Abstract
Short-term waterlogging and chronic elevated temperature occur concomitantly in the cotton (Gossypium hirsutum) growing season. While previous research about co-occurring waterlogging and elevated temperature has focused primarily on cotton fiber, no studies have investigated carbohydrate metabolism of the subtending leaf (a major source leaf for boll development) cross-acclimation to aforementioned stressors. To address this, plants were exposed to ambient (31.6/26.5°C) and elevated (34.1/29.0°C) temperatures during the whole flowering and boll formation stage, and waterlogging (0, 3, 6 days) beginning on the day of anthesis. Both waterlogging and high temperature limited boll biomass (reduced by 1.19-32.14%), but effects of different durations of waterlogging coupled with elevated temperature on carbohydrate metabolism in the subtending leaf were quite different. The 6-day waterlogging combined with elevated temperature had the most negative impact on net photosynthetic rate (Pn) and carbohydrate metabolism of any treatment, leading to upregulated GhSusA and GhSusC expression and enhanced sucrose synthase (SuSy, EC 2.4.1.13) activity for sucrose degradation. A prior exposure to waterlogging for 3 days improved subtending leaf performance under elevated temperature. Pn, sucrose concentrations, Rubisco (EC 4.1.1.39) activity, and cytosolic fructose-1,6-bisphosphatase (cy-FBPase, EC 3.1.3.11) activity in the subtending leaf significantly increased, while SuSy activity decreased under 3 days waterlogging and elevated temperature combined relative to elevated temperature alone. Thus, we concluded that previous exposure to a brief (3 days) waterlogging stress improved sucrose composition and accumulation cross-acclimation to high temperature later in development not only by promoting leaf photosynthesis but also inhibiting sucrose degradation.
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Claims 9
Claim · model-written summary
Waterlogging combined with elevated temperature reduced cotton boll biomass by 1.19-32.14%
- Taxon
- cotton
Gossypium hirsutumt0 - Organ / stage
- bolle1
- Treatment
- waterlogging and high temperaturee1
- Outcome
- boll biomasse1
- Direction
- reducede1
- Value
- 1.19-32.14%e1
- Comparator
- ambient (31.6/26.5°C)e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in cotton (Gossypium hirsutum)”
e1“Both waterlogging and high temperature limited boll biomass (reduced by 1.19-32.14%)”
e2“plants were exposed to ambient (31.6/26.5°C) and elevated (34.1/29.0°C) temperatures during the whole flowering and boll formation stage, and waterlogging (0, 3, 6 days) beginning on the day of anthesis”
Claim · model-written summary
The 6-day waterlogging combined with elevated temperature had the most negative impact on net photosynthetic rate and carbohydrate metabolism of any treatment
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- 6-day waterlogging combined with elevated temperaturee1
- Outcome
- net photosynthetic rate (Pn)e1
- Direction
- most negative impacte1
- Comparator
- any treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in cotton (Gossypium hirsutum)”
e1“The 6-day waterlogging combined with elevated temperature had the most negative impact on net photosynthetic rate (Pn) and carbohydrate metabolism of any treatment”
Claim · model-written summary
Pn, sucrose concentrations and Rubisco activity in the subtending leaf increased under 3 days waterlogging combined with elevated temperature relative to elevated temperature alone
- Taxon
- cottonGossypium hirsutumt0
- Organ / stage
- subtending leafe1
- Treatment
- 3 days waterlogging and elevated temperature combinede1
- Outcome
- Pn, sucrose concentrations, Rubisco (EC 4.1.1.39) activitye1
- Direction
- increasede1
- Comparator
- elevated temperature alonee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in cotton (Gossypium hirsutum)”
e1“Pn, sucrose concentrations, Rubisco (EC 4.1.1.39) activity, and cytosolic fructose-1,6-bisphosphatase (cy-FBPase, EC 3.1.3.11) activity in the subtending leaf significantly increased, while SuSy activity decreased under 3 days waterlogging and elevated temperature combined relative to elevated temperature alone”
Claim · model-written summary
Cytosolic fructose-1,6-bisphosphatase activity in the subtending leaf increased under 3 days waterlogging combined with elevated temperature relative to elevated temperature alone
- Taxon
