Was low CO2 a driving force of C4 evolution: Arabidopsis responses to long-term low CO2 stress

被引：46

作者：

Li, Yuanyuan ^{[1
,2
,3
]}

Xu, Jiajia ^{[1
,2
,3
]}

Ul Haq, Noor ^{[2
,3
]}

Zhang, Hui ^{[2
,3
,4
]}

Zhu, Xin-Guang ^{[1
,2
,3
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Biol Sci, State Key Lab Hybrid Rice Res, Shanghai 200031, Peoples R China

[2] Chinese Acad Sci, Key Lab Computat Biol, Shanghai 200031, Peoples R China

[3] Chinese Acad Sci, Partner Inst Computat Biol, Shanghai 200031, Peoples R China

[4] Shandong Normal Univ, Jinan 250014, Shandong, Peoples R China

来源：

JOURNAL OF EXPERIMENTAL BOTANY | 2014年 / 65卷 / 13期

基金：

中国国家自然科学基金;

关键词：

Arabidopsis; C-4; photosynthesis; evolution; low CO2; photorespiration; stress responses; GATA TRANSCRIPTION FACTORS; ATMOSPHERIC CO2; ELEVATED CO2; PHOSPHOENOLPYRUVATE CARBOXYLASE; CHLOROPLAST DEVELOPMENT; FUNCTIONAL-ANALYSIS; MUTAGENIC REPAIR; CARBON-DIOXIDE; STOMATAL SIZE; GENE;

D O I：

10.1093/jxb/eru193

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The responses of long-term growth of plants under elevated CO2 have been studied extensively. Comparatively, the responses of plants to subambient CO2 concentrations have not been well studied. This study aims to investigate the responses of the model C-3 plant, Arabidopsis thaliana, to low CO2 at the molecular level. Results showed that low CO2 dramatically decreased biomass productivity, together with delayed flowering and increased stomatal density. Furthermore, alteration of thylakoid stacking in both bundle sheath and mesophyll cells, upregulation of PEPC and PEPC-K together with altered expression of a number of regulators known involved in photosynthesis development were observed. These responses to low CO2 are discussed with regard to the fitness of C-3 plants under low CO2. This work also briefly discusses the relevance of the data to C-4 photosynthesis evolution.

引用

页码：3657 / 3667

页数：11

共 66 条

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