Abstract
The study aimed to investigate the effects of heat stress on sugar beet growth and physiology. Two field tests were conducted at temperatures of 42 °C (heat stress) and 23 °C (moderate temperature) in different seasons. The results showed that sugar beet leaves grown under heat stress conditions exhibited higher levels of Malondialdehyde (MDA) and hydrogen peroxide (H2O2) compared to moderate temperature conditions in both seasons. Additionally, the activity of antioxidant enzymes, such as superoxide dismutase (SOD) and ascorbate peroxidase (APX), significantly increased in response to high temperatures. However, catalase (CAT) activity was lower in the second season's high-temperature samples compared to moderate temperature samples. The polypeptide patterns of the high-temperature samples showed the presence of new polypeptides (M.Wts of 123, 110, 103, 77, 51, 39, and 31 kD), while moderate temperature samples did not have these polypeptides. Agronomic traits revealed lower values of root weight, top fresh weight, root fresh yield, top fresh yield, and sucrose% in high-temperature conditions. Furthermore, gross sugar yield was lower, while sugar lost% and α-amino-N concentration were higher in the high-temperature conditions. Multivariate analysis was conducted to examine correlations between biochemical and developmental traits under heat stress.
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Claims 8
Claim · model-written summary
Sugar beet leaves under heat stress had higher malondialdehyde (MDA) and hydrogen peroxide (H2O2) levels than under moderate temperature in both seasons.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise1 - Organ / stage
- leavese1
- Treatment
- heat stress conditionse1
- Outcome
- Malondialdehyde (MDA) and hydrogen peroxide (H2O2)e1
- Direction
- highere1
- Qualifier
- in both seasonse1
- Comparator
- moderate temperature conditionse1
- Setting
- field testse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“sugar beet leaves grown under heat stress conditions exhibited higher levels of Malondialdehyde (MDA) and hydrogen peroxide (H2O2) compared to moderate temperature conditions in both seasons”
e0“Two field tests were conducted at temperatures of 42 °C (heat stress) and 23 °C (moderate temperature) in different seasons”
Claim · model-written summary
Antioxidant enzyme activity of superoxide dismutase (SOD) and ascorbate peroxidase (APX) increased significantly under high temperature.
- Taxon
- Sugar Beet (Beta vulgaris L.)
Beta vulgarist0 - Treatment
- high temperaturese2
- Gene
- superoxide dismutase (SOD) and ascorbate peroxidase (APX)e2
- Outcome
- activity of antioxidant enzymese2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sugar Beet (Beta vulgaris L.)”
e2“the activity of antioxidant enzymes, such as superoxide dismutase (SOD) and ascorbate peroxidase (APX), significantly increased in response to high temperatures”
Claim · model-written summary
Catalase (CAT) activity was lower under high temperature than under moderate temperature in the second season.
- Taxon
- Sugar Beet (Beta vulgaris L.)Beta vulgarist0
- Treatment
- high-temperature samplese3
- Gene
- catalase (CAT)e3
- Outcome
- activitye3
- Direction
- lowere3
- Qualifier
- second seasone3
- Comparator
- moderate temperature samplese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sugar Beet (Beta vulgaris L.)”
e3“catalase (CAT) activity was lower in the second season's high-temperature samples compared to moderate temperature samples”
Claim · model-written summary
New polypeptides (M.Wts 123, 110, 103, 77, 51, 39 and 31 kD) appeared in high-temperature samples and were absent from moderate temperature samples.
- Taxon
- Sugar Beet (Beta vulgaris L.)Beta vulgarist0
- Treatment
- high-temperature samplese4
- Outcome
- presence of new polypeptidese4
- Qualifier
- M.Wts of 123, 110, 103, 77, 51, 39, and 31 kDe4
- Comparator
- moderate temperature samplese4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sugar Beet (Beta vulgaris L.)”
e4“The polypeptide patterns of the high-temperature samples showed the presence of new polypeptides (M.Wts of 123, 110, 103, 77, 51, 39, and 31 kD), while moderate temperature samples did not have these polypeptides”
Claim · model-written summary
Root weight, top fresh weight and root fresh yield were lower in high-temperature conditions.
- Taxon
- Sugar Beet (Beta vulgaris L.)Beta vulgarist0
- Treatment
- high-temperature conditionse5
- Outcome
- root weight, top fresh weight, root fresh yielde5
- Direction
- lowere5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sugar Beet (Beta vulgaris L.)”
e5“Agronomic traits revealed lower values of root weight, top fresh weight, root fresh yield, top fresh yield, and sucrose% in high-temperature conditions”
Claim · model-written summary
Top fresh yield and sucrose% were lower in high-temperature conditions.
- Taxon
- Sugar Beet (Beta vulgaris L.)Beta vulgarist0
- Treatment
- high-temperature conditionse5
- Outcome
- top fresh yield, and sucrose%e5
- Direction
- lowere5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sugar Beet (Beta vulgaris L.)”
e5“Agronomic traits revealed lower values of root weight, top fresh weight, root fresh yield, top fresh yield, and sucrose% in high-temperature conditions”
Claim · model-written summary
Gross sugar yield was lower in high-temperature conditions.
- Taxon
- Sugar Beet (Beta vulgaris L.)Beta vulgarist0
- Treatment
- high-temperature conditionse6
- Outcome
- gross sugar yielde6
- Direction
- lowere6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sugar Beet (Beta vulgaris L.)”
e6“Furthermore, gross sugar yield was lower, while sugar lost% and α-amino-N concentration were higher in the high-temperature conditions”
Claim · model-written summary
Sugar lost% and α-amino-N concentration were higher in high-temperature conditions.
- Taxon
- Sugar Beet (Beta vulgaris L.)Beta vulgarist0
- Treatment
- high-temperature conditionse6
- Outcome
- sugar lost% and α-amino-N concentratione6
- Direction
- highere6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sugar Beet (Beta vulgaris L.)”
e6“Furthermore, gross sugar yield was lower, while sugar lost% and α-amino-N concentration were higher in the high-temperature conditions”
The same questions in other papers
heat · yield · Beta vulgaris (beet)Results agree
1 paper in the same direction as this paper
- negative
heat · molecular: metabolites · Beta vulgaris (beet)Results agree
2 papers in the same direction as this paper
- negative
- negative
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.