Photosynthetic Induction Under Fluctuating Light Is Affected by Leaf Nitrogen Content in Tomato

doi:10.3389/fpls.2022.835571

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	Photosynthetic Induction Under Fluctuating Light Is Affected by Leaf Nitrogen Content in Tomato
	Sun, Hu; Zhang, Yu-Qi; Zhang, Shi-Bao; Huang, Wei
	2022
发表期刊	FRONTIERS IN PLANT SCIENCE
卷号	13 页码:835571
摘要	The response of photosynthetic CO2 assimilation to changes of illumination affects plant growth and crop productivity under natural fluctuating light conditions. However, the effects of nitrogen (N) supply on photosynthetic physiology after transition from low to high light are seldom studied. To elucidate this, we measured gas exchange and chlorophyll fluorescence under fluctuating light in tomato (Solanum lycopersicum) seedlings grown with different N conditions. After transition from low to high light, the induction speeds of net CO2 assimilation (A(N)), stomatal conductance (g(s)), and mesophyll conductance (g(m)) delayed with the decline in leaf N content. The time to reach 90% of maximum A(N), g(s) and g(m) was negatively correlated with leaf N content. This delayed photosynthetic induction in plants grown under low N concentration was mainly caused by the slow induction response of g(m) rather than that of g(s). Furthermore, the photosynthetic induction upon transfer from low to high light was hardly limited by photosynthetic electron flow. These results indicate that decreased leaf N content declines carbon gain under fluctuating light in tomato. Increasing the induction kinetics of g(m) has the potential to enhance the carbon gain of field crops grown in infertile soil.
关键词	fluctuating light nitrogen photosynthesis mesophyll conductance photosynthetic limitation MESOPHYLL CONDUCTANCE CO2 ASSIMILATION CHARACTERISTICS EXPLAIN STOMATAL CONDUCTANCE ELECTRON-TRANSPORT BIOMASS PRODUCTION LIMITATIONS LEAVES CAPACITY GROWTH
DOI	10.3389/fpls.2022.835571
收录类别	SCI
WOS记录号	WOS:000764537200001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/75630
专题	中国科学院昆明植物研究所
推荐引用方式 GB/T 7714	Sun, Hu,Zhang, Yu-Qi,Zhang, Shi-Bao,et al. Photosynthetic Induction Under Fluctuating Light Is Affected by Leaf Nitrogen Content in Tomato[J]. FRONTIERS IN PLANT SCIENCE,2022,13:835571.
APA	Sun, Hu,Zhang, Yu-Qi,Zhang, Shi-Bao,&Huang, Wei.(2022).Photosynthetic Induction Under Fluctuating Light Is Affected by Leaf Nitrogen Content in Tomato.FRONTIERS IN PLANT SCIENCE,13,835571.
MLA	Sun, Hu,et al."Photosynthetic Induction Under Fluctuating Light Is Affected by Leaf Nitrogen Content in Tomato".FRONTIERS IN PLANT SCIENCE 13(2022):835571.

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