The response of photosystem I to fluctuating light is influenced by leaf nitrogen content in tomato

doi:10.1016/j.envexpbot.2021.104665

KIB OpenIR

	The response of photosystem I to fluctuating light is influenced by leaf nitrogen content in tomato
	Sun,Hu ; Shi,Qi ; Zhang,Shi-Bao ; Huang,Wei
	2022
发表期刊	ENVIRONMENTAL AND EXPERIMENTAL BOTANY
ISSN	0098-8472
卷号	193 页码:104665
摘要	Fluctuating light and nitrogen (N) deficiency can occur synchronously under natural growth conditions. How-ever, little is known about the photosynthetic regulation under fluctuating light in plants grown with N deficiency. In the present study, we examined the effect of N supply on the response of photosystem I (PSI) to fluctuating light in tomato. Plants grown under high N concentration (HN-plants) had higher leaf N content, chlorophyll content and saturating CO2 assimilation rate than plants grown under middle and low N concentrations (MN- and LN-plants). After an abrupt increase in illumination for 10 s, all plants could not generate a sufficient proton gradient (Delta pH). Meanwhile, PSI was over-reduced in HN-and MN-plants but was highly oxidized in LN-plants. In LN-plants, the smallest PSII electron flow avoided an over-reduction of PSI under fluctuating light. After transition from low to high light, CEF gradually increased to the peak in 30 s in HN-plants but rapidly increased to the peak in 10 s in MN-plants. Such delayed activation of CEF in HN-plants accelerated the over-reduction of PSI. After fluctuating light treatment, HN-plants displayed the greatest PSI photoinhibition, followed by MN-and LN-plants. These results indicated that leaf N content significantly affected the response of PSI to fluctuating light in tomato.
关键词	Chlorophyll fluorescence Cyclic electron flow Photosynthesis Photoinhibition PSI redox state CYCLIC ELECTRON FLOW PROTON MOTIVE FORCE CO2 ASSIMILATION REGULATORY NETWORK PLANT-GROWTH TRANSPORT PHOTOSYNTHESIS ATP ENERGY PHOTOPROTECTION
DOI	10.1016/j.envexpbot.2021.104665
WOS记录号	WOS:000702923000001
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/73057
专题	中国科学院昆明植物研究所
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, Kunming 650201, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Sun,Hu,Shi,Qi,Zhang,Shi-Bao,et al. The response of photosystem I to fluctuating light is influenced by leaf nitrogen content in tomato[J]. ENVIRONMENTAL AND EXPERIMENTAL BOTANY,2022,193:104665.
APA	Sun,Hu,Shi,Qi,Zhang,Shi-Bao,&Huang,Wei.(2022).The response of photosystem I to fluctuating light is influenced by leaf nitrogen content in tomato.ENVIRONMENTAL AND EXPERIMENTAL BOTANY,193,104665.
MLA	Sun,Hu,et al."The response of photosystem I to fluctuating light is influenced by leaf nitrogen content in tomato".ENVIRONMENTAL AND EXPERIMENTAL BOTANY 193(2022):104665.