Phosphoenolpyruvate carboxylase in the stem of the submersed species Egeria densa may be involved in an inducible C-4-like mechanism
文献类型：期刊论文
| 作者 | Yin, Li-yan2; Wang, Qing-feng1,3; Gu, Shuping1,2,4 |
| 刊名 | AQUATIC BOTANY
 |
| 出版日期 | 2015-08-01 |
| 卷号 | 125页码:1-8 |
| 关键词 | Egeria densa Phosphoenolpyruvate carboxylase C-4 pathway Stem photosynthesis Low CO2 |
| ISSN号 | 0304-3770 |
| DOI | 10.1016/j.aquabot.2015.04.002 |
| 英文摘要 | The submersed species Egeria densa possesses an inducible C-4-like photosynthetic system after exposure to low CO2 concentrations. Four full-length and one partial cDNAs encoding plant-type PEPC were identified, named EdPEPC1-5; and one partial cDNA encoding bacterial-type PEPC was identified. None of the C-4-signature amino acid substitutions which were found in C-4-type PEPC isoforms of terrestrial C-4 plants were found in EdPEPCs. Real-time qPCR experiments indicated that in the high CO2 concentration, all these isoforms were expressed at low levels in leaves and stems. However after exposure to low CO2 concentration, EdPEPC1 was significantly up-expressed in the stems and leaves, and may thus correspond to the C-4-form. The results of enzyme assays and western blotting showed increases in the activities and amount of PEPC in the leaves and stems after incubation at low [CO2]. EdPEPC1, gene that responds to low [CO2], might be involved in the emergence of the inducible C-4-like mechanism in E. densa. For the first time in submersed plants, the results suggested that stems as well as leaves were likely to be involved in the C-4-like mechanism. (C) 2015 Elsevier B.V. All rights reserved. |
| 资助项目 | strategic pilot science and technology projects of the Chinese Academy of Sciences[XDAO5090305] ; National Scientific Foundation of China[30700083] |
| WOS研究方向 | Plant Sciences ; Marine & Freshwater Biology |
| 语种 | 英语 |
| WOS记录号 | WOS:000358095300001 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/232]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Wang, Qing-feng |
| 作者单位 | 1.Chinese Acad Sci, CAS Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Hubei, Peoples R China 2.Hainan Univ, Hainan Key Lab Sustainable Utilizat Trop Bioresou, Haikou, Peoples R China 3.Chinese Acad Sci, Wuhan Bot Garden, Wuhan 430074, Hubei, Peoples R China 4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yin, Li-yan,Wang, Qing-feng,Gu, Shuping. Phosphoenolpyruvate carboxylase in the stem of the submersed species Egeria densa may be involved in an inducible C-4-like mechanism[J]. AQUATIC BOTANY,2015,125:1-8. |
| APA | Yin, Li-yan,Wang, Qing-feng,&Gu, Shuping.(2015).Phosphoenolpyruvate carboxylase in the stem of the submersed species Egeria densa may be involved in an inducible C-4-like mechanism.AQUATIC BOTANY,125,1-8. |
| MLA | Yin, Li-yan,et al."Phosphoenolpyruvate carboxylase in the stem of the submersed species Egeria densa may be involved in an inducible C-4-like mechanism".AQUATIC BOTANY 125(2015):1-8. |
入库方式： OAI收割
来源：武汉植物园
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