干旱区生态环境知识资源中心(Arid): Photosynthesis and yield response to elevated CO2, C-4 plant foxtail millet behaves similarly to C-3 species

Arid

DOI	10.1016/j.plantsci.2019.05.006
	Photosynthesis and yield response to elevated CO2, C-4 plant foxtail millet behaves similarly to C-3 species
	Li, Ping 1,2; Li, Bingyan 1; Seneweera, Saman 3; Zong, Yuzheng 1; Li, Frank Yonghong 1,4; Han, Yuanhuai 1,2,5; Hao, Xingyu 1
通讯作者	Hao, Xingyu
来源期刊	PLANT SCIENCE
ISSN	0168-9452
出版年	2019
卷号	285 页码:239-247
英文摘要	Foxtail millet (Setaria italica) is a nutrient-rich food source traditionally grown in arid and semi-arid areas, as it is well adapted to drought climate. Yet there is limited information as how the crop responses to the changing climate. In order to investigate the response of foxtail millet to elevated [CO2] and the underlying mechanism, the crop was grown at ambient [CO2] (400 mu mol mol(-1)) and elevated [CO2] (600 mu mol mol(-1)) in an open-top chamber (OTC) experimental facility in North China. The changes in leaf photosynthesis, chlorophyll fluorescence, biomass, yield and global gene expression in response to elevated [CO2] were determined. Despite foxtail millet being a C-4 photosynthetic crop, photosynthetic rates (P-N) and intrinsic water-use efficiency (WUEi), were increased under elevated [CO2]. Similarly, grain yield and above-ground biomass also significantly increased (P < 0.05) for the two years of experimentation under elevated [CO2]. Increases in seeds and tiller number, spike and stem weight were the main contributors to the increased grain yield and biomass. Using transcriptomic analyses, this study further identified some genes which play a role in cell wall reinforcement, shoot initiation, stomatal conductance, carbon fixation, glycolysis / gluconeogenesis responsive to elevated [CO2]. Changes in these genes reduced plant height, increased stem diameters, and promote CO2 fixation. Higher photosynthetic rates at elevated [CO2] demonstrated that foxtail millet was not photosynthetically saturated at elevated [CO2] and its photosynthesis response to elevated [CO2] were analogous to C-3 plants.
英文关键词	Elevated [CO2] Foxtail millet Photosynthesis Yield Gene expression
类型	Article
语种	英语
国家	Peoples R China ; Sri Lanka
收录类别	SCI-E
WOS记录号	WOS:000474326500024
WOS关键词	WATER-USE EFFICIENCY ; CLIMATE-CHANGE IMPACTS ; GENE-EXPRESSION ; STOMATAL CONDUCTANCE ; GROWTH-RESPONSE ; ASPEN TREES ; DROUGHT ; INCREASES ; LEAVES ; MAIZE
WOS类目	Biochemistry & Molecular Biology ; Plant Sciences
WOS研究方向	Biochemistry & Molecular Biology ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218051
作者单位	1.Shanxi Agr Univ, Coll Agr, Taigu 030801, Peoples R China; 2.Shanxi Key Lab Genet Resources & Genet Improvemen, Taigu 030801, Shanxi, Peoples R China; 3.Natl Inst Fundamental Studies, Kandy 20000, Sri Lanka; 4.Inner Mongolia Univ, Coll Life Sci, Ecol, Huhehot 010021, Sri Lanka; 5.Minist Agr, Key Lab Crop Gene Resources & Germplasm Enhanceme, Taiyuan 030031, Shanxi, Peoples R China
推荐引用方式 GB/T 7714	Li, Ping,Li, Bingyan,Seneweera, Saman,et al. Photosynthesis and yield response to elevated CO2, C-4 plant foxtail millet behaves similarly to C-3 species[J],2019,285:239-247.
APA	Li, Ping.,Li, Bingyan.,Seneweera, Saman.,Zong, Yuzheng.,Li, Frank Yonghong.,...&Hao, Xingyu.(2019).Photosynthesis and yield response to elevated CO2, C-4 plant foxtail millet behaves similarly to C-3 species.PLANT SCIENCE,285,239-247.
MLA	Li, Ping,et al."Photosynthesis and yield response to elevated CO2, C-4 plant foxtail millet behaves similarly to C-3 species".PLANT SCIENCE 285(2019):239-247.