IHB OpenIR  > 期刊论文
Impacts of CO2 enrichment on growth and photosynthesis in freshwater and marine diatoms
Hu Hanhua1; Gao Kunshan1,2; Hu, HH, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China
2008-11-01
Source PublicationCHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN0254-4059
Volume26Issue:4Pages:407-414
AbstractThe physiological responses of Nitzschia palea Kutzing, a freshwater diatom, to elevated CO2 were investigated and compared with those of a marine diatom, Chaetoceros muelleri Lemmermann previously reported. Elevated CO2 concentration to 700 mu l/L increased the dissolved inorganic carbon (DIC) and lowered the pH in the cultures of N. palea, thus enhancing the growth by 4%-20% during the whole growth period. High CO2-grown N. palea cells showed lower levels of dark respiration rates and higher I (k) values. Light-saturated photosynthetic rates and photosynthetic efficiencies decreased in N. palea with the doubling CO2 concentration in airflow to the bottom of cultures, although the doubling CO2 concentration in airflow to the surface cultures had few effects on these two photosynthetic parameters. N. palea cells were found to be capable of using HCO3 (-) in addition to gaseous CO2, and the CO2 enrichment decreased their affinity for HCO3 (-) and CO2. Although doubled CO2 level would enhance the biomass of N. palea and C. muelleri to different extents, compared with the marine diatom, it had a significant effect on the specific growth rates of N. palea. In addition, the responses of photosynthetic parameters of N. palea to doubled CO2 concentration were almost opposite to those of C. muelleri.; The physiological responses of Nitzschia palea Kutzing, a freshwater diatom, to elevated CO2 were investigated and compared with those of a marine diatom, Chaetoceros muelleri Lemmermann previously reported. Elevated CO2 concentration to 700 mu l/L increased the dissolved inorganic carbon (DIC) and lowered the pH in the cultures of N. palea, thus enhancing the growth by 4%-20% during the whole growth period. High CO2-grown N. palea cells showed lower levels of dark respiration rates and higher I (k) values. Light-saturated photosynthetic rates and photosynthetic efficiencies decreased in N. palea with the doubling CO2 concentration in airflow to the bottom of cultures, although the doubling CO2 concentration in airflow to the surface cultures had few effects on these two photosynthetic parameters. N. palea cells were found to be capable of using HCO3 (-) in addition to gaseous CO2, and the CO2 enrichment decreased their affinity for HCO3 (-) and CO2. Although doubled CO2 level would enhance the biomass of N. palea and C. muelleri to different extents, compared with the marine diatom, it had a significant effect on the specific growth rates of N. palea. In addition, the responses of photosynthetic parameters of N. palea to doubled CO2 concentration were almost opposite to those of C. muelleri.
SubtypeArticle
KeywordCarbon Dioxide Chaetoceros Muelleri Elevated Co2 Growth Nitzschia Palea Photosynthesis
Department[Hu Hanhua; Gao Kunshan] Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Gao Kunshan] Shantou Univ, Inst Marine Biol, Shantou 515063, Peoples R China
Subject AreaLimnology ; Oceanography
DOI10.1007/s00343-008-0407-7
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
Funding OrganizationNational Natural Science Foundation of China [90411018, 30270036]; Chinese Academy of Sciences ; National Natural Science Foundation of China [90411018, 30270036]; Chinese Academy of Sciences ; National Natural Science Foundation of China [90411018, 30270036]; Chinese Academy of Sciences ; National Natural Science Foundation of China [90411018, 30270036]; Chinese Academy of Sciences
Indexed BySCI
Language英语
WOS Research AreaMarine & Freshwater Biology ; Oceanography
WOS SubjectLimnology ; Oceanography
WOS IDWOS:000262669100012
WOS KeywordINORGANIC CARBON ACQUISITION ; ATMOSPHERIC CO2 ; PHYTOPLANKTON ; ALGAE ; LIMITATION ; PHOTOINHIBITION ; AVAILABILITY ; MECHANISMS ; ANHYDRASE ; LIGHT
Funding OrganizationNational Natural Science Foundation of China [90411018, 30270036]; Chinese Academy of Sciences ; National Natural Science Foundation of China [90411018, 30270036]; Chinese Academy of Sciences ; National Natural Science Foundation of China [90411018, 30270036]; Chinese Academy of Sciences ; National Natural Science Foundation of China [90411018, 30270036]; Chinese Academy of Sciences
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/7888
Collection期刊论文
Corresponding AuthorHu, HH, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China
Affiliation1.Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Shantou Univ, Inst Marine Biol, Shantou 515063, Peoples R China
Recommended Citation
GB/T 7714
Hu Hanhua,Gao Kunshan,Hu, HH, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China. Impacts of CO2 enrichment on growth and photosynthesis in freshwater and marine diatoms[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2008,26(4):407-414.
APA Hu Hanhua,Gao Kunshan,&Hu, HH, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China.(2008).Impacts of CO2 enrichment on growth and photosynthesis in freshwater and marine diatoms.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,26(4),407-414.
MLA Hu Hanhua,et al."Impacts of CO2 enrichment on growth and photosynthesis in freshwater and marine diatoms".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 26.4(2008):407-414.
Files in This Item:
File Name/Size DocType Version Access License
Impacts of CO2 enric(438KB) 开放获取--View Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Hu Hanhua]'s Articles
[Gao Kunshan]'s Articles
[Hu, HH, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China]'s Articles
Baidu academic
Similar articles in Baidu academic
[Hu Hanhua]'s Articles
[Gao Kunshan]'s Articles
[Hu, HH, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Hu Hanhua]'s Articles
[Gao Kunshan]'s Articles
[Hu, HH, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Impacts of CO2 enrichment on growth and photosynthesis in freshwater and marine diatoms.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.