Abstract
Cotton seeds planted under dryland conditions frequently experience periods of water-deficit stress and elevated temperatures during seedling establishment. The effect of water-deficit stress on the expression of acquired thermotolerance in cotton (Gossypium hirsutum L. ‘Paymaster HS26’) 1 was evaluated. Germinating cotton seeds were water stressed in either polyethylene glycol solutions or vermiculite. Whether exposure to elevated temperatures induced thermotolerance was evaluated with the use of a chlorophyll accumulation assay. The results showed reduced seedling growth under water-deficit stress, yet acquired thermotolerance was not inhibited. Protein analysis at 5 d after planting showed that developmentally regulated heat shock proteins HSP101 and HSP17.6 were present in the cotyledons of water deficit‐stressed cotton seedlings and that these proteins were absent in cotyledons from wellwatered seedlings. The presence of these heat shock proteins in the water deficit‐stressed seedlings failed to enhance their inherent or acquired thermotolerance, compared with that of well-watered seedlings. These results suggest that the developmentally regulated heat shock proteins are not metabolically available to assist in enhancing thermotolerance.
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Claims 5
Claim · model-written summary
Water deficit reduced cotton seedling growth.
- Taxon
- cotton
Gossypium hirsutumt0 - Treatment
- water-deficit stresse0
- Outcome
- seedling growthe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced seedling growth under water-deficit stress”
t0“cotton seeds”
Claim · model-written summary
Water deficit did not inhibit acquired thermotolerance.
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- acquired thermotolerancee0
- Direction
- not inhibitede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton seeds”
e0“acquired thermotolerance was not inhibited”
Claim · model-written summary
HSP101 and HSP17.6 were present in stressed cotyledons and absent in well watered cotyledons.
- Taxon
- cottonGossypium hirsutumt0
- Organ / stage
- cotyledonse0
- Gene
- HSP101 and HSP17.6e0
- Outcome
- were presente0
- Comparator
- wellwatered seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton seeds”
e0“heat shock proteins HSP101 and HSP17.6 were present in the cotyledons of water deficit‐stressed cotton seedlings and that these proteins were absent in cotyledons from wellwatered seedlings”
Claim · model-written summary
The heat shock proteins failed to enhance inherent or acquired thermotolerance compared with well watered seedlings.
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- inherent or acquired thermotolerancee0
- Direction
- failed to enhancee0
- Qualifier
- presence of these heat shock proteinse0
- Comparator
- well-watered seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton seeds”
e0“The presence of these heat shock proteins in the water deficit‐stressed seedlings failed to enhance their inherent or acquired thermotolerance, compared with that of well-watered seedlings”
Claim · model-written summary
The authors infer that developmentally regulated heat shock proteins were not metabolically available to enhance thermotolerance.
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- enhancing thermotolerancee0
- Qualifier
- not metabolically availablee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton seeds”
e0“the developmentally regulated heat shock proteins are not metabolically available to assist in enhancing thermotolerance”
The same questions in other papers
drought · growth · Gossypium hirsutum (cotton)Positive and negative results
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See all 86 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.