Abstract
Effects of heat on cell membrane permeability, metabolic activity, and glycoalkaloid content were studied in stored potato tubers. Heat-induced alteration of cell membrane permeability was estimated by ion leakage and tissue viability by the (trichlorophenyl)tetrazolium chloride (TTC) reduction test. Solanidine, α-solanine, and α-chaconine contents were determined colorimetrically. Atlantic (a heat-susceptible cultivar) accumulated 74% more total glycoalkaloids (TGA) after 4 h at 35 °C than after 4 h at 22 °C. LT7 (a heat-resistant cultivar) showed a 50% reduction in TGA content after the same treatment. Ion leakage was similar for both cultivars after 90 min at 35 °C, but for the remainder of the incubation period (4 h), it was 15−20% greater in Atlantic than in LT7. At 35 °C, LT7 showed one-third the TTC reduction activity shown by Atlantic. Calcium treatment reduced ion leakage, while it resulted in higher TTC reduction activity in Atlantic than in LT7. Incubation in a solution of glycoalkaloids caused a 50% decrease in TTC reduction activity in Atlantic but did not affect LT7. Damage was aggravated at elevated temperatures, especially in Atlantic. Possible roles of calcium in protection against glycoalkaloid damage are discussed. Keywords: Potato ( Solanum ); glycoalkaloids; membranes; heat; calcium
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Claims 10
Claim · model-written summary
Atlantic, a heat-susceptible cultivar, accumulated 74% more total glycoalkaloids after 4 h at 35 °C than after 4 h at 22 °C.
- Taxon
- potato
Solanum tuberosume0 - Material
- Atlantice1
- Treatment
- 4 h at 35 °Ce1
- Outcome
- total glycoalkaloids (TGA)e1
- Direction
- moree1
- Value
- 74%e1
- Comparator
- 4 h at 22 °Ce1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Heat-Induced Damage in Potato (Solanum tuberosum) Tubers”
e1“Atlantic (a heat-susceptible cultivar) accumulated 74% more total glycoalkaloids (TGA) after 4 h at 35 °C than after 4 h at 22 °C”
Claim · model-written summary
LT7, a heat-resistant cultivar, showed a 50% reduction in total glycoalkaloid content after 4 h at 35 °C.
- Taxon
- potatoSolanum tuberosume0
- Material
- LT7e2
- Treatment
- 4 h at 35 °Ce1
- Outcome
- TGA contente2
- Direction
- reductione2
- Value
- 50%e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Heat-Induced Damage in Potato (Solanum tuberosum) Tubers”
e2“LT7 (a heat-resistant cultivar) showed a 50% reduction in TGA content after the same treatment”
e1“Atlantic (a heat-susceptible cultivar) accumulated 74% more total glycoalkaloids (TGA) after 4 h at 35 °C than after 4 h at 22 °C”
Claim · model-written summary
Ion leakage was similar in both cultivars after 90 min at 35 °C.
- Taxon
- potatoSolanum tuberosume0
- Material
- Atlantice3
- Treatment
- 90 min at 35 °Ce3
- Outcome
- Ion leakagee3
- Direction
- similare3
- Comparator
- LT7e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Heat-Induced Damage in Potato (Solanum tuberosum) Tubers”
e3“Ion leakage was similar for both cultivars after 90 min at 35 °C, but for the remainder of the incubation period (4 h), it was 15−20% greater in Atlantic than in LT7”
Claim · model-written summary
Ion leakage was 15–20% greater in Atlantic than in LT7 during the remaining 4 h of heat incubation.
- Taxon
- potatoSolanum tuberosume0
- Material
- Atlantice3
- Treatment
- for the remainder of the incubation period (4 h)e3
- Outcome
- Ion leakagee3
- Direction
- greatere3
- Value
- 15−20%e3
- Comparator
- LT7e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Heat-Induced Damage in Potato (Solanum tuberosum) Tubers”
e3“Ion leakage was similar for both cultivars after 90 min at 35 °C, but for the remainder of the incubation period (4 h), it was 15−20% greater in Atlantic than in LT7”
Claim · model-written summary
At 35 °C, LT7 had one-third the TTC reduction activity of Atlantic.
- Taxon
- potatoSolanum tuberosume0
- Material
- LT7e4
- Treatment
- 35 °Ce4
- Outcome
- TTC reduction activitye4
- Direction
- one-third thee4
- Value
- one-thirde4
- Comparator
- Atlantice4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Heat-Induced Damage in Potato (Solanum tuberosum) Tubers”
e4“At 35 °C, LT7 showed one-third the TTC reduction activity shown by Atlantic”
Claim · model-written summary
Calcium treatment reduced ion leakage in potato tubers.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- Calcium treatmente5
- Outcome
- ion leakagee5
- Direction
- reducede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Heat-Induced Damage in Potato (Solanum tuberosum) Tubers”
e5“Calcium treatment reduced ion leakage”
Claim · model-written summary
Calcium treatment gave higher TTC reduction activity in Atlantic than in LT7.
- Taxon
- potatoSolanum tuberosume0
- Material
- Atlantice6
- Treatment
- Calcium treatmente5
- Outcome
- TTC reduction activitye6
- Direction
- highere6
- Comparator
- LT7e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Heat-Induced Damage in Potato (Solanum tuberosum) Tubers”
e5“Calcium treatment reduced ion leakage”
e6“while it resulted in higher TTC reduction activity in Atlantic than in LT7”
Claim · model-written summary
Incubation in a glycoalkaloid solution caused a 50% decrease in TTC reduction activity in Atlantic.
- Taxon
- potatoSolanum tuberosume0
- Material
- Atlantice7
- Treatment
- Incubation in a solution of glycoalkaloidse7
- Outcome
- TTC reduction activitye7
- Direction
- decreasee7
- Value
- 50%e7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Heat-Induced Damage in Potato (Solanum tuberosum) Tubers”
e7“Incubation in a solution of glycoalkaloids caused a 50% decrease in TTC reduction activity in Atlantic but did not affect LT7”
Claim · model-written summary
Incubation in a glycoalkaloid solution did not affect TTC reduction activity in LT7.
- Taxon
- potatoSolanum tuberosume0
- Material
- LT7e7
- Treatment
- Incubation in a solution of glycoalkaloidse7
- Outcome
- TTC reduction activitye7
- Direction
- did not affecte7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Heat-Induced Damage in Potato (Solanum tuberosum) Tubers”
e7“Incubation in a solution of glycoalkaloids caused a 50% decrease in TTC reduction activity in Atlantic but did not affect LT7”
Claim · model-written summary
Heat damage was aggravated at elevated temperatures, especially in Atlantic.
- Taxon
- potatoSolanum tuberosume0
- Material
- Atlantice1
- Treatment
- elevated temperaturese1
- Outcome
- Damagee1
- Direction
- aggravatede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Heat-Induced Damage in Potato (Solanum tuberosum) Tubers”
e1“Damage was aggravated at elevated temperatures, especially in Atlantic”
The same questions in other papers
glycoalkaloid · molecular: metabolites · Solanum tuberosum (potato)Positive and negative results
1 in the opposite direction
- positive
calcium atom · molecular: metabolites · Solanum tuberosum (potato)Positive and negative results
6 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
4 papers more in this group
See all 8 papers →heat · pest · Solanum tuberosum (potato)Positive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
1 paper more in this group
See all 5 papers →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.