Multiyear CO2 elevation improves PSII efficiency in a japonica rice cultivar

doi:10.1002/csc2.20642

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	Multiyear CO2 elevation improves PSII efficiency in a japonica rice cultivar
	Lv, Chunhua 3; Huang, Yao 3; Yang, Kai 3; Yang, Jingrui 3; Cao, Peipei 3; Hu, Zhenghua 2; Sun, Wenjuan ; Yu, Lingfei
刊名	CROP SCIENCE
	2022
卷号	62 期号:1 页码:346-357
ISSN号	0011-183X
DOI	10.1002/csc2.20642
文献子类	Article
英文摘要	Responses of crop photosystem activity to the short-term elevation of carbon dioxide concentration ([CO2]) have been studied extensively. However, long-term effects of elevated [CO2] (e[CO2]) over multiple cropping generations have received little attention. Using open-top chambers (OTCs), we set up ambient [CO2] (CK) and two multigeneration e[CO2] treatments during rice (Oryza sativa L.) growing seasons in 2016-2019: a stepwise increase (SI) up to +160 mu mol mol(-1) in 2019 and a constant increase (CI) of +200 mu mol mol(-1) above CK over four generations. Beginning in 2017, grains harvested from the previous year in different [CO2] treatments were used as seeds. Seedlings derived from CK OTCs in 2018 were transplanted into both SI and CI OTCs in 2019 to simulate single-generation abrupt elevation of [CO2]. We measured the diurnal changes in photosystem II (PSII) functionality of leaves in 2019. Single-generation elevation of [CO2] had no effects on PSII efficiency. However, a stepwise increase of [CO2] over four generations significantly enhanced predawn maximum photochemical efficiency of PSII (F-v/F-m), the efficiency that trapped exciton moves an electron beyond Q(A)(-) (psi(o)), and the quantum yield of electron transport (phi E-o) in PSII at jointing stage. The constant increase of [CO2] over four generations dramatically improved predawn F-v/F-m, psi(o), phi E-o, perform index, and reaction center at grain-filling stage. Moreover, the multigeneration elevation of [CO2] weakened the depression of F-v/F-m relative to single-generation elevation at midday. All of these results indicated that e[CO2] had transgenerational effects on PSII functionality.
学科主题	Agronomy
电子版国际标准刊号	1435-0653
出版地	HOBOKEN
WOS关键词	CHLOROPHYLL FLUORESCENCE ; ATMOSPHERIC CO2 ; ABIOTIC STRESS ; CARBON-DIOXIDE ; ORYZA-SATIVA ; PHOTOSYNTHESIS ; GROWTH ; TEMPERATURE ; RESPONSES ; NITROGEN
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	WILEY
WOS记录号	WOS:000735410500001
资助机构	National Natural Science Foundation of China [41530533]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/28597]
专题	植被与环境变化国家重点实验室
作者单位	1.Nanjing Univ Informat Sci & Technol, Sch Appl Meteorol, Nanjing, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, State Key Lab Vegetat & Environm Change, Inst Bot, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Lv, Chunhua,Huang, Yao,Yang, Kai,et al. Multiyear CO2 elevation improves PSII efficiency in a japonica rice cultivar[J]. CROP SCIENCE,2022,62(1):346-357.
APA	Lv, Chunhua.,Huang, Yao.,Yang, Kai.,Yang, Jingrui.,Cao, Peipei.,...&Yu, Lingfei.(2022).Multiyear CO2 elevation improves PSII efficiency in a japonica rice cultivar.CROP SCIENCE,62(1),346-357.
MLA	Lv, Chunhua,et al."Multiyear CO2 elevation improves PSII efficiency in a japonica rice cultivar".CROP SCIENCE 62.1(2022):346-357.