Abstract
Yield of cotton (Gossypium hirsutum) does not always fall with high temperature (HT) even though this induces significant reductions in fruit retention. To investigate the underlying mechanisms, a greenhouse experiment was conducted with two temperature regimes [control treatment, 28 °C; high temperature (HT), 34 °C] for 7 d. Results showed HT did not significantly influence cotton yield, but reduced boll number and increased boll weight. The 13C distribution ratio of the leaf subtending the cotton boll (LSCB) decreased while that of the cotton boll increased under HT. Transcriptomic and proteomic analyses of the LSCB revealed up-regulated genes involved in cytokinin and jasmonic acid synthesis, as well as SWEET15 (GH_D01G0218), which positively regulated photosynthesis and transport photosynthate, ultimately leading to increased boll weight. After 7 d recovery from HT, the 13C distribution ratio of the LSCB increased while that of the cotton boll decreased. However, boll weight still increased, which was related to increased amylase and sucrose phosphate synthase activities and up-regulated sucrose transport genes in the main-stem leaf and capsule wall. Thus, both accelerated sucrose synthesis and transport in the LSCB under HT and increased sucrose supply ability of the main-stem leaf and capsule wall after recovery from HT contributed to an increased boll weight, which finally maintained cotton yield.
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Claims 12
Claim · model-written summary
High temperature did not significantly affect cotton yield.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- HTe0
- Outcome
- cotton yielde0
- Direction
- did not significantly influencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results showed HT did not significantly influence cotton yield”
Claim · model-written summary
High temperature reduced cotton boll number.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- HTe0
- Outcome
- boll numbere0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results showed HT did not significantly influence cotton yield, but reduced boll number”
Claim · model-written summary
High temperature increased cotton boll weight.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- HTe0
- Outcome
- boll weighte0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results showed HT did not significantly influence cotton yield, but reduced boll number and increased boll weight”
Claim · model-written summary
Under high temperature, the 13C distribution ratio of the leaf subtending the boll decreased.
- Taxon
- cottonGossypium hirsutume0
- Organ / stage
- leaf subtending the cotton boll (LSCB)e0
- Treatment
- HTe0
- Outcome
- 13C distribution ratioe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 13C distribution ratio of the leaf subtending the cotton boll (LSCB) decreased while that of the cotton boll increased under HT”
Claim · model-written summary
Under high temperature, the 13C distribution ratio of the cotton boll increased.
- Taxon
- cottonGossypium hirsutume0
- Organ / stage
- cotton bolle0
- Treatment
- HTe0
- Outcome
- 13C distribution ratioe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 13C distribution ratio of the leaf subtending the cotton boll (LSCB) decreased while that of the cotton boll increased under HT”
Claim · model-written summary
High temperature up-regulated genes involved in cytokinin and jasmonic acid synthesis in the subtending leaf.
- Taxon
- cottonGossypium hirsutumt0
- Organ / stage
- LSCBe0
- Treatment
- HTt0
- Outcome
- genes involved in cytokinin and jasmonic acid synthesise0
- Direction
- up-regulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Transcriptomic and proteomic analyses of the LSCB revealed up-regulated genes involved in cytokinin and jasmonic acid synthesis”
t0“cotton photosynthetic organs and increase in boll weight reduce yield loss under high temperature”
Claim · model-written summary
SWEET15 was up-regulated and positively regulated photosynthesis and photosynthate transport.
- Taxon
- cottonGossypium hirsutumt0
- Gene
- SWEET15 (GH_D01G0218)e0
- Outcome
- photosynthesis and transport photosynthatee0
- Direction
- positively regulatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“as well as SWEET15 (GH_D01G0218), which positively regulated photosynthesis and transport photosynthate”
t0“cotton photosynthetic organs and increase in boll weight reduce yield loss under high temperature”
Claim · model-written summary
After recovery, the 13C distribution ratio of the subtending leaf increased.
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- 13C distribution ratio of the LSCBe0
- Direction
- increasede0
- Qualifier
- After 7 d recovery from HTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After 7 d recovery from HT, the 13C distribution ratio of the LSCB increased”
t0“cotton photosynthetic organs and increase in boll weight reduce yield loss under high temperature”
Claim · model-written summary
After recovery, the 13C distribution ratio of the cotton boll decreased.
- Taxon
- cottonGossypium hirsutumt0
- Organ / stage
- cotton bolle0
- Outcome
- 13C distribution ratioe0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After 7 d recovery from HT, the 13C distribution ratio of the LSCB increased while that of the cotton boll decreased”
t0“cotton photosynthetic organs and increase in boll weight reduce yield loss under high temperature”
Claim · model-written summary
Cotton boll weight remained increased after recovery.
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- boll weighte0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, boll weight still increased”
t0“cotton photosynthetic organs and increase in boll weight reduce yield loss under high temperature”
Claim · model-written summary
Increased amylase and sucrose phosphate synthase activities were related to greater boll weight after recovery.
- Taxon
- cottonGossypium hirsutumt0
- Gene
- amylase and sucrose phosphate synthasee0
- Outcome
- boll weighte0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“boll weight still increased, which was related to increased amylase and sucrose phosphate synthase activities”
t0“cotton photosynthetic organs and increase in boll weight reduce yield loss under high temperature”
Claim · model-written summary
Up-regulated sucrose transport genes were related to greater boll weight after recovery.
- Taxon
- cottonGossypium hirsutumt0
- Organ / stage
- main-stem leaf and capsule walle0
- Gene
- sucrose transport genese0
- Outcome
- boll weighte0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“boll weight still increased, which was related to increased amylase and sucrose phosphate synthase activities and up-regulated sucrose transport genes in the main-stem leaf and capsule wall”
t0“cotton photosynthetic organs and increase in boll weight reduce yield loss under high temperature”
The same questions in other papers
heat · yield · Gossypium hirsutum (cotton)Results differ
6 papers in the same direction as this paper · 22 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- negative
26 papers more in this group
See all 30 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.