2O2 content during the dormancy stage for all cultivars”