Reduced mesophyll conductance induces photosynthetic acclimation of japonica rice under elevated CO2

doi:10.1016/j.envexpbot.2021.104590

	Reduced mesophyll conductance induces photosynthetic acclimation of japonica rice under elevated CO2
	Yang, Kai 1; Yang, Jingrui 1; Lv, Chunhua 1; Cao, Peipei 1; Deng, Xi 1; Wang, Yijie 1; Sun, Wenjuan ; Yu, Lingfei ; Hu, Zhenghua 2; Huang, Yao1
	2021
发表期刊	ENVIRONMENTAL AND EXPERIMENTAL BOTANY
ISSN	0098-8472
卷号	190
摘要	The foliar photosynthetic acclimation to prolonged elevated CO2 has been studied in many ways, but the quantification of photosynthetic acclimation through the limitation of stomatal conductance (g(s)), mesophyll conductance (g(m)) and biochemical capacity (V-camx) is scarce. To quantify photosynthetic acclimation under elevated CO2, a japonica rice cultivar 'Nanjing 9108' was grown at two CO2 levels-ambient CO2 (a[CO2]) and a [CO2] +200 mu mol mol(-1) (e[CO2]) using open top chamber facility. We measured the response of net photosynthetic rate (A(n)) to CO2 at Rubisco (C-c) at jointing, flowering and filling stages based a biochemical C3-photosynthesis model. Measurements at the same CO2 concentration showed that the A(n), under e[CO2] was significantly lower than that under a[CO2] at three developmental stages, suggesting the occurrence of acclimation of photosynthesis. The photosynthetic acclimation is associated with the decrease in g(m), g(s) and V-cmax, and g(m) mainly limits photosynthesis. The contribution of g(m), g(s) and V-camx limitation to photosynthetic acclimation averaged 65 %, 25 % and 10 % of the total reduction in A(n). Our findings demonstrate g(m) is the major driver of photosynthetic acclimation and highlight the role of g(m) under e[CO2] in rice.
关键词	Elevated CO2 Japonica rice Limitation Mesophyll conductance Photosynthetic acclimation Quantification
学科领域	Plant Sciences ; Environmental Sciences
DOI	10.1016/j.envexpbot.2021.104590
收录类别	SCI
语种	英语
WOS关键词	WHEAT TRITICUM-AESTIVUM ; RIBULOSE-1,5-BISPHOSPHATE CARBOXYLATION LIMITATION ; TEMPERATURE RESPONSE FUNCTIONS ; ATMOSPHERIC CARBON-DIOXIDE ; LONG-TERM EXPOSURE ; DIFFUSION CONDUCTANCE ; GAS-EXCHANGE ; CHLOROPHYLL FLUORESCENCE ; STOMATAL CONDUCTANCE ; INTERNAL CONDUCTANCE
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000696736200001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
文献子类	Article
出版地	OXFORD
EISSN	1873-7307
资助机构	National Natural Science Foundation of China [41530533]
作者邮箱	huangyao@ibcas.ac.cn
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/26651
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Nanjing Univ Informat Sci & Technol, Sch Appl Meteorol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing, Peoples R China
推荐引用方式 GB/T 7714	Yang, Kai,Yang, Jingrui,Lv, Chunhua,et al. Reduced mesophyll conductance induces photosynthetic acclimation of japonica rice under elevated CO2[J]. ENVIRONMENTAL AND EXPERIMENTAL BOTANY,2021,190.
APA	Yang, Kai.,Yang, Jingrui.,Lv, Chunhua.,Cao, Peipei.,Deng, Xi.,...&Huang, Yao.(2021).Reduced mesophyll conductance induces photosynthetic acclimation of japonica rice under elevated CO2.ENVIRONMENTAL AND EXPERIMENTAL BOTANY,190.
MLA	Yang, Kai,et al."Reduced mesophyll conductance induces photosynthetic acclimation of japonica rice under elevated CO2".ENVIRONMENTAL AND EXPERIMENTAL BOTANY 190(2021).

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