Abstract
The cotton (Gossypium hirsutum L.) crop experiences high temperatures during flowering and boll development, but information regarding the impact of ethylene inhibition and high temperature on early boll development is limited. The objective of this study was to determine the effects of high temperature and the anti-ethylene compound 1-methylcycloprone (1-MCP) on G. hirsutum boll development. Treatments consisted of temperature regime (38/20C and 30/ 20C), 1-MCP treatment, and days past anthesis (DPA). High temperature decreased ethylene synthesis by 61% at 2 DPA, and 1-MCP caused a 40% decrease in ethylene production at 1 DPA. Glutathione reductase activity increased under high temperature, whereas superoxide dismutase activity (SOD) and membrane peroxidation (malondialdehyde content) remained unchanged. 1-MCP treatment did not affect GR activity in developing bolls. High temperature and 1-MCP treatment increased the weight of cotton bolls collected 8 DPA with an increase of 0.7 and 1 g, respectively. We propose that increased GR activity in bolls exposed to high temperature may mitigate oxidative damage. Additionally, we conclude that ethylene inhibition (either high temperature or 1-MCP-induced) immediately after flowering (1 or 2 DPA) could potentially have positive impacts on early boll growth.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 10
Claim · model-written summary
High temperature reduced ethylene synthesis by 61% at 2 DPA.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- High temperaturee1
- Outcome
- ethylene synthesise1
- Direction
- decreasede1
- Value
- 61%e1
- Qualifier
- at 2 DPAe1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cotton (Gossypium hirsutum L.) crop”
e1“High temperature decreased ethylene synthesis by 61% at 2 DPA”
Claim · model-written summary
1-MCP reduced ethylene production by 40% at 1 DPA.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- 1-MCPe1
- Outcome
- ethylene productione1
- Direction
- decreasee1
- Value
- 40%e1
- Qualifier
- at 1 DPAe1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cotton (Gossypium hirsutum L.) crop”
e1“1-MCP caused a 40% decrease in ethylene production at 1 DPA”
Claim · model-written summary
High temperature increased glutathione reductase activity.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- high temperaturee1
- Gene
- Glutathione reductasee1
- Outcome
- Glutathione reductase activitye1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cotton (Gossypium hirsutum L.) crop”
e1“Glutathione reductase activity increased under high temperature”
Claim · model-written summary
Superoxide dismutase activity was unchanged under high temperature.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- high temperaturee1
- Gene
- superoxide dismutasee1
- Outcome
- superoxide dismutase activitye1
- Direction
- remained unchangede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cotton (Gossypium hirsutum L.) crop”
e1“Glutathione reductase activity increased under high temperature, whereas superoxide dismutase activity (SOD) and membrane peroxidation (malondialdehyde content) remained unchanged”
Claim · model-written summary
Membrane peroxidation remained unchanged under high temperature.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- high temperaturee1
- Outcome
- membrane peroxidation (malondialdehyde content)e1
- Direction
- remained unchangede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cotton (Gossypium hirsutum L.) crop”
e1“Glutathione reductase activity increased under high temperature, whereas superoxide dismutase activity (SOD) and membrane peroxidation (malondialdehyde content) remained unchanged”
Claim · model-written summary
1-MCP did not affect glutathione reductase activity in developing bolls.
- Taxon
- cottonGossypium hirsutume0
- Organ / stage
- developing bollse1
- Treatment
- 1-MCP treatmente1
- Outcome
- GR activitye1
- Direction
- did not affecte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cotton (Gossypium hirsutum L.) crop”
e1“1-MCP treatment did not affect GR activity in developing bolls”
Claim · model-written summary
High temperature increased cotton boll weight by 0.7 g at 8 DPA.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- High temperaturee0
- Outcome
- weight of cotton bollse0
- Direction
- increasede0
- Value
- 0.7e0
- Qualifier
- 8 DPAe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High temperature and 1-MCP treatment increased the weight of cotton bolls collected 8 DPA with an increase of 0.7 and 1 g, respectively”
Claim · model-written summary
1-MCP increased cotton boll weight by 1 g at 8 DPA.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- 1-MCP treatmente0
- Outcome
- weight of cotton bollse0
- Direction
- increasede0
- Value
- 1 ge0
- Qualifier
- 8 DPAe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High temperature and 1-MCP treatment increased the weight of cotton bolls collected 8 DPA with an increase of 0.7 and 1 g, respectively”
Claim · model-written summary
The authors propose that increased glutathione reductase activity may mitigate oxidative damage under high temperature.
- Taxon
- cottonGossypium hirsutume0
- Organ / stage
- bollse1
- Treatment
- high temperaturee1
- Gene
- GRe1
- Outcome
- oxidative damagee1
- Qualifier
- may mitigatee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cotton (Gossypium hirsutum L.) crop”
e1“We propose that increased GR activity in bolls exposed to high temperature may mitigate oxidative damage”
Claim · model-written summary
The authors conclude that ethylene inhibition just after flowering could benefit early boll growth.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- ethylene inhibitione1
- Outcome
- early boll growthe1
- Qualifier
- could potentially have positive impactse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cotton (Gossypium hirsutum L.) crop”
e1“ethylene inhibition (either high temperature or 1-MCP-induced) immediately after flowering (1 or 2 DPA) could potentially have positive impacts on early boll growth”
The same questions in other papers
1-methylcyclopropene · physiology: hormones · Gossypium hirsutum (cotton)Positive and negative results
1 in the opposite direction
- positive
1-methylcyclopropene · physiology: antioxidant enzymes · Gossypium hirsutum (cotton)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- no effect
1-methylcyclopropene · organism · Gossypium hirsutum (cotton)Results agree
1 paper in the same direction as this paper
- positive
heat · physiology: antioxidant enzymes · Gossypium hirsutum (cotton)Results differ
6 papers in the same direction as this paper · 3 in the opposite direction
- negative
- no effect
- negative
6 papers more in this group
See all 10 papers →heat · physiology: oxidative · Gossypium hirsutum (cotton)Results differ
10 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
9 papers more in this group
See all 13 papers →heat · physiology: hormones · Gossypium hirsutum (cotton)Positive and negative results
2 papers in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
2 papers more in this group
See all 6 papers →heat · organism · Gossypium hirsutum (cotton)Results agree
1 paper in the same direction as this paper
- positive
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.