Abstract
Low temperature events can induce lasting growth limitations in wheat, impacting the final grain yield, but trade-offs of leaf functional traits in this process remain unclear. To address this issue, we investigated the relative biomass accumulation rate and leaf functional traits throughout the ‘low temperature stress-short recovery-long recovery’ process in wheat. Key leaf functional traits, including leaf dry mass per area, leaf nitrogen, and photosynthetic rate per unit mass were increased under low temperature. Their network relationships contribute to enhanced growth responses during short-term recovery. However, decreased leaf nitrogen and phosphorus, photosynthetic rate per unit mass , and increased dark respiration per unit mass at the 6-leaf stage, coupled with subsequent lower growth responses during long-term recovery, indicate that the irreversible detrimental impact of low temperature becomes apparent after a long recovery stage post the cession of low temperature stress. Changes in photosynthesis capacity during low temperature and the recovery period are influenced by leaf nutrients, CO 2 fractionation, and photosynthesis biochemistry. These factors are closely related to the coordination of leaf anatomy, thylakoid electron transport, and enzyme activities in wheat. Quantifying key leaf functional traits and understanding their network relationships provide important insights for evaluating crop responses to environmental temperature alterations.
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Claims 8
Claim · model-written summary
Leaf dry mass per area, leaf nitrogen and photosynthetic rate per unit mass increased under low temperature.
- Taxon
- wheat
Triticum aestivumt0 - Organ / stage
- leafe1
- Treatment
- low temperaturee1
- Outcome
- leaf dry mass per area, leaf nitrogen, and photosynthetic rate per unit masse1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“growth limitation in wheat caused by low temperature stress”
e1“Key leaf functional traits, including leaf dry mass per area, leaf nitrogen, and photosynthetic rate per unit mass were increased under low temperature”
Claim · model-written summary
Network relationships among leaf traits contribute to enhanced growth responses during short-term recovery.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- enhanced growth responses during short-term recoverye2
- Qualifier
- network relationshipse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“growth limitation in wheat caused by low temperature stress”
e2“Their network relationships contribute to enhanced growth responses during short-term recovery”
Claim · model-written summary
Leaf nitrogen, phosphorus and photosynthetic rate per unit mass decreased at the 6-leaf stage under low temperature.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- 6-leaf stagee3
- Treatment
- low temperaturee4
- Outcome
- leaf nitrogen and phosphorus, photosynthetic rate per unit masse3
- Direction
- decreasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“growth limitation in wheat caused by low temperature stress”
e3“decreased leaf nitrogen and phosphorus, photosynthetic rate per unit mass , and increased dark respiration per unit mass at the 6-leaf stage, coupled with subsequent lower growth responses during long-term recovery”
e4“irreversible detrimental impact of low temperature becomes apparent after a long recovery stage post the cession of low temperature stress”
Claim · model-written summary
Dark respiration per unit mass increased at the 6-leaf stage under low temperature.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- 6-leaf stagee3
- Treatment
- low temperaturee4
- Outcome
- dark respiration per unit masse3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“growth limitation in wheat caused by low temperature stress”
e3“decreased leaf nitrogen and phosphorus, photosynthetic rate per unit mass , and increased dark respiration per unit mass at the 6-leaf stage, coupled with subsequent lower growth responses during long-term recovery”
e4“irreversible detrimental impact of low temperature becomes apparent after a long recovery stage post the cession of low temperature stress”
Claim · model-written summary
Growth responses during long-term recovery were lower after low temperature stress.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- low temperaturee4
- Outcome
- growth responses during long-term recoverye3
- Direction
- lowere3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“growth limitation in wheat caused by low temperature stress”
e3“decreased leaf nitrogen and phosphorus, photosynthetic rate per unit mass , and increased dark respiration per unit mass at the 6-leaf stage, coupled with subsequent lower growth responses during long-term recovery”
e4“irreversible detrimental impact of low temperature becomes apparent after a long recovery stage post the cession of low temperature stress”
Claim · model-written summary
The irreversible detrimental impact of low temperature becomes apparent only after a long recovery stage.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- low temperature stresse4
- Outcome
- irreversible detrimental impact of low temperaturee4
- Qualifier
- after a long recovery stagee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“growth limitation in wheat caused by low temperature stress”
e4“irreversible detrimental impact of low temperature becomes apparent after a long recovery stage post the cession of low temperature stress”
Claim · model-written summary
Changes in photosynthesis capacity during low temperature and recovery are influenced by leaf nutrients, CO2 fractionation and photosynthesis biochemistry.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- Changes in photosynthesis capacitye5
- Qualifier
- leaf nutrients, CO 2 fractionation, and photosynthesis biochemistrye5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“growth limitation in wheat caused by low temperature stress”
e5“Changes in photosynthesis capacity during low temperature and the recovery period are influenced by leaf nutrients, CO 2 fractionation, and photosynthesis biochemistry”
Claim · model-written summary
The coordination of leaf anatomy, thylakoid electron transport and enzyme activities is closely related to the factors governing photosynthesis in wheat.
- Taxon
- wheatTriticum aestivume6
- Outcome
- coordination of leaf anatomy, thylakoid electron transport, and enzyme activitiese6
- Qualifier
- closely relatede6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“These factors are closely related to the coordination of leaf anatomy, thylakoid electron transport, and enzyme activities in wheat”
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