Responses of Ottelia alismoides, an aquatic plant with three CCMs, to variable CO2 and light

doi:10.1093/jxb/erx064

CORC > 武汉植物园 > 中国科学院武汉植物园

	Responses of Ottelia alismoides, an aquatic plant with three CCMs, to variable CO2 and light
	Shao, Hui 2; Gontero, Brigitte 3; Maberly, Stephen C.1; Jiang, Hong Sheng 2,3; Cao, Yu 2,4; Li, Wei 2,4; Huang, Wen Min 2,4
刊名	JOURNAL OF EXPERIMENTAL BOTANY
	2017-06-01
卷号	68 期号:14 页码:3985-3995
关键词	Aquatic plant C-4 CAM CCMs PEPC photosynthesis PPDK Rubisco starch
ISSN号	0022-0957
DOI	10.1093/jxb/erx064
英文摘要	Ottelia alismoides is a constitutive C-4 plant and bicarbonate user, and has facultative crassulacean acid metabolism (CAM) at low CO2. Acclimation to a factorial combination of light and CO2 showed that the ratio of phosphoenolpyruvate carboxylase (PEPC) to ribulose-bisphosphate carboxylase/oxygenase (Rubisco) (> 5) is in the range of that of C-4 plants. This and short-term response experiments showed that the activity of PEPC and pyruvate phosphate dikinase (PPDK) was high even at the end of the night, consistent with night-time acid accumulation and daytime carbon fixation. The diel acidity change was maximal at high light and low CO2 at 17-25 mu equiv g(-1) FW. Decarboxylation proceeded at similar to 2-3 mu equiv g(-1) FW h(-1), starting at the beginning of the photoperiod, but did not occur at high CO2; the rate was greater at high, compared with low light. There was an inverse relationship between starch formation and acidity loss. Acidity changes account for up to 21% of starch production and stimulate early morning photosynthesis, but night-time accumulation of acid traps < 6% of respiratory carbon release. Ottelia alismoides is the only known species to operate CAM and C-4 in the same tissue, and one of only two known aquatic species to operate CAM and bicarbonate use.
资助项目	Chinese Academy of Sciences President's International Fellowship Initiative[2015VBA023] ; Chinese Academy of Sciences President's International Fellowship Initiative[2016VBA006] ; National Key Research and Development Program of China[2016YFA0601000] ; National Scientific Foundation of China[31460089]
WOS研究方向	Plant Sciences
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:000410239600025
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/1356]
专题	中国科学院武汉植物园
通讯作者	Huang, Wen Min
作者单位	1.Lancaster Environm Ctr, Lake Ecosyst Grp, Ctr Ecol & Hydrol, Lib Ave, Lancaster LA1 4AP, England 2.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Hubei, Peoples R China 3.Aix Marseille Univ, CNRS, BIP UMR 7281, IMM,FR 3479, 31 Chemin Joseph Aiguier, F-13402 Marseille 20, France 4.Chinese Acad Sci, Wuhan Bot Garden, Hubei Key Lab Wetland Evolut & Ecol Restorat, Wuhan 430074, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Shao, Hui,Gontero, Brigitte,Maberly, Stephen C.,et al. Responses of Ottelia alismoides, an aquatic plant with three CCMs, to variable CO2 and light[J]. JOURNAL OF EXPERIMENTAL BOTANY,2017,68(14):3985-3995.
APA	Shao, Hui.,Gontero, Brigitte.,Maberly, Stephen C..,Jiang, Hong Sheng.,Cao, Yu.,...&Huang, Wen Min.(2017).Responses of Ottelia alismoides, an aquatic plant with three CCMs, to variable CO2 and light.JOURNAL OF EXPERIMENTAL BOTANY,68(14),3985-3995.
MLA	Shao, Hui,et al."Responses of Ottelia alismoides, an aquatic plant with three CCMs, to variable CO2 and light".JOURNAL OF EXPERIMENTAL BOTANY 68.14(2017):3985-3995.