- cottonGossypium hirsutumt0
- Organ / stage
- subtending leafe1
- Treatment
- 3 days waterlogging and elevated temperature combinede1
- Gene
- cy-FBPasee1
- Outcome
- cytosolic fructose-1,6-bisphosphatase (cy-FBPase, EC 3.1.3.11) activitye1
- Direction
- increasede1
- Comparator
- elevated temperature alonee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in cotton (Gossypium hirsutum)”
e1“Pn, sucrose concentrations, Rubisco (EC 4.1.1.39) activity, and cytosolic fructose-1,6-bisphosphatase (cy-FBPase, EC 3.1.3.11) activity in the subtending leaf significantly increased, while SuSy activity decreased under 3 days waterlogging and elevated temperature combined relative to elevated temperature alone”
Claim · model-written summary
Sucrose synthase activity decreased in the subtending leaf under 3 days waterlogging combined with elevated temperature relative to elevated temperature alone
- Taxon
- cottonGossypium hirsutumt0
- Organ / stage
- subtending leafe1
- Treatment
- 3 days waterlogging and elevated temperature combinede1
- Gene
- SuSye1
- Outcome
- SuSy activitye1
- Direction
- decreasede1
- Comparator
- elevated temperature alonee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in cotton (Gossypium hirsutum)”
e1“Pn, sucrose concentrations, Rubisco (EC 4.1.1.39) activity, and cytosolic fructose-1,6-bisphosphatase (cy-FBPase, EC 3.1.3.11) activity in the subtending leaf significantly increased, while SuSy activity decreased under 3 days waterlogging and elevated temperature combined relative to elevated temperature alone”
Claim · model-written summary
The 6-day waterlogging combined with elevated temperature upregulated GhSusA and GhSusC expression in cotton
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- 6-day waterlogging combined with elevated temperaturee1
- Gene
- GhSusA and GhSusCe2
- Outcome
- GhSusA and GhSusC expressione2
- Direction
- upregulatede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in cotton (Gossypium hirsutum)”
e1“The 6-day waterlogging combined with elevated temperature had the most negative impact on net photosynthetic rate (Pn) and carbohydrate metabolism of any treatment”
e2“leading to upregulated GhSusA and GhSusC expression and enhanced sucrose synthase (SuSy, EC 2.4.1.13) activity for sucrose degradation”
Claim · model-written summary
Sucrose synthase activity was enhanced under 6-day waterlogging combined with elevated temperature
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- 6-day waterlogging combined with elevated temperaturee1
- Gene
- SuSye2
- Outcome
- sucrose synthase (SuSy, EC 2.4.1.13) activitye2
- Direction
- enhancede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in cotton (Gossypium hirsutum)”
e1“The 6-day waterlogging combined with elevated temperature had the most negative impact on net photosynthetic rate (Pn) and carbohydrate metabolism of any treatment”
e2“leading to upregulated GhSusA and GhSusC expression and enhanced sucrose synthase (SuSy, EC 2.4.1.13) activity for sucrose degradation”
Claim · model-written summary
Prior exposure to 3 days of waterlogging improved subtending leaf performance under elevated temperature in cotton
- Taxon
- cottonGossypium hirsutumt0
- Organ / stage
- subtending leafe1
- Treatment
- prior exposure to waterlogging for 3 dayse1
- Outcome
- subtending leaf performancee1
- Direction
- improvede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in cotton (Gossypium hirsutum)”
e1“A prior exposure to waterlogging for 3 days improved subtending leaf performance under elevated temperature”
Claim · model-written summary
Prior 3-day waterlogging is concluded to improve sucrose accumulation and cross-acclimation to high temperature by promoting leaf photosynthesis and inhibiting sucrose degradation
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- previous exposure to a brief (3 days) waterlogging stresse1
- Outcome
- sucrose composition and accumulatione1
- Qualifier
- promoting leaf photosynthesis but also inhibiting sucrose degradatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in cotton (Gossypium hirsutum)”
e1“previous exposure to a brief (3 days) waterlogging stress improved sucrose composition and accumulation cross-acclimation to high temperature later in development not only by promoting leaf photosynthesis but also inhibiting sucrose degradation”
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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.