The acclimation of leaf photosynthesis of wheat and rice to seasonal temperature changes in T-FACE environments

The acclimation of leaf photosynthesis of wheat and rice to seasonal temperature changes in T-FACE environments

© 2019 John Wiley & Sons Ltd.

Bibliographische Detailangaben
Veröffentlicht in:Global change biology. - 1999. - 26(2020), 2 vom: 01. Feb., Seite 539-556
1. Verfasser: Cai, Chuang (VerfasserIn)
Weitere Verfasser: Li, Gang, Di, Lijun, Ding, Yunjie, Fu, Lin, Guo, Xuanhe, Struik, Paul C, Pan, Genxing, Li, Haozheng, Chen, Weiping, Luo, Weihong, Yin, Xinyou
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:Global change biology
Schlagworte:Journal Article Oryza sativa L. Triticum aestivum L. climate change free-air CO2 enrichment growth temperature leaf nitrogen content photosynthesis model stomatal conductance Carbon Dioxide 142M471B3J
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520 |a Crops show considerable capacity to adjust their photosynthetic characteristics to seasonal changes in temperature. However, how photosynthesis acclimates to changes in seasonal temperature under future climate conditions has not been revealed. We measured leaf photosynthesis (An ) of wheat (Triticum aestivum L.) and rice (Oryza sativa L.) grown under four combinations of two levels of CO2 (ambient and enriched up to 500 µmol/mol) and two levels of canopy temperature (ambient and increased by 1.5-2.0°C) in temperature by free-air CO2 enrichment (T-FACE) systems. Parameters of a biochemical C3 -photosynthesis model and of a stomatal conductance (gs ) model were estimated for the four conditions and for several crop stages. Some biochemical parameters related to electron transport and most gs parameters showed acclimation to seasonal growth temperature in both crops. The acclimation response did not differ much between wheat and rice, nor among the four treatments of the T-FACE systems, when the difference in the seasonal growth temperature was accounted for. The relationships between biochemical parameters and leaf nitrogen content were consistent across leaf ranks, developmental stages, and treatment conditions. The acclimation had a strong impact on gs model parameters: when parameter values of a particular stage were used, the model failed to correctly estimate gs values of other stages. Further analysis using the coupled gs -biochemical photosynthesis model showed that ignoring the acclimation effect did not result in critical errors in estimating leaf photosynthesis under future climate, as long as parameter values were measured or derived from data obtained before flowering 
650 4 |a Journal Article 
650 4 |a Oryza sativa L. 
650 4 |a Triticum aestivum L. 
650 4 |a climate change 
650 4 |a free-air CO2 enrichment 
650 4 |a growth temperature 
650 4 |a leaf nitrogen content 
650 4 |a photosynthesis model 
650 4 |a stomatal conductance 
650 7 |a Carbon Dioxide  |2 NLM 
650 7 |a 142M471B3J  |2 NLM 
700 1 |a Li, Gang  |e verfasserin  |4 aut 
700 1 |a Di, Lijun  |e verfasserin  |4 aut 
700 1 |a Ding, Yunjie  |e verfasserin  |4 aut 
700 1 |a Fu, Lin  |e verfasserin  |4 aut 
700 1 |a Guo, Xuanhe  |e verfasserin  |4 aut 
700 1 |a Struik, Paul C  |e verfasserin  |4 aut 
700 1 |a Pan, Genxing  |e verfasserin  |4 aut 
700 1 |a Li, Haozheng  |e verfasserin  |4 aut 
700 1 |a Chen, Weiping  |e verfasserin  |4 aut 
700 1 |a Luo, Weihong  |e verfasserin  |4 aut 
700 1 |a Yin, Xinyou  |e verfasserin  |4 aut 
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773 1 8 |g volume:26  |g year:2020  |g number:2  |g day:01  |g month:02  |g pages:539-556 
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