Chloroplast ATP synthase restricts photosynthesis under fluctuating light in tomato but not in maize

doi:10.1016/j.plaphy.2024.109115

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	Chloroplast ATP synthase restricts photosynthesis under fluctuating light in tomato but not in maize
	Li, Yi-Yun; Wang, Xiao-Qian; Yang, Ying-Jie; Huang, Wei
	2024
发表期刊	PLANT PHYSIOLOGY AND BIOCHEMISTRY
ISSN	0981-9428
卷号	216 页码:109115
摘要	Photosynthesis in fluctuating light requires coordinated adjustments of diffusion conductance and biochemical capacity, but the role of chloroplast ATP synthase activity (g(H)(+)) in dynamic photosynthesis is not well understood. In this study, we measured gas exchange, chlorophyll fluorescence and electrochromic shift signals in fluctuating light for leaves of tomato (Solanum lycopersicum) and maize (Zea mays). During the transition from sun to shade, simultaneous increases in g(H)(+), effective quantum yield of PSII, and net CO2 assimilation rate (A(N)) occurred in tomato but uncoupled in maize, indicating that g(H) (+) limited A(N) during the sun-to-shade transition in tomato but not in maize. During the shade-to-sun transition, g(H) (+) increased simultaneously with stomatal conductance, mesophyll conductance and Rubisco carboxylation capacity in tomato, suggesting that g(H)(+) is an overlooked factor affecting light induction of A(N) in tomato. By comparison, g(H) (+) maintained at high levels in maize and its A(N) was mainly restricted by stomatal conductance. Our results reveal that the kinetics of g(H)(+) in fluctuating light differs between species, and chloroplast ATP synthase may be a potential target for improving dynamic photosynthesis in crops such as tomato.
DOI	10.1016/j.plaphy.2024.109115
WOS记录号	WOS:001314024400001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/76055
专题	中国科学院昆明植物研究所
推荐引用方式 GB/T 7714	Li, Yi-Yun,Wang, Xiao-Qian,Yang, Ying-Jie,et al. Chloroplast ATP synthase restricts photosynthesis under fluctuating light in tomato but not in maize[J]. PLANT PHYSIOLOGY AND BIOCHEMISTRY,2024,216:109115.
APA	Li, Yi-Yun,Wang, Xiao-Qian,Yang, Ying-Jie,&Huang, Wei.(2024).Chloroplast ATP synthase restricts photosynthesis under fluctuating light in tomato but not in maize.PLANT PHYSIOLOGY AND BIOCHEMISTRY,216,109115.
MLA	Li, Yi-Yun,et al."Chloroplast ATP synthase restricts photosynthesis under fluctuating light in tomato but not in maize".PLANT PHYSIOLOGY AND BIOCHEMISTRY 216(2024):109115.

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