Abstract
Low temperature limits the photochemical efficiency of photosystems in wheat plants. To test the effect of salt priming on the photosynthetic electron transport in wheat under low temperature, the germinating seeds of a winter wheat cv. Jimai44 were primed with varying concentrations of NaCl solutions (0, 10, 30, and 50 mM NaCl, indicated by S0, S10, S30, and S50, respectively) for 6 d, and after 11 d of recovery, the seedlings were subsequently exposed to 24-h low-temperature stress (2 °C). Under low temperature, the S30 plants possessed the highest absorption flux per reaction center and higher density of reaction center per cross-section among the treatments. In addition, S30 plants had higher trapped energy flux for reducing QA and fraction of QA-reducing reaction centers and non-QB reducing center than the non-primed plants under low temperature, indicating that S30 plants could maintain the energy balance of photosystems and a relatively higher maximum quantum efficiency of photosystem II under low temperature. In addition, the low temperature-induced MDA accumulation and cell death were alleviated by salt priming in S30 plants. It was suggested that salt priming with an optimal concentration of NaCl solution (30 mM) during seed germination enhanced the photochemical efficiency of photosystems in wheat seedlings, which could be a potential approach to improve cold tolerance in wheat at an early stage.
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Claims 6
Claim · model-written summary
Salt priming (S30) gave wheat plants the highest absorption flux per reaction center among the treatments under low temperature.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- S30e1
- Outcome
- absorption flux per reaction centere1
- Direction
- higheste1
- Comparator
- among the treatmentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“photosystems in wheat plants”
e1“the S30 plants possessed the highest absorption flux per reaction center and higher density of reaction center per cross-section among the treatments”
Claim · model-written summary
Salt priming (S30) gave wheat plants a higher density of reaction centers per cross-section among the treatments under low temperature.
- Taxon
- wheatTriticum aestivume0
- Treatment
- S30e1
- Outcome
- density of reaction center per cross-sectione1
- Direction
- highere1
- Comparator
- among the treatmentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“photosystems in wheat plants”
e1“the S30 plants possessed the highest absorption flux per reaction center and higher density of reaction center per cross-section among the treatments”
Claim · model-written summary
S30 wheat plants had higher trapped energy flux for reducing QA, fraction of QA-reducing reaction centers and non-QB reducing centers than non-primed plants under low temperature.
- Taxon
- wheatTriticum aestivume0
- Treatment
- S30e2
- Outcome
- trapped energy flux for reducing QA and fraction of QA-reducing reaction centers and non-QB reducing centere2
- Direction
- highere2
- Comparator
- non-primed plantse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“photosystems in wheat plants”
e2“S30 plants had higher trapped energy flux for reducing QA and fraction of QA-reducing reaction centers and non-QB reducing center than the non-primed plants under low temperature”
Claim · model-written summary
S30 wheat plants had a relatively higher maximum quantum efficiency of photosystem II than non-primed plants under low temperature.
- Taxon
- wheatTriticum aestivume0
- Treatment
- S30e2
- Outcome
- maximum quantum efficiency of photosystem IIe2
- Direction
- relatively highere2
- Comparator
- non-primed plantse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“photosystems in wheat plants”
e2“S30 plants could maintain the energy balance of photosystems and a relatively higher maximum quantum efficiency of photosystem II under low temperature”
e3“than the non-primed plants under low temperature”
Claim · model-written summary
Salt priming alleviated low temperature-induced MDA accumulation and cell death in S30 wheat plants.
- Taxon
- wheatTriticum aestivume0
- Treatment
- salt priminge4
- Outcome
- MDA accumulation and cell deathe4
- Direction
- alleviatede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“photosystems in wheat plants”
e4“the low temperature-induced MDA accumulation and cell death were alleviated by salt priming in S30 plants”
Claim · model-written summary
Salt priming during seed germination could be a potential approach to improve cold tolerance in wheat at an early stage.
- Taxon
- wheatTriticum aestivume0
- Outcome
- cold tolerancee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“photosystems in wheat plants”
e5“which could be a potential approach to improve cold tolerance in wheat at an early stage”
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